#!/usr/bin/env python3
from argparse import ArgumentParser
from json import dump, load
from pathlib import Path
from subprocess import run

from requests import get

parser = ArgumentParser()
parser.add_argument("path", nargs="?", default=Path.cwd())
args = parser.parse_args()
path = Path(args.path)

if not path.is_dir():
    print("Invalid path")
    exit(1)

for console in path.iterdir():
    if (
        console.is_dir()
        and Path(console / "roms").is_dir()
        and list(Path(console / "roms").iterdir())
    ):
        # run has_files
        run(["has_files.sh", f"{console.name}/roms", console.name, "false", path])

        # download metadata
        metadatas = get(
            "https://raw.githubusercontent.com/linuxserver/emulatorjs/master/metadata/"
            + console.name
            + ".json"
        ).json()

        # load json or create empty object
        metafile = Path(path / "metadata" / f"{console.name}.json")

        if metafile.is_file():
            with open(metafile, "r") as file:
                metas = load(file)
        else:
            metas = {}

        # loop over roms without hashes
        for rom in Path(path / "hashes" / console.name / "roms").iterdir():
            if rom.is_file() and "Disc" not in rom.stem:
                # get rom hash
                with open(rom, "r") as file:
                    hash = file.read()

                # skip if hash match
                if hash in metadatas.keys():
                    continue

                # get rom ref
                for id, metadata in metadatas.items():
                    # skip if no name
                    if "name" not in metadata:
                        continue

                    rom_name = rom.stem.split(".")[0].split("(")[0].strip().lower()
                    meta_name = metadata["name"].split("(")[0].strip().lower()

                    if rom_name == meta_name and (
                        "ref" in metadata or "logo" in metadata
                    ):
                        ref = metadata["ref"] if "ref" in metadata else id
                        print(f"Found {ref} for {rom.stem}")
                        metas[hash] = {"ref": ref}
                        break

        # write json
        with open(metafile, "w") as file:
            dump(metas, file)