CREATE TABLE IF NOT EXISTS followed_bands (
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    band_key VARCHAR(255) NOT NULL,
    display_name VARCHAR(255) NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (user_id, band_key)
);

CREATE TABLE IF NOT EXISTS followed_venues (
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    venue_id INTEGER NOT NULL REFERENCES venues(id) ON DELETE CASCADE,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (user_id, venue_id)
);

CREATE TABLE IF NOT EXISTS concert_diary (
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    concert_id INTEGER NOT NULL REFERENCES concerts(id) ON DELETE CASCADE,
    rating SMALLINT NOT NULL CHECK (rating BETWEEN 1 AND 5),
    favorite_song VARCHAR(255),
    notes TEXT,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (user_id, concert_id)
);