SET NAMES utf8mb4;

SET @current_schema = DATABASE();

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_metric'
      AND COLUMN_NAME = 'stat_timezone'
  ),
  'SELECT 1',
  'ALTER TABLE `country_dashboard_period_metric` ADD COLUMN `stat_timezone` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT ''Asia/Riyadh'' COMMENT ''统计时区'' AFTER `period_key`'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_user_metric'
      AND COLUMN_NAME = 'stat_timezone'
  ),
  'SELECT 1',
  'ALTER TABLE `country_dashboard_period_user_metric` ADD COLUMN `stat_timezone` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT ''Asia/Riyadh'' COMMENT ''统计时区'' AFTER `period_key`'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_metric'
      AND INDEX_NAME = 'uk_period_origin_country'
  ),
  'ALTER TABLE `country_dashboard_period_metric` DROP INDEX `uk_period_origin_country`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_metric`
  ADD UNIQUE KEY `uk_period_origin_country` (`period_type`, `period_key`, `stat_timezone`, `sys_origin`, `country_code`);

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_metric'
      AND INDEX_NAME = 'idx_origin_period'
  ),
  'ALTER TABLE `country_dashboard_period_metric` DROP INDEX `idx_origin_period`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_metric`
  ADD KEY `idx_origin_period` (`sys_origin`, `stat_timezone`, `period_type`, `period_key`);

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_metric'
      AND INDEX_NAME = 'idx_period_date'
  ),
  'ALTER TABLE `country_dashboard_period_metric` DROP INDEX `idx_period_date`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_metric`
  ADD KEY `idx_period_date` (`stat_timezone`, `period_type`, `period_start_date`, `period_end_date`);

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_user_metric'
      AND INDEX_NAME = 'uk_period_user_metric'
  ),
  'ALTER TABLE `country_dashboard_period_user_metric` DROP INDEX `uk_period_user_metric`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_user_metric`
  ADD UNIQUE KEY `uk_period_user_metric` (`period_type`, `period_key`, `stat_timezone`, `sys_origin`, `country_code`, `user_id`, `metric_type`);

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_user_metric'
      AND INDEX_NAME = 'idx_period_metric_country'
  ),
  'ALTER TABLE `country_dashboard_period_user_metric` DROP INDEX `idx_period_metric_country`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_user_metric`
  ADD KEY `idx_period_metric_country` (`period_type`, `period_key`, `stat_timezone`, `sys_origin`, `metric_type`, `country_code`);

SET @ddl = IF(
  EXISTS (
    SELECT 1
    FROM INFORMATION_SCHEMA.STATISTICS
    WHERE TABLE_SCHEMA = @current_schema
      AND TABLE_NAME = 'country_dashboard_period_user_metric'
      AND INDEX_NAME = 'idx_origin_user_metric'
  ),
  'ALTER TABLE `country_dashboard_period_user_metric` DROP INDEX `idx_origin_user_metric`',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

ALTER TABLE `country_dashboard_period_user_metric`
  ADD KEY `idx_origin_user_metric` (`sys_origin`, `stat_timezone`, `user_id`, `metric_type`);