fix: remove subtitle type from name unless specified

.dockerignore

@@ -2,4 +2,6 @@ __pycache__/
 *.pyc
 .git
 .env
-metadata
+/to_convert/
+/converted/
+/metadata/

.gitignore

@@ -1 +1,3 @@
-metadata
+/to_convert/
+/converted/
+/metadata/

Dockerfile

@@ -1,7 +1,31 @@
-FROM python:3.13.3-alpine
+FROM debian:bookworm-slim AS builder
+
+# Install ffmpeg and mkvtoolnix
+# but only keep the binaries and libs for ffprobe and mkvmerge
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg mkvtoolnix \
+    && mkdir -p /artifacts/bin /artifacts/lib \
+    && cp $(which ffprobe) /artifacts/bin/ \
+    && cp $(which mkvmerge) /artifacts/bin/ \
+    && cp $(which mkvpropedit) /artifacts/bin/ \
+    && ldd $(which ffprobe) | awk '{print $3}' | xargs -I '{}' cp -v '{}' /artifacts/lib/ || true \
+    && ldd $(which mkvmerge) | awk '{print $3}' | xargs -I '{}' cp -v '{}' /artifacts/lib/ || true \
+    && ldd $(which mkvpropedit) | awk '{print $3}' | xargs -I '{}' cp -v '{}' /artifacts/lib/ || true
+
+# Must be the same base as builder image for shared libraries compatibility
+FROM python:3.13.3-slim-bookworm
+
+COPY --from=builder /artifacts/bin/* /usr/local/bin/
+COPY --from=builder /artifacts/lib/* /usr/local/lib/
+ENV LD_LIBRARY_PATH=/usr/local/lib
 
 WORKDIR /app
 
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
 COPY . .
 
-CMD ["python3.13", "src/server.py"]
+EXPOSE 8000
+
+CMD ["python", "-m", "scripts.server"]

requirements.txt

@@ -0,0 +1 @@
+watchdog==6.0.0

scripts/extract_metadata.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+
+import argparse
+import logging
+import os
+import sys
+
+from src.metadata_extractor import MetadataExtractor
+
+
+def main():
+    logging.basicConfig(
+        level=logging.INFO,
+        format="[%(levelname)s] %(message)s"
+    )
+
+    parser = argparse.ArgumentParser(
+        description="Extract metadata from video files and save as JSON"
+    )
+    parser.add_argument(
+        "input",
+        help="Path to input video file or directory"
+    )
+    parser.add_argument(
+        "-o", "--output",
+        help="Directory path where the output JSON files will be saved"
+    )
+    args = parser.parse_args()
+
+    input_path = args.input
+    output_dir = args.output
+
+    extractor: MetadataExtractor = MetadataExtractor()
+
+    success = False
+    if os.path.isfile(input_path):
+        success = extractor.process_file(input_path, output_dir)
+    elif os.path.isdir(input_path):
+        success = extractor.process_directory(input_path, output_dir)
+    else:
+        logging.error(f"Path not found: {input_path}")
+
+    if not success:
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()

scripts/server.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+
+import argparse
+import logging
+
+from src.env_default import EnvDefault
+from src.server import MeliesServer
+
+
+def main():
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s [%(levelname)s] %(message)s",
+        datefmt=r"%Y-%m-%d %H:%M:%S"
+    )
+
+    parser = argparse.ArgumentParser(
+        description="Starts the Melies server",
+        formatter_class=argparse.RawTextHelpFormatter
+    )
+    parser.add_argument(
+        "-p", "--port",
+        action=EnvDefault,
+        envvar="MELIES_PORT",
+        default=8000,
+        type=int,
+        help="Port on which the server listens"
+    )
+    parser.add_argument(
+        "--max-payload-size",
+        action=EnvDefault,
+        envvar="MELIES_MAX_PAYLOAD_SIZE",
+        default=1e6,
+        type=int,
+        help="Maximum POST payload size in bytes that the server accepts"
+    )
+    parser.add_argument(
+        "--to-convert-dir",
+        action=EnvDefault,
+        envvar="MELIES_TO_CONVERT_DIR",
+        default="to_convert",
+        help="Path to the directory containing medias to convert"
+    )
+    parser.add_argument(
+        "--converted-dir",
+        action=EnvDefault,
+        envvar="MELIES_CONVERTED_DIR",
+        default="converted",
+        help="Path to the directory containing converted medias"
+    )
+    parser.add_argument(
+        "--metadata-dir",
+        action=EnvDefault,
+        envvar="MELIES_METADATA_DIR",
+        default="metadata",
+        help="Path to the directory containing metadata files"
+    )
+    args = parser.parse_args()
+
+    server = MeliesServer(
+        args.port,
+        args.to_convert_dir,
+        args.converted_dir,
+        args.metadata_dir,
+        args.max_payload_size
+    )
+    server.start()
+
+
+if __name__ == "__main__":
+    main()

scripts/write_metadata.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+import argparse
+import logging
+import sys
+
+from src.metadata_writer import MetadataWriter
+
+
+def main():
+    logging.basicConfig(
+        level=logging.INFO,
+        format="[%(levelname)s] %(message)s"
+    )
+
+    parser = argparse.ArgumentParser(
+        description="Write metadata from JSON to video files"
+    )
+    parser.add_argument(
+        "json_file",
+        help="Path to input JSON metadata file"
+    )
+    parser.add_argument(
+        "-o", "--output",
+        help="Path of the output directory"
+    )
+    parser.add_argument(
+        "-s", "--source",
+        help="Source directory (overrides automatic detection)"
+    )
+    args = parser.parse_args()
+
+    json_file = args.json_file
+    output_dir = args.output
+    source_dir = args.source
+
+    writer: MetadataWriter = MetadataWriter()
+
+    success: bool = writer.process_metadata(json_file, source_dir, output_dir)
+
+    if not success:
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()

src/env_default.py

@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+import argparse
+import os
+
+
+# https://stackoverflow.com/a/10551190/11109181
+class EnvDefault(argparse.Action):
+    def __init__(self, envvar, required=True, default=None, help=None, **kwargs):
+        if envvar:
+            if envvar in os.environ:
+                default = os.environ[envvar]
+        if required and default is not None:
+            required = False
+
+        if default is not None and help is not None:
+            help += f" (default: {default})"
+
+        if envvar and help is not None:
+            help += f"\nCan also be specified through the {envvar} environment variable"
+        super(EnvDefault, self).__init__(default=default, required=required, help=help,
+                                         **kwargs)
+
+    def __call__(self, parser, namespace, values, option_string=None):
+        setattr(namespace, self.dest, values)

src/file_handlers.py

@@ -0,0 +1,106 @@
+import json
+import os
+from typing import Optional
+
+
+class FileHandler:
+    def __init__(self, directory: str):
+        self.cache: dict[str, dict] = {}
+        self.directory: str = directory
+
+    def get_files(self, base_path: str = ""):
+        root_path: str = os.path.abspath(self.directory)
+        full_path: str = os.path.join(root_path, base_path)
+        full_path = os.path.abspath(full_path)
+        common_prefix: str = os.path.commonprefix([full_path, root_path])
+
+        if common_prefix != root_path:
+            return []
+
+        return [
+            os.path.join(base_path, f)
+            for f in os.listdir(full_path)
+        ]
+
+    def get_files_meta(self, base_path: str = ""):
+        files: list[str] = self.get_files(base_path)
+        files = [
+            os.path.join(self.directory, f)
+            for f in files
+        ]
+        files_meta: list[dict] = []
+
+        deleted = set(self.cache.keys()) - set(files)
+        for path in deleted:
+            del self.cache[path]
+
+        for path in files:
+            last_modified: float = os.path.getmtime(path)
+            if path not in self.cache or self.cache[path]["ts"] < last_modified:
+                self.update_meta(path)
+
+            files_meta.append(self.cache[path])
+
+        return files_meta
+
+    def update_meta(self, path: str) -> None:
+        self.cache[path] = self.get_meta(path)
+
+    def get_meta(self, path: str) -> dict:
+        return {
+            "path": os.path.relpath(path, self.directory),
+            "filename": os.path.basename(path),
+            "ts": os.path.getmtime(path)
+        }
+
+
+class JsonFileHandler(FileHandler):
+    def read(self, path: str) -> Optional[dict|list]:
+        if path not in self.get_files():
+            return None
+        with open(os.path.join(self.directory, path), "r") as f:
+            data = json.load(f)
+        return data
+
+    def write(self, path: str, data: dict|list) -> bool:
+        if path not in self.get_files():
+            return False
+
+        try:
+            with open(os.path.join(self.directory, path), "w", encoding="utf-8") as f:
+                json.dump(data, f, indent=2, ensure_ascii=False)
+        except:
+            return False
+        return True
+
+
+class MetadataFileHandler(JsonFileHandler):
+    def get_meta(self, path: str) -> dict:
+        meta: dict = super().get_meta(path)
+
+        with open(path, "r") as f:
+            data = json.load(f)
+            is_series = "filename" not in data
+            meta["type"] = "series" if is_series else "film"
+            if is_series:
+                meta["episodes"] = len(data)
+                meta["title"] = meta["filename"].split("_metadata")[0]
+            else:
+                meta["title"] = data["title"]
+
+        return meta
+
+
+class ToConvertFileHandler(FileHandler):
+    def get_meta(self, path: str) -> dict:
+        meta: dict = super().get_meta(path)
+        is_dir: bool = os.path.isdir(path)
+
+        meta["size"] = os.path.getsize(path)
+        meta["type"] = "folder" if is_dir else "media"
+        if is_dir:
+            meta["elements"] = len(os.listdir(path))
+            if not meta["path"].endswith("/"):
+                meta["path"] += "/"
+
+        return meta

