# -*- coding: utf-8 -*-
# Copyright @ 2023 wdcqc/aieud project.
# Open-source under license obtainable in project root (LICENSE.md).

import subprocess

# taken from automatic1111 UI
def run(command, desc=None, errdesc=None, custom_env=None):
    if desc is not None:
        print(desc)

    result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True, env=os.environ if custom_env is None else custom_env)

    if result.returncode != 0:

        message = f"""{errdesc or 'Error running command'}.
Command: {command}
Error code: {result.returncode}
stdout: {result.stdout.decode(encoding="utf8", errors="ignore") if len(result.stdout)>0 else '<empty>'}
stderr: {result.stderr.decode(encoding="utf8", errors="ignore") if len(result.stderr)>0 else '<empty>'}
"""
        raise RuntimeError(message)

    return result.stdout.decode(encoding="utf8", errors="ignore")

# taken from automatic1111 UI
def check_run(command):
    result = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
    return result.returncode == 0

# taken from automatic1111 UI, didn't even fix the TODO
def git_clone(url, dir, name, commithash=None):
    # TODO clone into temporary dir and move if successful
    git = os.environ.get('GIT', "git")

    if os.path.exists(dir):
        if commithash is None:
            return

        current_hash = run(f'"{git}" -C {dir} rev-parse HEAD', None, f"Couldn't determine {name}'s hash: {commithash}").strip()
        if current_hash == commithash:
            return

        run(f'"{git}" -C {dir} fetch', f"Fetching updates for {name}...", f"Couldn't fetch {name}")
        run(f'"{git}" -C {dir} checkout {commithash}', f"Checking out commit for {name} with hash: {commithash}...", f"Couldn't checkout commit {commithash} for {name}")
        return

    run(f'"{git}" clone "{url}" "{dir}"', f"Cloning {name} into {dir}...", f"Couldn't clone {name}")

    if commithash is not None:
        run(f'"{git}" -C {dir} checkout {commithash}', None, "Couldn't checkout {name}'s hash: {commithash}")

if __name__ == "__main__":
    import time
    import argparse

    git_clone("https://github.com/wdcqc/WaveFunctionDiffusion.git", ".", "WaveFunctionDiffusion")
    time.sleep(5.88)
    
    from wfd.webui import start_demo
    parser = argparse.ArgumentParser(description="Demo script for WaveFunctionDiffusion.")
    parser.add_argument(
        "--colab",
        action="store_true", 
        help="Use it in Google Colab.",
    )
    args = parser.parse_args()
    start_demo(args)