CREATE TABLE IF NOT EXISTS scraped_posts (
    id BIGSERIAL PRIMARY KEY,
    board_key VARCHAR(32) NOT NULL,
    board_name VARCHAR(100) NOT NULL,
    board_id INTEGER NOT NULL,
    article_id INTEGER NOT NULL,
    title VARCHAR(500) NOT NULL,
    post_url TEXT NOT NULL,
    author VARCHAR(100),
    published_at TIMESTAMP,
    summary TEXT,
    content_text TEXT,
    attachments JSONB NOT NULL DEFAULT '[]'::jsonb,
    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
    CONSTRAINT uq_scraped_posts_board_article UNIQUE (board_key, article_id),
    CONSTRAINT ck_scraped_posts_board_key CHECK (board_key IN ('notice', 'archive', 'jobs'))
);

CREATE INDEX IF NOT EXISTS idx_scraped_posts_board_key_created_at
    ON scraped_posts (board_key, created_at DESC);

CREATE TABLE IF NOT EXISTS crawl_runs (
    id BIGSERIAL PRIMARY KEY,
    started_at TIMESTAMP NOT NULL DEFAULT NOW(),
    finished_at TIMESTAMP,
    status VARCHAR(20) NOT NULL,
    discovered_count INTEGER NOT NULL DEFAULT 0,
    inserted_count INTEGER NOT NULL DEFAULT 0,
    error_message TEXT
);