413 lines
12 KiB
Go
413 lines
12 KiB
Go
package rpc
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import (
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"context"
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"errors"
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"github.com/LoveLosita/smartflow/backend/respond"
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"github.com/LoveLosita/smartflow/backend/services/taskclassforum/rpc/pb"
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forumsv "github.com/LoveLosita/smartflow/backend/services/taskclassforum/sv"
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forumcontracts "github.com/LoveLosita/smartflow/backend/shared/contracts/taskclassforum"
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)
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type Handler struct {
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pb.UnimplementedTaskClassForumServiceServer
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svc *forumsv.Service
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}
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func NewHandler(svc *forumsv.Service) *Handler {
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return &Handler{svc: svc}
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}
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// service 负责统一校验 RPC 层依赖是否已经注入。
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//
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// 职责边界：
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// 1. 只判断 handler 自身和业务 service 是否可用；
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// 2. 不负责校验请求参数，也不处理具体业务规则；
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// 3. 失败时返回可直接转成 gRPC status 的业务错误。
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func (h *Handler) service() (*forumsv.Service, error) {
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if h == nil || h.svc == nil {
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return nil, errors.New("taskclassforum service dependency not initialized")
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}
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return h.svc, nil
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}
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// ListPosts 负责把计划广场列表请求从 gRPC 协议转成内部服务调用。
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func (h *Handler) ListPosts(ctx context.Context, req *pb.ListForumPostsRequest) (*pb.ListForumPostsResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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items, page, err := svc.ListPosts(ctx, req.ActorUserId, int(req.Page), int(req.PageSize), req.Sort, req.Keyword, req.Tag)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.ListForumPostsResponse{
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Items: forumPostBriefsToPB(items),
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Page: forumPageToPB(page),
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}, nil
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}
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func (h *Handler) ListTags(ctx context.Context, req *pb.ListForumTagsRequest) (*pb.ListForumTagsResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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items, err := svc.ListTags(ctx, req.ActorUserId, int(req.Limit))
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.ListForumTagsResponse{Items: forumTagItemsToPB(items)}, nil
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}
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func (h *Handler) CreatePost(ctx context.Context, req *pb.CreateForumPostRequest) (*pb.CreateForumPostResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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post, err := svc.CreatePost(ctx, forumcontracts.CreateForumPostRequest{
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ActorUserID: req.ActorUserId,
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TaskClassID: req.TaskClassId,
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Title: req.Title,
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Summary: req.Summary,
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Tags: append([]string(nil), req.Tags...),
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IdempotencyKey: req.IdempotencyKey,
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})
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.CreateForumPostResponse{Post: forumPostBriefToPB(post)}, nil
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}
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func (h *Handler) GetPost(ctx context.Context, req *pb.GetForumPostRequest) (*pb.GetForumPostResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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data, err := svc.GetPost(ctx, req.ActorUserId, req.PostId)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.GetForumPostResponse{Data: forumPostDetailToPB(data)}, nil
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}
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func (h *Handler) LikePost(ctx context.Context, req *pb.LikeForumPostRequest) (*pb.LikeForumPostResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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counters, viewerState, err := svc.LikePost(ctx, req.ActorUserId, req.PostId)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.LikeForumPostResponse{
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Counters: forumPostCountersToPB(counters),
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ViewerState: forumPostViewerStateToPB(viewerState),
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}, nil
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}
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func (h *Handler) UnlikePost(ctx context.Context, req *pb.UnlikeForumPostRequest) (*pb.UnlikeForumPostResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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counters, viewerState, err := svc.UnlikePost(ctx, req.ActorUserId, req.PostId)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.UnlikeForumPostResponse{
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Counters: forumPostCountersToPB(counters),
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ViewerState: forumPostViewerStateToPB(viewerState),
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}, nil
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}
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func (h *Handler) ListComments(ctx context.Context, req *pb.ListForumCommentsRequest) (*pb.ListForumCommentsResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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items, page, err := svc.ListComments(ctx, req.ActorUserId, req.PostId, int(req.Page), int(req.PageSize), req.Sort)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.ListForumCommentsResponse{
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Items: forumCommentNodesToPB(items),
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Page: forumPageToPB(page),
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}, nil
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}
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func (h *Handler) CreateComment(ctx context.Context, req *pb.CreateForumCommentRequest) (*pb.CreateForumCommentResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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comment, err := svc.CreateComment(ctx, forumcontracts.CreateForumCommentRequest{
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ActorUserID: req.ActorUserId,
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PostID: req.PostId,
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Content: req.Content,
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ParentCommentID: forumUint64PtrFromPositive(req.ParentCommentId),
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IdempotencyKey: req.IdempotencyKey,
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})
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.CreateForumCommentResponse{Comment: forumCommentNodeToPB(comment)}, nil
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}
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func (h *Handler) DeleteComment(ctx context.Context, req *pb.DeleteForumCommentRequest) (*pb.DeleteForumCommentResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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result, err := svc.DeleteComment(ctx, req.ActorUserId, req.CommentId)
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.DeleteForumCommentResponse{
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CommentId: result.CommentID,
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Status: result.Status,
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}, nil
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}
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func (h *Handler) ImportPost(ctx context.Context, req *pb.ImportForumPostRequest) (*pb.ImportForumPostResponse, error) {
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svc, err := h.service()
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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if req == nil {
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return nil, grpcErrorFromServiceError(respond.MissingParam)
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}
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result, err := svc.ImportPost(ctx, forumcontracts.ImportForumPostRequest{
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ActorUserID: req.ActorUserId,
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PostID: req.PostId,
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TargetTitle: req.TargetTitle,
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IdempotencyKey: req.IdempotencyKey,
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})
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if err != nil {
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return nil, grpcErrorFromServiceError(err)
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}
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return &pb.ImportForumPostResponse{
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ImportId: result.ImportID,
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PostId: result.PostID,
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NewTaskClassId: result.NewTaskClassID,
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TaskClassTitle: result.TaskClassTitle,
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ImportCount: result.ImportCount,
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CreatedAt: result.CreatedAt,
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}, nil
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}
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func forumPageToPB(page forumcontracts.PageResult) *pb.PageResponse {
