"""
简化版双摄像头联动抓拍系统
全景检测到人 → 球机逐个定位抓拍

使用方法:
    python simple_main.py --panorama-ip 192.168.1.100 --ptz-ip 192.168.1.101
"""

import os
os.environ['OPENCV_FFMPEG_CAPTURE_OPTIONS'] = 'threads;1'

import sys
import argparse
import logging
import time
import signal

# 添加项目路径
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

from config import (
    PANORAMA_CAMERA, PTZ_CAMERA, SDK_PATH,
    DETECTION_CONFIG, PTZ_CONFIG, LOG_CONFIG
)
from dahua_sdk import DahuaSDK
from panorama_camera import PanoramaCamera, ObjectDetector
from ptz_camera import PTZCamera
from simple_coordinator import SimpleCoordinator

# 配置日志
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)


class SimpleSystem:
    """简化版双摄像头联动系统"""
    
    def __init__(self, config_override: dict = None):
        self.config = config_override or {}
        self.sdk = None
        self.panorama_camera = None
        self.ptz_camera = None
        self.detector = None
        self.coordinator = None
        self.running = False
    
    def initialize(self) -> bool:
        """初始化系统"""
        logger.info("=" * 50)
        logger.info("初始化简化版联动系统")
        logger.info("=" * 50)
        
        # 1. 初始化检测器（必须先于SDK加载）
        try:
            self.detector = ObjectDetector(
                model_path=self.config.get('model_path', DETECTION_CONFIG.get('model_path')),
                use_gpu=self.config.get('use_gpu', True),
                model_size=self.config.get('model_size', 'n'),
                model_type=self.config.get('model_type', 'auto')
            )
            logger.info("✓ 检测器初始化成功")
        except Exception as e:
            logger.error(f"✗ 检测器初始化失败: {e}")
            return False
        
        # 2. 初始化SDK
        sdk_path = os.path.join(
            self.config.get('sdk_path', SDK_PATH['lib_path']),
            self.config.get('netsdk', SDK_PATH['netsdk'])
        )
        try:
            self.sdk = DahuaSDK(sdk_path)
            if not self.sdk.init():
                logger.error("✗ SDK初始化失败")
                return False
            logger.info("✓ SDK初始化成功")
        except Exception as e:
            logger.error(f"✗ SDK加载失败: {e}")
            return False
        
        # 3. 初始化摄像头
        panorama_config = self.config.get('panorama_camera', PANORAMA_CAMERA)
        self.panorama_camera = PanoramaCamera(self.sdk, panorama_config)
        
        ptz_config = self.config.get('ptz_camera', PTZ_CAMERA)
        self.ptz_camera = PTZCamera(self.sdk, ptz_config)
        
        # 4. 初始化联动控制器
        self.coordinator = SimpleCoordinator(
            self.panorama_camera,
            self.ptz_camera,
            self.detector
        )
        
        logger.info("=" * 50)
        logger.info("系统初始化完成")
        logger.info("=" * 50)
        
        return True
    
    def start(self) -> bool:
        """启动系统"""
        if self.running:
            return True
        
        if not self.coordinator.start():
            logger.error("启动联动系统失败")
            return False
        
        self.running = True
        logger.info("系统已启动")
        return True
    
    def stop(self):
        """停止系统"""
        if not self.running:
            return
        
        self.running = False
        self.coordinator.stop()
        
        if self.sdk:
            self.sdk.cleanup()
        
        logger.info("系统已停止")
    
    def get_stats(self):
        """获取统计信息"""
        if self.coordinator:
            return self.coordinator.get_stats()
        return {}


def main():
    """主函数"""
    parser = argparse.ArgumentParser(
        description='简化版双摄像头联动抓拍系统',
        formatter_class=argparse.RawDescriptionHelpFormatter,
        epilog="""
示例:
  python simple_main.py --panorama-ip 192.168.1.100 --ptz-ip 192.168.1.101
  python simple_main.py --panorama-ip 192.168.1.100 --ptz-ip 192.168.1.101 --model-size m
        """
    )
    
    parser.add_argument('--panorama-ip', type=str, required=True,
                        help='全景摄像头IP')
    parser.add_argument('--ptz-ip', type=str, required=True,
                        help='球机IP')
    parser.add_argument('--username', type=str, default='admin',
                        help='用户名 (默认: admin)')
    parser.add_argument('--password', type=str, default='admin123',
                        help='密码 (默认: admin123)')
    parser.add_argument('--model', type=str,
                        help='检测模型路径')
    parser.add_argument('--model-size', type=str, default='n',
                        choices=['n', 's', 'm', 'l', 'x'],
                        help='YOLO11模型尺寸 (默认: n)')
    parser.add_argument('--no-gpu', action='store_true',
                        help='不使用GPU')
    parser.add_argument('--detection-interval', type=float, default=1.0,
                        help='检测间隔秒数 (默认: 1.0)')
    parser.add_argument('--ptz-wait', type=float, default=0.5,
                        help='PTZ移动后等待时间 (默认: 0.5)')
    parser.add_argument('--min-area', type=int, default=2000,
                        help='最小人体面积像素 (默认: 2000)')
    parser.add_argument('--confidence', type=float, default=0.7,
                        help='置信度阈值 (默认: 0.7)')
    parser.add_argument('--zoom', type=int, default=8,
                        help='默认变倍 (默认: 8)')
    
    args = parser.parse_args()
    
    # 构建配置
    config = {
        'panorama_camera': {
            **PANORAMA_CAMERA,
            'ip': args.panorama_ip,
            'username': args.username,
            'password': args.password,
        },
        'ptz_camera': {
            **PTZ_CAMERA,
            'ip': args.ptz_ip,
            'username': args.username,
            'password': args.password,
        },
        'model_path': args.model,
        'model_size': args.model_size,
        'use_gpu': not args.no_gpu,
    }
    
    # 创建系统
    system = SimpleSystem(config)
    
    # 设置信号处理
    def signal_handler(sig, frame):
        logger.info("\n接收到停止信号，正在退出...")
        system.stop()
        sys.exit(0)
    
    signal.signal(signal.SIGINT, signal_handler)
    signal.signal(signal.SIGTERM, signal_handler)
    
    try:
        # 初始化
        if not system.initialize():
            logger.error("系统初始化失败!")
            return 1
        
        # 启动
        if not system.start():
            logger.error("系统启动失败!")
            return 1
        
        # 打印运行状态
        print("\n" + "=" * 50)
        print("系统运行中，按 Ctrl+C 停止")
        print("=" * 50)
        print(f"全景摄像头: {args.panorama_ip}")
        print(f"球机: {args.ptz_ip}")
        print(f"检测间隔: {args.detection_interval}秒")
        print(f"置信度阈值: {args.confidence}")
        print(f"最小人体面积: {args.min_area}像素²")
        print(f"默认变倍: {args.zoom}")
        print("=" * 50 + "\n")
        
        # 运行循环
        last_stats_time = time.time()
        while system.running:
            time.sleep(1)
            
            # 每30秒打印统计
            if time.time() - last_stats_time >= 30:
                stats = system.get_stats()
                logger.info(f"[统计] 帧数={stats.get('frames_processed', 0)} "
                           f"检测人数={stats.get('persons_detected', 0)} "
                           f"抓拍次数={stats.get('captures_taken', 0)}")
                last_stats_time = time.time()
    
    except KeyboardInterrupt:
        pass
    
    finally:
        system.stop()
    
    return 0


if __name__ == '__main__':
    sys.exit(main() or 0)