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import pickle

from evaluation.blended_mvs import DatasetBlendedMVS
from evaluation.eth3d import DatasetETH3D
from evaluation.imc import DatasetIMC2023, DatasetIMC2024
from evaluation.utils import (
    Dataset,
    create_result_table,
    filter_smallest_scenes_per_category,
    parse_args,
    process_scenes,
)

import pycolmap


def main() -> None:
    args = parse_args()

    datasets: dict[str, type[Dataset]] = {
        "eth3d": DatasetETH3D,
        "blended-mvs": DatasetBlendedMVS,
        "imc2023": DatasetIMC2023,
        "imc2024": DatasetIMC2024,
    }

    metrics = {}
    for dataset_name in args.datasets:
        if dataset_name not in datasets:
            pycolmap.logging.error(f"Unknown dataset: {dataset_name}")
            return

        pycolmap.logging.info(f"Evaluating dataset: {dataset_name}")

        dataset = datasets[dataset_name](
            data_path=args.data_path,
            categories=args.categories,
            scenes=args.scenes,
            run_path=args.run_path,
            run_name=args.run_name,
        )

        scene_infos = dataset.list_scenes()

        if args.fast:
            scene_infos = filter_smallest_scenes_per_category(
                scene_infos, args.fast_num_scenes
            )

        if not scene_infos:
            pycolmap.logging.warning("No scenes found")
            return

        metrics[dataset_name] = process_scenes(
            args=args,
            scene_infos=scene_infos,
            prepare_scene=dataset.prepare_scene,
            position_accuracy_gt=dataset.position_accuracy_gt,
        )

    pycolmap.logging.info("Results:\n" + create_result_table(metrics))

    report_path = args.run_path / args.run_name / (args.report_name + ".pkl")
    pycolmap.logging.info(f"Saving report to: {report_path}")
    with open(report_path, "wb") as report_file:
        pickle.dump(metrics, report_file)


if __name__ == "__main__":
    main()
