CREATE TABLE sources (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    url VARCHAR(2048) NOT NULL,
    type VARCHAR(50) NOT NULL, -- 'rss', 'api', 'website'
    status VARCHAR(50) NOT NULL DEFAULT 'active',
    last_crawled_at TIMESTAMP NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    deleted_at TIMESTAMP NULL,
    INDEX idx_sources_status (status)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE source_categories (
    source_id BIGINT UNSIGNED NOT NULL,
    category VARCHAR(100) NOT NULL,
    PRIMARY KEY (source_id, category),
    FOREIGN KEY (source_id) REFERENCES sources(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;