"""
导出作者发文统计数据到CSV
"""
import pandas as pd
import logging
import argparse
from database_config import DatabaseManager
from datetime import datetime, date

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


def export_author_review_stats(db_manager, target_date, output_file):
    """
    导出作者发文审核统计（包含所有审核状态）
    
    Args:
        db_manager: 数据库管理器实例
        target_date: 目标日期，格式：'2026-01-21'
        output_file: 输出CSV文件路径
        
    Returns:
        导出的记录数
    """
    sql = """
        SELECT 
            a.`author_id`,
            COALESCE(a.`author_name`, auth.`author_name`) as `author_name`,
            COUNT(*) as `today_published_count` 
        FROM `ai_articles` a
        LEFT JOIN `ai_authors` auth ON a.`author_id` = auth.`id`
        WHERE 
            a.`channel` = 4 
            AND a.`status` IN('published', 'published_review', 'pending_review', 'failed')
            AND DATE(a.`updated_at`) = %s
        GROUP BY a.`author_id`, COALESCE(a.`author_name`, auth.`author_name`)
        HAVING COUNT(*) > 0
        ORDER BY `today_published_count` DESC
    """
    
    try:
        logger.info(f"正在查询发文审核统计数据（日期：{target_date}）...")
        result = db_manager.execute_query(sql, (target_date,))
        
        if not result:
            logger.warning("未查询到数据")
            return 0
        
        # 转换为DataFrame
        df = pd.DataFrame(result, columns=['author_id', 'author_name', 'today_published_count'])
        
        # 导出到CSV
        df.to_csv(output_file, index=False, encoding='utf-8-sig')
        logger.info(f"成功导出 {len(df)} 条记录到: {output_file}")
        
        # 显示前5条预览
        logger.info(f"\n数据预览（前5条）:\n{df.head()}")
        
        return len(df)
        
    except Exception as e:
        logger.error(f"导出发文审核统计失败: {e}", exc_info=True)
        raise


def export_author_published_stats(db_manager, target_date, output_file):
    """
    导出作者发文成功统计（仅published状态）
    
    Args:
        db_manager: 数据库管理器实例
        target_date: 目标日期，格式：'2026-01-21'
        output_file: 输出CSV文件路径
        
    Returns:
        导出的记录数
    """
    sql = """
        SELECT 
            a.`author_id`,
            COALESCE(a.`author_name`, auth.`author_name`) as `author_name`,
            COUNT(*) as `today_published_count`,
            COALESCE(auth.`daily_post_max`, 0) as `daily_post_max`,
            (COALESCE(auth.`daily_post_max`, 0) - COUNT(*)) as `gap`
        FROM `ai_articles` a
        LEFT JOIN `ai_authors` auth ON a.`author_id` = auth.`id`
        WHERE 
            a.`channel` = 4 
            AND a.`status` = 'published'
            AND DATE(a.`updated_at`) = %s
        GROUP BY a.`author_id`, COALESCE(a.`author_name`, auth.`author_name`), auth.`daily_post_max`
        HAVING COUNT(*) > 0
        ORDER BY `gap` ASC
    """
    
    try:
        logger.info(f"正在查询发文成功统计数据（日期：{target_date}）...")
        result = db_manager.execute_query(sql, (target_date,))
        
        if not result:
            logger.warning("未查询到数据")
            return 0
        
        # 转换为DataFrame
        df = pd.DataFrame(result, columns=['author_id', 'author_name', 'today_published_count', 'daily_post_max', 'gap'])
        
        # 导出到CSV
        df.to_csv(output_file, index=False, encoding='utf-8-sig')
        logger.info(f"成功导出 {len(df)} 条记录到: {output_file}")
        
        # 显示前5条预览
        logger.info(f"\n数据预览（前5条）:\n{df.head()}")
        
        return len(df)
        
    except Exception as e:
        logger.error(f"导出发文成功统计失败: {e}", exc_info=True)
        raise


def main():
    """主函数"""
    # 解析命令行参数
    parser = argparse.ArgumentParser(description='导出作者发文统计数据到CSV')
    parser.add_argument('--host', default='8.149.233.36', help='数据库主机')
    parser.add_argument('--port', type=int, default=3306, help='数据库端口')
    parser.add_argument('--user', default='ai_articles_read', help='数据库用户名')
    parser.add_argument('--password', default='7aK_H2yvokVumr84lLNDt8fDBp6P', help='数据库密码')
    parser.add_argument('--database', default='ai_article', help='数据库名')
    parser.add_argument('--date', default=date.today().strftime('%Y-%m-%d'), help='目标日期，格式：YYYY-MM-DD')
    parser.add_argument('--output-dir', default='./exports', help='输出目录')
    
    args = parser.parse_args()
    
    # 创建输出目录
    import os
    os.makedirs(args.output_dir, exist_ok=True)
    
    # 创建数据库连接配置
    db_config = {
        'host': args.host,
        'port': args.port,
        'user': args.user,
        'password': args.password,
        'database': args.database,
        'charset': 'utf8mb4'
    }
    
    logger.info("=" * 60)
    logger.info("开始导出作者发文统计数据")
    logger.info(f"数据库配置: {args.user}@{args.host}:{args.port}/{args.database}")
    logger.info(f"目标日期: {args.date}")
    logger.info(f"输出目录: {args.output_dir}")
    logger.info("=" * 60)
    
    # 创建数据库管理器
    db_manager = DatabaseManager(db_config)
    
    try:
        # 生成输出文件名
        review_file = f"{args.output_dir}/author_review_stats_{args.date}.csv"
        published_file = f"{args.output_dir}/author_published_stats_{args.date}.csv"
        
        # 1. 导出发文审核统计
        logger.info("\n[任务1] 导出发文审核统计（所有状态）")
        review_count = export_author_review_stats(db_manager, args.date, review_file)
        
        # 2. 导出发文成功统计
        logger.info("\n[任务2] 导出发文成功统计（published状态）")
        published_count = export_author_published_stats(db_manager, args.date, published_file)
        
        logger.info("\n" + "=" * 60)
        logger.info("✓ 导出完成！")
        logger.info(f"发文审核统计: {review_count} 条 -> {review_file}")
        logger.info(f"发文成功统计: {published_count} 条 -> {published_file}")
        logger.info("=" * 60)
        
    except Exception as e:
        logger.error(f"✗ 导出过程出错: {e}", exc_info=True)
        logger.info("=" * 60)
        logger.info("✗ 导出失败")
        logger.info("=" * 60)


if __name__ == '__main__':
    main()