CREATE TABLE users (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    preferred_name VARCHAR(80) NOT NULL,
    email VARCHAR(190) NOT NULL UNIQUE,
    password_hash VARCHAR(255) NOT NULL,
    theme ENUM('light', 'dark') NOT NULL DEFAULT 'light',
    light_background VARCHAR(255) NULL DEFAULT NULL,
    dark_background VARCHAR(255) NULL DEFAULT NULL,
    focus_duration SMALLINT UNSIGNED NOT NULL DEFAULT 60,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE tasks (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    user_id INT UNSIGNED NOT NULL,
    title VARCHAR(255) NOT NULL,
    is_complete TINYINT(1) NOT NULL DEFAULT 0,
    is_primary TINYINT(1) NOT NULL DEFAULT 0,
    sort_order INT UNSIGNED NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_tasks_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
    INDEX idx_tasks_user_order (user_id, sort_order)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE links (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    user_id INT UNSIGNED NOT NULL,
    title VARCHAR(120) NOT NULL,
    url VARCHAR(2048) NOT NULL,
    sort_order INT UNSIGNED NOT NULL DEFAULT 0,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_links_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
    INDEX idx_links_user_order (user_id, sort_order)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE quotes (
    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    quote TEXT NOT NULL,
    author VARCHAR(120) NULL,
    active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

INSERT INTO quotes (quote, author) VALUES
('Begin with one quiet step, {name}.', NULL),
('Enough for today can still be beautiful.', NULL),
('Attention is a kind of kindness.', NULL),
('Make room for the next good thing.', NULL),
('{name}, return to the work gently.', NULL);