-- Create the user settings table.
-- Each user has at most one settings row (user_id is the PK).
-- Default values match the original AI Weekly Synth defaults.

CREATE TABLE settings (
    user_id                UUID PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
    theme                  TEXT NOT NULL DEFAULT 'Intelligence Artificielle',
    max_age_days           INTEGER NOT NULL DEFAULT 7
                           CHECK (max_age_days BETWEEN 1 AND 365),
    categories             JSONB NOT NULL DEFAULT '["Annonces majeures", "Recherche et innovation", "Industrie et entreprises", "Secteur public", "Opinions et analyses"]'::jsonb,
    max_items_per_category INTEGER NOT NULL DEFAULT 4
                           CHECK (max_items_per_category BETWEEN 1 AND 50),
    search_agent_behavior  TEXT NOT NULL DEFAULT '',
    updated_at             TIMESTAMPTZ NOT NULL DEFAULT now()
);