-- +goose Up

CREATE TABLE IF NOT EXISTS user_auth (
    id            TEXT PRIMARY KEY DEFAULT gen_random_uuid()::text,
    username      TEXT NOT NULL UNIQUE,
    email         TEXT NOT NULL UNIQUE,
    password_hash TEXT NOT NULL,
    created_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at    TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- created_at is Unix seconds, not a timestamp: internal/auth/session.go writes
-- now.Unix() and scans the column straight into an int64.
CREATE TABLE IF NOT EXISTS user_session (
    id          TEXT PRIMARY KEY,
    secret_hash BYTEA NOT NULL,
    user_id     TEXT NOT NULL REFERENCES user_auth (id) ON DELETE CASCADE,
    created_at  BIGINT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_user_session_user_id ON user_session (user_id);

-- +goose StatementBegin
CREATE FUNCTION set_updated_at() RETURNS trigger AS $$
BEGIN
    NEW.updated_at = now();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;
-- +goose StatementEnd

CREATE TRIGGER user_auth_set_updated_at
    BEFORE UPDATE ON user_auth
    FOR EACH ROW
    EXECUTE FUNCTION set_updated_at();

-- +goose Down

DROP TRIGGER IF EXISTS user_auth_set_updated_at ON user_auth;
DROP FUNCTION IF EXISTS set_updated_at();
DROP TABLE IF EXISTS user_session;
DROP TABLE IF EXISTS user_auth;