"""
Video Learning Agent Demo

This script demonstrates how to use the VideoLearningAgent to watch
and learn from short video platforms like Douyin.

Usage:
    python examples/video_learning_demo.py --device-id <device_id> --count 10
"""

import os
import sys
from pathlib import Path

# Add parent directory to path
sys.path.insert(0, str(Path(__file__).parent.parent))

from phone_agent.model.client import ModelConfig
from phone_agent.video_learning import VideoLearningAgent


def main():
    """Main demo function."""

    # Load configuration from environment
    base_url = os.getenv("MODEL_BASE_URL", "http://localhost:8000/v1")
    api_key = os.getenv("MODEL_API_KEY", "your-api-key")
    model_name = os.getenv("MODEL_NAME", "autoglm-phone-9b")

    # Configuration
    device_id = os.getenv("DEVICE_ID", "emulator-5554")
    target_count = int(os.getenv("TARGET_COUNT", "10"))
    watch_duration = float(os.getenv("WATCH_DURATION", "3.0"))
    category = os.getenv("CATEGORY", None)  # e.g., "美食", "旅行", "搞笑"

    print("=" * 60)
    print("Video Learning Agent Demo")
    print("=" * 60)
    print(f"Device: {device_id}")
    print(f"Platform: Douyin")
    print(f"Target videos: {target_count}")
    print(f"Watch duration: {watch_duration}s per video")
    if category:
        print(f"Category filter: {category}")
    print("=" * 60)

    # Create agent
    model_config = ModelConfig(
        base_url=base_url,
        model_name=model_name,
        api_key=api_key,
        lang="cn",
    )

    agent = VideoLearningAgent(
        model_config=model_config,
        platform="douyin",
        output_dir="./video_learning_data",
    )

    # Setup callbacks
    def on_video_watched(record):
        print(f"\n[Video {record.sequence_id}] Watched!")
        if record.description:
            print(f"  Description: {record.description}")
        if record.likes:
            print(f"  Likes: {record.likes}")
        print(f"  Screenshot: {record.screenshot_path}")

    def on_progress_update(current, total):
        percent = (current / total * 100) if total > 0 else 0
        print(f"\nProgress: {current}/{total} ({percent:.1f}%)")

    def on_session_complete(session):
        print("\n" + "=" * 60)
        print("Session Complete!")
        print("=" * 60)
        print(f"Total videos watched: {session.total_videos}")
        print(f"Total duration: {session.total_duration:.1f}s")
        print(f"Data saved to: ./video_learning_data/{session.session_id}.json")

    agent.on_video_watched = on_video_watched
    agent.on_progress_update = on_progress_update
    agent.on_session_complete = on_session_complete

    # Start session
    session_id = agent.start_session(
        device_id=device_id,
        target_count=target_count,
        category=category,
        watch_duration=watch_duration,
    )

    print(f"\nSession started: {session_id}")
    print("Starting video watching task...\n")

    # Construct the task
    if category:
        task = f"""
请帮我学习抖音上的"{category}"类视频。具体任务如下：

1. 打开抖音应用
2. 搜索"{category}"
3. 开始观看视频，每个视频观看约{watch_duration}秒
4. 记录每个视频的描述、点赞数、评论数等信息
5. 滑动到下一个视频
6. 重复步骤3-5，直到观看完{target_count}个视频

请按照以下格式记录每个视频：
- 视频序号
- 描述文案（屏幕上的文字）
- 点赞数（如果有显示）
- 评论数（如果有显示）
- 截图

每个视频观看时，请等待{watch_duration}秒后再滑动到下一个。
        """
    else:
        task = f"""
请帮我学习抖音上的推荐视频。具体任务如下：

1. 打开抖音应用
2. 在推荐页开始观看视频，每个视频观看约{watch_duration}秒
3. 记录每个视频的描述、点赞数、评论数等信息
4. 向上滑动到下一个视频
5. 重复步骤3-4，直到观看完{target_count}个视频

请按照以下格式记录每个视频：
- 视频序号
- 描述文案（屏幕上的文字）
- 点赞数（如果有显示）
- 评论数（如果有显示）
- 截图

每个视频观看时，请等待{watch_duration}秒后再滑动到下一个。
        """

    # Run the task
    success = agent.run_learning_task(task)

    if success:
        print("\n✓ Learning task completed successfully!")

        # Export data
        json_file = agent.export_data("json")
        print(f"✓ Data exported to: {json_file}")

        csv_file = agent.export_data("csv")
        print(f"✓ Data exported to: {csv_file}")

    else:
        print("\n✗ Learning task failed")

    print("\nSession progress:")
    progress = agent.get_session_progress()
    for key, value in progress.items():
        print(f"  {key}: {value}")


if __name__ == "__main__":
    main()