-- =============================================================
-- OA 薪酬管理模块表结构
--
-- 说明：代码里有模型定义（models/backend_oa_compensation.go），
-- 但此前缺少建表脚本，访问薪酬页面会因表不存在返回 500。
-- 本脚本补齐三张表，仅新建、不改动任何既有数据。
--
-- 注意：不显式指定 COLLATE，沿用数据库默认排序规则，避免与既有表
-- （utf8mb4_0900_ai_ci）在 JOIN 比较字符串时报 Illegal mix of collations。
-- =============================================================

SET NAMES utf8mb4;

-- ---------------- 1. 员工薪酬方案 ----------------
CREATE TABLE IF NOT EXISTS `yz_backend_oa_compensation_schemes` (
  `id`                       BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  `tid`                      BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID',
  `employee_id`              BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '员工ID',
  `scheme_name`              VARCHAR(100) NOT NULL DEFAULT '' COMMENT '方案名称',
  `effective_date`           DATE NOT NULL COMMENT '生效日期',
  `expiry_date`              DATE DEFAULT NULL COMMENT '失效日期',
  `base_salary`              DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '基本工资',
  `post_allowance`           DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '岗位津贴',
  `performance_salary`       DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '绩效工资',
  `transport_allowance`      DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '交通补贴',
  `meal_allowance`           DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '餐费补贴',
  `communication_allowance`  DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '通讯补贴',
  `social_insurance_base`    DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '社保基数',
  `housing_fund_base`        DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '公积金基数',
  `social_insurance_rate`    DECIMAL(6,4) NOT NULL DEFAULT 0 COMMENT '社保个人费率',
  `housing_fund_rate`        DECIMAL(6,4) NOT NULL DEFAULT 0 COMMENT '公积金个人费率',
  `status`                   TINYINT NOT NULL DEFAULT 1 COMMENT '1生效 0失效',
  `remark`                   TEXT,
  `is_deleted`               TINYINT NOT NULL DEFAULT 0,
  `create_time`              DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `update_time`              DATETIME DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
  `delete_time`              DATETIME DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_tid` (`tid`),
  KEY `idx_employee` (`employee_id`),
  KEY `idx_status` (`status`),
  KEY `idx_effective` (`effective_date`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='OA-员工薪酬方案';

-- ---------------- 2. 月度薪资单主表 ----------------
CREATE TABLE IF NOT EXISTS `yz_backend_oa_compensation_payrolls` (
  `id`                       BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  `tid`                      BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID',
  `employee_id`              BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '员工ID',
  `scheme_id`                BIGINT UNSIGNED DEFAULT NULL COMMENT '关联薪酬方案ID',
  `payroll_month`            VARCHAR(7) NOT NULL DEFAULT '' COMMENT '薪资月份，格式 YYYY-MM',
  `employee_name`            VARCHAR(50) NOT NULL DEFAULT '' COMMENT '员工姓名快照',
  `department`               VARCHAR(100) NOT NULL DEFAULT '' COMMENT '部门快照',
  `position`                 VARCHAR(100) NOT NULL DEFAULT '' COMMENT '职位快照',
  `base_salary`              DECIMAL(12,2) NOT NULL DEFAULT 0,
  `post_allowance`           DECIMAL(12,2) NOT NULL DEFAULT 0,
  `performance_salary`       DECIMAL(12,2) NOT NULL DEFAULT 0,
  `transport_allowance`      DECIMAL(12,2) NOT NULL DEFAULT 0,
  `meal_allowance`           DECIMAL(12,2) NOT NULL DEFAULT 0,
  `communication_allowance`  DECIMAL(12,2) NOT NULL DEFAULT 0,
  `overtime_pay`             DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '加班费',
  `bonus`                    DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '奖金',
  `other_addition`           DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '其他加项',
  `leave_deduction`          DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '请假扣款',
  `late_deduction`           DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '迟到扣款',
  `other_deduction`          DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '其他扣款',
  `social_insurance`         DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '社保个人部分',
  `housing_fund`             DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '公积金个人部分',
  `personal_income_tax`      DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '个人所得税',
  `gross_salary`             DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '应发合计',
  `total_deduction`          DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '扣款合计',
  `net_salary`               DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '实发工资',
  `status`                   TINYINT NOT NULL DEFAULT 0 COMMENT '0草稿 1已确认 2已发放',
  `confirmed_at`             DATETIME DEFAULT NULL,
  `paid_at`                  DATETIME DEFAULT NULL,
  `remark`                   TEXT,
  `is_deleted`               TINYINT NOT NULL DEFAULT 0,
  `create_time`              DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `update_time`              DATETIME DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
  `delete_time`              DATETIME DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tid_employee_month` (`tid`, `employee_id`, `payroll_month`),
  KEY `idx_tid_month` (`tid`, `payroll_month`),
  KEY `idx_status` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='OA-月度薪资单';

-- ---------------- 3. 薪资单自定义增减项 ----------------
CREATE TABLE IF NOT EXISTS `yz_backend_oa_compensation_payroll_items` (
  `id`          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  `tid`         BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID',
  `payroll_id`  BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT '薪资单ID',
  `item_name`   VARCHAR(100) NOT NULL DEFAULT '' COMMENT '项目名称',
  `item_type`   TINYINT NOT NULL DEFAULT 1 COMMENT '1加项 2扣项',
  `amount`      DECIMAL(12,2) NOT NULL DEFAULT 0 COMMENT '金额',
  `remark`      VARCHAR(500) DEFAULT NULL,
  `sort_order`  INT NOT NULL DEFAULT 0,
  `is_deleted`  TINYINT NOT NULL DEFAULT 0,
  `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `update_time` DATETIME DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
  `delete_time` DATETIME DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_payroll` (`payroll_id`),
  KEY `idx_tid` (`tid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='OA-薪资单增减项';