package playletser

import (
	"reflect"
	"testing"
	"time"
	"videoweb/pub/models/playletmod"

	"go.mongodb.org/mongo-driver/bson"
)

func TestOperateListFiltersAndSorts(t *testing.T) {
	for _, typ := range []int64{operateListLatest, operateListHot, operateListOriginal, operateListRandom} {
		filter := operateListFilter(typ)
		if filter[playletmod.FN.Playlet.Status] != playletmod.StatusUp {
			t.Fatalf("type %d must contain the up status filter", typ)
		}
		_, recommend := filter[playletmod.FN.Playlet.IsRecommend]
		if recommend != (typ == operateListOriginal) {
			t.Fatalf("type %d recommend filter = %v", typ, recommend)
		}
	}
	if got := operateListSort(operateListLatest)[0].Key; got != playletmod.FN.Playlet.UpdatedAt {
		t.Fatalf("latest sort = %s", got)
	}
	if got := operateListSort(operateListHot)[0].Key; got != playletmod.FN.Playlet.HeatValue {
		t.Fatalf("hot sort = %s", got)
	}
}

func TestOperateRandomPipelineIsStableWithinDay(t *testing.T) {
	filter := bson.M{playletmod.FN.Playlet.Status: playletmod.StatusUp}
	day := time.Date(2026, 10, 24, 1, 0, 0, 0, time.UTC)
	first := operateRandomPipeline(filter, 20, 10, day)
	second := operateRandomPipeline(filter, 20, 10, day.Add(time.Hour))
	if !reflect.DeepEqual(first, second) {
		t.Fatal("random order changed within one China Standard Time day")
	}
	third := operateRandomPipeline(filter, 20, 10, day.Add(24*time.Hour))
	if reflect.DeepEqual(first, third) {
		t.Fatal("random order did not change on the next China Standard Time day")
	}
	if first[4]["$skip"] != int64(20) || first[5]["$limit"] != int64(10) {
		t.Fatalf("pagination stages = %v", first)
	}
}