-- 创建评价表
-- 执行日期：2026-01-23
-- 功能：家长端服务评价功能

-- 1. 创建评价表
CREATE TABLE IF NOT EXISTS `review` (
  `id` BIGINT NOT NULL AUTO_INCREMENT COMMENT '评价ID',
  `order_id` BIGINT NOT NULL COMMENT '订单ID',
  `user_id` BIGINT NOT NULL COMMENT '用户ID（家长）',
  `teacher_id` BIGINT NOT NULL COMMENT '陪伴员ID',
  `student_id` BIGINT DEFAULT NULL COMMENT '学生ID',
  
  -- 评分字段
  `service_score` INT NOT NULL DEFAULT 5 COMMENT '服务态度评分（1-5星）',
  `quality_score` INT NOT NULL DEFAULT 5 COMMENT '教学质量评分（1-5星）',
  `punctuality_score` INT NOT NULL DEFAULT 5 COMMENT '准时性评分（1-5星）',
  `overall_score` DECIMAL(3,1) NOT NULL DEFAULT 5.0 COMMENT '综合评分（自动计算平均分）',
  
  -- 评价内容
  `content` TEXT COMMENT '评价内容（最多200字）',
  `images` TEXT COMMENT '评价图片（JSON数组，最多9张）',
  
  -- 评价状态
  `is_anonymous` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否匿名（0-否，1-是）',
  `status` TINYINT NOT NULL DEFAULT 1 COMMENT '评价状态（1-正常，0-已删除）',
  
  -- 回复信息
  `reply_content` TEXT COMMENT '陪伴员回复内容',
  `reply_time` DATETIME DEFAULT NULL COMMENT '回复时间',
  
  -- 租户和时间
  `tenant_id` BIGINT DEFAULT 1 COMMENT '租户ID',
  `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  `deleted` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '删除标记（0-未删除，1-已删除）',
  
  PRIMARY KEY (`id`),
  KEY `idx_order_id` (`order_id`),
  KEY `idx_user_id` (`user_id`),
  KEY `idx_teacher_id` (`teacher_id`),
  KEY `idx_student_id` (`student_id`),
  KEY `idx_tenant_id` (`tenant_id`),
  KEY `idx_create_time` (`create_time`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='服务评价表';

-- 2. 为订单表添加评价状态字段（如果不存在）
ALTER TABLE `order` 
ADD COLUMN IF NOT EXISTS `reviewed` TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否已评价（0-未评价，1-已评价）' AFTER `status`;

-- 3. 插入测试数据
INSERT INTO `review` (
  `order_id`, `user_id`, `teacher_id`, `student_id`,
  `service_score`, `quality_score`, `punctuality_score`, `overall_score`,
  `content`, `images`, `is_anonymous`, `tenant_id`
) VALUES
(102, 1, 1, 1, 5, 5, 5, 5.0, '陪伴员非常专业，孩子很喜欢，会继续选择这位老师！', '[]', 0, 1),
(103, 1, 2, 1, 4, 4, 5, 4.3, '服务态度很好，准时到达，孩子学习有进步。', '[]', 0, 1),
(104, 2, 1, 2, 5, 4, 5, 4.7, '老师很有耐心，讲解清晰，孩子听得很认真。', '[]', 1, 1);

-- 4. 更新订单的评价状态
UPDATE `order` SET `reviewed` = 1 WHERE `id` IN (102, 103, 104);

-- 5. 查询验证
SELECT 
  r.id,
  r.order_id,
  o.order_no,
  r.user_id,
  r.teacher_id,
  r.overall_score,
  r.content,
  r.is_anonymous,
  r.create_time
FROM review r
LEFT JOIN `order` o ON r.order_id = o.id
ORDER BY r.create_time DESC
LIMIT 10;

-- 6. 统计陪伴员评价数据
SELECT 
  teacher_id,
  COUNT(*) as review_count,
  AVG(overall_score) as avg_score,
  AVG(service_score) as avg_service_score,
  AVG(quality_score) as avg_quality_score,
  AVG(punctuality_score) as avg_punctuality_score
FROM review
WHERE deleted = 0 AND status = 1
GROUP BY teacher_id;