-- 创建OA模块相关表（租户应用）
-- 创建时间: 2025
-- 描述: 创建租户部门表、租户职位表和租户员工表

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- =============================================
-- 1. 创建租户部门表
-- =============================================
CREATE TABLE IF NOT EXISTS yz_tenant_departments (
    id INT PRIMARY KEY AUTO_INCREMENT COMMENT '部门ID',
    tenant_id INT NOT NULL DEFAULT 0 COMMENT '租户ID',
    name VARCHAR(100) NOT NULL COMMENT '部门名称',
    code VARCHAR(50) DEFAULT NULL COMMENT '部门编码',
    parent_id INT DEFAULT 0 COMMENT '父部门ID，0表示顶级部门',
    description TEXT DEFAULT NULL COMMENT '部门描述',
    manager_id INT DEFAULT NULL COMMENT '部门经理ID',
    sort_order INT DEFAULT 0 COMMENT '排序序号',
    status TINYINT DEFAULT 1 COMMENT '状态：1-启用，0-禁用',
    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
    delete_time DATETIME DEFAULT NULL COMMENT '删除时间（软删除）',
    
    -- 索引
    INDEX idx_tenant_id (tenant_id),
    INDEX idx_code (code),
    INDEX idx_parent_id (parent_id),
    INDEX idx_status (status),
    INDEX idx_sort_order (sort_order)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='租户部门表';

-- =============================================
-- 2. 创建租户职位表
-- =============================================
CREATE TABLE IF NOT EXISTS yz_tenant_positions (
    id INT PRIMARY KEY AUTO_INCREMENT COMMENT '职位ID',
    tenant_id INT NOT NULL DEFAULT 0 COMMENT '租户ID',
    name VARCHAR(100) NOT NULL COMMENT '职位名称',
    code VARCHAR(50) DEFAULT NULL COMMENT '职位编码',
    department_id INT DEFAULT NULL COMMENT '所属部门ID',
    level INT DEFAULT 0 COMMENT '职位级别',
    description TEXT DEFAULT NULL COMMENT '职位描述',
    sort_order INT DEFAULT 0 COMMENT '排序序号',
    status TINYINT DEFAULT 1 COMMENT '状态：1-启用，0-禁用',
    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
    delete_time DATETIME DEFAULT NULL COMMENT '删除时间（软删除）',
    
    -- 索引
    INDEX idx_tenant_id (tenant_id),
    INDEX idx_code (code),
    INDEX idx_department_id (department_id),
    INDEX idx_status (status),
    INDEX idx_sort_order (sort_order)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='租户职位表';

-- =============================================
-- 3. 创建租户员工表（如果不存在）
-- =============================================
CREATE TABLE IF NOT EXISTS yz_tenant_employees (
    id INT PRIMARY KEY AUTO_INCREMENT COMMENT '员工ID',
    tenant_id INT NOT NULL DEFAULT 0 COMMENT '租户ID',
    employee_no VARCHAR(50) NOT NULL COMMENT '工号',
    name VARCHAR(50) NOT NULL COMMENT '姓名',
    phone VARCHAR(20) DEFAULT NULL COMMENT '手机号',
    email VARCHAR(100) DEFAULT NULL COMMENT '邮箱',
    department_id INT DEFAULT NULL COMMENT '部门ID',
    position_id INT DEFAULT NULL COMMENT '职位ID',
    status TINYINT DEFAULT 1 COMMENT '状态：1-在职，0-离职',
    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
    delete_time DATETIME DEFAULT NULL COMMENT '删除时间（软删除）',
    
    -- 索引
    INDEX idx_tenant_id (tenant_id),
    INDEX idx_employee_no (employee_no),
    INDEX idx_name (name),
    INDEX idx_department_id (department_id),
    INDEX idx_position_id (position_id),
    INDEX idx_status (status),
    INDEX idx_create_time (create_time)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='租户员工表';

-- =============================================
-- 4. 更新用户表，添加部门和职位字段（如果不存在）
-- =============================================
-- 检查并添加 department_id 字段
SET @dbname = DATABASE();
SET @tablename = 'yz_users';
SET @columnname = 'department_id';
SET @preparedStatement = (SELECT IF(
    (
        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
        WHERE
            (TABLE_SCHEMA = @dbname)
            AND (TABLE_NAME = @tablename)
            AND (COLUMN_NAME = @columnname)
    ) > 0,
    'SELECT "Column department_id already exists in yz_users" AS "";',
    'ALTER TABLE yz_users ADD COLUMN department_id INT DEFAULT NULL COMMENT ''部门ID'' AFTER role;'
));
PREPARE alterIfNotExists FROM @preparedStatement;
EXECUTE alterIfNotExists;
DEALLOCATE PREPARE alterIfNotExists;

-- 检查并添加 position_id 字段
SET @columnname = 'position_id';
SET @preparedStatement = (SELECT IF(
    (
        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
        WHERE
            (TABLE_SCHEMA = @dbname)
            AND (TABLE_NAME = @tablename)
            AND (COLUMN_NAME = @columnname)
    ) > 0,
    'SELECT "Column position_id already exists in yz_users" AS "";',
    'ALTER TABLE yz_users ADD COLUMN position_id INT DEFAULT NULL COMMENT ''职位ID'' AFTER department_id;'
));
PREPARE alterIfNotExists FROM @preparedStatement;
EXECUTE alterIfNotExists;
DEALLOCATE PREPARE alterIfNotExists;

-- =============================================
-- 5. 更新租户员工表，添加部门和职位字段（如果不存在）
-- =============================================
-- 检查并添加 department_id 字段
SET @tablename = 'yz_tenant_employees';
SET @columnname = 'department_id';
SET @preparedStatement = (SELECT IF(
    (
        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
        WHERE
            (TABLE_SCHEMA = @dbname)
            AND (TABLE_NAME = @tablename)
            AND (COLUMN_NAME = @columnname)
    ) > 0,
    'SELECT "Column department_id already exists in yz_employees" AS "";',
    'ALTER TABLE yz_tenant_employees ADD COLUMN department_id INT DEFAULT NULL COMMENT ''部门ID'' AFTER email;'
));
PREPARE alterIfNotExists FROM @preparedStatement;
EXECUTE alterIfNotExists;
DEALLOCATE PREPARE alterIfNotExists;

-- 检查并添加 position_id 字段
SET @columnname = 'position_id';
SET @preparedStatement = (SELECT IF(
    (
        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
        WHERE
            (TABLE_SCHEMA = @dbname)
            AND (TABLE_NAME = @tablename)
            AND (COLUMN_NAME = @columnname)
    ) > 0,
    'SELECT "Column position_id already exists in yz_tenant_employees" AS "";',
    'ALTER TABLE yz_tenant_employees ADD COLUMN position_id INT DEFAULT NULL COMMENT ''职位ID'' AFTER department_id;'
));
PREPARE alterIfNotExists FROM @preparedStatement;
EXECUTE alterIfNotExists;
DEALLOCATE PREPARE alterIfNotExists;

SET FOREIGN_KEY_CHECKS = 1;