-- ==========================================
-- 物业报修管理模块表名重命名脚本
-- 版本：V1.0.0
-- 功能：将现有pm_开头的表名重命名为hq_pm_开头
-- 作者：Cursor AI 辅助
-- 时间：2025-01-23
-- 目的：符合项目表名规范（后勤管理模块使用hq_前缀）
-- ==========================================

-- 设置字符集
SET NAMES utf8mb4;

-- 检查表是否存在并进行重命名
-- 注意：在重命名之前请确保没有其他进程在使用这些表

-- 1. 重命名报修工单表
-- 先检查表是否存在
SELECT 'Checking table existence...' AS step;

-- 重命名主要业务表
-- 1. pm_repair_order -> hq_pm_repair_order
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_order') > 0,
    'RENAME TABLE pm_repair_order TO hq_pm_repair_order',
    'SELECT "Table pm_repair_order does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 2. pm_repair_attachment -> hq_pm_repair_attachment
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_attachment') > 0,
    'RENAME TABLE pm_repair_attachment TO hq_pm_repair_attachment',
    'SELECT "Table pm_repair_attachment does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 3. pm_repair_progress -> hq_pm_repair_progress
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_progress') > 0,
    'RENAME TABLE pm_repair_progress TO hq_pm_repair_progress',
    'SELECT "Table pm_repair_progress does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 4. pm_service_evaluation -> hq_pm_service_evaluation
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_service_evaluation') > 0,
    'RENAME TABLE pm_service_evaluation TO hq_pm_service_evaluation',
    'SELECT "Table pm_service_evaluation does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 5. pm_repair_category -> hq_pm_repair_category
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_category') > 0,
    'RENAME TABLE pm_repair_category TO hq_pm_repair_category',
    'SELECT "Table pm_repair_category does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 6. pm_system_config -> hq_pm_system_config
SET @sql = IF(
    (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
     WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_system_config') > 0,
    'RENAME TABLE pm_system_config TO hq_pm_system_config',
    'SELECT "Table pm_system_config does not exist" AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 验证重命名结果
SELECT 'Verifying table rename results...' AS step;

-- 检查新表名是否存在
SELECT 
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_repair_order') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_repair_order_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_repair_attachment') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_repair_attachment_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_repair_progress') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_repair_progress_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_service_evaluation') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_service_evaluation_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_repair_category') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_repair_category_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'hq_pm_system_config') 
        THEN 'EXISTS' 
        ELSE 'NOT EXISTS' 
    END AS hq_pm_system_config_status;

-- 检查旧表名是否还存在（应该不存在）
SELECT 
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_order') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_repair_order_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_attachment') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_repair_attachment_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_progress') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_repair_progress_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_service_evaluation') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_service_evaluation_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_repair_category') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_repair_category_status,
    
    CASE 
        WHEN EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pm_system_config') 
        THEN 'STILL EXISTS (ERROR)' 
        ELSE 'REMOVED (OK)' 
    END AS old_pm_system_config_status;

SELECT 'Table rename operation completed!' AS result;