import json
import os
import subprocess


def compile(root_path):
    subprocess.run([
        "typst",
        "c",
        "--root="+root_path,
        os.path.join(root_path, ".gallery", "gallery.typ"),
        os.path.join(root_path, ".gallery", "page-{n}.png")
    ])


def query(root_path):
    proc = subprocess.run([
        "typst",
        "query",
        "--root="+root_path,
        os.path.join(root_path, ".gallery", "gallery.typ"),
        "metadata"
    ], capture_output=True)
    return json.loads(proc.stdout)


def main():
    root_path = os.path.abspath(
        os.path.join(
            os.path.dirname(__file__),
            os.path.pardir
        )
    )
    
    compile(root_path)
    metadata = query(root_path)
    for entry in metadata:
        name = entry["value"]["name"]
        page = entry["value"]["page"]
        from_path = os.path.join(root_path, ".gallery", f"page-{page}.png")
        to_path = os.path.join(root_path, ".gallery", f"{name}.png")
        os.rename(from_path, to_path)


if __name__ == "__main__":
    main()