import schedule
import time
import sqlite3
from datetime import datetime, timedelta
import redis

# 连接到Redis
r = redis.Redis(host='192.168.2.32', port=6379, db=0)


def write_to_db():
    # 连接到SQLite数据库
    conn = sqlite3.connect('message_stats.db')
    c = conn.cursor()

    # 创建表（如果不存在）
    c.execute('''CREATE TABLE IF NOT EXISTS speech_counts (
                    group_id TEXT,
                    wx_id TEXT,
                    date TEXT,
                    count INTEGER,
                    PRIMARY KEY (group_id, wx_id, date)
                )''')

    # 获取当前日期的前一天
    yesterday = (datetime.now() - timedelta(days=1)).strftime('%Y-%m-%d')

    # 遍历Redis中所有与昨天日期相关的key，并写入数据库
    for key in r.keys(f"*:*:{yesterday}:count"):
        parts = key.decode('utf-8').split(':')
        group_id, wx_id, _date = parts[0], parts[1], parts[2]  # _date应该是yesterday，但这里为了完整性还是保留
        count = int(r.hget(key, 'count')) if isinstance(r.hget(key, 'count'), bytes) else 0  # 处理可能的None或空值情况

        # 插入或更新数据库记录
        c.execute("INSERT OR REPLACE INTO speech_counts (group_id, wx_id, date, count) VALUES (?, ?, ?, ?)",
                  (group_id, wx_id, yesterday, count))

    conn.commit()
    conn.close()


def generate_and_send_ranking(groupId, allContacts: dict):
    # 连接到SQLite数据库（假设数据库文件名为database.db）
    conn = sqlite3.connect('message_stats.db')
    cursor = conn.cursor()

    yesterday = (datetime.now() - timedelta(days=1)).strftime('%Y-%m-%d')
    # 编写SQL查询来获取发言数量前20的用户
    query = """
      SELECT wx_id,  count AS speech_count
        FROM speech_counts
        WHERE DATE(date) = DATE('now', '-1 day')
        AND group_id = ?
        GROUP BY wx_id
        ORDER BY count DESC
        LIMIT 20
      """

    # 执行查询并获取结果
    cursor.execute(query, (groupId,))
    results = cursor.fetchall()

    # 格式化输出字符串
    ranking_str = yesterday + "发言数量前20的用户排名:\n"
    for rank, (username, speech_count) in enumerate(results, start=1):
            ranking_str += f"{rank}. {allContacts[username]}: {speech_count} 次发言\n"
    # 关闭数据库连接
    conn.close()
    print(ranking_str)
    # 这里我们没有实际“发送”排名，只是返回字符串
    # 如果需要发送，可以在此添加发送逻辑
    return ranking_str

if __name__ == '__main__':
    write_to_db()