#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
更新day_revenue脚本
功能：从CSV文件读取数据，只更新ai_statistics_days表中的day_revenue字段
"""

import os
import sys
import csv
from typing import List, Dict
from decimal import Decimal

sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

from database_config import DatabaseManager


class DayRevenueUpdater:
    """day_revenue字段更新器"""
    
    def __init__(self):
        """初始化"""
        self.db_manager = DatabaseManager()
        self.script_dir = os.path.dirname(os.path.abspath(__file__))
        self.csv_file = os.path.join(self.script_dir, 'ai_statistics_days.csv')
        
        print(f"[初始化] CSV文件: {self.csv_file}")
    
    def read_csv_data(self) -> List[Dict]:
        """读取CSV文件数据
        
        Returns:
            数据列表
        """
        if not os.path.exists(self.csv_file):
            print(f"[X] CSV文件不存在: {self.csv_file}")
            return []
        
        try:
            with open(self.csv_file, 'r', encoding='utf-8-sig') as f:
                reader = csv.DictReader(f)
                data = list(reader)
            
            print(f"[OK] 读取到 {len(data)} 条记录")
            return data
        except Exception as e:
            print(f"[X] 读取CSV失败: {e}")
            import traceback
            traceback.print_exc()
            return []
    
    def update_day_revenue(self, batch_size: int = 50) -> bool:
        """更新day_revenue字段
        
        Args:
            batch_size: 批量更新大小
            
        Returns:
            是否成功
        """
        # 读取CSV数据
        csv_data = self.read_csv_data()
        if not csv_data:
            print("[!] 没有数据需要更新")
            return False
        
        print(f"\n[开始] 更新day_revenue字段...")
        
        # 准备批量更新
        update_sql = """
            UPDATE ai_statistics_days
            SET day_revenue = %s,
                updated_at = NOW()
            WHERE author_id = %s
              AND stat_date = %s
              AND channel = %s
        """
        
        success_count = 0
        failed_count = 0
        not_found_count = 0
        
        # 逐条更新
        for idx, row in enumerate(csv_data, 1):
            try:
                author_id = int(row.get('author_id', 0))
                stat_date = row.get('stat_date', '')
                channel = int(row.get('channel', 1))
                day_revenue = Decimal(row.get('day_revenue', '0.00'))
                
                # 执行更新
                affected_rows = self.db_manager.execute_update(
                    update_sql,
                    (day_revenue, author_id, stat_date, channel)
                )
                
                if affected_rows > 0:
                    success_count += 1
                    print(f"  [{idx}/{len(csv_data)}] ✓ 更新成功: author_id={author_id}, stat_date={stat_date}, day_revenue={day_revenue}")
                else:
                    not_found_count += 1
                    print(f"  [{idx}/{len(csv_data)}] - 未找到记录: author_id={author_id}, stat_date={stat_date}")
                
            except Exception as e:
                failed_count += 1
                print(f"  [{idx}/{len(csv_data)}] ✗ 更新失败: {e}")
                print(f"    数据: {row}")
        
        # 输出统计
        print(f"\n{'='*70}")
        print(f"更新完成")
        print(f"{'='*70}")
        print(f"成功更新: {success_count}/{len(csv_data)}")
        print(f"未找到记录: {not_found_count}/{len(csv_data)}")
        print(f"更新失败: {failed_count}/{len(csv_data)}")
        print(f"{'='*70}")
        
        return failed_count == 0


def main():
    """主函数"""
    print("\n" + "="*70)
    print("day_revenue字段批量更新工具")
    print("="*70)
    print("功能：从 ai_statistics_days.csv 读取数据，只更新数据库中的 day_revenue 字段")
    print("="*70)
    
    try:
        updater = DayRevenueUpdater()
        
        # 确认执行
        confirm = input("\n是否开始更新? (y/n): ").strip().lower()
        if confirm != 'y':
            print("已取消")
            return 0
        
        success = updater.update_day_revenue()
        
        return 0 if success else 1
        
    except Exception as e:
        print(f"\n[X] 程序执行出错: {e}")
        import traceback
        traceback.print_exc()
        return 1


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