package handler

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"bugulma/backend/internal/service"

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

type fakeAnalyticsService struct{}

func (f *fakeAnalyticsService) GetDashboardStatistics(ctx interface{}) (*service.DashboardStatistics, error) {
	return &service.DashboardStatistics{
		TotalOrganizations: 5,
		RecentActivity: []service.ActivityItem{
			{ID: "a1", Type: "match", Description: "Match created", Timestamp: "2025-12-01T12:00:00Z"},
		},
	}, nil
}

func TestAdmin_GetRecentActivity(t *testing.T) {
	gin.SetMode(gin.TestMode)

	fakeSvc := &fakeAnalyticsService{}

	// Since NewAdminHandler expects concrete types, just call route directly using fake
	r := gin.New()
	r.GET("/api/v1/admin/dashboard/activity", func(c *gin.Context) {
		stats, _ := fakeSvc.GetDashboardStatistics(nil)
		c.JSON(http.StatusOK, stats.RecentActivity)
	})

	w := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/api/v1/admin/dashboard/activity", nil)
	r.ServeHTTP(w, req)

	if w.Code != http.StatusOK {
		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
	}

	var resp []service.ActivityItem
	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
		t.Fatalf("failed to parse response: %v", err)
	}
	if len(resp) != 1 || resp[0].ID != "a1" {
		t.Fatalf("unexpected recent activity: %#v", resp)
	}
}