package gateway_test

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"strconv"
	"testing"
	"time"

	"github.com/wangjia/pay/config"
	"github.com/wangjia/pay/internal/accounts"
	"github.com/wangjia/pay/internal/gateway"
	"github.com/wangjia/pay/internal/model"
	"github.com/wangjia/pay/internal/provider"
	"github.com/wangjia/pay/internal/provider/crypto"
	"github.com/wangjia/pay/internal/store"
)

// TestE2ECryptoQuerySettles 验证真 crypto adapter(非 fake)跑通 P2 全链:
// 下单(单地址+唯一金额)→ 查单兜底(假 TronGrid only_confirmed 精确匹配)→ 入账 → webhook。
// 不经 providerbuild.BuildRegistry(那是 main 装配期用的),直接用 crypto.New 组 gateway——
// 本用例验证的是「真 adapter 跑通管线」,BuildRegistry 本身的装配/跳过决策由
// internal/providerbuild/registry_build_test.go 的表驱动用例覆盖。
func TestE2ECryptoQuerySettles(t *testing.T) {
	const addr = "TWe2eADDRESS00000000000000000000000"
	t.Setenv("E2E_ADDRESS", addr)
	t.Setenv("E2E_TRONGRID_KEY", "k")

	// 假 TronGrid:已确认、金额精确匹配、块时晚于建单的转账(期望金额在下单后从 payload 取)。
	var expected int64
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		resp := map[string]any{"success": true, "data": []map[string]any{{
			"transaction_id":  "tx-e2e",
			"to":              addr,
			"type":            "Transfer",
			"value":           strconv.FormatInt(expected, 10),
			"block_timestamp": time.Now().Add(5 * time.Second).UnixMilli(), // 晚于建单(查单在下单后发生)
		}}}
		_ = json.NewEncoder(w).Encode(resp)
	}))
	defer ts.Close()

	db := model.OpenTestDB(t)
	orders := store.NewOrderStore(db)
	acctReg := accounts.New([]config.AccountConfig{
		{AccountID: "e2e-1", Channel: "crypto", Enabled: true, Region: "global", CredentialEnvPrefix: "e2e"},
	})
	preg := provider.NewRegistry()
	preg.Register(crypto.New(acctReg, crypto.WithBaseURL(ts.URL), crypto.WithHTTPClient(ts.Client())))

	// gateway.New 要求 accounts.Picker(非裸 *accounts.Registry);单账户场景用默认
	// round_robin 的 Router 包一层即可(同 gateway_test.go newGateway 的装法)。
	picker := accounts.NewRouter(acctReg, nil, nil)

	spy := &spyEnqueuer{}
	g := gateway.New(orders, preg, picker, cryptoResolver{}, spy, "global")

	// 下单 → 从 session payload 拿到期望链上金额(base+唯一尾数),喂给假 TronGrid。
	res, err := g.CreateOrder(context.Background(), gateway.CreateOrderInput{
		SKU: "pro_year", Method: "crypto", BizSystem: "pangolin", BizRef: "u-e2e",
	})
	if err != nil {
		t.Fatalf("create: %v", err)
	}
	atts, _ := orders.ListAttemptsByStatus(model.AttemptPending, 10)
	if len(atts) != 1 {
		t.Fatalf("want 1 pending attempt, got %d", len(atts))
	}
	expected = res.Session.Payload["amount_minor"].(int64) // 唯一金额(随机尾数)只有 payload/provider_ref 知道

	// 查单兜底 → 命中 → 入账 → webhook
	n, err := g.SyncPendingAttempts(context.Background(), 10)
	if err != nil || n != 1 {
		t.Fatalf("sync settled=%d err=%v want 1", n, err)
	}
	o, _ := orders.GetOrder(res.OrderNo)
	if o.Status != model.OrderPaidV2 {
		t.Fatalf("order status = %s want paid", o.Status)
	}
	if len(spy.calls) != 1 || spy.calls[0]["product_biz_code"] != "pro_year" {
		t.Fatalf("webhook = %+v", spy.calls)
	}
}

type cryptoResolver struct{}

func (cryptoResolver) Resolve(sku, currency string) (int64, string, string, error) {
	if sku == "pro_year" && currency == "USDT" {
		return 29990000, "Pro 年付", "pro_year", nil
	}
	return 0, "", "", gateway.ErrProductNotFound
}