app-cloudep-tweeting-service/internal/logic/commentservice/get_comments_logic.go

105 lines
2.6 KiB
Go

package commentservicelogic
import (
"app-cloudep-tweeting-service/internal/domain"
model "app-cloudep-tweeting-service/internal/model/mongo"
"context"
ers "code.30cm.net/digimon/library-go/errs"
"app-cloudep-tweeting-service/gen_result/pb/tweeting"
"app-cloudep-tweeting-service/internal/svc"
"github.com/zeromicro/go-zero/core/logx"
)
type GetCommentsLogic struct {
ctx context.Context
svcCtx *svc.ServiceContext
logx.Logger
}
func NewGetCommentsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetCommentsLogic {
return &GetCommentsLogic{
ctx: ctx,
svcCtx: svcCtx,
Logger: logx.WithContext(ctx),
}
}
// 只列出要驗證的資料
type listReq struct {
PostID string `json:"post_id" validate:"required"`
PageSize int64 `json:"page_size" validate:"required"`
PageIndex int64 `json:"page_index" validate:"required"`
}
// 將單個 Post 轉換為 PostDetailItem
func convertToCommentDetailItem(item *model.Comment) *tweeting.CommentDetail {
return &tweeting.CommentDetail{
CommentId: item.ID.Hex(),
Uid: item.UID,
Content: item.Content,
CreatedAt: item.CreateAt,
LikeCount: item.LikeCount,
DislikeCount: item.DisLikeCount,
}
}
// GetComments 查詢評論
// 目前應該是沒有需求是要看 uid 在哪裡留過言,如果未來業務邏輯有再新增
func (l *GetCommentsLogic) GetComments(in *tweeting.GetCommentsReq) (*tweeting.GetCommentsResp, error) {
// 將 PageSize 和 PageIndex 提前轉換為 int64
pageSize := int64(in.GetPageSize())
pageIndex := int64(in.GetPageIndex())
// 驗證資料
if err := l.svcCtx.Validate.ValidateAll(&listReq{
PageSize: pageSize,
PageIndex: pageIndex,
PostID: in.GetPostId(),
}); err != nil {
// 錯誤代碼 05-011-00
return nil, ers.InvalidFormat(err.Error())
}
// 構建查詢條件
query := &model.QueryCommentModelReq{
PostID: in.GetPostId(),
PageSize: pageSize,
PageIndex: pageIndex,
}
// 執行查詢
find, count, err := l.svcCtx.CommentModel.Find(l.ctx, query)
if err != nil {
e := domain.CommentErrorL(
domain.CommentListErrorCode,
logx.WithContext(l.ctx),
[]logx.LogField{
{Key: "query", Value: query},
{Key: "func", Value: "CommentModel.Find"},
{Key: "err", Value: err},
},
"failed to find comment").Wrap(err)
return nil, e
}
// 將查詢結果轉換為 API 回應格式
result := make([]*tweeting.CommentDetail, 0, count)
for _, item := range find {
result = append(result, convertToCommentDetailItem(item))
}
// 返回結果
return &tweeting.GetCommentsResp{
Comments: result,
Page: &tweeting.Pager{
Total: count,
Index: pageIndex,
Size: pageSize,
},
}, nil
}