src/get_metadata.py

@@ -1,196 +0,0 @@
-#!/usr/bin/env python3
-import argparse
-import os
-import subprocess
-import json
-import sys
-
-SUPPORTED_EXTENSIONS = (".mp4", ".mkv", ".mov", ".avi")
-
-def get_video_metadata(file_path):
-    """
-    Extract metadata from a video file using ffprobe.
-
-    Args:
-        file_path (str): Path to the video file
-
-    Returns:
-        dict: Metadata information
-    """
-    # Get general file info
-    cmd = [
-        "ffprobe", "-v", "quiet", "-print_format", "json",
-        "-show_format", "-show_streams", file_path
-    ]
-
-    try:
-        result = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
-        if result.returncode != 0:
-            print(f"❌ Error processing {file_path}: {result.stderr}")
-            return None
-
-        data = json.loads(result.stdout)
-
-        # Extract filename and title
-        filename = os.path.basename(file_path)
-        title = data.get("format", {}).get("tags", {}).get("title", filename)
-
-        # Initialize metadata structure
-        metadata = {
-            "filename": filename,
-            "title": title,
-            "audio_tracks": [],
-            "subtitle_tracks": []
-        }
-
-        # Process streams
-        for stream in data.get("streams", []):
-            codec_type = stream.get("codec_type")
-
-            if codec_type == "audio":
-                track = {
-                    "index": stream.get("index"),
-                    "language": stream.get("tags", {}).get("language", "und"),
-                    "name": stream.get("tags", {}).get("title", ""),
-                    "channels": stream.get("channels", 0),
-                    "flags": {
-                        "default": stream.get("disposition", {}).get("default", 0) == 1,
-                        "visual_impaired": stream.get("disposition", {}).get("visual_impaired", 0) == 1,
-                        "original": stream.get("disposition", {}).get("original", 0) == 1,
-                        "commentary": stream.get("disposition", {}).get("comment", 0) == 1
-                    }
-                }
-                metadata["audio_tracks"].append(track)
-
-            elif codec_type == "subtitle":
-                track = {
-                    "index": stream.get("index"),
-                    "language": stream.get("tags", {}).get("language", "und"),
-                    "name": stream.get("tags", {}).get("title", ""),
-                    "flags": {
-                        "default": stream.get("disposition", {}).get("default", 0) == 1,
-                        "forced": stream.get("disposition", {}).get("forced", 0) == 1,
-                        "hearing_impaired": stream.get("disposition", {}).get("hearing_impaired", 0) == 1,
-                        "original": stream.get("disposition", {}).get("original", 0) == 1,
-                        "commentary": stream.get("disposition", {}).get("comment", 0) == 1
-                    }
-                }
-                metadata["subtitle_tracks"].append(track)
-
-        return metadata
-
-    except Exception as e:
-        print(f"❌ Error processing {file_path}: {str(e)}")
-        return None
-
-def process_file(file_path, output_dir=None):
-    """
-    Process a single video file and write metadata to JSON.
-
-    Args:
-        file_path (str): Path to the video file
-        output_dir (str, optional): Directory where the output JSON file will be saved
-    """
-    if not os.path.isfile(file_path):
-        print(f"❌ File not found: {file_path}")
-        return False
-
-    if not file_path.lower().endswith(SUPPORTED_EXTENSIONS):
-        print(f"❌ Unsupported file format: {file_path}")
-        return False
-
-    print(f"📊 Extracting metadata from {os.path.basename(file_path)}")
-    metadata = get_video_metadata(file_path)
-
-    if metadata:
-        # Generate output filename based on input file
-        filename = os.path.basename(os.path.splitext(file_path)[0]) + "_metadata.json"
-
-        if output_dir:
-            # Ensure output directory exists
-            os.makedirs(output_dir, exist_ok=True)
-            output_path = os.path.join(output_dir, filename)
-        else:
-            # If no output directory specified, save in the same directory as the input file
-            base_name = os.path.splitext(file_path)[0]
-            output_path = f"{base_name}_metadata.json"
-
-        # Write metadata to JSON file
-        with open(output_path, 'w', encoding='utf-8') as f:
-            json.dump(metadata, f, indent=2, ensure_ascii=False)
-
-        print(f"✅ Metadata saved to {output_path}")
-        return True
-
-    return False
-
-def process_directory(directory_path, output_dir=None):
-    """
-    Process all video files in a directory and write metadata to JSON.
-
-    Args:
-        directory_path (str): Path to the directory
-        output_dir (str, optional): Directory where the output JSON file will be saved
-    """
-    if not os.path.isdir(directory_path):
-        print(f"❌ Directory not found: {directory_path}")
-        return False
-
-    all_metadata = {}
-    file_count = 0
-
-    for root, _, files in os.walk(directory_path):
-        for file in files:
-            if file.lower().endswith(SUPPORTED_EXTENSIONS):
-                file_path = os.path.join(root, file)
-                print(f"📊 Extracting metadata from {file}")
-                metadata = get_video_metadata(file_path)
-
-                if metadata:
-                    # Use relative path as key
-                    rel_path = os.path.relpath(file_path, directory_path)
-                    all_metadata[rel_path] = metadata
-                    file_count += 1
-
-    if file_count == 0:
-        print(f"❌ No supported video files found in {directory_path}")
-        return False
-
-    # Generate output filename based on directory name
-    dir_name = os.path.basename(os.path.normpath(directory_path))
-    filename = f"{dir_name}_metadata.json"
-
-    if output_dir:
-        # Ensure output directory exists
-        os.makedirs(output_dir, exist_ok=True)
-        output_path = os.path.join(output_dir, filename)
-    else:
-        # If no output directory specified, save in the current directory
-        output_path = filename
-
-    # Write all metadata to a single JSON file
-    with open(output_path, 'w', encoding='utf-8') as f:
-        json.dump(all_metadata, f, indent=2, ensure_ascii=False)
-
-    print(f"✅ Metadata for {file_count} files saved to {output_path}")
-    return True
-
-def main():
-    parser = argparse.ArgumentParser(description="Extract metadata from video files and save as JSON.")
-    parser.add_argument("input", help="Path to input video file or directory")
-    parser.add_argument("-o", "--output", help="Directory path where output JSON files will be saved")
-    args = parser.parse_args()
-
-    input_path = args.input
-    output_dir = args.output
-
-    if os.path.isfile(input_path):
-        process_file(input_path, output_dir)
-    elif os.path.isdir(input_path):
-        process_directory(input_path, output_dir)
-    else:
-        print(f"❌ Path not found: {input_path}")
-        sys.exit(1)
-
-if __name__ == "__main__":
-    main()

src/metadata_extractor.py

@@ -0,0 +1,191 @@
+import json
+import logging
+import os
+import subprocess
+from typing import Optional
+
+
+class MetadataExtractor:
+    SUPPORTED_EXTENSIONS = (".mp4", ".mkv", ".mov", ".avi")
+
+    def __init__(self):
+        self.logger: logging.Logger = logging.getLogger("MetadataExtractor")
+
+    def analyze_file(self, path: str) -> Optional[dict]:
+        """
+        Extracts metadata from a video file using ffprobe
+
+        :param path: Path to the video file
+        :return: Metadata information or ``None`` if an error occurred
+        """
+
+        # Get general file info in JSON format
+        cmd: list[str] = [
+            "ffprobe",
+            "-v", "quiet",
+            "-print_format", "json",
+            "-show_format",
+            "-show_streams",
+            path
+        ]
+
+        try:
+            result = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+            if result.returncode != 0:
+                self.logger.error(f"Error processing {path}: {result.stderr}")
+                return None
+
+            data: dict = json.loads(result.stdout)
+
+            # Extract filename and title
+            filename: str = os.path.basename(path)
+            title: str = data.get("format", {}).get("tags", {}).get("title", filename)
+
+            # Initialize metadata structure
+            metadata: dict = {
+                "filename": filename,
+                "title": title,
+                "audio_tracks": [],
+                "subtitle_tracks": []
+            }
+
+            # Process streams
+            for stream in data.get("streams", []):
+                codec_type = stream.get("codec_type")
+                tags = stream.get("tags", {})
+                disposition = stream.get("disposition", {})
+                track = {
+                    "index": stream.get("index"),
+                    "language": tags.get("language", "und"),
+                    "name": tags.get("title", ""),
+                    "flags": {
+                        "default": disposition.get("default", 0) == 1,
+                        "original": disposition.get("original", 0) == 1,
+                        "commentary": disposition.get("commentary", 0) == 1
+                    }
+                }
+
+                if codec_type == "audio":
+                    track |= {
+                        "channels": stream.get("channels", 0)
+                    }
+                    track["flags"] |= {
+                        "visual_impaired": disposition.get("visual_impaired", 0) == 1
+                    }
+                    metadata["audio_tracks"].append(track)
+
+                elif codec_type == "subtitle":
+                    track["flags"] |= {
+                        "forced": disposition.get("forced", 0) == 1,
+                        "hearing_impaired": disposition.get("hearing_impaired", 0) == 1
+                    }
+                    metadata["subtitle_tracks"].append(track)
+
+                elif codec_type == "video":
+                    pass
+
+                elif codec_type == "button":
+                    pass
+
+                else:
+                    self.logger.warning(f"Unknown track codec type '{codec_type}'")
+
+            return metadata
+
+        except Exception as e:
+            self.logger.error(f"Error processing {path}: {str(e)}")
+            return None
+
+    def process_file(self, file_path: str, output_dir: str) -> bool:
+        """
+        Processes a single video file and writes metadata to a JSON file
+
+        :param file_path: Path of the video file
+        :param output_dir: Path of the directory where the output JSON file will be saved
+        :return: True if successful, False otherwise
+        """
+
+        if not os.path.isfile(file_path):
+            self.logger.error(f"File not found: {file_path}")
+            return False
+
+        if not file_path.lower().endswith(self.SUPPORTED_EXTENSIONS):
+            self.logger.error(f"Unsupported file format: {file_path}")
+            return False
+
+        self.logger.debug(f"Extracting metadata from {os.path.basename(file_path)}")
+        metadata: Optional[dict] = self.analyze_file(file_path)
+
+        if metadata:
+            # Generate output filename based on input file
+            filename = os.path.basename(os.path.splitext(file_path)[0]) + "_metadata.json"
+
+            if output_dir:
+                # Ensure output directory exists
+                os.makedirs(output_dir, exist_ok=True)
+                output_path = os.path.join(output_dir, filename)
+            else:
+                # If no output directory specified, save in the same directory as the input file
+                base_name = os.path.splitext(file_path)[0]
+                output_path = f"{base_name}_metadata.json"
+
+            # Write metadata to JSON file
+            with open(output_path, "w", encoding="utf-8") as f:
+                json.dump(metadata, f, indent=2, ensure_ascii=False)
+
+            self.logger.debug(f"Metadata saved to {output_path}")
+            return True
+
+        return False
+
+    def process_directory(self, directory_path: str, output_dir: Optional[str] = None) -> bool:
+        """
+        Processes all video files in a directory and writes metadata to a JSON file
+
+        :param directory_path: Path of the directory
+        :param output_dir: Path of the directory where the output JSON file will be saved
+        :return: True if successful, False otherwise
+        """
+
+        if not os.path.isdir(directory_path):
+            self.logger.error(f"Directory not found: {directory_path}")
+            return False
+
+        all_metadata: dict[str, dict] = {}
+        file_count: int = 0
+
+        for root, _, files in os.walk(directory_path):
+            for file in files:
+                if file.lower().endswith(self.SUPPORTED_EXTENSIONS):
+                    file_path: str = os.path.join(root, file)
+                    self.logger.debug(f"Extracting metadata from {file}")
+                    metadata: Optional[dict] = self.analyze_file(file_path)
+
+                    if metadata:
+                        # Use relative path as key
+                        rel_path: str = os.path.relpath(file_path, directory_path)
+                        all_metadata[rel_path] = metadata
+                        file_count += 1
+
+        if file_count == 0:
+            self.logger.error(f"No supported video files found in {directory_path}")
+            return False
+
+        # Generate output filename based on directory name
+        dir_name: str = os.path.basename(os.path.normpath(directory_path))
+        filename: str = f"{dir_name}_metadata.json"
+
+        if output_dir is not None:
+            # Ensure output directory exists
+            os.makedirs(output_dir, exist_ok=True)
+            output_path = os.path.join(output_dir, filename)
+        else:
+            # If no output directory specified, save in the current directory
+            output_path = filename
+
+        # Write all metadata to a single JSON file
+        with open(output_path, "w", encoding="utf-8") as f:
+            json.dump(all_metadata, f, indent=2, ensure_ascii=False)
+
+        self.logger.debug(f"Metadata for {file_count} files saved to {output_path}")
+        return True

