CREATE TABLE IF NOT EXISTS schema_migrations (
    version bigint PRIMARY KEY,
    applied_at timestamptz NOT NULL DEFAULT now()
);
-- statement-break
CREATE TABLE IF NOT EXISTS import_runs (
    id bigserial PRIMARY KEY,
    source_sha256 text NOT NULL UNIQUE,
    source_path text NOT NULL,
    status text NOT NULL CHECK (status IN ('RUNNING','COMPLETED','FAILED')),
    source_rows bigint NOT NULL DEFAULT 0,
    session_rows bigint NOT NULL DEFAULT 0,
    attempt_rows bigint NOT NULL DEFAULT 0,
    started_at timestamptz NOT NULL DEFAULT now(),
    completed_at timestamptz
);
-- statement-break
CREATE TABLE IF NOT EXISTS merchants (
    id bigserial PRIMARY KEY,
    source_key text NOT NULL UNIQUE,
    category_id bigint NOT NULL,
    category_title text NOT NULL,
    display_name text NOT NULL,
    profile_is_synthetic boolean NOT NULL DEFAULT true
);
-- statement-break
CREATE TABLE IF NOT EXISTS terminals (
    id bigserial PRIMARY KEY,
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    source_key text NOT NULL,
    verify_type text NOT NULL,
    UNIQUE (merchant_id, source_key)
);
-- statement-break
CREATE TABLE IF NOT EXISTS payment_sessions (
    id bigserial PRIMARY KEY,
    import_run_id bigint NOT NULL REFERENCES import_runs(id),
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    terminal_id bigint NOT NULL REFERENCES terminals(id),
    source_key text NOT NULL,
    status text NOT NULL,
    amount_rial bigint NOT NULL CHECK (amount_rial >= 0),
    fee_amount_rial bigint NOT NULL CHECK (fee_amount_rial >= 0),
    payer_card_key text,
    created_at timestamptz NOT NULL,
    expires_at timestamptz,
    verified_at timestamptz,
    settled_at timestamptz,
    UNIQUE (merchant_id, source_key)
);
-- statement-break
CREATE TABLE IF NOT EXISTS payment_attempts (
    id bigserial PRIMARY KEY,
    session_id bigint NOT NULL REFERENCES payment_sessions(id) ON DELETE CASCADE,
    sequence integer NOT NULL CHECK (sequence > 0),
    status text NOT NULL,
    created_at timestamptz,
    init_time_ms integer,
    verify_time_ms integer,
    UNIQUE (session_id, sequence)
);
-- statement-break
CREATE INDEX IF NOT EXISTS payment_sessions_merchant_created_idx ON payment_sessions (merchant_id, created_at DESC, id DESC);
-- statement-break
CREATE INDEX IF NOT EXISTS payment_sessions_status_idx ON payment_sessions (merchant_id, status, created_at DESC);
-- statement-break
CREATE INDEX IF NOT EXISTS payment_attempts_session_idx ON payment_attempts (session_id, sequence);
-- statement-break
CREATE TABLE IF NOT EXISTS merchant_users (
    id bigserial PRIMARY KEY,
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    username text NOT NULL UNIQUE,
    password_hash text NOT NULL,
    is_active boolean NOT NULL DEFAULT true,
    created_at timestamptz NOT NULL DEFAULT now()
);
-- statement-break
CREATE TABLE IF NOT EXISTS auth_sessions (
    id bigserial PRIMARY KEY,
    user_id bigint NOT NULL REFERENCES merchant_users(id),
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    token_hash bytea NOT NULL UNIQUE,
    csrf_token text NOT NULL,
    created_at timestamptz NOT NULL,
    idle_expires_at timestamptz NOT NULL,
    absolute_expires_at timestamptz NOT NULL,
    revoked_at timestamptz,
    last_seen_at timestamptz NOT NULL
);
-- statement-break
CREATE INDEX IF NOT EXISTS auth_sessions_token_idx ON auth_sessions (token_hash) WHERE revoked_at IS NULL;
-- statement-break
INSERT INTO schema_migrations(version) VALUES (1) ON CONFLICT DO NOTHING;