-- 签到插件数据库表结构
-- MySQL 5.7+ 兼容

-- 创建数据库（可选）
-- CREATE DATABASE IF NOT EXISTS wechat_bot DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-- USE wechat_bot;

-- 用户签到表
CREATE TABLE IF NOT EXISTS `user_signin` (
    `id` INT AUTO_INCREMENT PRIMARY KEY COMMENT '自增ID',
    `wxid` VARCHAR(50) NOT NULL COMMENT '用户微信ID',
    `nickname` VARCHAR(100) DEFAULT '' COMMENT '用户昵称',
    `city` VARCHAR(50) DEFAULT '' COMMENT '用户城市',
    `points` INT DEFAULT 0 COMMENT '用户积分',
    `last_signin_date` DATE DEFAULT NULL COMMENT '最后签到日期',
    `signin_streak` INT DEFAULT 0 COMMENT '连续签到天数',
    `total_signin_days` INT DEFAULT 0 COMMENT '总签到天数',
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
    `updated_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
    UNIQUE KEY `uk_wxid` (`wxid`),
    INDEX `idx_points` (`points` DESC),
    INDEX `idx_signin_date` (`last_signin_date`),
    INDEX `idx_city` (`city`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户签到表';

-- 签到记录表（可选，用于记录详细的签到历史）
CREATE TABLE IF NOT EXISTS `signin_records` (
    `id` INT AUTO_INCREMENT PRIMARY KEY COMMENT '自增ID',
    `wxid` VARCHAR(50) NOT NULL COMMENT '用户微信ID',
    `nickname` VARCHAR(100) DEFAULT '' COMMENT '用户昵称',
    `signin_date` DATE NOT NULL COMMENT '签到日期',
    `points_earned` INT NOT NULL COMMENT '获得积分',
    `signin_streak` INT DEFAULT 1 COMMENT '当时的连续签到天数',
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '签到时间',
    UNIQUE KEY `uk_wxid_date` (`wxid`, `signin_date`),
    INDEX `idx_signin_date` (`signin_date`),
    INDEX `idx_wxid` (`wxid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='签到记录表';

-- 积分变动记录表（记录所有积分增减）
CREATE TABLE IF NOT EXISTS `points_history` (
    `id` INT AUTO_INCREMENT PRIMARY KEY COMMENT '自增ID',
    `wxid` VARCHAR(50) NOT NULL COMMENT '用户微信ID',
    `nickname` VARCHAR(100) DEFAULT '' COMMENT '用户昵称',
    `change_type` VARCHAR(20) NOT NULL COMMENT '变动类型: signin(签到), bonus(奖励), consume(消费), admin(管理员调整), other(其他)',
    `points_change` INT NOT NULL COMMENT '积分变动数量（正数增加，负数减少）',
    `points_before` INT NOT NULL COMMENT '变动前积分',
    `points_after` INT NOT NULL COMMENT '变动后积分',
    `description` VARCHAR(200) DEFAULT '' COMMENT '变动说明',
    `related_id` VARCHAR(50) DEFAULT '' COMMENT '关联ID（如订单号、签到记录ID等）',
    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '变动时间',
    INDEX `idx_wxid` (`wxid`),
    INDEX `idx_change_type` (`change_type`),
    INDEX `idx_created_at` (`created_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='积分变动记录表';

-- 积分统计视图（方便查询用户积分汇总）
CREATE OR REPLACE VIEW `v_points_summary` AS
SELECT
    wxid,
    nickname,
    points as current_points,
    total_signin_days,
    signin_streak,
    (SELECT COALESCE(SUM(points_change), 0) FROM points_history ph WHERE ph.wxid = us.wxid AND points_change > 0) as total_earned,
    (SELECT COALESCE(SUM(ABS(points_change)), 0) FROM points_history ph WHERE ph.wxid = us.wxid AND points_change < 0) as total_spent
FROM user_signin us;