src/metadata_writer.py

@@ -0,0 +1,286 @@
+import json
+import logging
+import os
+import subprocess
+from typing import Optional
+
+
+class MetadataWriter:
+    SUPPORTED_EXTENSIONS = (".mp4", ".mkv", ".mov", ".avi")
+
+    def __init__(self):
+        self.logger: logging.Logger = logging.getLogger("MetadataWriter")
+
+    @staticmethod
+    def get_mkvmerge_cmd(metadata: dict, in_path: str, out_path: str) -> list[str]:
+        cmd: list[str] = [
+            "mkvmerge",
+            "-o", out_path
+        ]
+
+        # Add global metadata (title)
+        if "title" in metadata:
+            cmd.extend(["--title", metadata["title"]])
+
+        # Process audio + subtitle tracks
+        tracks: list[dict] = metadata.get("audio_tracks", []) + metadata.get("subtitle_tracks", [])
+        for track in tracks:
+            # Use the actual track index from the metadata
+            track_id = track.get("index", 0)
+
+            # Set language
+            if "language" in track:
+                cmd.extend(["--language", f"{track_id}:{track["language"]}"])
+
+            # Set title/name
+            if "name" in track and track["name"]:
+                cmd.extend(["--track-name", f"{track_id}:{track["name"]}"])
+
+            # Set disposition flags
+            flags = track.get("flags", {})
+
+            def yes_no(flag: str):
+                return f"{track_id}:{"yes" if flags.get(flag, False) else "no"}"
+
+            cmd.extend(["--default-track", yes_no("default")])
+            cmd.extend(["--forced-track", yes_no("forced")])
+            cmd.extend(["--original-flag", yes_no("original")])
+
+        # Add input file
+        cmd.append(in_path)
+        return cmd
+
+    @staticmethod
+    def get_mkvpropedit_cmd(metadata: dict, path: str) -> list[str]:
+        cmd: list[str] = [
+            "mkvpropedit",
+            path
+        ]
+
+        # Add global metadata (title)
+        if "title" in metadata:
+            cmd.extend(["--edit", "info", "--set", f"title={metadata["title"]}"])
+
+        # Process audio + subtitle tracks
+        tracks: list[dict] = metadata.get("audio_tracks", []) + metadata.get("subtitle_tracks", [])
+        for track in tracks:
+            # Use the actual track index from the metadata
+            track_id = track.get("index", 0)
+
+            cmd.extend(["--edit", f"track:{track_id}"])
+
+            # Set language
+            if "language" in track:
+                cmd.extend(["--set", f"language={track["language"]}"])
+
+            # Set title/name
+            if "name" in track and track["name"]:
+                cmd.extend(["--set", f"name={track["name"]}"])
+
+            # Set disposition flags
+            flags = track.get("flags", {})
+
+            cmd.extend(["--set", f"flag-default={int(flags.get("default", False))}"])
+            cmd.extend(["--set", f"flag-forced={int(flags.get("forced", False))}"])
+            cmd.extend(["--set", f"flag-original={int(flags.get("original", False))}"])
+
+        return cmd
+
+    def apply_metadata(self, metadata: dict, in_path: str, out_path: Optional[str] = None) -> bool:
+        """
+        Writes metadata to a video file using mkvmerge or mkvpropedit
+
+        :param metadata: Metadata information
+        :param in_path: Path of the input video file
+        :param out_path: Path of the output video file. If None, ``"_modified"`` is appended to ``in_path`` instead
+        :return: True if successful, False otherwise
+        """
+
+        if not os.path.isfile(in_path):
+            self.logger.error(f"Input file not found: {in_path}")
+            return False
+
+        if out_path is None:
+            # Create a temporary output file
+            base_name, ext = os.path.splitext(in_path)
+            out_path: str = f"{base_name}_modified{ext}"
+
+        # Build the command
+        overwriting: bool = os.path.abspath(in_path) == os.path.abspath(out_path)
+        cmd: list[str] = (
+            self.get_mkvpropedit_cmd(metadata, in_path)
+            if overwriting else
+            self.get_mkvmerge_cmd(metadata, in_path, out_path)
+        )
+
+        # Execute the command
+        self.logger.debug(f"Writing metadata to {os.path.basename(out_path)}")
+
+        try:
+            result = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+            if result.returncode != 0:
+                self.logger.error(f"Error writing metadata: {result.stderr}")
+                return False
+
+            self.logger.debug(f"Metadata written to {out_path}")
+            return True
+
+        except Exception as e:
+            self.logger.error(f"Error executing {cmd[0]}: {str(e)}")
+            return False
+
+    @staticmethod
+    def read_metadata(path: str) -> Optional[dict]:
+        try:
+            with open(path, "r") as f:
+                metadata: dict = json.load(f)
+            return metadata
+
+        except:
+            return None
+
+    def process_file(self, metadata_or_path: str|dict, file_path: str, output_dir: Optional[str] = None) -> bool:
+        """
+        Processes a single video file with the given metadata
+
+        :param metadata_or_path: Metadata dict or path of the metadata file
+        :param file_path: Path of the video file
+        :param output_dir: Directory to save the output file to
+        :return: True if successful, False otherwise
+        """
+
+        metadata: dict
+        if isinstance(metadata_or_path, str):
+            metadata = self.read_metadata(metadata_or_path)
+            if metadata is None:
+                return False
+        else:
+            metadata = metadata_or_path
+
+        # Create output file path
+        if output_dir is not None:
+            # Ensure output directory exists
+            os.makedirs(output_dir, exist_ok=True)
+
+            # Use the same filename in the output directory
+            output_file = os.path.join(output_dir, os.path.basename(file_path))
+        else:
+            output_file = None
+
+        # Write metadata to video
+        return self.apply_metadata(metadata, file_path, output_file)
+
+    def process_directory(self, metadata_or_path: str|dict, source_dir: str, output_dir: Optional[str] = None) -> bool:
+        """
+        Processes all video files in the metadata dictionary
+
+        :param metadata_or_path: Dictionary of metadata keyed by filename
+        :param source_dir: Directory containing the video files
+        :param output_dir: Directory to save the output files to
+        :return: True if all files were processed successfully, False otherwise
+        """
+
+        metadata: dict
+        if isinstance(metadata_or_path, str):
+            metadata = self.read_metadata(metadata_or_path)
+            if metadata is None:
+                return False
+        else:
+            metadata = metadata_or_path
+
+        if not os.path.isdir(source_dir):
+            self.logger.error(f"Source directory not found: {source_dir}")
+            return False
+
+        # Create output directory if specified
+        if output_dir:
+            os.makedirs(output_dir, exist_ok=True)
+
+        success: bool = True
+        processed_count: int = 0
+
+        # Process each file in the metadata dictionary
+        for filename, file_metadata in metadata.items():
+            # Construct the full path to the video file
+            video_file: str = os.path.join(source_dir, filename)
+
+            if not os.path.isfile(video_file):
+                self.logger.error(f"Video file not found: {video_file}")
+                success = False
+                continue
+
+            # Process the file
+            if self.process_file(file_metadata, video_file, output_dir):
+                processed_count += 1
+            else:
+                success = False
+
+        self.logger.debug(f"Processed {processed_count} out of {len(metadata)} files")
+        return success
+
+    def process_metadata(self, metadata_or_path: str|dict, source_dir: Optional[str] = None, output_dir: Optional[str] = None) -> bool:
+        metadata_as_path: bool = isinstance(metadata_or_path, str)
+
+        metadata: dict
+        if metadata_as_path:
+            metadata = self.read_metadata(metadata_or_path)
+            if metadata is None:
+                return False
+        else:
+            metadata = metadata_or_path
+
+        # Determine if the JSON contains metadata for multiple files or a single file
+        is_multi_file = isinstance(metadata, dict) and all(isinstance(metadata[key], dict) for key in metadata)
+
+        # If source directory is not specified, try to determine it from the JSON filename
+        if source_dir is None and is_multi_file and metadata_as_path:
+            # Extract folder name from JSON filename (e.g., "Millenium" from "Millenium_metadata.json")
+            json_basename: str = os.path.basename(metadata_or_path)
+            if json_basename.endswith("_metadata.json"):
+                folder_name: str = json_basename.split("_metadata.json")[0]
+                potential_source_dir: str = os.path.join(
+                    os.path.dirname(os.path.abspath(metadata_or_path)),
+                    folder_name
+                )
+
+                if os.path.isdir(potential_source_dir):
+                    source_dir: str = potential_source_dir
+                    self.logger.debug(f"Using source directory: {source_dir}")
+
+        # If no output directory is specified, create one based on the source directory
+        if output_dir is None and source_dir is not None:
+            output_dir = os.path.join("ready", os.path.basename(source_dir))
+            self.logger.debug(f"Using output directory: {output_dir}")
+
+        # Process files based on the metadata format
+        if is_multi_file:
+            if source_dir is None:
+                self.logger.error(
+                    "Source directory not specified and could not be determined automatically. " +
+                    "Please specify a source directory with --source or use a JSON filename like 'FolderName_metadata.json'"
+                )
+                return False
+
+            success = self.process_directory(metadata, source_dir, output_dir)
+        else:
+            # Single file metadata
+            if "filename" not in metadata:
+                self.logger.error("Invalid metadata format: missing 'filename' field")
+                return False
+
+            # If source directory is specified, look for the file there
+            video_file: str
+            if source_dir is not None:
+                video_file = os.path.join(source_dir, metadata["filename"])
+            elif metadata_as_path:
+                # Look for the file in the same directory as the JSON
+                video_file = os.path.join(os.path.dirname(metadata_or_path), metadata["filename"])
+            else:
+                self.logger.error(
+                    "Source directory not specified and video path could not be determined automatically. " +
+                    "Please specify a source directory with --source or use JSON filename like 'VideoName_metadata.json'"
+                )
+                return False
+
+            success = self.process_file(metadata, video_file, output_dir)
+        return success

