#!/usr/bin/env python3
"""
CLI entry point: start the OpenAI-compatible webmind-brain server.

Usage:
    python serve.py
    python serve.py --port 8080
    python serve.py --db ~/my-brain --model my-brain-v2
"""

import argparse
import os
import sys

def main():
    parser = argparse.ArgumentParser(description="Webmind Brain — OpenAI-compatible server")
    parser.add_argument("--port", type=int, default=int(os.environ.get("PORT", "8000")),
                        help="Port to listen on (default: 8000)")
    parser.add_argument("--host", default="0.0.0.0",
                        help="Host to bind to (default: 0.0.0.0)")
    parser.add_argument("--db", default=os.environ.get("BRAIN_DB_PATH", os.path.expanduser("~/nexus-brain")),
                        help="Path to brain database directory")
    parser.add_argument("--model", default=os.environ.get("MODEL_NAME", "webmind-brain-v1"),
                        help="Model name to report in API responses")
    args = parser.parse_args()

    # Set env vars so server.py picks them up
    os.environ["BRAIN_DB_PATH"] = args.db
    os.environ["PORT"] = str(args.port)
    os.environ["MODEL_NAME"] = args.model

    # Find and import the server
    # Look for server.py in the engine source
    engine_paths = [
        os.path.join(os.path.dirname(__file__), "engine"),
        os.path.expanduser("~/webmind-research/papers/new-gen-ai"),
    ]

    server_path = None
    for p in engine_paths:
        candidate = os.path.join(p, "server.py")
        if os.path.exists(candidate):
            server_path = p
            break

    if server_path is None:
        print("Error: Could not find server.py. Set WEBMIND_ENGINE_PATH or place engine/ alongside this file.")
        sys.exit(1)

    sys.path.insert(0, server_path)

    import uvicorn
    from server import app

    print(f"Starting webmind-brain server")
    print(f"  Host: {args.host}:{args.port}")
    print(f"  DB:   {args.db}")
    print(f"  Model: {args.model}")
    uvicorn.run(app, host=args.host, port=args.port)

if __name__ == "__main__":
    main()