#!/usr/bin/env python3
"""
清理孤儿ROI配置
- 删除没有对应摄像头配置的ROI记录
- 删除关联的算法绑定记录
"""
import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).parent))

from core.config_sync import get_config_sync_manager

def main():
    print("=== Orphan ROI Cleanup Tool ===\n")

    config_manager = get_config_sync_manager()

    # 1. Get all cameras and ROIs
    cameras = config_manager.get_cameras()
    camera_ids = {c.camera_id for c in cameras}

    rois = config_manager.get_roi_configs(force_refresh=True)
    binds = config_manager.get_bindings()

    print(f"Current Status:")
    print(f"  - Total cameras: {len(cameras)}")
    print(f"  - Total ROIs: {len(rois)}")
    print(f"  - Total bindings: {len(binds)}")

    # 2. Find orphan ROIs
    orphan_rois = [roi for roi in rois if roi.camera_id not in camera_ids]

    if not orphan_rois:
        print("\n[OK] No orphan ROIs found. Database is clean!")
        return

    print(f"\n[PROBLEM] Found {len(orphan_rois)} orphan ROIs:")
    for roi in orphan_rois:
        print(f"  - ROI ID: {roi.roi_id}")
        print(f"    Camera ID: {roi.camera_id} (MISSING)")
        print(f"    ROI Type: {roi.roi_type if hasattr(roi, 'roi_type') else 'N/A'}")
        print()

    # 3. Find orphan bindings
    orphan_roi_ids = {roi.roi_id for roi in orphan_rois}
    orphan_binds = [b for b in binds if b.roi_id in orphan_roi_ids]

    if orphan_binds:
        print(f"Related orphan bindings: {len(orphan_binds)}")
        for bind in orphan_binds:
            print(f"  - Bind ID: {bind.bind_id}")
            print(f"    ROI ID: {bind.roi_id}")
            print(f"    Algorithm: {bind.algo_code}")
            print()

    # 4. Ask for confirmation
    print("=" * 50)
    print("Cleanup Plan:")
    print(f"  1. Delete {len(orphan_rois)} orphan ROI records")
    print(f"  2. Delete {len(orphan_binds)} orphan binding records")
    print("=" * 50)

    response = input("\nProceed with cleanup? (yes/no): ").strip().lower()

    if response != 'yes':
        print("\n[CANCELLED] Cleanup aborted by user")
        return

    # 5. Perform cleanup
    print("\n[EXECUTING] Cleanup in progress...")

    # Initialize database manager
    config_manager._init_database()
    db_manager = config_manager._db_manager

    if not db_manager:
        print("[ERROR] Database manager not available")
        return

    deleted_rois = 0
    deleted_binds = 0

    # Delete orphan bindings first (foreign key constraint)
    for bind in orphan_binds:
        try:
            db_manager.delete_binding(bind.bind_id)
            deleted_binds += 1
            print(f"  [OK] Deleted binding: {bind.bind_id}")
        except Exception as e:
            print(f"  [FAIL] Failed to delete binding {bind.bind_id}: {e}")

    # Delete orphan ROIs
    for roi in orphan_rois:
        try:
            db_manager.delete_roi(roi.roi_id)
            deleted_rois += 1
            print(f"  [OK] Deleted ROI: {roi.roi_id}")
        except Exception as e:
            print(f"  [FAIL] Failed to delete ROI {roi.roi_id}: {e}")

    # 6. Invalidate cache
    config_manager.invalidate_all_cache()

    # 7. Summary
    print("\n" + "=" * 50)
    print("Cleanup Summary")
    print("=" * 50)
    print(f"Deleted ROIs: {deleted_rois}/{len(orphan_rois)}")
    print(f"Deleted bindings: {deleted_binds}/{len(orphan_binds)}")

    if deleted_rois == len(orphan_rois) and deleted_binds == len(orphan_binds):
        print("\n[SUCCESS] All orphan records cleaned up!")
        print("\nNext steps:")
        print("  1. Restart the Edge service to apply changes")
        print("  2. Warnings should disappear from logs")
    else:
        print("\n[WARNING] Some records failed to delete")
        print("  Please check error messages above")

if __name__ == "__main__":
    main()