-- AIFlow 增值服务改造 - 数据库迁移脚本
-- 日期: 2026-05-27
-- 说明: 增加自定义服务支持、修改 value_added_services 表类型枚举

USE aiflow;

-- 1. 创建 custom_service_requests 表（先创建新表，不依赖后续的ALTER）
CREATE TABLE IF NOT EXISTS custom_service_requests (
    id VARCHAR(36) PRIMARY KEY,
    user_id VARCHAR(36) NOT NULL,
    service_id VARCHAR(36) NOT NULL,
    request_type VARCHAR(20) NOT NULL COMMENT 'data_custom / private_project / platform_proxy',
    title VARCHAR(200) NOT NULL,
    description TEXT DEFAULT NULL,
    requirements JSON DEFAULT NULL COMMENT '需求详情JSON',
    status ENUM('pending', 'processing', 'completed', 'rejected') NOT NULL DEFAULT 'pending',
    assigned_agent_id VARCHAR(36) DEFAULT NULL,
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX idx_csr_user (user_id),
    INDEX idx_csr_service (service_id),
    INDEX idx_csr_type (request_type),
    INDEX idx_csr_status (status),
    FOREIGN KEY (user_id) REFERENCES users(id),
    FOREIGN KEY (service_id) REFERENCES value_added_services(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 2. 尝试修改 value_added_services 的 type 列（忽略错误 - 可能已修改过）
-- 使用存储过程实现幂等：检查当前枚举值，如果已包含新值则跳过
SET @dbname = DATABASE();
SET @tablename = 'value_added_services';
SET @columnname = 'type';

-- 检查当前type列的枚举定义是否已经包含新值
SET @needs_alter = (
    SELECT IF(
        (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
         WHERE TABLE_SCHEMA = @dbname
           AND TABLE_NAME = @tablename
           AND COLUMN_NAME = @columnname
           AND COLUMN_TYPE LIKE '%app_custom%') > 0,
        0, 1
    )
);

SET @alter_sql = IF(@needs_alter = 1,
    'ALTER TABLE value_added_services MODIFY COLUMN type ENUM(''app_custom'', ''platform_proxy'', ''data_custom'', ''private_project'') NOT NULL',
    'SELECT ''type column already migrated'' AS msg'
);
PREPARE stmt FROM @alter_sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 3. 新增 features 字段（JSON格式）
SET @sql_features = (
    SELECT IF(
        (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
         WHERE TABLE_SCHEMA = @dbname AND TABLE_NAME = @tablename AND COLUMN_NAME = 'features') > 0,
        'SELECT ''Column features already exists'' AS msg',
        'ALTER TABLE value_added_services ADD COLUMN features JSON DEFAULT NULL AFTER description'
    )
);
PREPARE stmt FROM @sql_features;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 4. 新增 assigned_agent_id 字段
SET @sql_agent = (
    SELECT IF(
        (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
         WHERE TABLE_SCHEMA = @dbname AND TABLE_NAME = @tablename AND COLUMN_NAME = 'assigned_agent_id') > 0,
        'SELECT ''Column assigned_agent_id already exists'' AS msg',
        'ALTER TABLE value_added_services ADD COLUMN assigned_agent_id VARCHAR(36) DEFAULT NULL AFTER status'
    )
);
PREPARE stmt FROM @sql_agent;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

-- 5. 初始化四大类增值服务数据（幂等）
INSERT IGNORE INTO value_added_services (id, name, description, features, price, type, status, assigned_agent_id) VALUES
('svc-app-custom', '应用定制服务', '根据您的业务需求，定制开发专属的AI应用。选择Skills/Agent/MCP类型，自动创建对应对话窗口，后台为您配置专属工作Agent。',
 '["Skills定制", "Agent定制", "MCP定制", "专属工作Agent", "一对一服务"]', 2999.00, 'app_custom', 'active', NULL),
('svc-platform-proxy', '平台代理申请', '申请成为AIFlow平台的子平台代理，获取独立的运营空间和管理权限，拓展您的业务版图。',
 '["独立子平台", "品牌定制", "用户管理", "运营数据分析", "官方技术支持"]', 0.00, 'platform_proxy', 'active', NULL),
('svc-data-custom', '数据定制服务', '提供专业的数据采集、清洗、标注和分析服务，为您的AI模型提供高质量训练数据。',
 '["数据采集", "数据清洗", "数据标注", "数据分析", "定制报告"]', 0.00, 'data_custom', 'active', NULL),
('svc-private-project', '私有化项目服务', '为企业提供AIFlow平台整体私有化部署方案，包括环境搭建、数据迁移、安全配置等全方位服务。',
 '["私有化部署", "数据迁移", "安全配置", "定制开发", "7x24运维支持"]', 0.00, 'private_project', 'active', NULL);