src/public/conversion/index.html

@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Melies - Conversion</title>
+    <link rel="stylesheet" href="/static/css/base.css">
+    <link rel="stylesheet" href="/static/css/conversion.css">
+    <link rel="shortcut icon" href="/static/images/icon3.svg" type="image/svg+xml">
+    <script src="/static/js/conversion.js"></script>
+</head>
+<body>
+    <header id="header">
+        <a href="/"><img class="logo" src="/static/images/icon3.svg"></a>
+        <h1>Media Conversion</h1>
+    </header>
+    <main>
+        <button id="folder-template" class="template file folder">
+            <img src="/static/images/collection.svg">
+            <div class="name"></div>
+            <div class="children"><span class="num"></span> element(s)</div>
+        </button>
+        <button id="media-template" class="template file media">
+            <img src="/static/images/film.svg">
+            <div class="name"></div>
+            <div class="info"><span class="size"></span> / <span class="ext"></span></div>
+        </button>
+        <div id="selected-template" class="template file">
+            <button class="deselect">Deselect</button>
+            <div class="name"></div>
+        </div>
+        <label id="agent-template" class="template agent">
+            <input type="radio" name="selected-agent">
+            <div class="container">
+                <div class="icon"></div>
+                <div class="name"></div>
+            </div>
+        </label>
+        <div id="to-convert-panel" class="panel">
+            <h2 class="title">To convert</h2>
+            <button id="up">Parent directory</button>
+            <div id="no-file" class="empty-msg">Director is empty</div>
+            <div id="files"></div>
+        </div>
+        <div id="selected-panel" class="panel">
+            <h2 class="title">Selected</h2>
+            <div class="toolbar">
+                <button id="show-files" class="hidden"><img src="/static/images/prev.svg">Back to files</button>
+                <button id="deselect-all">Deselect All</button>
+                <button id="continue" disabled>
+                    <div class="disabled">Select a media</div>
+                    <div class="enabled">Continue<img src="/static/images/next.svg"></div>
+                </button>
+            </div>
+            <div id="selected"></div>
+        </div>
+        <div id="agents-panel" class="panel hidden">
+            <h2 class="title">Agents</h2>
+            <div id="no-agent" class="empty-msg show">No registered agent</div>
+            <div id="agents"></div>
+            <button id="convert" disabled>
+                <div class="disabled">Select an agent</div>
+                <div class="enabled">Convert</div>
+            </button>
+        </div>
+    </main>
+</body>
+</html>

src/public/index.html

@@ -3,51 +3,28 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Metadata Editor</title>
+    <title>Melies</title>
     <link rel="stylesheet" href="/static/css/base.css">
     <link rel="stylesheet" href="/static/css/index.css">
+    <link rel="shortcut icon" href="/static/images/icon3.svg" type="image/svg+xml">
     <script src="/static/js/index.js"></script>
 </head>
 <body>
-    <header>
-        <h1>Metadata Editor</h1>
+    <header id="header">
+        <a href="/"><img class="logo" src="/static/images/icon3.svg"></a>
+        <h1>Melies</h1>
     </header>
     <main>
-        <a id="film-template" class="template file film">
-            <img src="/static/images/film.svg">
-            <div class="title"></div>
-        </a>
-        <a id="series-template" class="template file series">
-            <img src="/static/images/series.svg">
-            <div class="title"></div>
-            <div class="episodes"><span class="num"></span> episode(s)</div>
-        </a>
-        <div class="toolbar">
-            <div class="tool">
-                <label for="sort-by">Sort by</label>
-                <select id="sort-by">
-                    <option value="title">Title</option>
-                    <option value="ts">Last modified</option>
-                </select>
-            </div>
-            <div class="tool">
-                <label for="sort-desc">Order</label>
-                <label class="toggle">
-                    <input type="checkbox" id="sort-desc">
-                    <div class="off">ASC</div>
-                    <div class="on">DESC</div>
-                </label>
-            </div>
-            <div class="tool">
-                <label for="filter">Filter</label>
-                <select id="filter">
-                    <option value="all">All</option>
-                    <option value="film">Films</option>
-                    <option value="series">Series</option>
-                </select>
-            </div>
-        </div>
-        <div id="files"></div>
+        <nav id="pages">
+            <a class="page" href="/conversion/">
+                <img src="/static/images/conversion.svg">
+                <div class="name">Conversion</div>
+            </a>
+            <a class="page" href="/metadata/">
+                <img src="/static/images/metadata.svg">
+                <div class="name">Metadata</div>
+            </a>
+        </nav>
     </main>
 </body>
 </html>

src/public/metadata/edit/index.html

@@ -3,9 +3,10 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Edit</title>
+    <title>Melies - Metadata Editor</title>
     <link rel="stylesheet" href="/static/css/base.css">
     <link rel="stylesheet" href="/static/css/edit.css">
+    <link rel="shortcut icon" href="/static/images/icon3.svg" type="image/svg+xml">
     <script src="/static/js/edit.mjs" type="module"></script>
 </head>
 <body>
@@ -13,8 +14,12 @@
         <img src="/static/images/improve.svg">
         <img class="clicked" src="/static/images/improve_clicked.svg">
     </button>
+    <header id="header">
+        <a href="/"><img class="logo" src="/static/images/icon3.svg"></a>
+        <h1>Metadata Editor</h1>
+    </header>
     <header id="toolbar">
-        <a href="/">Home</a>
+        <a href="/metadata/">Back</a>
         <button id="check-integrity">Check integrity</button>
         <button id="improve-all">Improve all names</button>
         <button id="save">Save</button>

src/public/metadata/index.html

@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Melies - Metadata Editor</title>
+    <link rel="stylesheet" href="/static/css/base.css">
+    <link rel="stylesheet" href="/static/css/metadata.css">
+    <link rel="shortcut icon" href="/static/images/icon3.svg" type="image/svg+xml">
+    <script src="/static/js/metadata.js"></script>
+</head>
+<body>
+    <header id="header">
+        <a href="/"><img class="logo" src="/static/images/icon3.svg"></a>
+        <h1>Metadata Editor</h1>
+    </header>
+    <main>
+        <a id="film-template" class="template file film">
+            <img src="/static/images/film.svg">
+            <div class="title"></div>
+        </a>
+        <a id="series-template" class="template file series">
+            <img src="/static/images/series.svg">
+            <div class="title"></div>
+            <div class="episodes"><span class="num"></span> episode(s)</div>
+        </a>
+        <div class="toolbar">
+            <div class="tool">
+                <label for="sort-by">Sort by</label>
+                <select id="sort-by">
+                    <option value="title">Title</option>
+                    <option value="ts">Last modified</option>
+                </select>
+            </div>
+            <div class="tool">
+                <label for="sort-desc">Order</label>
+                <label class="toggle">
+                    <input type="checkbox" id="sort-desc">
+                    <div class="off">ASC</div>
+                    <div class="on">DESC</div>
+                </label>
+            </div>
+            <div class="tool">
+                <label for="filter">Filter</label>
+                <select id="filter">
+                    <option value="all">All</option>
+                    <option value="film">Films</option>
+                    <option value="series">Series</option>
+                </select>
+            </div>
+        </div>
+        <div id="files"></div>
+    </main>
+</body>
+</html>

src/public/static/css/base.css

@@ -1,3 +1,13 @@
+@keyframes moon-pulse {
+    from {
+        filter: drop-shadow(0px 0px 0px #e7d7a8);
+    }
+
+    to {
+        filter: drop-shadow(0px 0px 12px white);
+    }
+}
+
 * {
     margin: 0;
     box-sizing: border-box;
@@ -29,19 +39,17 @@ header {
     gap: 0.8em;
     color: white;
 
-    a, button {
-        padding: 0.4em 0.8em;
-        border: none;
-        color: black;
-        background-color: #e4e4e4;
-        font-size: inherit;
-        font-family: inherit;
-        text-decoration: none;
-        border-radius: 0.2em;
-        cursor: pointer;
+    &#header {
+        align-items: center;
 
-        &:hover {
-            background-color: #dbdbdb;
+        img.logo {
+            width: 4em;
+            height: 4em;
+            object-fit: contain;
+
+            &:hover {
+                animation: moon-pulse 2s alternate infinite linear;
+            }
         }
     }
 }

src/public/static/css/conversion.css

@@ -0,0 +1,265 @@
+body {
+    display: flex;
+    flex-direction: column;
+}
+
+main {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 1em;
+    flex: 1;
+    overflow-y: hidden;
+}
+
+.panel {
+    display: flex;
+    flex-direction: column;
+    padding: 0.8em;
+    border: solid black 2px;
+    overflow: hidden;
+
+    &.hidden {
+        display: none;
+    }
+
+    .title {
+        margin: 0.4em 0;
+    }
+}
+
+button {
+    font-family: inherit;
+    font-size: inherit;
+    padding: 0.4em 0.8em;
+    border-radius: 0.4em;
+    background: none;
+    cursor: pointer;
+    border: solid #c5c5c5 2px;
+    text-align: center;
+    font-weight: bold;
+
+    &:hover {
+        background-color: #f8f8f8;
+    }
+}
+
+#up {
+    width: 100%;
+    padding: 0.8em 1.6em;
+    border-radius: 1.2em;
+
+    &:not(.show) {
+        display: none;
+    }
+}
+
+#files {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, 12em);
+    grid-auto-rows: 12em;
+    gap: 0.8em;
+    place-items: center;
+    padding: 0.8em 0;
+    justify-content: space-evenly;
+    height: 100%;
+    overflow: auto;
+    
+    .file {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: flex-start;
+        width: 100%;
+        height: 100%;
+        text-decoration: none;
+        color: black;
+        font-family: inherit;
+        font-size: inherit;
+        padding: 0.4em;
+        border-radius: 1.2em;
+        background: none;
+        cursor: pointer;
+        gap: 0.2em;
+        border: solid transparent 2px;
+        
+        &.selected {
+            border-color: rgb(153, 226, 153);
+        }
+
+        &:hover {
+            background-color: #f8f8f8;
+        }
+
+        img {
+            width: 5em;
+            height: 5em;
+        }
+
+        .name {
+            overflow-wrap: anywhere;
+            text-align: center;
+            font-weight: bold;
+            flex-shrink: 1;
+            overflow: hidden;
+        }
+
+        .info, .children {
+            font-size: 80%;
+            color: rgb(75, 75, 75);
+            font-style: italic;
+            font-weight: normal;
+        }
+    }
+}
+
+#selected {
+    display: flex;
+    flex-direction: column;
+    height: 100%;
+    overflow: auto;
+
+    .file {
+        display: flex;
+        padding: 0.4em 0.8em;
+        gap: 0.4em;
+        align-items: center;
+
+        &:nth-child(even) {
+            background-color: #fafafa;
+        }
+
+        .deselect {
+            background-color: #ffd8c6;
+
+            &:hover {
+                background-color: #ffc3a7;
+            }
+        }
+
+        .name {
+            overflow-wrap: anywhere;
+        }
+    }
+}
+
+.toolbar {
+    display: flex;
+    gap: 0.4em;
+    
+    button, button .enabled {
+        display: flex;
+        gap: 0.2em;
+        align-items: center;
+
+        &.hidden {
+            display: none;
+        }
+        
+        img {
+            width: 1.4em;
+            height: 1.4em;
+        }
+    }
+}
+
+.empty-msg {
+    color: #4d4d4d;
+    font-style: italic;
+    font-size: 120%;
+    text-align: center;
+    padding: 1.2em 0.4em;
+
+    &:not(.show) {
+        display: none;
+    }
+}
+
+#agents {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, 12em);
+    grid-auto-rows: 12em;
+    gap: 0.8em;
+    place-items: center;
+    padding: 0.8em 0;
+    justify-content: space-evenly;
+    height: 100%;
+    overflow: auto;
+    
+    .agent {
+        input {
+            display: none;
+        }
+
+        .container {
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            justify-content: flex-start;
+            width: 100%;
+            height: 100%;
+            text-decoration: none;
+            color: black;
+            font-family: inherit;
+            font-size: inherit;
+            padding: 0.4em;
+            border-radius: 1.2em;
+            background: none;
+            cursor: pointer;
+            gap: 0.2em;
+            border: none;
+            
+            &.selected {
+                border-color: #99e299;
+            }
+
+            &:hover {
+                background-color: #f8f8f8;
+            }
+
+            .icon {
+                width: 8em;
+                height: 8em;
+                mask-image: url("/static/images/agent.svg");
+                mask-size: contain;
+                background-color: black;
+            }
+
+            .name {
+                overflow-wrap: anywhere;
+                text-align: center;
+                font-weight: bold;
+                font-size: 120%;
+                flex-shrink: 1;
+                overflow: hidden;
+            }
+        }
+
+        input:checked + .container {
+            .icon {
+                background-color: #1bb11b;
+            }
+
+            .name {
+                color: #1bb11b;
+            }
+        }
+    }
+}
+
+#convert {
+    font-size: 120%;
+}
+
+#continue, #convert {
+    &:not(:disabled) {
+        .disabled {
+            display: none;
+        }
+    }
+
+    &:disabled {
+        .enabled {
+            display: none;
+        }
+    }
+}

