-- =====================================================================
-- PAYMENT BROKER — global settings (admin-editable ZarinPal config) + is_test
-- Lets the merchant id / sandbox flag / amount unit be set from the admin
-- panel instead of env + redeploy. A client_app may still override per-site.
-- Also adds transactions.is_test so admin smoke-test payments never fire a
-- client's production webhook.
--
-- Apply manually on an existing volume (runs after 31_payment_broker.sql):
--   docker exec -i fr2-postgres psql -U flatrender -d flatrender < 33_payment_settings.sql
-- =====================================================================

CREATE SCHEMA IF NOT EXISTS payment;
SET search_path TO payment, public;

CREATE TABLE IF NOT EXISTS payment.settings (
    id                    SMALLINT PRIMARY KEY DEFAULT 1 CHECK (id = 1),  -- singleton row
    zarinpal_merchant_id  TEXT NOT NULL DEFAULT '',
    zarinpal_sandbox      BOOLEAN NOT NULL DEFAULT TRUE,
    zarinpal_amount_unit  TEXT NOT NULL DEFAULT 'rial',   -- 'rial' | 'toman'
    updated_at            TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- NOTE: the singleton row is intentionally NOT pre-seeded. Until an admin saves
-- settings, GetSettings returns no-row and the broker falls back to ENV
-- (ZARINPAL_MERCHANT_ID / ZARINPAL_SANDBOX / ZARINPAL_AMOUNT_UNIT). Seeding a
-- default row here would force sandbox=TRUE and silently override a production
-- env (ZARINPAL_SANDBOX=false), routing real payments to the sandbox gateway.

DROP TRIGGER IF EXISTS tg_pay_settings_updated ON payment.settings;
CREATE TRIGGER tg_pay_settings_updated BEFORE UPDATE ON payment.settings
    FOR EACH ROW EXECUTE FUNCTION public.tg_set_updated_at();

-- Mark admin smoke-test transactions so the webhook dispatcher never notifies a
-- real client (which could otherwise credit coins/activate a plan from a test).
ALTER TABLE payment.transactions ADD COLUMN IF NOT EXISTS is_test BOOLEAN NOT NULL DEFAULT FALSE;