import sys
from pathlib import Path

import cv2
import uvicorn

from bookmark.camera import CameraSource
from bookmark.capture_strategies.manual_button import ManualButtonStrategy
from bookmark.capture_strategies.motion_stop import MotionStopStrategy
from bookmark.capture_strategies.stable_centered import StableCenteredStrategy
from bookmark.catalogue import Catalogue
from bookmark.config import AppConfig
from bookmark.main import create_app
from bookmark.session import IntakeSession


def build_strategy(config: AppConfig, reference_frame):
    if config.trigger_strategy == "manual":
        return ManualButtonStrategy()
    if config.trigger_strategy == "motion_stop":
        return MotionStopStrategy()
    if config.trigger_strategy == "stable_centered":
        return StableCenteredStrategy(reference_frame=reference_frame, guide_box=config.guide_box)
    raise ValueError(f"Unknown trigger_strategy: {config.trigger_strategy}")


def main() -> None:
    config_path = Path(sys.argv[1]) if len(sys.argv) > 1 else Path("config.json")
    config = AppConfig.load(config_path)

    reference_frame = cv2.imread(str(config.reference_frame_path))
    if reference_frame is None:
        raise RuntimeError(
            f"Could not load reference frame from {config.reference_frame_path}. "
            "Run calibrate.py first to capture an empty-platform reference image."
        )

    catalogue = Catalogue(config.catalogue_path)
    strategy = build_strategy(config, reference_frame)
    session = IntakeSession(
        catalogue=catalogue,
        strategy=strategy,
        reference_frame=reference_frame,
        markers=config.markers,
        captures_dir=config.captures_dir,
    )

    camera = CameraSource(device_index=config.device_index)
    camera.open()

    app = create_app(session, camera)
    uvicorn.run(app, host="0.0.0.0", port=8000)


if __name__ == "__main__":
    main()