src/public/static/css/edit.css

@@ -4,6 +4,27 @@ main {
     gap: 1.2em;
 }
 
+header#toolbar {
+    padding: 0.8em;
+    background-color: #4b4b4b;
+
+    a, button {
+        padding: 0.4em 0.8em;
+        border: none;
+        color: black;
+        background-color: #e4e4e4;
+        font-size: inherit;
+        font-family: inherit;
+        text-decoration: none;
+        border-radius: 0.2em;
+        cursor: pointer;
+
+        &:hover {
+            background-color: #dbdbdb;
+        }
+    }
+}
+
 #toggle-notifs {
     margin-left: auto;
 }

src/public/static/css/index.css

@@ -1,12 +1,14 @@
-#files {
+#pages {
     display: grid;
+    max-width: calc(max(50%, 20em));
+    margin: 0 auto;
     grid-template-columns: repeat(auto-fit, minmax(15em, 1fr));
     grid-auto-rows: 15em;
     gap: 0.8em;
     place-items: center;
     padding: 0.8em 0;
     
-    .file {
+    .page {
         display: flex;
         flex-direction: column;
         align-items: center;
@@ -20,10 +22,6 @@
         padding: 0.4em;
         border-radius: 1.2em;
 
-        &.hidden {
-            display: none;
-        }
-
         &:hover {
             background-color: #f8f8f8;
         }
@@ -33,64 +31,11 @@
             height: 10em;
         }
 
-        .title {
+        .name {
             overflow-wrap: anywhere;
             text-align: center;
             font-weight: bold;
-        }
-    }
-}
-
-.toolbar {
-    display: flex;
-    gap: 1.2em;
-    border-bottom: solid black 1px;
-    padding: 0.4em 0;
-
-    .tool {
-        display: flex;
-        flex-direction: column;
-        gap: 0.2em;
-
-        label[for] {
-            font-weight: bold;
-        }
-
-        input, select {
-            font-family: inherit;
-            font-size: inherit;
-            height: 100%;
-        }
-
-        .toggle {
-            height: 2em;
-            border-radius: 1em;
-            display: grid;
-            grid-template-columns: 1fr 1fr;
-            user-select: none;
-            cursor: pointer;
-
-            input {
-                display: none;
-
-                &:not(:checked) ~ .off, &:checked ~ .on {
-                    background-color: #6ee74a;
-                }
-            }
-
-            div {
-                padding: 0 0.4em;
-                display: grid;
-                place-items: center;
-
-                &.off {
-                    border-radius: 1em 0 0 1em;
-                }
-
-                &.on {
-                    border-radius: 0 1em 1em 0;
-                }
-            }
+            font-size: 150%;
         }
     }
 }

src/public/static/css/metadata.css

@@ -0,0 +1,96 @@
+#files {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(15em, 1fr));
+    grid-auto-rows: 15em;
+    gap: 0.8em;
+    place-items: center;
+    padding: 0.8em 0;
+    
+    .file {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: flex-start;
+        width: 100%;
+        height: 100%;
+        text-decoration: none;
+        color: black;
+        font-family: inherit;
+        font-size: inherit;
+        padding: 0.4em;
+        border-radius: 1.2em;
+
+        &.hidden {
+            display: none;
+        }
+
+        &:hover {
+            background-color: #f8f8f8;
+        }
+
+        img {
+            width: 10em;
+            height: 10em;
+        }
+
+        .title {
+            overflow-wrap: anywhere;
+            text-align: center;
+            font-weight: bold;
+        }
+    }
+}
+
+.toolbar {
+    display: flex;
+    gap: 1.2em;
+    border-bottom: solid black 1px;
+    padding: 0.4em 0;
+
+    .tool {
+        display: flex;
+        flex-direction: column;
+        gap: 0.2em;
+
+        label[for] {
+            font-weight: bold;
+        }
+
+        input, select {
+            font-family: inherit;
+            font-size: inherit;
+            height: 100%;
+        }
+
+        .toggle {
+            height: 2em;
+            border-radius: 1em;
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            user-select: none;
+            cursor: pointer;
+
+            input {
+                display: none;
+
+                &:not(:checked) ~ .off, &:checked ~ .on {
+                    background-color: #6ee74a;
+                }
+            }
+
+            div {
+                padding: 0 0.4em;
+                display: grid;
+                place-items: center;
+
+                &.off {
+                    border-radius: 1em 0 0 1em;
+                }
+
+                &.on {
+                    border-radius: 0 1em 1em 0;
+                }
+            }
+        }
+    }
+}

src/public/static/images/agent.svg

@@ -0,0 +1,498 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="128"
+   height="128"
+   viewBox="0 0 128 128"
+   version="1.1"
+   id="svg1"
+   sodipodi:docname="agent.svg"
+   inkscape:version="1.4 (e7c3feb100, 2024-10-09)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="true"
+     inkscape:zoom="5.7798541"
+     inkscape:cx="66.610678"
+     inkscape:cy="60.468655"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1">
+    <inkscape:grid
+       id="grid1"
+       units="px"
+       originx="0"
+       originy="0"
+       spacingx="1"
+       spacingy="1"
+       empcolor="#0099e5"
+       empopacity="0.30196078"
+       color="#0099e5"
+       opacity="0.14901961"
+       empspacing="16"
+       enabled="true"
+       visible="true" />
+  </sodipodi:namedview>
+  <defs
+     id="defs1">
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+       id="path-effect17"
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+           sodipodi:nodetypes="zzzzzzzzz" />
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+</svg>

src/public/static/images/metadata.svg

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="128"
+   height="128"
+   viewBox="0 0 128 128"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.4 (e7c3feb100, 2024-10-09)"
+   sodipodi:docname="metadata.svg"
+   inkscape:export-filename="icon3.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="true"
+     inkscape:zoom="5.6568543"
+     inkscape:cx="56.303377"
+     inkscape:cy="65.672542"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
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+       units="px"
+       originx="0"
+       originy="0"
+       spacingx="1"
+       spacingy="1"
+       empcolor="#0099e5"
+       empopacity="0.30196078"
+       color="#0099e5"
+       opacity="0.14901961"
+       empspacing="16"
+       enabled="true"
+       visible="true" />
+  </sodipodi:namedview>
+  <defs
+     id="defs1" />
+  <g
+     inkscape:label="Layer 1"
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+           style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.91666661;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1;stroke-dasharray:none"
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+           id="g5"
+           transform="translate(2.5)"
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+          <path
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+          <path
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+             d="m 70,60 4,4 -4,4"
+             id="path5" />
+        </g>
+      </g>
+    </g>
+  </g>
+</svg>

