-- Additive, re-runnable MySQL/InnoDB migration. Default feature gates remain OFF in configuration.
-- Back up before an authorized release. This file does not enable the feature or grant new privileges.
CREATE TABLE IF NOT EXISTS `zyt_followup_audio_upload` (
  `id` varchar(64) NOT NULL,
  `diagnosis_id` bigint unsigned NOT NULL,
  `actor_id` bigint unsigned NOT NULL,
  `file_name` varchar(255) NOT NULL,
  `total_bytes` bigint unsigned NOT NULL,
  `received_bytes` bigint unsigned NOT NULL DEFAULT 0,
  `sha256` varchar(64) NOT NULL DEFAULT '',
  `duration_seconds` decimal(12,3) NOT NULL DEFAULT 0,
  `status` varchar(32) NOT NULL,
  `extension` varchar(10) NOT NULL,
  `created_at` bigint unsigned NOT NULL,
  `expires_at` bigint unsigned NOT NULL,
  PRIMARY KEY (`id`), KEY `idx_expiry` (`expires_at`,`status`), KEY `idx_diagnosis` (`diagnosis_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE IF NOT EXISTS `zyt_followup_audio_task` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `diagnosis_id` bigint unsigned NOT NULL,
  `patient_id` bigint unsigned NOT NULL,
  `actor_id` bigint unsigned NOT NULL,
  `upload_id` varchar(64) NOT NULL,
  `file_name` varchar(255) NOT NULL,
  `sha256` varchar(64) NOT NULL,
  `duration_seconds` decimal(12,3) NOT NULL,
  `recorded_at` varchar(19) NOT NULL,
  `model_key` varchar(16) NOT NULL,
  `status` varchar(32) NOT NULL,
  `stage` varchar(32) NOT NULL,
  `version` int unsigned NOT NULL DEFAULT 1,
  `attempts` int unsigned NOT NULL DEFAULT 0,
  `lease_token` varchar(64) NOT NULL DEFAULT '',
  `lease_until` bigint unsigned NOT NULL DEFAULT 0,
  `upstream_started_at` bigint unsigned NOT NULL DEFAULT 0,
  `upstream_run_id` varchar(191) NOT NULL DEFAULT '',
  `upstream_file_id` varchar(191) NOT NULL DEFAULT '',
  `upstream_ids_json` text NOT NULL,
  `error_code` varchar(96) NOT NULL DEFAULT '',
  `error_message` varchar(255) NOT NULL DEFAULT '',
  `extraction_cipher` longtext NOT NULL,
  `review_cipher` longtext NOT NULL,
  `applied_cipher` longtext NOT NULL,
  `created_at` bigint unsigned NOT NULL,
  `updated_at` bigint unsigned NOT NULL,
  `expires_at` bigint unsigned NOT NULL,
  `applied_at` bigint unsigned NOT NULL DEFAULT 0,
  `purged_at` bigint unsigned NOT NULL DEFAULT 0,
  PRIMARY KEY (`id`), UNIQUE KEY `uk_upload` (`upload_id`),
  UNIQUE KEY `uk_content_profile` (`diagnosis_id`,`sha256`,`model_key`),
  KEY `idx_queue` (`status`,`lease_until`,`expires_at`),
  KEY `idx_diagnosis` (`diagnosis_id`,`id`), KEY `idx_expiry` (`expires_at`,`purged_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE IF NOT EXISTS `zyt_followup_audio_audit` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `task_id` bigint unsigned NOT NULL,
  `item_id` varchar(64) NOT NULL,
  `diagnosis_id` bigint unsigned NOT NULL,
  `actor_id` bigint unsigned NOT NULL,
  `kind` varchar(24) NOT NULL,
  `table_name` varchar(64) NOT NULL,
  `record_id` bigint unsigned NOT NULL,
  `action` varchar(16) NOT NULL,
  `source_cipher` longtext NOT NULL,
  `before_cipher` longtext NOT NULL,
  `after_cipher` longtext NOT NULL,
  `created_at` bigint unsigned NOT NULL,
  PRIMARY KEY (`id`), UNIQUE KEY `uk_task_item` (`task_id`,`item_id`),
  KEY `idx_record` (`table_name`,`record_id`), KEY `idx_diagnosis` (`diagnosis_id`,`created_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE IF NOT EXISTS `zyt_followup_audio_mutex` (`id` int NOT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB;
INSERT IGNORE INTO `zyt_followup_audio_mutex` (`id`) VALUES (1),(2);

-- MySQL versions without ADD COLUMN IF NOT EXISTS use information_schema guards.
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_tcm_blood_record' AND COLUMN_NAME='record_time_estimated')=0,
 'ALTER TABLE `zyt_tcm_blood_record` ADD COLUMN `record_time_estimated` tinyint NOT NULL DEFAULT 0', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_tcm_blood_record' AND COLUMN_NAME='record_time_period')=0,
 'ALTER TABLE `zyt_tcm_blood_record` ADD COLUMN `record_time_period` varchar(20) NOT NULL DEFAULT \'\'', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_tcm_blood_record' AND COLUMN_NAME='record_time_text')=0,
 'ALTER TABLE `zyt_tcm_blood_record` ADD COLUMN `record_time_text` varchar(255) NOT NULL DEFAULT \'\'', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_tcm_blood_record' AND COLUMN_NAME='followup_audio_task_id')=0,
 'ALTER TABLE `zyt_tcm_blood_record` ADD COLUMN `followup_audio_task_id` bigint unsigned NULL', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;

-- Content idempotency must not be bypassed by a different upload id/name/recorded time.
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_followup_audio_task' AND INDEX_NAME='uk_content_profile')=0,
 'ALTER TABLE `zyt_followup_audio_task` ADD UNIQUE KEY `uk_content_profile` (`diagnosis_id`,`sha256`,`model_key`)', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;

-- Additive encrypted per-stage checkpoint; re-runnable on supported MySQL versions.
SET @fa_sql = IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='zyt_followup_audio_task' AND COLUMN_NAME='pipeline_cipher')=0,
 'ALTER TABLE `zyt_followup_audio_task` ADD COLUMN `pipeline_cipher` longtext NULL', 'SELECT 1');
PREPARE fa_stmt FROM @fa_sql;
EXECUTE fa_stmt;
DEALLOCATE PREPARE fa_stmt;