-- 邀请码功能完整修复脚本
-- 执行时间：2026-02-03
-- 说明：这个脚本会检查并修复所有邀请码相关的问题

USE fastadmin;

-- ========================================
-- 第 1 步：修复字段类型
-- ========================================

-- 修复 invited_by 字段类型（从 int 改为 varchar(10)）
ALTER TABLE `nf_user` 
MODIFY COLUMN `invited_by` VARCHAR(10) DEFAULT NULL COMMENT '被谁邀请（邀请码）';

-- 修复 invite_reward_total 字段类型（从 int 改为 decimal(10,2)）
ALTER TABLE `nf_user` 
MODIFY COLUMN `invite_reward_total` DECIMAL(10,2) DEFAULT 0.00 COMMENT '邀请奖励总额';

-- 确保 invite_code 字段正确
ALTER TABLE `nf_user` 
MODIFY COLUMN `invite_code` VARCHAR(10) DEFAULT NULL COMMENT '邀请码';

-- 确保 invite_count 字段正确
ALTER TABLE `nf_user` 
MODIFY COLUMN `invite_count` INT(11) DEFAULT 0 COMMENT '邀请人数';

SELECT '✅ 步骤 1：字段类型修复完成' AS '进度';

-- ========================================
-- 第 2 步：检查并添加索引
-- ========================================

-- 检查 invite_code 唯一索引
SET @index_exists = 0;
SELECT COUNT(*) INTO @index_exists 
FROM INFORMATION_SCHEMA.STATISTICS 
WHERE TABLE_SCHEMA = 'fastadmin' 
  AND TABLE_NAME = 'nf_user' 
  AND INDEX_NAME = 'idx_invite_code';

SET @sql = IF(@index_exists = 0, 
    'ALTER TABLE `nf_user` ADD UNIQUE INDEX `idx_invite_code` (`invite_code`)',
    'SELECT ''idx_invite_code 索引已存在'' AS message');
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 检查 invited_by 索引
SET @index_exists = 0;
SELECT COUNT(*) INTO @index_exists 
FROM INFORMATION_SCHEMA.STATISTICS 
WHERE TABLE_SCHEMA = 'fastadmin' 
  AND TABLE_NAME = 'nf_user' 
  AND INDEX_NAME = 'idx_invited_by';

SET @sql = IF(@index_exists = 0, 
    'ALTER TABLE `nf_user` ADD INDEX `idx_invited_by` (`invited_by`)',
    'SELECT ''idx_invited_by 索引已存在'' AS message');
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SELECT '✅ 步骤 2：索引检查完成' AS '进度';

-- ========================================
-- 第 3 步：验证修复结果
-- ========================================

SELECT '========================================' AS '';
SELECT '邀请码字段信息' AS '';
SELECT '========================================' AS '';

SELECT 
    COLUMN_NAME AS '字段名', 
    COLUMN_TYPE AS '类型', 
    IS_NULLABLE AS '可空', 
    COLUMN_DEFAULT AS '默认值', 
    COLUMN_COMMENT AS '注释'
FROM 
    INFORMATION_SCHEMA.COLUMNS 
WHERE 
    TABLE_SCHEMA = 'fastadmin' 
    AND TABLE_NAME = 'nf_user' 
    AND COLUMN_NAME IN ('invite_code', 'invited_by', 'invite_count', 'invite_reward_total')
ORDER BY ORDINAL_POSITION;

SELECT '========================================' AS '';
SELECT '索引信息' AS '';
SELECT '========================================' AS '';

SELECT 
    INDEX_NAME AS '索引名',
    COLUMN_NAME AS '列名',
    NON_UNIQUE AS '非唯一',
    INDEX_TYPE AS '索引类型'
FROM 
    INFORMATION_SCHEMA.STATISTICS 
WHERE 
    TABLE_SCHEMA = 'fastadmin' 
    AND TABLE_NAME = 'nf_user' 
    AND INDEX_NAME IN ('idx_invite_code', 'idx_invited_by')
ORDER BY INDEX_NAME, SEQ_IN_INDEX;

SELECT '========================================' AS '';
SELECT '✅ 邀请码功能修复完成！' AS '状态';
SELECT '请重启 Python 服务以使更改生效' AS '提示';
SELECT '========================================' AS '';