src/public/static/js/conversion.js

@@ -0,0 +1,227 @@
+let selected = []
+let currentPath = []
+
+const SIZES = ["", "K", "M", "G", "T"]
+
+function formatSize(bytes) {
+    let order = Math.floor(Math.log10(bytes) / 3)
+    if (bytes > Math.pow(10, (order + 1) * 3) / 2) {
+        order += 1
+    }
+    let size = bytes / Math.pow(10, order * 3)
+    size = Math.round(size * 10) / 10
+    const prefix = SIZES[order]
+    return `${size}${prefix}B`
+}
+
+function makeFolder(meta) {
+    const file = document.getElementById("folder-template").cloneNode(true)
+    file.querySelector(".name").innerText = meta.filename
+    file.querySelector(".children .num").innerText = meta.elements
+    file.addEventListener("dblclick", () => {
+        currentPath.push(meta.filename)
+        navigate()
+    })
+    return file
+}
+
+function makeMedia(meta) {
+    const file = document.getElementById("media-template").cloneNode(true)
+    file.querySelector(".name").innerText = meta.filename.split(".").slice(0, -1).join(".")
+    file.querySelector(".size").innerText = formatSize(meta.size)
+    file.querySelector(".ext").innerText = meta.filename.split(".").slice(-1)[0].toUpperCase()
+    return file
+}
+
+function makeFile(meta) {
+    let file
+    switch (meta.type) {
+        case "folder":
+            file = makeFolder(meta)
+            break
+        case "media":
+            file = makeMedia(meta)
+            break
+        default:
+            throw new Error(`Invalid file type '${meta.type}'`)
+    }
+
+    file.title = meta.filename
+    file.id = null
+    file.dataset.path = meta.path
+    file.classList.remove("template")
+    if (selected.includes(meta.path)) {
+        file.classList.add("selected")
+    }
+    
+    file.addEventListener("click", e => {
+        if (e.ctrlKey) {
+            e.preventDefault()
+            toggleSelectFile(meta)
+        }
+    })
+    return file
+}
+
+function makeAgent(meta) {
+    const agent = document.getElementById("agent-template").cloneNode(true)
+    agent.classList.remove("template")
+    agent.removeAttribute("id")
+    agent.dataset.uuid = meta.uuid
+    agent.querySelector(".name").innerText = meta.name
+    const input = agent.querySelector("input[type='radio']")
+    input.value = meta.uuid
+    input.addEventListener("change", () => updateConvertBtn())
+    return agent
+}
+
+function toggleSelectFile(meta) {
+    if (selected.includes(meta.path)) {
+        deselectFile(meta.path)
+    } else {
+        selectFile(meta)
+    }
+}
+
+function selectFile(meta) {
+    selected.push(meta.path)
+    document.querySelector(`.file[data-path='${meta.path}']`)?.classList?.add("selected")
+    const list = document.getElementById("selected")
+    const line = document.getElementById("selected-template").cloneNode(true)
+    line.classList.remove("template")
+    line.id = null
+    line.querySelector(".name").innerText = meta.path
+    line.dataset.path = meta.path
+    line.querySelector(".deselect").addEventListener("click", () => {
+        deselectFile(meta.path)
+    })
+    list.appendChild(line)
+
+    const continueBtn = document.getElementById("continue")
+    continueBtn.disabled = false
+}
+
+function deselectFile(path) {
+    selected = selected.filter(p => p !== path)
+    document.querySelector(`#files .file[data-path='${path}']`)?.classList?.remove("selected")
+    document.querySelector(`#selected .file[data-path='${path}']`)?.remove()
+
+    const continueBtn = document.getElementById("continue")
+    continueBtn.disabled = selected.length === 0
+}
+
+function deselectAll() {
+    selected.forEach(path => {
+        deselectFile(path)
+    })
+    showFiles()
+}
+
+/**
+ * 
+ * @param {object[]} files 
+ */
+function addFiles(files) {
+    const emptyMsg = document.getElementById("no-file")
+    if (files.length === 0) {
+        emptyMsg.classList.add("show")
+    } else {
+        emptyMsg.classList.remove("show")
+    }
+    const list = document.getElementById("files")
+    const list2 = document.createElement("div")
+    list2.innerHTML = ""
+    const filenames = files.map(meta => meta.filename)
+    // Copy array because sort changes it in place
+    Array.from(filenames).sort().forEach(filename => {
+        const i = filenames.indexOf(filename)
+        const meta = files[i]
+        const file = makeFile(meta)
+        list2.appendChild(file)
+    })
+    list.replaceChildren(...list2.children)
+
+    const upBtn = document.getElementById("up")
+    if (currentPath.length === 0) {
+        upBtn.classList.remove("show")
+    } else {
+        upBtn.classList.add("show")
+    }
+}
+
+function navigate() {
+    const url = new URL("/api/files/to_convert", window.location.origin)
+    url.searchParams.set("f", currentPath.join("/"))
+
+    fetch(url.href).then(res => {
+        return res.json()
+    }).then(files => {
+        addFiles(files)
+    })
+}
+
+function showFiles() {
+    document.getElementById("show-files").classList.add("hidden")
+    document.getElementById("continue").classList.remove("hidden")
+    document.getElementById("agents-panel").classList.add("hidden")
+    document.getElementById("to-convert-panel").classList.remove("hidden")
+}
+
+function showAgents() {
+    document.getElementById("continue").classList.add("hidden")
+    document.getElementById("show-files").classList.remove("hidden")
+    document.getElementById("to-convert-panel").classList.add("hidden")
+    document.getElementById("agents-panel").classList.remove("hidden")
+}
+
+function updateConvertBtn() {
+    const agent = document.querySelector("#agents .agent input:checked")
+    const convertBtn = document.getElementById("convert")
+    convertBtn.disabled = !agent
+}
+
+function addAgents(agents) {
+    const emptyMsg = document.getElementById("no-agent")
+    if (agents.length === 0) {
+        emptyMsg.classList.add("show")
+    } else {
+        emptyMsg.classList.remove("show")
+    }
+    const selectedAgent = document.querySelector("#agents .agent input:checked")?.parentElement
+
+    const list = document.getElementById("agents")
+    const list2 = document.createElement("div")
+    list2.innerHTML = ""
+    const agentNames = agents.map(meta => meta.name)
+    // Copy array because sort changes it in place
+    Array.from(agentNames).sort().forEach(name => {
+        const i = agentNames.indexOf(name)
+        const meta = agents[i]
+        const agent = makeAgent(meta)
+        if (selectedAgent?.dataset?.uuid === meta.uuid) {
+            agent.querySelector("input").checked = true
+        }
+        list2.appendChild(agent)
+    })
+    list.replaceChildren(...list2.children)
+    updateConvertBtn()
+}
+
+window.addEventListener("load", () => {
+    document.getElementById("up").addEventListener("dblclick", () => {
+        if (currentPath.length !== 0) {
+            currentPath = currentPath.slice(0, -1)
+            navigate()
+        }
+    })
+    document.getElementById("show-files").addEventListener("click", () => {
+        showFiles()
+    })
+    document.getElementById("deselect-all").addEventListener("click", () => {
+        deselectAll()
+    })
+    document.getElementById("continue").addEventListener("click", () => {
+        showAgents()
+    })
+    navigate()
+})

src/public/static/js/index.js

@@ -1,107 +0,0 @@
-let fileNodes = []
-
-function makeFilm(meta) {
-    const file = document.getElementById("film-template").cloneNode(true)
-    file.querySelector(".title").innerText = meta.title
-    return file
-}
-
-function makeSeries(meta) {
-    const file = document.getElementById("series-template").cloneNode(true)
-    file.querySelector(".title").innerText = meta.title
-    file.querySelector(".episodes .num").innerText = meta.episodes
-    return file
-}
-
-function makeFile(meta) {
-    let file
-    switch (meta.type) {
-        case "film":
-            file = makeFilm(meta)
-            break
-        case "series":
-            file = makeSeries(meta)
-            break
-        default:
-            throw new Error(`Invalid file type '${meta.type}'`)
-    }
-
-    file.title = meta.filename
-    file.id = null
-    file.classList.remove("template")
-    const url = new URL("/edit/", window.location.origin)
-    url.searchParams.set("f", meta.filename)
-    file.href = url.href
-    return file
-}
-
-/**
- * 
- * @param {object[]} files 
- */
-function addFiles(files) {
-    const list = document.getElementById("files")
-    list.innerHTML = ""
-    const filenames = files.map(meta => meta.filename)
-    // Copy array because sort changes it in place
-    Array.from(filenames).sort().forEach(filename => {
-        const i = filenames.indexOf(filename)
-        const meta = files[i]
-        const file = makeFile(meta)
-        list.appendChild(file)
-        fileNodes.push([meta, file])
-    })
-}
-
-function sortFiles() {
-    const sortBy = document.getElementById("sort-by").value
-    const sortDesc = document.getElementById("sort-desc").checked
-    const filter = document.getElementById("filter").value
-
-    fileNodes.forEach(([meta, node]) => {
-        if (node.classList.contains(filter) || filter === "all") {
-            node.classList.remove("hidden")
-        } else {
-            node.classList.add("hidden")
-        }
-    })
-    
-    let changed = false
-    do {
-        changed = false
-        for (let i = 0; i < fileNodes.length - 1; i++) {
-            /** @type {[object, HTMLElement]} */
-            const pair1 = fileNodes[i]
-            /** @type {[object, HTMLElement]} */
-            const pair2 = fileNodes[i + 1]
-            const [meta1, node1] = pair1
-            const [meta2, node2] = pair2
-            
-            let swap = false
-            if (sortDesc) {
-                swap = !(meta1[sortBy] >= meta2[sortBy])
-            } else {
-                swap = !(meta2[sortBy] >= meta1[sortBy])
-            }
-            if (swap) {
-                fileNodes[i] = pair2
-                fileNodes[i + 1] = pair1
-                node2.parentElement.insertBefore(node2, node1)
-                changed = true
-            }
-        }
-    } while (changed)
-}
-
-window.addEventListener("load", () => {
-    fetch("/api/files").then(res => {
-        return res.json()
-    }).then(files => {
-        addFiles(files)
-        sortFiles()
-    })
-
-    document.getElementById("sort-by").addEventListener("change", () => sortFiles())
-    document.getElementById("sort-desc").addEventListener("click", () => sortFiles())
-    document.getElementById("filter").addEventListener("change", () => sortFiles())
-})

src/public/static/js/integrity_manager.mjs

@@ -224,7 +224,7 @@ export default class IntegrityManager {
                 
                 if (parts.includes("pgs")) {
                     fields.type = "PGS"
-                } else {
+                } else if (parts.includes("srt")) {
                     fields.type = "SRT"
                 }
                 break
@@ -316,7 +316,9 @@ export default class IntegrityManager {
                 if (fields.flags.hearing_impaired) {
                     name += " SDH"
                 }
-                name += " | " + fields.type
+                if (fields.type) {
+                    name += " | " + fields.type
+                }
                 break
         }
         return name

src/public/static/js/metadata.js

@@ -0,0 +1,107 @@
+let fileNodes = []
+
+function makeFilm(meta) {
+    const file = document.getElementById("film-template").cloneNode(true)
+    file.querySelector(".title").innerText = meta.title
+    return file
+}
+
+function makeSeries(meta) {
+    const file = document.getElementById("series-template").cloneNode(true)
+    file.querySelector(".title").innerText = meta.title
+    file.querySelector(".episodes .num").innerText = meta.episodes
+    return file
+}
+
+function makeFile(meta) {
+    let file
+    switch (meta.type) {
+        case "film":
+            file = makeFilm(meta)
+            break
+        case "series":
+            file = makeSeries(meta)
+            break
+        default:
+            throw new Error(`Invalid file type '${meta.type}'`)
+    }
+
+    file.title = meta.filename
+    file.id = null
+    file.classList.remove("template")
+    const url = new URL("/metadata/edit/", window.location.origin)
+    url.searchParams.set("f", meta.filename)
+    file.href = url.href
+    return file
+}
+
+/**
+ * 
+ * @param {object[]} files 
+ */
+function addFiles(files) {
+    const list = document.getElementById("files")
+    list.innerHTML = ""
+    const filenames = files.map(meta => meta.filename)
+    // Copy array because sort changes it in place
+    Array.from(filenames).sort().forEach(filename => {
+        const i = filenames.indexOf(filename)
+        const meta = files[i]
+        const file = makeFile(meta)
+        list.appendChild(file)
+        fileNodes.push([meta, file])
+    })
+}
+
+function sortFiles() {
+    const sortBy = document.getElementById("sort-by").value
+    const sortDesc = document.getElementById("sort-desc").checked
+    const filter = document.getElementById("filter").value
+
+    fileNodes.forEach(([meta, node]) => {
+        if (node.classList.contains(filter) || filter === "all") {
+            node.classList.remove("hidden")
+        } else {
+            node.classList.add("hidden")
+        }
+    })
+    
+    let changed = false
+    do {
+        changed = false
+        for (let i = 0; i < fileNodes.length - 1; i++) {
+            /** @type {[object, HTMLElement]} */
+            const pair1 = fileNodes[i]
+            /** @type {[object, HTMLElement]} */
+            const pair2 = fileNodes[i + 1]
+            const [meta1, node1] = pair1
+            const [meta2, node2] = pair2
+            
+            let swap = false
+            if (sortDesc) {
+                swap = !(meta1[sortBy] >= meta2[sortBy])
+            } else {
+                swap = !(meta2[sortBy] >= meta1[sortBy])
+            }
+            if (swap) {
+                fileNodes[i] = pair2
+                fileNodes[i + 1] = pair1
+                node2.parentElement.insertBefore(node2, node1)
+                changed = true
+            }
+        }
+    } while (changed)
+}
+
+window.addEventListener("load", () => {
+    fetch("/api/files/metadata").then(res => {
+        return res.json()
+    }).then(files => {
+        addFiles(files)
+        sortFiles()
+    })
+
+    document.getElementById("sort-by").addEventListener("change", () => sortFiles())
+    document.getElementById("sort-desc").addEventListener("click", () => sortFiles())
+    document.getElementById("filter").addEventListener("change", () => sortFiles())
+})

