CREATE TABLE IF NOT EXISTS posts (
    id UUID PRIMARY KEY DEFAULT uuidv7(),
    text TEXT NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS videos (
    id UUID PRIMARY KEY DEFAULT uuidv7(),
    source TEXT NOT NULL,
    title TEXT NOT NULL,
    description TEXT,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS comments (
    id UUID PRIMARY KEY DEFAULT uuidv7(),
    post_id UUID REFERENCES posts,
    video_id UUID REFERENCES videos,
    author TEXT NOT NULL,
    text TEXT NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);