#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from __future__ import annotations

import argparse
import os

from schema import InstructionSetSchema

description = """Examples:
    - Default theme (black on white):
        python main.py schema.xml -o out.jpg

    - Dark theme (white on black):
        python main.py schema.xml -o out.jpg -c dark.json

    - Blueprint theme (white on blue):
        python main.py schema.xml -o out.jpg -c blueprint.json

    - Transparent background:
        python main.py schema.xml -o out.png -c transparent.json
    
    - Directory mode:
        python main.py -d -o images/ schemas/
"""


def processFile(inPath: str, outPath: str, confPath: str, display: bool) -> None:
    schema = InstructionSetSchema(inPath, confPath, display)
    schema.save(outPath)


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description=description, formatter_class=argparse.RawTextHelpFormatter)
    parser.add_argument("schema", help="Path to the schema description. Accepted formats are: YAML, JSON and XML")
    parser.add_argument("-o", "--output", help="Output path. By default, the output file will have the same name as the schema description with the extension .png")
    parser.add_argument("-c", "--config", help="Path to the config file", default="config.json")
    parser.add_argument("-D", "--display", help="Enable pygame display of the result", action="store_true")
    parser.add_argument("-d", "--directory", help="Enable directory mode. If set, the input and output paths are directories and all files inside the input directory are processed", action="store_true")
    
    args = parser.parse_args()
    
    if args.directory:
        if not os.path.isdir(args.schema):
            print(f"{args.schema} is not a directory")
            exit(-1)
        
        output = args.output
        if output is None:
            output = args.schema
        
        if not os.path.isdir(output):
            print(f"{output} is not a directory")
            exit(-1)
        
        paths = os.listdir(args.schema)
        for path in paths:
            inPath = os.path.join(args.schema, path)
            outPath = os.path.join(output, path)
            outPath = os.path.splitext(outPath)[0] + ".png"
            
            processFile(inPath, outPath, args.config, args.display)
    
    else:
        output = args.output
        if output is None:
            output = os.path.splitext(args.schema)[0] + ".png"
        
        processFile(args.schema, output, args.config, args.display)