src/public/static/js/tracks_table.mjs

@@ -119,6 +119,7 @@ export class Track {
 
 
                 input.value = value
+                break
         
             default:
                 break

src/server.py

@@ -1,56 +1,52 @@
-#!/usr/bin/env python3
+from __future__ import annotations
 
-import argparse
 import json
+import logging
 import os
 import socketserver
+import time
+from functools import partial
 from http import HTTPStatus
 from http.server import SimpleHTTPRequestHandler
+from logging import Logger
 from typing import Optional
 from urllib.parse import parse_qs, unquote, urlparse
 
+from watchdog.events import (FileClosedEvent, FileDeletedEvent, FileMovedEvent,
+                             FileSystemEventHandler)
+from watchdog.observers import Observer
+from watchdog.observers.api import BaseObserver
 
-# https://stackoverflow.com/a/10551190/11109181
-class EnvDefault(argparse.Action):
-    def __init__(self, envvar, required=True, default=None, help=None, **kwargs):
-        if envvar:
-            if envvar in os.environ:
-                default = os.environ[envvar]
-        if required and default is not None:
-            required = False
-        
-        if default is not None and help is not None:
-            help += f" (default: {default})"
-        
-        if envvar and help is not None:
-            help += f"\nCan also be specified through the {envvar} environment variable"
-        super(EnvDefault, self).__init__(default=default, required=required, help=help, 
-                                         **kwargs)
-
-    def __call__(self, parser, namespace, values, option_string=None):
-        setattr(namespace, self.dest, values)
+from src.file_handlers import ToConvertFileHandler, MetadataFileHandler
 
 
-class MyHandler(SimpleHTTPRequestHandler):
-    MAX_PAYLOAD_SIZE = 1e6
-    DATA_DIR = "metadata"
-    CACHE = {}
-    
-    def __init__(self, *args, **kwargs):
+class HTTPHandler(SimpleHTTPRequestHandler):
+    def __init__(self, server: MeliesServer, *args, **kwargs):
+        self.server_: MeliesServer = server
+        self.to_convert_files: ToConvertFileHandler = self.server_.to_convert_files
+        self.metadata_files: MetadataFileHandler = self.server_.metadata_files
+
         super().__init__(
             *args,
-            directory="public",
+            directory=os.path.join(os.path.dirname(__file__), "public"),
             **kwargs
         )
+        
         self.query: dict = {}
         self.data: Optional[dict|list] = None
     
+    def log_message(self, format, *args):
+        self.server_.logger.info("%s - %s" % (
+            self.client_address[0],
+            format % args
+        ))
+    
     def read_body_data(self):
         try:
             size: int = int(self.headers["Content-Length"])
-            if size > self.MAX_PAYLOAD_SIZE:
+            if size > self.server_.max_payload_size:
                 self.send_error(HTTPStatus.CONTENT_TOO_LARGE)
-                self.log_error(f"Payload is too big ({self.MAX_PAYLOAD_SIZE=}B)")
+                self.log_error(f"Payload is too big ({self.server_.max_payload_size=}B)")
                 return False
             raw_data = self.rfile.read(size)
             self.data = json.loads(raw_data)
@@ -61,16 +57,20 @@ class MyHandler(SimpleHTTPRequestHandler):
         return True
     
     def do_GET(self):
-        self.path = unquote(self.path)
-        self.query = parse_qs(urlparse(self.path).query)
+        parsed = urlparse(unquote(self.path))
+        self.path = parsed.path
+        self.query = parse_qs(parsed.query)
+        
         if self.path.startswith("/api/"):
             self.handle_api_get(self.path.removeprefix("/api/").removesuffix("/"))
             return
         super().do_GET()
     
     def do_POST(self):
-        self.path = unquote(self.path)
-        self.query = parse_qs(urlparse(self.path).query)
+        parsed = urlparse(unquote(self.path))
+        self.path = parsed.path
+        self.query = parse_qs(parsed.query)
+        
         if self.path.startswith("/api/"):
             self.handle_api_post(self.path.removeprefix("/api/").removesuffix("/"))
             return
@@ -78,12 +78,18 @@ class MyHandler(SimpleHTTPRequestHandler):
 
     def handle_api_get(self, path: str):
         self.log_message(f"API request at {path}")
-        if path == "files":
-            files: list[str] = self.get_files_meta()
+        if path == "files/to_convert":
+            base_path: str = self.query.get("f", [""])[0]
+            files: list[dict] = self.to_convert_files.get_files_meta(base_path)
             self.send_json(files)
+        
+        elif path == "files/metadata":
+            files: list[dict] = self.metadata_files.get_files_meta()
+            self.send_json(files)
+        
         elif path.startswith("file"):
             filename: str = path.split("/", 1)[1]
-            data = self.read_file(filename)
+            data = self.metadata_files.read(filename)
             if data is None:
                 self.send_error(HTTPStatus.NOT_FOUND)
             else:
@@ -96,9 +102,11 @@ class MyHandler(SimpleHTTPRequestHandler):
         if path.startswith("file"):
             if self.read_body_data():
                 filename: str = path.split("/", 1)[1]
-                if self.write_file(filename, self.data):
+                if self.metadata_files.write(filename, self.data):
                     self.send_response(HTTPStatus.OK)
                     self.end_headers()
+                else:
+                    self.send_error(HTTPStatus.INTERNAL_SERVER_ERROR)
         else:
             self.send_response(HTTPStatus.NOT_FOUND, f"Unknown path {path}")
             self.end_headers()
@@ -108,108 +116,82 @@ class MyHandler(SimpleHTTPRequestHandler):
         self.send_header("Content-Type", "application/json")
         self.end_headers()
         self.wfile.write(json.dumps(data).encode("utf-8"))
-    
-    def get_files(self):
-        return os.listdir(self.DATA_DIR)
-    
-    def read_file(self, filename: str) -> Optional[dict|list]:
-        if filename not in self.get_files():
-            return None
-        with open(os.path.join(self.DATA_DIR, filename), "r") as f:
-            data = json.load(f)
-        return data
 
-    def write_file(self, filename: str, data: dict|list) -> bool:
-        if filename not in self.get_files():
-            self.send_error(HTTPStatus.NOT_FOUND)
-            return False
+
+class MeliesServer(FileSystemEventHandler):
+    def __init__(
+        self,
+        port: int,
+        to_convert_dir: str,
+        converted_dir: str,
+        metadata_dir: str,
+        max_payload_size: int):
         
+        super().__init__()
+        self.logger: Logger = logging.getLogger("MeliesServer")
+        
+        self.port: int = port
+        self.to_convert_dir: str = to_convert_dir
+        self.converted_dir: str = converted_dir
+        self.metadata_dir: str = metadata_dir
+        self.max_payload_size: int = max_payload_size
+        
+        if not os.path.exists(self.to_convert_dir):
+            os.mkdir(self.to_convert_dir)
+        if not os.path.exists(self.converted_dir):
+            os.mkdir(self.converted_dir)
+        if not os.path.exists(self.metadata_dir):
+            os.mkdir(self.metadata_dir)
+
+        self.to_convert_files: ToConvertFileHandler = ToConvertFileHandler(self.to_convert_dir)
+        self.metadata_files: MetadataFileHandler = MetadataFileHandler(self.metadata_dir)
+        
+        self.httpd: Optional[socketserver.TCPServer] = None
+        self.observer: BaseObserver = Observer()
+        self.observer.schedule(
+            self,
+            self.converted_dir,
+            recursive=True,
+            event_filter=[FileDeletedEvent, FileMovedEvent, FileClosedEvent]
+        )
+        self.last_event: float = time.time()
+
+        self.http_handler_cls = partial(HTTPHandler, self)
+    
+    def start(self):
+        self.observer.start()
         try:
-            with open(os.path.join(self.DATA_DIR, filename), "w", encoding="utf-8") as f:
-                json.dump(data, f, indent=2, ensure_ascii=False)
-        except:
-            self.send_error(HTTPStatus.INTERNAL_SERVER_ERROR)
-            return False
-        return True
-
-    def get_files_meta(self):
-        files: list[str] = self.get_files()
-        files_meta: list[dict] = []
-        
-        deleted = set(self.CACHE.keys()) - set(files)
-        for filename in deleted:
-            del self.CACHE[deleted]
-        
-        for filename in files:
-            path: str = os.path.join(self.DATA_DIR, filename)
-            last_modified: float = os.path.getmtime(path)
-            if filename not in self.CACHE or self.CACHE[filename]["ts"] < last_modified:
-                self.update_file_meta(filename)
-            
-            files_meta.append(self.CACHE[filename])
-        
-        return files_meta
+            with socketserver.TCPServer(("", self.port), self.http_handler_cls) as self.httpd:
+                self.logger.info(f"Serving on port {self.port}")
+                self.httpd.serve_forever()
+        except KeyboardInterrupt:
+            pass
+        self.stop()
     
-    def update_file_meta(self, filename: str):
-        path: str = os.path.join(self.DATA_DIR, filename)
-        
-        meta = {
-            "filename": filename,
-            "ts": os.path.getmtime(path)
-        }
-        
-        with open(path, "r") as f:
-            data = json.load(f)
-            is_series = "filename" not in data
-            meta["type"] = "series" if is_series else "film"
-            if is_series:
-                meta["episodes"] = len(data)
-                meta["title"] = filename.split("_metadata")[0]
-            else:
-                meta["title"] = data["title"]
-        
-        self.CACHE[filename] = meta
+    def stop(self):
+        self.observer.stop()
+        self.observer.join()
 
