#!/usr/bin/env python3
"""CLI tool for VoiceAgent to interact with the Companion Web UI and Browser.

Commands:
  python bin/web_tool.py open [url]      - Open a URL (or http://localhost:8888) in macOS default browser
  python bin/web_tool.py show <filepath> - Display a workspace file visually in the Web UI drawer
  python bin/web_tool.py launch          - Launch the Companion Web UI in default browser
"""

import json
import os
import sys
import urllib.request
import webbrowser
from pathlib import Path

DEFAULT_WEB_URL = "http://localhost:8888"


def open_browser(url: str = DEFAULT_WEB_URL):
    if not url.startswith("http://") and not url.startswith("https://"):
        url = "http://" + url
    try:
        os.system(f'open "{url}"')
        print(f"Opened {url} in default browser.")
        return True
    except Exception as e:
        print(f"Could not open browser: {e}")
        return False


def show_file_in_web_ui(filepath: str, web_url: str = DEFAULT_WEB_URL):
    try:
        req_url = f"{web_url}/api/show_file"
        data = json.dumps({"path": filepath}).encode("utf-8")
        req = urllib.request.Request(req_url, data=data, headers={"Content-Type": "application/json"})
        with urllib.request.urlopen(req, timeout=3.0) as resp:
            if resp.status == 200:
                print(f"File '{filepath}' sent to Web UI drawer.")
                return True
    except Exception as e:
        print(f"Could not notify Web UI server: {e}")

    # Fall back to opening file directly
    abs_path = Path(filepath).expanduser().resolve()
    if abs_path.exists():
        os.system(f'open "{abs_path}"')
        print(f"Opened {abs_path} locally.")
        return True
    print(f"File not found: {filepath}")
    return False


def main():
    if len(sys.argv) < 2:
        open_browser(DEFAULT_WEB_URL)
        return

    cmd = sys.argv[1].lower()

    if cmd in ("open", "browser", "launch"):
        target_url = sys.argv[2] if len(sys.argv) >= 3 else DEFAULT_WEB_URL
        open_browser(target_url)

    elif cmd in ("show", "refer", "file", "view"):
        if len(sys.argv) < 3:
            print("Usage: python bin/web_tool.py show <filepath>")
            sys.exit(1)
        filepath = sys.argv[2]
        show_file_in_web_ui(filepath)

    else:
        # Treat single argument as URL or Filepath
        arg = sys.argv[1]
        if arg.startswith("http://") or arg.startswith("https://") or "localhost" in arg:
            open_browser(arg)
        else:
            show_file_in_web_ui(arg)


if __name__ == "__main__":
    main()