CREATE TABLE `novel_generation_plans` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NULL,
  `user_id` BIGINT NOT NULL,
  `novel_scale` VARCHAR(30) NOT NULL DEFAULT 'medium',
  `target_words` INT NULL,
  `target_chapters` INT NULL,
  `genre` VARCHAR(100) NULL,
  `style_code` VARCHAR(100) NULL,
  `brief_json` JSON NULL,
  `ip_bible_json` JSON NULL,
  `volume_plan_json` JSON NULL,
  `pipeline_config_json` JSON NULL,
  `quality_threshold_json` JSON NULL,
  `automation_level` VARCHAR(20) NOT NULL DEFAULT 'L1',
  `status` VARCHAR(50) NOT NULL DEFAULT 'draft',
  `current_chapter_no` INT NOT NULL DEFAULT 0,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  KEY `npg_project_status_idx` (`project_id`, `status`),
  KEY `npg_source_idx` (`novel_source_id`),
  KEY `npg_user_status_idx` (`user_id`, `status`),
  KEY `npg_scale_level_idx` (`novel_scale`, `automation_level`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `novel_chapter_versions` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NULL,
  `novel_chapter_id` BIGINT NULL,
  `chapter_no` INT NOT NULL,
  `version_no` INT NOT NULL,
  `version_type` VARCHAR(50) NOT NULL,
  `title` VARCHAR(255) NULL,
  `content_text` LONGTEXT NULL,
  `content_json` JSON NULL,
  `source_agent` VARCHAR(100) NULL,
  `provider_code` VARCHAR(100) NULL,
  `model_name` VARCHAR(100) NULL,
  `quality_score` DECIMAL(5, 2) NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'draft',
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE KEY `ncv_source_chapter_version_type_key` (`novel_source_id`, `chapter_no`, `version_no`, `version_type`),
  KEY `ncv_project_chapter_idx` (`project_id`, `chapter_no`),
  KEY `ncv_chapter_idx` (`novel_chapter_id`),
  KEY `ncv_agent_idx` (`source_agent`),
  KEY `ncv_status_idx` (`status`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `novel_context_memories` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NULL,
  `chapter_no` INT NULL,
  `memory_type` VARCHAR(80) NOT NULL,
  `memory_text` LONGTEXT NULL,
  `memory_json` JSON NULL,
  `importance_level` INT NOT NULL DEFAULT 0,
  `status` VARCHAR(50) NOT NULL DEFAULT 'active',
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  KEY `ncm_project_type_idx` (`project_id`, `memory_type`),
  KEY `ncm_source_chapter_idx` (`novel_source_id`, `chapter_no`),
  KEY `ncm_type_status_idx` (`memory_type`, `status`),
  KEY `ncm_importance_idx` (`importance_level`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `novel_quality_reports` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NULL,
  `novel_chapter_id` BIGINT NULL,
  `chapter_no` INT NULL,
  `report_type` VARCHAR(50) NOT NULL,
  `total_score` DECIMAL(5, 2) NULL,
  `score_json` JSON NULL,
  `problems_json` JSON NULL,
  `suggestions_json` JSON NULL,
  `pass_status` BOOLEAN NOT NULL DEFAULT false,
  `rewrite_required` BOOLEAN NOT NULL DEFAULT false,
  `source_agent` VARCHAR(100) NULL,
  `provider_code` VARCHAR(100) NULL,
  `model_name` VARCHAR(100) NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  KEY `nqr_project_chapter_idx` (`project_id`, `chapter_no`),
  KEY `nqr_source_chapter_idx` (`novel_source_id`, `chapter_no`),
  KEY `nqr_chapter_idx` (`novel_chapter_id`),
  KEY `nqr_pass_idx` (`pass_status`),
  KEY `nqr_agent_idx` (`source_agent`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `novel_version_snapshots` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NOT NULL,
  `version_no` INT NOT NULL,
  `title` VARCHAR(255) NULL,
  `snapshot_scope` VARCHAR(50) NOT NULL,
  `chapter_start` INT NULL,
  `chapter_end` INT NULL,
  `source_hash` VARCHAR(128) NULL,
  `snapshot_text` LONGTEXT NULL,
  `snapshot_json` JSON NULL,
  `created_for` VARCHAR(50) NULL,
  `created_by_user_id` BIGINT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE KEY `nvs_source_version_key` (`novel_source_id`, `version_no`),
  KEY `nvs_project_idx` (`project_id`),
  KEY `nvs_for_idx` (`created_for`),
  KEY `nvs_range_idx` (`chapter_start`, `chapter_end`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `novel_derivative_jobs` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NOT NULL,
  `novel_source_id` BIGINT NOT NULL,
  `snapshot_id` BIGINT NULL,
  `user_id` BIGINT NOT NULL,
  `derivative_type` VARCHAR(50) NOT NULL,
  `target_project_id` BIGINT NULL,
  `target_ref_id` BIGINT NULL,
  `chapter_start` INT NULL,
  `chapter_end` INT NULL,
  `config_json` JSON NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'pending',
  `progress_json` JSON NULL,
  `error_message` TEXT NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  KEY `ndj_project_type_idx` (`project_id`, `derivative_type`),
  KEY `ndj_source_status_idx` (`novel_source_id`, `status`),
  KEY `ndj_snapshot_idx` (`snapshot_id`),
  KEY `ndj_user_status_idx` (`user_id`, `status`),
  KEY `ndj_target_project_idx` (`target_project_id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `agent_prompts` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `agent_name` VARCHAR(100) NOT NULL,
  `version` INT NOT NULL DEFAULT 1,
  `provider_type` VARCHAR(80) NOT NULL DEFAULT 'NovelProvider',
  `default_provider_code` VARCHAR(100) NULL,
  `system_prompt` LONGTEXT NOT NULL,
  `user_prompt_template` LONGTEXT NOT NULL,
  `output_schema_json` JSON NULL,
  `temperature` DECIMAL(4, 2) NULL,
  `max_output_tokens` INT NULL,
  `is_active` BOOLEAN NOT NULL DEFAULT true,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  UNIQUE KEY `ap_name_version_key` (`agent_name`, `version`),
  KEY `ap_name_active_idx` (`agent_name`, `is_active`),
  KEY `ap_provider_type_idx` (`provider_type`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE TABLE `agent_runs` (
  `id` BIGINT NOT NULL AUTO_INCREMENT,
  `project_id` BIGINT NULL,
  `novel_source_id` BIGINT NULL,
  `chapter_no` INT NULL,
  `agent_name` VARCHAR(100) NOT NULL,
  `prompt_version` INT NULL,
  `provider_code` VARCHAR(100) NULL,
  `model_name` VARCHAR(100) NULL,
  `provider_log_id` BIGINT NULL,
  `input_json` JSON NULL,
  `output_json` JSON NULL,
  `output_text` LONGTEXT NULL,
  `status` VARCHAR(50) NOT NULL DEFAULT 'running',
  `quality_score` DECIMAL(5, 2) NULL,
  `error_code` VARCHAR(100) NULL,
  `error_message` TEXT NULL,
  `started_at` DATETIME(3) NULL,
  `finished_at` DATETIME(3) NULL,
  `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (`id`),
  KEY `ar_project_agent_idx` (`project_id`, `agent_name`),
  KEY `ar_source_chapter_idx` (`novel_source_id`, `chapter_no`),
  KEY `ar_status_created_idx` (`status`, `created_at`),
  KEY `ar_provider_log_idx` (`provider_log_id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;