+    def on_deleted(self, event: FileDeletedEvent):
+        self.logger.info(f"Converted media deleted: {event.src_path}")
+        self.delete_metadata(event.src_path)
+        return super().on_deleted(event)
 
-def main():
-    parser = argparse.ArgumentParser(
-        description="Starts the Melies server",
-        formatter_class=argparse.RawTextHelpFormatter
-    )
-    parser.add_argument(
-        "-p", "--port",
-        action=EnvDefault,
-        envvar="MELIES_PORT",
-        default=8000,
-        type=int,
-        help="Port on which the server listens"
-    )
-    parser.add_argument(
-        "--max-payload-size",
-        action=EnvDefault,
-        envvar="MELIES_MAX_PAYLOAD_SIZE",
-        default=1e6,
-        type=int,
-        help="Maximum POST payload size in bytes that the server accepts"
-    )
-    parser.add_argument(
-        "--metadata-dir",
-        action=EnvDefault,
-        envvar="MELIES_METADATA_DIR",
-        default="metadata",
-        help="Path to the directory containing metadata files"
-    )
-    args = parser.parse_args()
+    def on_moved(self, event: FileMovedEvent):
+        self.logger.info(f"Converted media moved: {event.src_path} -> {event.dest_path}")
+        self.rename_metadata(event.src_path, event.dest_path)
+        return super().on_moved(event)
+
+    def on_closed(self, event: FileClosedEvent):
+        self.logger.info(f"Converted media created or modified: {event.src_path}")
+        self.extract_metadata(event.src_path)
+        return super().on_closed(event)
     
+    def extract_metadata(self, path: str):
+        pass
     
-    port = args.port
-    MyHandler.MAX_PAYLOAD_SIZE = args.max_payload_size
-    MyHandler.DATA_DIR = args.metadata_dir
-    
-    with socketserver.TCPServer(("", port), MyHandler) as httpd:
-        print(f"Serving on port {port}")
-        httpd.serve_forever()
+    def rename_metadata(self, src: str, dst: str):
+        pass
 
-
-if __name__ == "__main__":
-    main()
+    def delete_metadata(self, path: str):
+        pass

src/write_metadata.py

@@ -1,273 +0,0 @@
-#!/usr/bin/env python3
-import argparse
-import json
-import os
-import subprocess
-import sys
-
-def read_metadata_json(json_file):
-    """
-    Read metadata from a JSON file.
-
-    Args:
-        json_file (str): Path to the JSON file
-
-    Returns:
-        dict: Metadata information
-    """
-    try:
-        with open(json_file, 'r', encoding='utf-8') as f:
-            metadata = json.load(f)
-        return metadata
-    except Exception as e:
-        print(f"❌ Error reading JSON file: {str(e)}")
-        return None
-
-def write_metadata_to_video(metadata, input_file, output_file=None):
-    """
-    Write metadata to a video file using mkvmerge.
-
-    Args:
-        metadata (dict): Metadata information
-        input_file (str): Path to the input video file
-        output_file (str, optional): Path to the output video file
-
-    Returns:
-        bool: True if successful, False otherwise
-    """
-    if not os.path.isfile(input_file):
-        print(f"❌ Input file not found: {input_file}")
-        return False
-
-    if not output_file:
-        # Create a temporary output file
-        base_name, ext = os.path.splitext(input_file)
-        output_file = f"{base_name}_modified{ext}"
-
-    # Start building the mkvmerge command
-    cmd = ["mkvmerge", "-o", output_file]
-
-    # Add global metadata (title)
-    if "title" in metadata:
-        cmd.extend(["--title", metadata["title"]])
-
-    # Process audio tracks
-    for track in metadata.get("audio_tracks", []):
-        # Use the actual track index from the metadata
-        track_id = track.get("index", 0)
-
-        # Set language
-        if "language" in track:
-            cmd.extend([f"--language", f"{track_id}:{track['language']}"])
-
-        # Set title/name
-        if "name" in track and track["name"]:
-            cmd.extend([f"--track-name", f"{track_id}:{track['name']}"])
-
-        # Set disposition flags
-        flags = track.get("flags", {})
-
-        if flags.get("default", False):
-            cmd.extend([f"--default-track", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--default-track", f"{track_id}:no"])
-
-        if flags.get("forced", False):
-            cmd.extend([f"--forced-track", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--forced-track", f"{track_id}:no"])
-
-        if flags.get("original", False):
-            cmd.extend([f"--original-flag", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--original-flag", f"{track_id}:no"])
-
-    # Process subtitle tracks
-    for track in metadata.get("subtitle_tracks", []):
-        # Use the actual track index from the metadata
-        track_id = track.get("index", 0)
-
-        # Set language
-        if "language" in track:
-            cmd.extend([f"--language", f"{track_id}:{track['language']}"])
-
-        # Set title/name
-        if "name" in track and track["name"]:
-            cmd.extend([f"--track-name", f"{track_id}:{track['name']}"])
-
-        # Set disposition flags
-        flags = track.get("flags", {})
-
-        if flags.get("default", False):
-            cmd.extend([f"--default-track", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--default-track", f"{track_id}:no"])
-
-        if flags.get("forced", False):
-            cmd.extend([f"--forced-track", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--forced-track", f"{track_id}:no"])
-
-        if flags.get("original", False):
-            cmd.extend([f"--original-flag", f"{track_id}:yes"])
-        else:
-            cmd.extend([f"--original-flag", f"{track_id}:no"])
-
-    # Add input file
-    cmd.append(input_file)
-
-    # Execute the mkvmerge command
-    print(f"🔄 Writing metadata to {os.path.basename(output_file)}")
-    print(f"Command: {' '.join(cmd)}")
-
-    try:
-        result = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
-        if result.returncode != 0:
-            print(f"❌ Error writing metadata: {result.stderr}")
-            return False
-
-        print(f"✅ Metadata written to {output_file}")
-        return True
-    except Exception as e:
-        print(f"❌ Error executing mkvmerge: {str(e)}")
-        return False
-
-def process_single_file(metadata, video_file, output_dir=None):
-    """
-    Process a single video file with the given metadata.
-
-    Args:
-        metadata (dict): Metadata for the video file
-        video_file (str): Path to the video file
-        output_dir (str, optional): Directory to save the output file
-
-    Returns:
-        bool: True if successful, False otherwise
-    """
-    if not os.path.isfile(video_file):
-        print(f"❌ Video file not found: {video_file}")
-        return False
-
-    # Create output file path
-    if output_dir:
-        # Ensure output directory exists
-        os.makedirs(output_dir, exist_ok=True)
-
-        # Use the same filename in the output directory
-        output_file = os.path.join(output_dir, os.path.basename(video_file))
-    else:
-        output_file = None  # Let write_metadata_to_video create a default output file
-
-    # Write metadata to video
-    return write_metadata_to_video(metadata, video_file, output_file)
-
-def process_directory(metadata_dict, source_dir, output_dir=None):
-    """
-    Process all video files in the metadata dictionary.
-
-    Args:
-        metadata_dict (dict): Dictionary of metadata keyed by filename
-        source_dir (str): Directory containing the video files
-        output_dir (str, optional): Directory to save the output files
-
-    Returns:
-        bool: True if all files were processed successfully, False otherwise
-    """
-    if not os.path.isdir(source_dir):
-        print(f"❌ Source directory not found: {source_dir}")
-        return False
-
-    # Create output directory if specified
-    if output_dir:
-        os.makedirs(output_dir, exist_ok=True)
-
-    success = True
-    processed_count = 0
-
-    # Process each file in the metadata dictionary
-    for filename, file_metadata in metadata_dict.items():
-        # Construct the full path to the video file
-        video_file = os.path.join(source_dir, filename)
-
-        if not os.path.isfile(video_file):
-            print(f"❌ Video file not found: {video_file}")
-            success = False
-            continue
-
-        # Process the file
-        if process_single_file(file_metadata, video_file, output_dir):
-            processed_count += 1
-        else:
-            success = False
-
-    print(f"✅ Processed {processed_count} out of {len(metadata_dict)} files")
-    return success
-
-def main():
-    parser = argparse.ArgumentParser(description="Write metadata from JSON to video files.")
-    parser.add_argument("json_file", help="Path to input JSON metadata file")
-    parser.add_argument("-o", "--output", help="Path to output directory")
-    parser.add_argument("-s", "--source", help="Source directory (overrides automatic detection)")
-    args = parser.parse_args()
-
-    json_file = args.json_file
-    output_dir = args.output
-    source_dir = args.source
-
-    if not os.path.isfile(json_file):
-        print(f"❌ JSON file not found: {json_file}")
-        sys.exit(1)
-
-    # Read metadata from JSON
-    metadata = read_metadata_json(json_file)
-    if not metadata:
-        sys.exit(1)
-
-    # Determine if the JSON contains metadata for multiple files or a single file
-    is_multi_file = isinstance(metadata, dict) and all(isinstance(metadata[key], dict) for key in metadata)
-
-    # If source directory is not specified, try to determine it from the JSON filename
-    if not source_dir and is_multi_file:
-        # Extract folder name from JSON filename (e.g., "Millenium" from "Millenium_metadata.json")
-        json_basename = os.path.basename(json_file)
-        if "_metadata.json" in json_basename:
-            folder_name = json_basename.split("_metadata.json")[0]
-            potential_source_dir = os.path.join(os.path.dirname(os.path.abspath(json_file)), folder_name)
-
-            if os.path.isdir(potential_source_dir):
-                source_dir = potential_source_dir
-                print(f"📂 Using source directory: {source_dir}")
-
-    # If no output directory is specified, create one based on the source directory
-    if not output_dir and source_dir:
-        output_dir = os.path.join("ready", os.path.basename(source_dir))
-        print(f"📂 Using output directory: {output_dir}")
-
-    # Process files based on the metadata format
-    if is_multi_file:
-        if not source_dir:
-            print("❌ Source directory not specified and could not be determined automatically.")
-            print("   Please specify a source directory with --source or use a JSON filename like 'FolderName_metadata.json'")
-            sys.exit(1)
-
-        success = process_directory(metadata, source_dir, output_dir)
-    else:
-        # Single file metadata
-        if "filename" not in metadata:
-            print("❌ Invalid metadata format: missing 'filename' field")
-            sys.exit(1)
-
-        # If source directory is specified, look for the file there
-        if source_dir:
-            video_file = os.path.join(source_dir, metadata["filename"])
-        else:
-            # Look for the file in the same directory as the JSON
-            video_file = os.path.join(os.path.dirname(json_file), metadata["filename"])
-
-        success = process_single_file(metadata, video_file, output_dir)
-
-    if not success:
-        sys.exit(1)
-
-if __name__ == "__main__":
-    main()