SET NAMES utf8mb4;

-- 公告与系统通知群发。发出去的每一条都记一行，因为"给谁发过什么"是事后
-- 唯一能对账的东西；撤回也只撤这一批里还没读的那些。
CREATE TABLE IF NOT EXISTS notification_broadcasts (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  title VARCHAR(100) NOT NULL,
  content VARCHAR(1000) NOT NULL,
  audience VARCHAR(20) NOT NULL COMMENT 'all/users/vip/city/sitters/owners',
  audience_ref VARCHAR(500) NOT NULL DEFAULT '' COMMENT '城市编码或用户编号列表',
  with_push TINYINT(1) NOT NULL DEFAULT 0,
  recipient_count INT UNSIGNED NOT NULL DEFAULT 0,
  push_count INT UNSIGNED NOT NULL DEFAULT 0,
  status VARCHAR(20) NOT NULL DEFAULT 'SENT' COMMENT 'SENT/REVOKED',
  revoked_count INT UNSIGNED NOT NULL DEFAULT 0,
  created_by BIGINT UNSIGNED NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  revoked_at DATETIME(3) NULL,
  PRIMARY KEY (id),
  KEY idx_broadcast_created (created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 订单退款流水。代喂那张 pet_feed_refunds 记的是任务口径，这张记的是订单
-- 口径：会员、保证金、代喂都在这里，一笔订单可以退很多次。
CREATE TABLE IF NOT EXISTS order_refunds (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  order_id BIGINT UNSIGNED NOT NULL,
  refund_no VARCHAR(60) NOT NULL,
  user_id BIGINT UNSIGNED NOT NULL,
  amount_cent INT UNSIGNED NOT NULL,
  channel VARCHAR(20) NOT NULL DEFAULT 'gateway' COMMENT 'gateway 原路退回 / offline 线下已退',
  reason VARCHAR(500) NOT NULL DEFAULT '',
  handled_by BIGINT UNSIGNED NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_order_refund_no (refund_no),
  KEY idx_order_refunds_order (order_id, id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

INSERT INTO system_configs(config_key,config_value,value_type,description) VALUES
  ('notification.broadcast_max_recipients','20000','integer','单次公告的最大接收人数，超过要分批发'),
  ('notification.broadcast_push_enabled','true','boolean','公告是否允许同时走离线推送')
ON DUPLICATE KEY UPDATE description=VALUES(description);