-- 医学信息支持系统数据库初始化脚本
-- Database: medical_info_system

CREATE DATABASE IF NOT EXISTS medical_info_system 
  DEFAULT CHARACTER SET utf8mb4 
  DEFAULT COLLATE utf8mb4_unicode_ci;

USE medical_info_system;

-- 用户表
CREATE TABLE IF NOT EXISTS users (
    id BIGINT PRIMARY KEY AUTO_INCREMENT,
    username VARCHAR(50) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    full_name VARCHAR(100) NOT NULL,
    email VARCHAR(100),
    role VARCHAR(20) NOT NULL COMMENT 'ADMIN, MEDICAL_SPECIALIST, REVIEWER',
    enabled BOOLEAN DEFAULT TRUE,
    created_at DATETIME NOT NULL,
    last_login_at DATETIME,
    INDEX idx_username (username),
    INDEX idx_role (role)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 查询请求表
CREATE TABLE IF NOT EXISTS inquiry_requests (
    id BIGINT PRIMARY KEY AUTO_INCREMENT,
    request_number VARCHAR(50) NOT NULL UNIQUE,
    customer_name VARCHAR(100) NOT NULL,
    customer_email VARCHAR(100),
    customer_title VARCHAR(100),
    inquiry_content TEXT,
    keywords TEXT COMMENT '提取的关键词（JSON格式）',
    status VARCHAR(20) NOT NULL COMMENT 'PENDING, KEYWORD_EXTRACTED, SEARCHING, SEARCH_COMPLETED, UNDER_REVIEW, DOWNLOADING, COMPLETED, REJECTED',
    search_results TEXT COMMENT '检索结果（JSON格式）',
    response_content TEXT COMMENT '回复内容',
    assigned_to VARCHAR(50),
    created_at DATETIME NOT NULL,
    updated_at DATETIME,
    completed_at DATETIME,
    INDEX idx_request_number (request_number),
    INDEX idx_status (status),
    INDEX idx_customer_name (customer_name),
    INDEX idx_assigned_to (assigned_to),
    INDEX idx_created_at (created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 知识库表
CREATE TABLE IF NOT EXISTS knowledge_bases (
    id BIGINT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(100) NOT NULL,
    type VARCHAR(20) NOT NULL COMMENT 'INTERNAL, PUBLIC, EXTENDED',
    description TEXT,
    data_source VARCHAR(255),
    priority INT COMMENT '检索优先级（数字越小优先级越高）',
    enabled BOOLEAN DEFAULT TRUE,
    configuration TEXT COMMENT '配置信息（JSON格式）',
    created_at DATETIME NOT NULL,
    updated_at DATETIME,
    INDEX idx_type (type),
    INDEX idx_enabled (enabled),
    INDEX idx_priority (priority)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 文献表
CREATE TABLE IF NOT EXISTS literatures (
    id BIGINT PRIMARY KEY AUTO_INCREMENT,
    inquiry_request_id BIGINT,
    title VARCHAR(500) NOT NULL,
    authors VARCHAR(500),
    journal VARCHAR(200),
    publication_date VARCHAR(50),
    doi VARCHAR(100),
    pmid VARCHAR(50),
    abstract_text TEXT,
    source_database VARCHAR(50),
    source_url VARCHAR(500),
    file_path VARCHAR(500),
    download_status VARCHAR(20) COMMENT 'PENDING, DOWNLOADING, COMPLETED, FAILED',
    selected BOOLEAN DEFAULT FALSE,
    created_at DATETIME NOT NULL,
    downloaded_at DATETIME,
    INDEX idx_inquiry_request_id (inquiry_request_id),
    INDEX idx_download_status (download_status),
    INDEX idx_selected (selected),
    FOREIGN KEY (inquiry_request_id) REFERENCES inquiry_requests(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 审核日志表
CREATE TABLE IF NOT EXISTS audit_logs (
    id BIGINT PRIMARY KEY AUTO_INCREMENT,
    inquiry_request_id BIGINT,
    user_id BIGINT,
    action VARCHAR(20) NOT NULL COMMENT 'SUBMITTED, APPROVED, REJECTED, REVISION_REQUESTED, COMPLETED',
    comments TEXT,
    created_at DATETIME NOT NULL,
    INDEX idx_inquiry_request_id (inquiry_request_id),
    INDEX idx_user_id (user_id),
    INDEX idx_created_at (created_at),
    FOREIGN KEY (inquiry_request_id) REFERENCES inquiry_requests(id) ON DELETE CASCADE,
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 插入默认管理员用户 (密码: admin123, 实际使用时应该加密)
INSERT INTO users (username, password, full_name, email, role, enabled, created_at) 
VALUES ('admin', '$2a$10$rK8WpQYJzxJ8Y5X5YqFvRO5K7K5K7K5K7K5K7K5K7K5K7K5K7K5K7', 
        '系统管理员', 'admin@ipsen.com', 'ADMIN', TRUE, NOW())
ON DUPLICATE KEY UPDATE username=username;

-- 插入示例知识库配置
INSERT INTO knowledge_bases (name, type, description, data_source, priority, enabled, created_at) 
VALUES 
    ('企业研究数据库', 'INTERNAL', '益普生内部研究数据和历史回复', 'internal_db', 1, TRUE, NOW()),
    ('PubMed', 'PUBLIC', '美国国家医学图书馆公开数据库', 'https://pubmed.ncbi.nlm.nih.gov', 2, TRUE, NOW()),
    ('EMBASE', 'PUBLIC', 'Elsevier医学文献数据库', 'https://www.embase.com', 3, TRUE, NOW()),
    ('中国知网', 'PUBLIC', '中国学术期刊数据库', 'https://www.cnki.net', 4, TRUE, NOW()),
    ('ClinicalTrials.gov', 'PUBLIC', '临床试验注册数据库', 'https://clinicaltrials.gov', 5, TRUE, NOW()),
    ('疾病药物关联库', 'EXTENDED', '疾病与药物关联扩展数据', 'extended_db', 6, TRUE, NOW())
ON DUPLICATE KEY UPDATE name=name;