-- Create API Keys Table
CREATE TABLE api_keys (
    key_id INT PRIMARY KEY AUTO_INCREMENT,
    user_id INT NOT NULL,
    api_key VARCHAR(64) NOT NULL UNIQUE,
    name VARCHAR(255) NOT NULL,
    description TEXT,
    is_active BOOLEAN DEFAULT TRUE,
    last_used TIMESTAMP NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(user_id)
);

-- Create API Rate Limiting Table
CREATE TABLE api_rate_limits (
    rate_limit_id INT PRIMARY KEY AUTO_INCREMENT,
    api_key VARCHAR(64) NOT NULL,
    request_count INT DEFAULT 1,
    window_start TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (api_key) REFERENCES api_keys(api_key)
);

-- Create Indexes
CREATE INDEX idx_api_key_active ON api_keys(api_key, is_active);
CREATE INDEX idx_rate_limit_window ON api_rate_limits(api_key, window_start);