package store_test

import (
	"testing"
	"time"

	"github.com/wangjia/pay/internal/model"
	"github.com/wangjia/pay/internal/store"
)

func newSubStore(t *testing.T) *store.SubscriptionStore {
	return store.NewSubscriptionStore(model.OpenTestDB(t))
}

func TestSubscriptionCreateIdempotent(t *testing.T) {
	s := newSubStore(t)
	sub := &model.Subscription{SubID: "SUB-1", Channel: "stripe", ProviderSubRef: "sub_x",
		OutTradeNo: "PAY-1", BizSystem: "pangolin", BizRef: "u-1", BizCode: "pro_month",
		AmountMinor: 2999, Currency: "USD", Status: model.SubActive}
	created, err := s.Create(sub)
	if err != nil || !created {
		t.Fatalf("first create: created=%v err=%v", created, err)
	}
	// 同 provider_sub_ref 再建 → 幂等 no-op(Stripe 重投 checkout.completed)
	again, err := s.Create(&model.Subscription{SubID: "SUB-2", Channel: "stripe", ProviderSubRef: "sub_x",
		OutTradeNo: "PAY-1", AmountMinor: 2999, Currency: "USD", Status: model.SubActive})
	if err != nil || again {
		t.Fatalf("dup create: again=%v err=%v", again, err)
	}
}

func TestSubscriptionStateMachine(t *testing.T) {
	s := newSubStore(t)
	end := time.Now().Add(30 * 24 * time.Hour)
	if _, err := s.Create(&model.Subscription{SubID: "SUB-9", Channel: "stripe", ProviderSubRef: "sub_9",
		OutTradeNo: "PAY-9", AmountMinor: 2999, Currency: "USD", Status: model.SubActive}); err != nil {
		t.Fatal(err)
	}
	// active → past_due
	ok, _ := s.MarkPastDue("stripe", "sub_9")
	if !ok {
		t.Fatal("MarkPastDue should flip active→past_due")
	}
	// past_due → active(续费恢复)
	ok, _ = s.Activate("SUB-9", &end)
	if !ok {
		t.Fatal("Activate should recover past_due→active")
	}
	// → canceled(终态)
	ok, _ = s.MarkCanceled("SUB-9")
	if !ok {
		t.Fatal("MarkCanceled should flip →canceled")
	}
	// canceled 后不可复活
	if ok, _ := s.Activate("SUB-9", &end); ok {
		t.Fatal("canceled sub must not be re-activated")
	}
	if ok, _ := s.MarkPastDue("stripe", "sub_9"); ok {
		t.Fatal("canceled sub must not go past_due")
	}
	got, err := s.GetBySubID("SUB-9")
	if err != nil || got.Status != model.SubCanceled {
		t.Fatalf("final status = %v err=%v", got.Status, err)
	}
}