-- 创建数据库
CREATE DATABASE IF NOT EXISTS admin_system;
USE admin_system;

-- 创建用户表
CREATE TABLE IF NOT EXISTS users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    role ENUM('admin', 'user') DEFAULT 'user',
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- 创建群组表
CREATE TABLE IF NOT EXISTS groups (
    id INT AUTO_INCREMENT PRIMARY KEY,
    group_id VARCHAR(50) NOT NULL UNIQUE,
    group_name VARCHAR(100) NOT NULL,
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- 创建交易表
CREATE TABLE IF NOT EXISTS transactions (
    id INT AUTO_INCREMENT PRIMARY KEY,
    group_id VARCHAR(50) NOT NULL,
    group_name VARCHAR(100) NOT NULL,
    type ENUM('deposit', 'withdrawal') NOT NULL,
    amount DECIMAL(10,2) NOT NULL,
    time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    INDEX idx_group_time (group_id, time)
);

-- 创建默认管理员账户 (密码: admin123)
INSERT INTO users (username, password, role) 
VALUES ('admin', '$2a$10$X7UrH5YxX5YxX5YxX5YxX.5YxX5YxX5YxX5YxX5YxX5YxX5YxX', 'admin')
ON DUPLICATE KEY UPDATE id=id;