package wallet_test

import (
	"context"
	"testing"

	"hyapp/pkg/xerr"
	"hyapp/services/wallet-service/internal/domain/ledger"
	walletservice "hyapp/services/wallet-service/internal/service/wallet"
	"hyapp/services/wallet-service/internal/storage/memory"
)

// TestDebitGiftIsIdempotent 验证扣费命令重复提交时返回原始回执。
func TestDebitGiftIsIdempotent(t *testing.T) {
	repository := memory.NewRepository()
	repository.SetBalance(10001, 100)
	svc := walletservice.New(walletservice.Config{Currency: "coin"}, repository)
	command := ledger.DebitGiftCommand{
		CommandID:     "cmd-1",
		RoomID:        "room-1",
		SenderUserID:  10001,
		TargetUserID:  10002,
		GiftID:        "rose",
		GiftCount:     2,
		GiftUnitValue: 10,
	}

	first, err := svc.DebitGift(context.Background(), command)
	if err != nil {
		t.Fatalf("first debit failed: %v", err)
	}

	second, err := svc.DebitGift(context.Background(), command)
	if err != nil {
		t.Fatalf("second debit failed: %v", err)
	}

	if first.BillingReceiptID != second.BillingReceiptID || second.BalanceAfter != 80 {
		t.Fatalf("idempotency mismatch: first=%+v second=%+v", first, second)
	}
}

// TestDebitGiftInsufficientBalance 锁定余额不足的稳定 reason。
func TestDebitGiftInsufficientBalance(t *testing.T) {
	repository := memory.NewRepository()
	repository.SetBalance(10001, 1)
	svc := walletservice.New(walletservice.Config{Currency: "coin"}, repository)

	_, err := svc.DebitGift(context.Background(), ledger.DebitGiftCommand{
		CommandID:     "cmd-2",
		RoomID:        "room-1",
		SenderUserID:  10001,
		TargetUserID:  10002,
		GiftID:        "rose",
		GiftCount:     1,
		GiftUnitValue: 10,
	})
	if !xerr.IsCode(err, xerr.InsufficientBalance) {
		t.Fatalf("expected INSUFFICIENT_BALANCE, got %v", err)
	}
}