package service

import (
	"math/big"
	"strings"
	"testing"
	"time"

	"github.com/GMWalletApp/epusdt/internal/testutil"
	"github.com/GMWalletApp/epusdt/model/dao"
	"github.com/GMWalletApp/epusdt/model/data"
	"github.com/GMWalletApp/epusdt/model/mdb"
	"github.com/GMWalletApp/epusdt/notify"
	"github.com/ethereum/go-ethereum/common"
)

func TestSendPaymentNotificationUsesLatestOrderUpdatedAt(t *testing.T) {
	cleanup := testutil.SetupTestDatabases(t)
	defer cleanup()

	const channelType = "test-pay-success-time"
	got := make(chan string, 1)
	notify.RegisterSender(channelType, func(config, text string) error {
		got <- text
		return nil
	})

	if err := dao.Mdb.Create(&mdb.NotificationChannel{
		Type:    channelType,
		Name:    "test",
		Config:  "{}",
		Events:  `{"pay_success":true}`,
		Enabled: true,
	}).Error; err != nil {
		t.Fatalf("seed notification channel: %v", err)
	}

	order := &mdb.Orders{
		TradeId:        "T202604270001",
		OrderId:        "ORD202604270001",
		Amount:         100,
		Currency:       "cny",
		ActualAmount:   14.28,
		Token:          "USDT",
		Network:        mdb.NetworkTron,
		ReceiveAddress: "TTestAddress",
		Status:         mdb.StatusWaitPay,
	}
	if err := dao.Mdb.Create(order).Error; err != nil {
		t.Fatalf("seed order: %v", err)
	}

	const createdAt = "2026-04-27 09:00:00"
	const staleUpdatedAt = "2026-04-27 09:01:00"
	const paidAt = "2026-04-27 10:20:30"
	if err := dao.Mdb.Exec("UPDATE orders SET created_at = ?, updated_at = ? WHERE trade_id = ?", createdAt, staleUpdatedAt, order.TradeId).Error; err != nil {
		t.Fatalf("set initial timestamps: %v", err)
	}

	var staleOrderModel mdb.Orders
	if err := dao.Mdb.Where("trade_id = ?", order.TradeId).Take(&staleOrderModel).Error; err != nil {
		t.Fatalf("load stale order: %v", err)
	}

	if err := dao.Mdb.Exec("UPDATE orders SET status = ?, updated_at = ? WHERE trade_id = ?", mdb.StatusPaySuccess, paidAt, order.TradeId).Error; err != nil {
		t.Fatalf("set paid timestamp: %v", err)
	}

	sendPaymentNotification(&staleOrderModel)

	select {
	case text := <-got:
		if !strings.Contains(text, "支付时间："+paidAt) {
			t.Fatalf("notification payment time = %q, want %s", text, paidAt)
		}
		if strings.Contains(text, "支付时间："+staleUpdatedAt) {
			t.Fatalf("notification used stale payment time: %q", text)
		}
	case <-time.After(2 * time.Second):
		t.Fatal("timed out waiting for notification")
	}
}

func TestTryProcessEvmERC20TransferUsesChainTokenContract(t *testing.T) {
	cleanup := testutil.SetupTestDatabases(t)
	defer cleanup()

	const (
		tradeID  = "T202605110001"
		orderID  = "ORD202605110001"
		tokenSym = "FOO"
		amount   = 12.34
	)
	contract := common.HexToAddress("0x1111111111111111111111111111111111111111")
	receiveAddress := common.HexToAddress("0x2222222222222222222222222222222222222222")

	if err := dao.Mdb.Create(&mdb.ChainToken{
		Network:         mdb.NetworkEthereum,
		Symbol:          tokenSym,
		ContractAddress: contract.Hex(),
		Decimals:        8,
		Enabled:         true,
	}).Error; err != nil {
		t.Fatalf("seed chain token: %v", err)
	}

	order := &mdb.Orders{
		TradeId:        tradeID,
		OrderId:        orderID,
		Amount:         100,
		Currency:       "CNY",
		ActualAmount:   amount,
		Token:          tokenSym,
		Network:        mdb.NetworkEthereum,
		ReceiveAddress: strings.ToLower(receiveAddress.Hex()),
		Status:         mdb.StatusWaitPay,
	}
	if err := dao.Mdb.Create(order).Error; err != nil {
		t.Fatalf("seed order: %v", err)
	}
	if err := data.LockTransaction(mdb.NetworkEthereum, order.ReceiveAddress, order.Token, order.TradeId, order.ActualAmount, time.Hour); err != nil {
		t.Fatalf("lock transaction: %v", err)
	}

	rawValue := big.NewInt(1_234_000_000) // 12.34 with 8 decimals
	TryProcessEvmERC20Transfer(mdb.NetworkEthereum, contract, receiveAddress, rawValue, "0xfoo-hash", time.Now().UnixMilli())

	paid, err := data.GetOrderInfoByTradeId(tradeID)
	if err != nil {
		t.Fatalf("load paid order: %v", err)
	}
	if paid.Status != mdb.StatusPaySuccess {
		t.Fatalf("order status = %d, want %d", paid.Status, mdb.StatusPaySuccess)
	}
	if paid.BlockTransactionId != "0xfoo-hash" {
		t.Fatalf("block transaction id = %q, want %q", paid.BlockTransactionId, "0xfoo-hash")
	}

	lockTradeID, err := data.GetTradeIdByWalletAddressAndAmountAndToken(mdb.NetworkEthereum, receiveAddress.Hex(), tokenSym, amount)
	if err != nil {
		t.Fatalf("lookup released lock: %v", err)
	}
	if lockTradeID != "" {
		t.Fatalf("runtime lock still exists for trade_id=%q", lockTradeID)
	}
}