"""Regenerate the open_world_city example using the unity_agent package.

Usage::

    python examples/generate_example.py

This re-creates ``examples/open_world_city/`` from scratch using the same
tool chain the orchestrator would use.
"""

from __future__ import annotations

import sys
from pathlib import Path

# Make the package importable when run directly.
ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT))

from unity_agent.config import Settings
from unity_agent.transport.unity_transport import UnityTransport
from unity_agent.tools.unity_tools import (
    GenerateCompleteGameTool,
    WriteCSharpScriptTool,
)
from unity_agent.qa import ProjectQA


CAMERA_CONTROLLER_CS = """\
using UnityEngine;

namespace UnityAgent
{
    /// <summary>
    /// Convenience alias for <see cref="ThirdPersonCamera"/>. Lets designers
    /// attach a component named CameraController if they prefer that name.
    /// </summary>
    public class CameraController : ThirdPersonCamera
    {
        // All behaviour is inherited from ThirdPersonCamera.
    }
}
"""


def main() -> int:
    examples_dir = ROOT / "examples"
    settings = Settings(output_dir=str(examples_dir), product_name="open_world_city")
    transport = UnityTransport(settings)
    transport.open_project("open_world_city")

    # Clear the destination so we always start fresh.
    import shutil
    if (examples_dir / "open_world_city").exists():
        shutil.rmtree(examples_dir / "open_world_city")
    transport.open_project("open_world_city")

    result = GenerateCompleteGameTool(settings, transport).run(
        game_name="open_world_city", preset="open_world_city",
        project_name="open_world_city",
    )
    print(result.summary)

    # Add the CameraController alias the user spec asks for.
    cam_result = WriteCSharpScriptTool(settings, transport).run(
        filename="CameraController.cs", code=CAMERA_CONTROLLER_CS,
        project_name="open_world_city",
    )
    print(cam_result.summary)

    # QA the result.
    report = ProjectQA(examples_dir / "open_world_city").run()
    print(report.summary())
    return 0 if report.passed else 1


if __name__ == "__main__":
    sys.exit(main())