#!/usr/bin/env python3
"""
YouTube API Connection Test Script for Jamie Clinic
Tests OAuth authentication and verifies Jamie channel access.
"""

import os
import sys
from pathlib import Path

from dotenv import load_dotenv
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from googleapiclient.discovery import build
import pickle

# Load environment variables
load_dotenv(Path(__file__).parent / '.env')

# YouTube API scopes needed for updating video metadata
SCOPES = ['https://www.googleapis.com/auth/youtube.force-ssl']

# Token file path
TOKEN_FILE = Path(__file__).parent / 'jamie_youtube_token.pickle'
CLIENT_SECRETS_FILE = Path(os.getenv('GOOGLE_CLIENT_SECRETS_FILE',
                                      '/Users/ourdigital/.config/gcloud/keys/jamie-youtube-manager.json'))

# Jamie Clinic YouTube Channel (Default)
JAMIE_CHANNEL_ID = "UCtjR6NnlaX1dPPER7wHbGpw"
JAMIE_CHANNEL_NAME = "제이미 성형외과"


def get_authenticated_service():
    """Authenticate and return YouTube API service."""
    creds = None

    if TOKEN_FILE.exists():
        with open(TOKEN_FILE, 'rb') as token:
            creds = pickle.load(token)

    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            print("Refreshing expired credentials...")
            creds.refresh(Request())
        else:
            if not CLIENT_SECRETS_FILE.exists():
                print(f"\n[ERROR] OAuth client secret file not found!")
                print(f"Expected location: {CLIENT_SECRETS_FILE}")
                return None

            print("Starting OAuth authentication flow...")
            flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
            creds = flow.run_local_server(port=8080)

        with open(TOKEN_FILE, 'wb') as token:
            pickle.dump(creds, token)
        print(f"Credentials saved to: {TOKEN_FILE}")

    return build('youtube', 'v3', credentials=creds)


def test_jamie_channel(youtube):
    """Test connection to Jamie's YouTube channel."""
    print("\n" + "="*60)
    print(f"Testing Jamie Channel Access: {JAMIE_CHANNEL_NAME}")
    print("="*60)

    try:
        response = youtube.channels().list(
            part="snippet,statistics,brandingSettings",
            id=JAMIE_CHANNEL_ID
        ).execute()

        if response.get('items'):
            channel = response['items'][0]
            stats = channel.get('statistics', {})
            print(f"\n✅ Jamie Channel Connected!")
            print(f"\n📺 Channel Info:")
            print(f"   Name: {channel['snippet']['title']}")
            print(f"   ID: {JAMIE_CHANNEL_ID}")
            print(f"   Subscribers: {stats.get('subscriberCount', 'Hidden')}")
            print(f"   Total Views: {stats.get('viewCount', '0')}")
            print(f"   Total Videos: {stats.get('videoCount', '0')}")
            return True
        else:
            print(f"\n❌ Jamie channel not found")
            return False

    except Exception as e:
        print(f"\n❌ Connection failed: {e}")
        return False


def test_video_access(youtube, video_id):
    """Test if we can access a Jamie video."""
    print(f"\n" + "="*60)
    print(f"Testing Video Access: {video_id}")
    print("="*60)

    try:
        response = youtube.videos().list(
            part="snippet,status,statistics",
            id=video_id
        ).execute()

        if response.get('items'):
            video = response['items'][0]
            snippet = video['snippet']
            stats = video.get('statistics', {})

            # Verify it's a Jamie video
            is_jamie = snippet['channelId'] == JAMIE_CHANNEL_ID

            print(f"\n✅ Video accessible!")
            print(f"   Title: {snippet['title']}")
            print(f"   Channel: {snippet['channelTitle']}")
            print(f"   Status: {video['status']['privacyStatus']}")
            print(f"   Views: {stats.get('viewCount', '0')}")
            print(f"   Jamie Channel: {'✅ Yes' if is_jamie else '❌ No'}")
            return True
        else:
            print(f"\n⚠️  Video not found or not accessible")
            return False

    except Exception as e:
        print(f"\n❌ Video access failed: {e}")
        return False


def main():
    print("="*60)
    print(f"Jamie Clinic ({JAMIE_CHANNEL_NAME}) - API Connection Test")
    print("="*60)

    youtube = get_authenticated_service()
    if not youtube:
        sys.exit(1)

    # Test Jamie channel access
    if not test_jamie_channel(youtube):
        sys.exit(1)

    # Test access to Jamie's intro video
    test_video_id = "P-ovr-aaD1E"
    test_video_access(youtube, test_video_id)

    print("\n" + "="*60)
    print("API Connection Test Complete!")
    print("="*60)
    print("\nAvailable commands:")
    print("  python jamie_channel_status.py     # Full channel status")
    print("  python jamie_video_info.py <URL>   # Get video info")
    print("  python jamie_youtube_batch_update.py --dry-run")


if __name__ == "__main__":
    main()