import os
import subprocess

import cv2
import numpy as np

from tqdm import tqdm

from speakervid_data_talkinghead import SpeakerVidTalkingDataset

S3_ENDPOINT_URL = "https://t3.storage.dev"
AWS_ACCESS_KEY_ID = "tid_cqKPLHboixMUUQxq_ImANLFwrehWmWZHlEaPZXzXNbKxf_fugg"
AWS_SECRET_ACCESS_KEY = "tsec_CXLclBpmOD2blVqdL+smpI52cOxQiXs-pH-INnfU6yfhc1MAajUTpI7xWO+5YAyLwyXjpq"


def _visualize_face_mask(video, face_mask, out_path, fps=25, alpha=0.5) -> None:
    frames = (
        ((video + 1.0) * 127.5)
        .clamp(0, 255)
        .byte()
        .permute(0, 2, 3, 1)
        .cpu()
        .numpy()
    )
    mask = face_mask.squeeze(1).cpu().numpy()
    h, w = frames.shape[1], frames.shape[2]
    if mask.shape[1] != h or mask.shape[2] != w:
        resized = np.zeros((mask.shape[0], h, w), dtype=np.float32)
        for i in range(mask.shape[0]):
            resized[i] = cv2.resize(mask[i], (w, h), interpolation=cv2.INTER_NEAREST)
        mask = resized

    writer = cv2.VideoWriter(
        out_path, cv2.VideoWriter_fourcc(*"mp4v"), fps, (w, h)
    )
    for i, frame in enumerate(frames):
        overlay = np.zeros_like(frame)
        overlay[:, :, 2] = (mask[i] > 0.5).astype(np.uint8) * 255
        blended = cv2.addWeighted(frame, 1.0, overlay, alpha, 0.0)
        writer.write(cv2.cvtColor(blended, cv2.COLOR_RGB2BGR))
    writer.release()
def main() -> None:
    config = {
        "jsonl_path": "/mnt/nfs/datasets/SpeakerVid-5M/metadb_code/talking_top15_syncc.jsonl",
        "existing_tsv_path": "/mnt/nfs/datasets/SpeakerVid-5M/dataprocess_code/output_top15/existing.tsv",
        "audio_feature_model_id": "facebook/wav2vec2-base-960h",
        "filter_enabled": True,
        "sync_d_threshold": 10,  # Sync-D (lower is better)
        "sync_c_threshold": 6.5,  # Sync-C (higher is better)
        "debug_audio": False,
        "use_placeholder_caption": True
    }

    # Optional: override creds via env or config if needed.
    # if os.getenv("AWS_ACCESS_KEY_ID") and os.getenv("AWS_SECRET_ACCESS_KEY"):
    config["aws_access_key_id"] = AWS_ACCESS_KEY_ID # os.getenv("AWS_ACCESS_KEY_ID")
    config["aws_secret_access_key"] =  AWS_SECRET_ACCESS_KEY #os.getenv("AWS_SECRET_ACCESS_KEY")

    dataset = SpeakerVidTalkingDataset(config=config)

    out_dir = os.path.join(os.getcwd(), "visual_tmp")
    os.makedirs(out_dir, exist_ok=True)

    for idx in tqdm(range(min(50, len(dataset)))):
        sample = dataset[idx]
        print("json_name:", sample.get("json_name"))
        print("pixel_values_vid shape:", tuple(sample["pixel_values_vid"].shape))
        print("audio_input_values shape:", tuple(sample["audio_input_values"].shape))
        print("caption:", sample.get("caption_content"))

        # if sample.get("face_mask") is not None:
        #     out_path = os.path.join(out_dir, f"sample_{idx:04d}_mask.mp4")
        #     _visualize_face_mask(sample["pixel_values_vid"], sample["face_mask"], out_path)

        # video = sample["pixel_values_vid"]
        # frames = ((video + 1.0) * 127.5).clamp(0, 255).byte().permute(0, 2, 3, 1).cpu().numpy()
        # out_path = os.path.join(out_dir, f"sample_{idx:04d}.mp4")
        # h, w = frames.shape[1], frames.shape[2]
        # writer = cv2.VideoWriter(out_path, cv2.VideoWriter_fourcc(*"mp4v"), 25, (w, h))
        # for frame in frames:
        #     writer.write(cv2.cvtColor(frame, cv2.COLOR_RGB2BGR))
        # writer.release()

        # audio_clip = sample.get("audio_clip")
        # if audio_clip is None:
        #     continue

        # audio_path = os.path.join(out_dir, f"sample_{idx:04d}.wav")
        # audio_sr = int(sample.get("audio_sample_rate", 16000))
        # audio_clip = np.asarray(audio_clip, dtype=np.float32)

        # try:
        #     import soundfile as sf

        #     sf.write(audio_path, audio_clip, audio_sr)
        # except Exception:
        #     from scipy.io import wavfile

        #     wavfile.write(audio_path, audio_sr, audio_clip)

        # mux_path = os.path.join(out_dir, f"sample_{idx:04d}_av.mp4")
        # subprocess.run(
        #     [
        #         "ffmpeg",
        #         "-y",
        #         "-i",
        #         out_path,
        #         "-i",
        #         audio_path,
        #         "-c:v",
        #         "copy",
        #         "-c:a",
        #         "aac",
        #         "-shortest",
        #         mux_path,
        #     ],
        #     check=True,
        #     stdout=subprocess.DEVNULL,
        #     stderr=subprocess.DEVNULL,
        # )


if __name__ == "__main__":
    main()