-- +goose Up
-- Stripe customer / subscription linkage + webhook idempotency (company-scoped).

ALTER TABLE companies
  ADD COLUMN IF NOT EXISTS stripe_customer_id TEXT;

CREATE UNIQUE INDEX IF NOT EXISTS companies_stripe_customer_id_uidx
  ON companies (stripe_customer_id)
  WHERE stripe_customer_id IS NOT NULL AND stripe_customer_id <> '';

ALTER TABLE company_plans
  ADD COLUMN IF NOT EXISTS stripe_subscription_id TEXT,
  ADD COLUMN IF NOT EXISTS stripe_price_id TEXT;

CREATE INDEX IF NOT EXISTS company_plans_stripe_subscription_id_idx
  ON company_plans (stripe_subscription_id)
  WHERE stripe_subscription_id IS NOT NULL AND stripe_subscription_id <> '';

CREATE TABLE IF NOT EXISTS stripe_webhook_events (
  event_id TEXT PRIMARY KEY,
  event_type TEXT NOT NULL,
  company_id UUID REFERENCES companies(id) ON DELETE SET NULL,
  processed_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- +goose Down
DROP TABLE IF EXISTS stripe_webhook_events;
DROP INDEX IF EXISTS company_plans_stripe_subscription_id_idx;
ALTER TABLE company_plans DROP COLUMN IF EXISTS stripe_price_id;
ALTER TABLE company_plans DROP COLUMN IF EXISTS stripe_subscription_id;
DROP INDEX IF EXISTS companies_stripe_customer_id_uidx;
ALTER TABLE companies DROP COLUMN IF EXISTS stripe_customer_id;