package srv_hotnav

import (
	"context"
	"time"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/models/hotnavmod"
	"videoweb/pub/mongos"

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

func GetHotNavList(ctx context.Context, req *GetHotNavListReq) (*GetHotNavListResp, *srvdef.SrvErr) {
	filter := bson.M{}
	count, serr := hotnavmod.CountHotNav(ctx, filter)
	if serr != nil {
		return nil, serr
	}
	if count == 0 {
		return &GetHotNavListResp{
			Total: 0,
			List:  make(hotnavmod.HotNavList, 0),
		}, nil
	}

	opts := options.FindOptions{}
	opts.SetSort(bson.D{
		{Key: hotnavmod.FN.HotNav.Sort, Value: -1},
		{Key: hotnavmod.FN.HotNav.CreatedAt, Value: -1},
	})
	opts.SetLimit(req.PageSize)
	opts.SetSkip((req.PageNum - 1) * req.PageSize)
	list, serr := hotnavmod.FindManyHotNav(ctx, filter, &opts)
	if serr != nil {
		return nil, serr
	}
	return &GetHotNavListResp{
		Total: count,
		List:  list,
	}, nil
}

func AddHotNav(ctx context.Context, req *AddHotNavReq) *srvdef.SrvErr {
	now := time.Now()
	status := true
	if req.Status != nil {
		status = *req.Status
	}
	doc := &hotnavmod.HotNav{
		Id:        mongos.Lid.HotNav.Get(),
		Title:     req.Title,
		Intro:     req.Intro,
		Url:       req.Url,
		Icon:      req.Icon,
		Sort:      req.Sort,
		Status:    status,
		CreatedAt: now,
		UpdatedAt: now,
	}
	return hotnavmod.InsertOneHotNav(ctx, doc)
}

func UpdateHotNav(ctx context.Context, req *UpdateHotNavReq) *srvdef.SrvErr {
	filter := bson.M{hotnavmod.FN.HotNav.Id: req.Id}
	updateFields := bson.M{
		hotnavmod.FN.HotNav.UpdatedAt: time.Now(),
	}
	if req.Param.Title != nil {
		updateFields[hotnavmod.FN.HotNav.Title] = *req.Param.Title
	}
	if req.Param.Intro != nil {
		updateFields[hotnavmod.FN.HotNav.Intro] = *req.Param.Intro
	}
	if req.Param.Url != nil {
		updateFields[hotnavmod.FN.HotNav.Url] = *req.Param.Url
	}
	if req.Param.Icon != nil {
		updateFields[hotnavmod.FN.HotNav.Icon] = *req.Param.Icon
	}
	if req.Param.Sort != nil {
		updateFields[hotnavmod.FN.HotNav.Sort] = *req.Param.Sort
	}
	if req.Param.Status != nil {
		updateFields[hotnavmod.FN.HotNav.Status] = *req.Param.Status
	}
	return hotnavmod.UpdateOneHotNav(ctx, filter, bson.M{"$set": updateFields})
}

func DelHotNav(ctx context.Context, req *DelHotNavReq) *srvdef.SrvErr {
	filter := bson.M{hotnavmod.FN.HotNav.Id: req.Id}
	count, serr := hotnavmod.DelOneHotNav(ctx, filter)
	if serr != nil {
		return serr
	}
	if count == 0 {
		return srvdef.New(srvdef.ErrNoData, "", "")
	}
	return nil
}