-- Weibo-HotSign Database Initialization Script for SQLite
-- Create tables according to development document specification

-- Users table
CREATE TABLE IF NOT EXISTS users (
    id TEXT PRIMARY KEY,
    username TEXT UNIQUE NOT NULL,
    email TEXT UNIQUE,
    hashed_password TEXT,
    wx_openid TEXT UNIQUE,
    wx_nickname TEXT,
    wx_avatar TEXT,
    is_admin INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    is_active INTEGER DEFAULT 1
);

-- Accounts table
CREATE TABLE IF NOT EXISTS accounts (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL,
    weibo_user_id TEXT NOT NULL,
    remark TEXT,
    encrypted_cookies TEXT NOT NULL,
    iv TEXT NOT NULL,
    status TEXT DEFAULT 'pending',
    last_checked_at TIMESTAMP NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
);

-- Tasks table
CREATE TABLE IF NOT EXISTS tasks (
    id TEXT PRIMARY KEY,
    account_id TEXT NOT NULL,
    cron_expression TEXT NOT NULL,
    is_enabled INTEGER DEFAULT 1,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (account_id) REFERENCES accounts(id) ON DELETE CASCADE
);

-- Signin logs table
CREATE TABLE IF NOT EXISTS signin_logs (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    account_id TEXT NOT NULL,
    topic_title TEXT,
    status TEXT NOT NULL,
    reward_info TEXT,
    error_message TEXT,
    signed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (account_id) REFERENCES accounts(id)
);

-- Create indexes for better performance
CREATE INDEX IF NOT EXISTS idx_users_email ON users(email);
CREATE INDEX IF NOT EXISTS idx_users_username ON users(username);
CREATE INDEX IF NOT EXISTS idx_users_wx_openid ON users(wx_openid);
CREATE INDEX IF NOT EXISTS idx_accounts_user_id ON accounts(user_id);
CREATE INDEX IF NOT EXISTS idx_accounts_status ON accounts(status);
CREATE INDEX IF NOT EXISTS idx_tasks_account_id ON tasks(account_id);
CREATE INDEX IF NOT EXISTS idx_tasks_is_enabled ON tasks(is_enabled);
CREATE INDEX IF NOT EXISTS idx_signin_logs_account_id ON signin_logs(account_id);
CREATE INDEX IF NOT EXISTS idx_signin_logs_signed_at ON signin_logs(signed_at);
CREATE INDEX IF NOT EXISTS idx_signin_logs_status ON signin_logs(status);

-- Invite codes table
CREATE TABLE IF NOT EXISTS invite_codes (
    id TEXT PRIMARY KEY,
    code TEXT UNIQUE NOT NULL,
    created_by TEXT NOT NULL,
    used_by TEXT,
    is_used INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    used_at TIMESTAMP NULL
);

CREATE INDEX IF NOT EXISTS idx_invite_codes_code ON invite_codes(code);
CREATE INDEX IF NOT EXISTS idx_invite_codes_is_used ON invite_codes(is_used);