-- AI自进化引擎 数据库表
-- Qihu-AIFlow v1.0.0

-- 用户进化配置表
CREATE TABLE IF NOT EXISTS `user_evolution_config` (
    `id` VARCHAR(36) NOT NULL PRIMARY KEY,
    `user_id` VARCHAR(36) NOT NULL UNIQUE,
    `skill_dir_path` VARCHAR(500),
    `trajectory_dir_path` VARCHAR(500),
    `watcher_status` VARCHAR(20) DEFAULT 'stopped',
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    `updated_at` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX `idx_uec_user_id` (`user_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 用户技能表
CREATE TABLE IF NOT EXISTS `evolution_skills` (
    `id` VARCHAR(36) NOT NULL PRIMARY KEY,
    `user_id` VARCHAR(36) NOT NULL,
    `skill_name` VARCHAR(200) NOT NULL,
    `description` TEXT,
    `tags` JSON,
    `category` VARCHAR(100),
    `state` VARCHAR(20) DEFAULT 'baby',
    `use_count` INT DEFAULT 0,
    `version` INT DEFAULT 1,
    `skill_md_path` VARCHAR(500),
    `git_commit_sha` VARCHAR(40),
    `last_used_at` DATETIME,
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    `updated_at` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX `idx_es_user_id` (`user_id`),
    INDEX `idx_es_skill_name` (`skill_name`),
    INDEX `idx_es_state` (`state`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 技能进化事件表
CREATE TABLE IF NOT EXISTS `evolution_events` (
    `id` VARCHAR(36) NOT NULL PRIMARY KEY,
    `user_id` VARCHAR(36) NOT NULL,
    `skill_name` VARCHAR(200) NOT NULL,
    `event_type` VARCHAR(50) NOT NULL,
    `description` TEXT,
    `version_before` INT,
    `version_after` INT,
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    INDEX `idx_ee_user_id` (`user_id`),
    INDEX `idx_ee_event_type` (`event_type`),
    INDEX `idx_ee_created_at` (`created_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 进化轨迹表
CREATE TABLE IF NOT EXISTS `evolution_trajectories` (
    `id` VARCHAR(36) NOT NULL PRIMARY KEY,
    `user_id` VARCHAR(36) NOT NULL,
    `conversation_id` VARCHAR(36),
    `file_path` VARCHAR(500),
    `status` VARCHAR(20) DEFAULT 'discovered',
    `atom_count` INT DEFAULT 0,
    `token_used` INT DEFAULT 0,
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    `processed_at` DATETIME,
    INDEX `idx_et_user_id` (`user_id`),
    INDEX `idx_et_status` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 技能-轨迹关联表 (PRD 7.3.1)
CREATE TABLE IF NOT EXISTS `skill_trajectory_links` (
    `id` VARCHAR(36) NOT NULL PRIMARY KEY,
    `skill_name` VARCHAR(200) NOT NULL,
    `user_id` VARCHAR(36) NOT NULL,
    `trajectory_id` VARCHAR(36),
    `atom_id` VARCHAR(36),
    `weightscore` INT DEFAULT 0,
    `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
    INDEX `idx_stl_user_skill` (`user_id`, `skill_name`),
    INDEX `idx_stl_trajectory_id` (`trajectory_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;