package admindashboard

import (
	"testing"
	"time"

	"hfb_sys/backend/internal/database"
	"hfb_sys/backend/internal/listingstatus"
	"hfb_sys/backend/internal/model"
	"hfb_sys/backend/internal/timeutil"
)

func TestListingDailyOverviewGroupsBySourceChannel(t *testing.T) {
	db := database.NewTestDB()
	if err := db.AutoMigrate(&model.ListingStatusEvent{}, &model.ListingUpload{}); err != nil {
		t.Fatalf("AutoMigrate() error = %v", err)
	}
	loc := timeutil.ShanghaiLocation()
	now := time.Date(2026, 7, 25, 12, 0, 0, 0, loc)
	listingID1 := uint64(1)
	listingID2 := uint64(2)
	listingID4 := uint64(4)

	uploads := []model.ListingUpload{
		{ListingID: &listingID1, UploaderName: "客服1", SourceChannel: "淘宝"},
		{ListingID: &listingID2, UploaderName: "客服2", SourceChannel: "微信"},
		{ListingID: &listingID4, UploaderName: "客服3"},
	}
	if err := db.Create(&uploads).Error; err != nil {
		t.Fatalf("create uploads error = %v", err)
	}

	events := []model.ListingStatusEvent{
		{ListingID: listingID1, EventType: listingstatus.EventPublished, Source: listingstatus.SourceReview, CreatedAt: now},
		{ListingID: listingID1, EventType: listingstatus.EventOffline, Source: listingstatus.SourceAdmin, CreatedAt: now.Add(time.Minute)},
		{ListingID: listingID2, EventType: listingstatus.EventRented, Source: listingstatus.SourceOrder, CreatedAt: now.Add(2 * time.Minute)},
		{ListingID: 3, EventType: listingstatus.EventPublished, Source: listingstatus.SourceSeller, CreatedAt: now.Add(3 * time.Minute)},
		{ListingID: listingID4, EventType: listingstatus.EventPublished, Source: listingstatus.SourceReview, CreatedAt: now.Add(4 * time.Minute)},
	}
	if err := db.Create(&events).Error; err != nil {
		t.Fatalf("create events error = %v", err)
	}

	overview, err := NewRepository(db).listingDailyOverview(t.Context(), now, 1)
	if err != nil {
		t.Fatalf("listingDailyOverview() error = %v", err)
	}
	if overview.Today.PublishedCount != 3 || overview.Today.ActiveOfflineCount != 1 || overview.Today.TradeLeaveCount != 1 {
		t.Fatalf("today stats = %#v", overview.Today)
	}

	statsByChannel := make(map[string]ListingChannelDayStatsDTO)
	for _, item := range overview.TodayChannels {
		statsByChannel[item.SourceChannel] = item
	}
	assertChannelStats(t, statsByChannel["淘宝"], 1, 1, 0)
	assertChannelStats(t, statsByChannel["微信"], 0, 0, 1)
	assertChannelStats(t, statsByChannel[listingChannelWebsite], 1, 0, 0)
	assertChannelStats(t, statsByChannel[listingChannelExternalUnknown], 1, 0, 0)
}

func assertChannelStats(t *testing.T, item ListingChannelDayStatsDTO, published, offline, tradeLeave int64) {
	t.Helper()
	if item.PublishedCount != published || item.ActiveOfflineCount != offline || item.TradeLeaveCount != tradeLeave {
		t.Fatalf("channel %q stats = %#v, want published=%d offline=%d tradeLeave=%d", item.SourceChannel, item, published, offline, tradeLeave)
	}
}