-- ----------------------------
-- Zone management: bms_region -> prc_zone -> prc_zone_detail
-- Country master is bms_region (no prc_zone_country)
-- charset: utf8mb4
-- ----------------------------

SET FOREIGN_KEY_CHECKS = 0;
DROP TABLE IF EXISTS prc_zone_detail;
DROP TABLE IF EXISTS prc_zone;
DROP TABLE IF EXISTS prc_zone_country;
DROP TABLE IF EXISTS xtd_zonecountry;
DROP TABLE IF EXISTS xtd_zone_division;
DROP TABLE IF EXISTS xtd_zone_scheme;
SET FOREIGN_KEY_CHECKS = 1;

CREATE TABLE IF NOT EXISTS prc_zone (
  zone_id       BIGINT(20)      NOT NULL AUTO_INCREMENT COMMENT 'zone id',
  region_id     BIGINT(20)      NOT NULL                COMMENT 'bms_region.region_id',
  country_code  VARCHAR(10)     NOT NULL                COMMENT 'ISO2 country code from bms_region',
  zone_code     VARCHAR(50)     NOT NULL                COMMENT 'zone code e.g. 1',
  zone_name     VARCHAR(100)             DEFAULT NULL    COMMENT 'display name e.g. AU(1)',
  zone_sort     INT(11)                  DEFAULT 0      COMMENT 'sort',
  remark        VARCHAR(500)             DEFAULT NULL    COMMENT 'remark',
  create_time   DATETIME                 DEFAULT NULL    COMMENT 'created at',
  update_time   DATETIME                 DEFAULT NULL    COMMENT 'updated at',
  PRIMARY KEY (zone_id),
  UNIQUE KEY uk_zone_region_code (region_id, zone_code),
  INDEX idx_zone_region_id (region_id),
  INDEX idx_zone_country_code (country_code)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='zone under bms_region';

CREATE TABLE IF NOT EXISTS prc_zone_detail (
  detail_id     BIGINT(20)      NOT NULL AUTO_INCREMENT COMMENT 'detail id',
  zone_id       BIGINT(20)      NOT NULL                COMMENT 'zone id',
  postcode      VARCHAR(32)     NOT NULL                COMMENT 'postcode',
  create_time   DATETIME                 DEFAULT NULL    COMMENT 'created at',
  update_time   DATETIME                 DEFAULT NULL    COMMENT 'updated at',
  PRIMARY KEY (detail_id),
  INDEX idx_zd_zone_id (zone_id),
  INDEX idx_zd_postcode (postcode),
  UNIQUE KEY uk_zd_zone_postcode (zone_id, postcode),
  CONSTRAINT fk_zd_zone FOREIGN KEY (zone_id) REFERENCES prc_zone (zone_id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='zone postcode detail';