package router

import (
	"bytes"
	"log"
	"net/http/httptest"
	"strings"
	"testing"

	"affiliate_dash/internal/handler"
	"affiliate_dash/internal/pkg/applog"
	"affiliate_dash/internal/pkg/jwt"
	"affiliate_dash/internal/pkg/openlog"
	"affiliate_dash/internal/service"
	"affiliate_dash/internal/testdb"

	"github.com/gin-gonic/gin"
)

func TestSetupDoesNotPanic(t *testing.T) {
	gin.SetMode(gin.TestMode)
	db := testdb.New(t)
	codec, err := service.NewSecretCodec("test-master-key")
	if err != nil {
		t.Fatalf("codec: %v", err)
	}
	tenantSvc := service.NewTenantService(db)
	authSvc := service.NewAuthService(db, jwt.NewManager("test-jwt"), tenantSvc)
	userSvc := service.NewUserService(db, tenantSvc)
	callbackSvc := service.NewCallbackService(db, codec)
	fulfillmentSvc := service.NewFulfillmentService(db, callbackSvc)
	merchantSvc := service.NewMerchantService(db, codec, tenantSvc)
	rechargeSvc := service.NewRechargeService(db, fulfillmentSvc, "")
	deliverySvc := service.NewDeliveryService(fulfillmentSvc, "", "", "", "", 0)

	defer func() {
		if recovered := recover(); recovered != nil {
			t.Fatalf("setup should not panic: %v", recovered)
		}
	}()
	_ = Setup(&Handlers{
		Auth:          handler.NewAuthHandler(authSvc),
		Dashboard:     handler.NewDashboardHandler(fulfillmentSvc),
		User:          handler.NewUserHandler(userSvc),
		Open:          handler.NewOpenV1Handler(merchantSvc, fulfillmentSvc, deliverySvc),
		SourceOpen:    handler.NewOpenHandler(fulfillmentSvc),
		Merchant:      handler.NewMerchantHandler(merchantSvc, fulfillmentSvc, callbackSvc, deliverySvc, rechargeSvc),
		Recharge:      handler.NewRechargeHandler(rechargeSvc),
		JWT:           jwt.NewManager("test-jwt"),
		Tenant:        tenantSvc,
		OpenDB:        db,
		SecretCodec:   codec,
		OpenAPIKey:    "source-key",
		OpenAPISecret: "source-secret",
		OpenSignSkew:  300,
	})
}

func TestIsPollingEndpoint(t *testing.T) {
	tests := []struct {
		method   string
		path     string
		expected bool
	}{
		{"GET", "/health", true},
		{"GET", "/api/delivery/v1/orders/FO123/bind-result", true},
		{"GET", "/api/delivery/v1/orders/FO123", true},
		{"GET", "/api/client/v1/orders/FO123", true},
		{"GET", "/api/client/v1/wallet", true},
		{"GET", "/api/open/v1/orders/FO123", true},
		{"POST", "/api/client/v1/orders", false},
		{"POST", "/api/delivery/v1/orders/FO123/submit", false},
		{"POST", "/api/client/v1/orders/FO123/cancel", false},
		{"GET", "/api/dashboard", false},
	}

	for _, tc := range tests {
		got := isPollingEndpoint(tc.method, tc.path)
		if got != tc.expected {
			t.Errorf("isPollingEndpoint(%s, %s) = %v, expected %v", tc.method, tc.path, got, tc.expected)
		}
	}
}

func TestRequestLoggerGeneratesAndPassesReqID(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.Use(requestLogger())
	r.GET("/test", func(c *gin.Context) {
		reqID := openlog.GetReqID(c)
		if reqID == "" || reqID == "-" {
			t.Errorf("expected req_id in context, got empty")
		}
		c.String(200, "ok")
	})

	req := httptest.NewRequest("GET", "/test", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)

	respReqID := w.Header().Get("X-Request-ID")
	if respReqID == "" {
		t.Errorf("expected X-Request-ID in response header")
	}
}

func TestRequestLoggerSuppressesPollingOnInfo(t *testing.T) {
	gin.SetMode(gin.TestMode)
	var buf bytes.Buffer
	log.SetOutput(&buf)
	defer log.SetOutput(log.Writer())

	applog.SetLevel("info")

	r := gin.New()
	r.Use(requestLogger())
	r.GET("/health", func(c *gin.Context) {
		c.String(200, "ok")
	})
	r.GET("/api/client/v1/orders/:id", func(c *gin.Context) {
		c.String(200, "ok")
	})

	// 1. In INFO level, polling requests with 200 should be silenced
	buf.Reset()
	req := httptest.NewRequest("GET", "/health", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if buf.Len() > 0 {
		t.Errorf("expected /health 200 to be silenced in INFO mode, got: %s", buf.String())
	}

	buf.Reset()
	req = httptest.NewRequest("GET", "/api/client/v1/orders/FO12345", nil)
	w = httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if buf.Len() > 0 {
		t.Errorf("expected GET order 200 to be silenced in INFO mode, got: %s", buf.String())
	}

	// 2. In DEBUG level, polling requests should appear as [DEBUG]
	applog.SetLevel("debug")
	buf.Reset()
	req = httptest.NewRequest("GET", "/api/client/v1/orders/FO12345", nil)
	w = httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if !strings.Contains(buf.String(), "[DEBUG] [HTTP] 200 GET /api/client/v1/orders/FO12345") {
		t.Errorf("expected GET order to appear as [DEBUG] in DEBUG mode, got: %s", buf.String())
	}
}