-- Create the teams table
CREATE TABLE IF NOT EXISTS teams (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    owner_user_id INT NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (owner_user_id) REFERENCES users(id) ON DELETE CASCADE
);

-- Create the team_members table
CREATE TABLE IF NOT EXISTS team_members (
    id INT AUTO_INCREMENT PRIMARY KEY,
    team_id INT NOT NULL,
    user_id INT NOT NULL,
    joined_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
    UNIQUE KEY (team_id, user_id)
);