-- migration-purchase-safety.sql
-- 협력업체/일용직 관리 및 안전교육 테이블 마이그레이션
-- MariaDB용, 재실행 안전 (IF NOT EXISTS / ADD COLUMN IF NOT EXISTS)
-- 생성일: 2026-03-12

-- ============================================================
-- 1. sso_users 테이블에 협력업체 관련 컬럼 추가
-- ============================================================
ALTER TABLE sso_users
  ADD COLUMN IF NOT EXISTS partner_company_id INT DEFAULT NULL
    COMMENT '협력업체 소속 시 partner_companies.id, 내부직원은 NULL';

ALTER TABLE sso_users
  ADD COLUMN IF NOT EXISTS account_expires_at DATETIME DEFAULT NULL
    COMMENT '협력업체 계정 만료일, 내부직원은 NULL';

-- 외래키는 IF NOT EXISTS 구문이 없으므로 프로시저로 안전하게 추가
DELIMITER //
DROP PROCEDURE IF EXISTS __add_fk_sso_users_partner_company//
CREATE PROCEDURE __add_fk_sso_users_partner_company()
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM information_schema.TABLE_CONSTRAINTS
    WHERE CONSTRAINT_SCHEMA = DATABASE()
      AND TABLE_NAME = 'sso_users'
      AND CONSTRAINT_NAME = 'fk_sso_users_partner_company'
  ) THEN
    ALTER TABLE sso_users
      ADD CONSTRAINT fk_sso_users_partner_company
      FOREIGN KEY (partner_company_id) REFERENCES partner_companies(id)
      ON DELETE SET NULL;
  END IF;
END//
DELIMITER ;
CALL __add_fk_sso_users_partner_company();
DROP PROCEDURE IF EXISTS __add_fk_sso_users_partner_company;

-- ============================================================
-- 2. day_labor_requests (일용직 작업 요청)
-- ============================================================
CREATE TABLE IF NOT EXISTS day_labor_requests (
  id                INT AUTO_INCREMENT PRIMARY KEY,
  requester_id      INT NOT NULL            COMMENT 'sso_users.user_id',
  department_id     INT,
  work_date         DATE NOT NULL,
  worker_count      INT NOT NULL DEFAULT 1,
  work_description  TEXT,
  workplace_name    VARCHAR(100),
  status            ENUM('pending','approved','rejected','completed') DEFAULT 'pending',
  approved_by       INT,
  approved_at       DATETIME,
  safety_reported   BOOLEAN DEFAULT FALSE,
  notes             TEXT,
  created_at        TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at        TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  INDEX idx_day_labor_work_date (work_date),
  INDEX idx_day_labor_status (status)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- ============================================================
-- 3. partner_schedules (협력업체 작업 일정)
-- ============================================================
CREATE TABLE IF NOT EXISTS partner_schedules (
  id                INT AUTO_INCREMENT PRIMARY KEY,
  company_id        INT NOT NULL,
  work_date         DATE NOT NULL,
  work_description  TEXT,
  workplace_name    VARCHAR(100),
  expected_workers  INT DEFAULT 1,
  registered_by     INT NOT NULL,
  status            ENUM('scheduled','in_progress','completed','cancelled') DEFAULT 'scheduled',
  notes             TEXT,
  created_at        TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at        TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  INDEX idx_partner_sched_work_date (work_date),
  INDEX idx_partner_sched_company_date (company_id, work_date),
  CONSTRAINT fk_partner_schedules_company
    FOREIGN KEY (company_id) REFERENCES partner_companies(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- ============================================================
-- 4. partner_work_checkins (협력업체 출퇴근 체크)
-- ============================================================
CREATE TABLE IF NOT EXISTS partner_work_checkins (
  id                  INT AUTO_INCREMENT PRIMARY KEY,
  schedule_id         INT NOT NULL,
  company_id          INT NOT NULL,
  checked_by          INT NOT NULL,
  check_in_time       DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  check_out_time      DATETIME,
  worker_names        TEXT,
  actual_worker_count INT,
  notes               TEXT,
  created_at          TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  INDEX idx_checkin_schedule_time (schedule_id, check_in_time),
  CONSTRAINT fk_checkins_schedule
    FOREIGN KEY (schedule_id) REFERENCES partner_schedules(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- ============================================================
-- 5. partner_work_reports (협력업체 일일 작업 보고)
-- ============================================================
CREATE TABLE IF NOT EXISTS partner_work_reports (
  id              INT AUTO_INCREMENT PRIMARY KEY,
  schedule_id     INT NOT NULL,
  checkin_id      INT NOT NULL,
  company_id      INT NOT NULL,
  report_date     DATE NOT NULL,
  reporter_id     INT NOT NULL,
  actual_workers  INT,
  work_content    TEXT,
  progress_rate   TINYINT CHECK (progress_rate BETWEEN 0 AND 100),
  issues          TEXT,
  next_plan       TEXT,
  confirmed_by    INT,
  confirmed_at    DATETIME,
  created_at      TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at      TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  INDEX idx_daily_report_date (report_date),
  INDEX idx_daily_report_schedule (schedule_id),
  UNIQUE INDEX uq_schedule_report_date (schedule_id, report_date),
  CONSTRAINT fk_daily_reports_schedule
    FOREIGN KEY (schedule_id) REFERENCES partner_schedules(id),
  CONSTRAINT fk_daily_reports_checkin
    FOREIGN KEY (checkin_id) REFERENCES partner_work_checkins(id),
  CONSTRAINT fk_daily_reports_company
    FOREIGN KEY (company_id) REFERENCES partner_companies(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- ============================================================
-- 6. safety_education_reports (안전교육 보고)
-- ============================================================
CREATE TABLE IF NOT EXISTS safety_education_reports (
  id              INT AUTO_INCREMENT PRIMARY KEY,
  target_type     ENUM('day_labor','partner_schedule','manual') NOT NULL,
  target_id       INT,
  education_date  DATE NOT NULL,
  educator        VARCHAR(50),
  attendees       JSON,
  status          ENUM('planned','completed','cancelled') DEFAULT 'planned',
  notes           TEXT,
  registered_by   INT NOT NULL,
  created_at      TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at      TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  INDEX idx_safety_edu_date (education_date),
  INDEX idx_safety_edu_target (target_type, target_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;