#!/opt/homebrew/bin/python3.11
"""Insert face detections from traced JSON into DB."""
import json, os, sys
import psycopg2
import psycopg2.extras

DB_URL = os.environ.get("DATABASE_URL", "postgresql://accusys@localhost:5432/momentry")

def insert_faces(file_uuid, traced_json_path, schema):
    conn = psycopg2.connect(DB_URL)
    cur = conn.cursor()

    with open(traced_json_path) as f:
        data = json.load(f)

    frames = data.get("frames", {})
    metadata = data.get("metadata", {})
    fps = metadata.get("fps", 24.0)

    total = 0
    for frame_num_str, frame_data in sorted(frames.items(), key=lambda x: int(x[0])):
        frame_num = int(frame_num_str)
        ts = frame_num / fps
        faces = frame_data.get("faces", [])

        for face in faces:
            x = int(face.get("x", 0))
            y = int(face.get("y", 0))
            w = int(face.get("width", 0))
            h = int(face.get("height", 0))
            confidence = face.get("confidence", 0.0)
            trace_id = face.get("trace_id")
            embedding = face.get("embedding")

            try:
                cur.execute(
                    f"""
                    INSERT INTO {schema}.face_detections
                        (file_uuid, frame_number, timestamp_secs, x, y, width, height, confidence, trace_id, embedding)
                    VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
                    ON CONFLICT DO NOTHING
                    """,
                    (file_uuid, frame_num, ts, x, y, w, h, confidence, trace_id, embedding),
                )
                if cur.rowcount > 0:
                    total += 1
            except Exception as e:
                print(f"[INSERT] Error at frame {frame_num}: {e}")
                conn.rollback()

    conn.commit()
    cur.close()
    conn.close()
    print(f"[INSERT] Inserted {total} face detections into {schema}.face_detections")

if __name__ == "__main__":
    import argparse
    parser = argparse.ArgumentParser(description="Insert face detections")
    parser.add_argument("--file-uuid", required=True)
    parser.add_argument("--face-json", required=True)
    parser.add_argument("--schema", default="public")
    args = parser.parse_args()

    insert_faces(args.file_uuid, args.face_json, args.schema)