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return &pb.PageResponse{
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Page: int32(page.Page),
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PageSize: int32(page.PageSize),
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Total: int32(page.Total),
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HasMore: page.HasMore,
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}
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}
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func forumUserToPB(user forumcontracts.UserBrief) *pb.UserBrief {
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return &pb.UserBrief{
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UserId: user.UserID,
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Nickname: user.Nickname,
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AvatarUrl: user.AvatarURL,
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}
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}
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func forumTemplateSummaryToPB(summary forumcontracts.TemplateSummary) *pb.TemplateSummary {
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return &pb.TemplateSummary{
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TaskCount: int32(summary.TaskCount),
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Mode: summary.Mode,
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StartDate: summary.StartDate,
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EndDate: summary.EndDate,
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StrategyLabels: append([]string(nil), summary.StrategyLabels...),
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}
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}
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func forumPostCountersToPB(counters forumcontracts.ForumPostCounters) *pb.ForumPostCounters {
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return &pb.ForumPostCounters{
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LikeCount: counters.LikeCount,
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CommentCount: counters.CommentCount,
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ImportCount: counters.ImportCount,
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}
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}
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func forumPostViewerStateToPB(viewerState forumcontracts.ForumPostViewerState) *pb.ForumPostViewerState {
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return &pb.ForumPostViewerState{
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Liked: viewerState.Liked,
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ImportedOnce: viewerState.ImportedOnce,
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}
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}
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func forumPostBriefToPB(post *forumcontracts.ForumPostBrief) *pb.ForumPostBrief {
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if post == nil {
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return nil
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}
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return &pb.ForumPostBrief{
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PostId: post.PostID,
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Title: post.Title,
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Summary: post.Summary,
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Tags: append([]string(nil), post.Tags...),
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Author: forumUserToPB(post.Author),
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TemplateSummary: forumTemplateSummaryToPB(post.TemplateSummary),
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Counters: forumPostCountersToPB(post.Counters),
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ViewerState: forumPostViewerStateToPB(post.ViewerState),
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Status: post.Status,
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CreatedAt: post.CreatedAt,
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}
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}
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func forumPostBriefsToPB(items []forumcontracts.ForumPostBrief) []*pb.ForumPostBrief {
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if len(items) == 0 {
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return nil
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}
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result := make([]*pb.ForumPostBrief, 0, len(items))
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for i := range items {
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item := items[i]
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result = append(result, forumPostBriefToPB(&item))
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}
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return result
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}
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func forumTemplateItemPreviewToPB(item forumcontracts.TemplateItemPreview) *pb.TemplateItemPreview {
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return &pb.TemplateItemPreview{
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ItemId: item.ItemID,
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Order: int32(item.Order),
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Content: item.Content,
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}
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}
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func forumTemplateDetailToPB(detail forumcontracts.TemplateDetail) *pb.TemplateDetail {
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preview := make([]*pb.TemplateItemPreview, 0, len(detail.ItemsPreview))
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for i := range detail.ItemsPreview {
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item := detail.ItemsPreview[i]
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preview = append(preview, forumTemplateItemPreviewToPB(item))
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}
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return &pb.TemplateDetail{
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Mode: detail.Mode,
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StartDate: detail.StartDate,
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EndDate: detail.EndDate,
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StrategyLabels: append([]string(nil), detail.StrategyLabels...),
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TaskCount: int32(detail.TaskCount),
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ItemsPreview: preview,
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}
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}
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func forumPostDetailToPB(detail *forumcontracts.ForumPostDetail) *pb.ForumPostDetail {
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if detail == nil {
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return nil
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}
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return &pb.ForumPostDetail{
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Post: forumPostBriefToPB(&detail.Post),
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Template: forumTemplateDetailToPB(detail.Template),
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}
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}
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func forumTagItemsToPB(items []forumcontracts.ForumTagItem) []*pb.ForumTagItem {
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if len(items) == 0 {
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return nil
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}
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result := make([]*pb.ForumTagItem, 0, len(items))
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for i := range items {
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item := items[i]
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result = append(result, &pb.ForumTagItem{
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Tag: item.Tag,
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PostCount: int32(item.PostCount),
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})
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}
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return result
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}
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func forumCommentNodeToPB(node *forumcontracts.ForumCommentNode) *pb.ForumCommentNode {
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if node == nil {
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return nil
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}
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children := make([]*pb.ForumCommentNode, 0, len(node.Children))
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for i := range node.Children {
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child := node.Children[i]
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children = append(children, forumCommentNodeToPB(&child))
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}
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return &pb.ForumCommentNode{
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CommentId: node.CommentID,
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PostId: node.PostID,
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ParentCommentId: forumUint64FromPtr(node.ParentCommentID),
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Content: node.Content,
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Status: node.Status,
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Author: forumUserToPB(node.Author),
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CanDelete: node.CanDelete,
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CreatedAt: node.CreatedAt,
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DeletedAt: forumStringFromPtr(node.DeletedAt),
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Children: children,
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}
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}
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func forumCommentNodesToPB(items []forumcontracts.ForumCommentNode) []*pb.ForumCommentNode {
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if len(items) == 0 {
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return nil
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}
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result := make([]*pb.ForumCommentNode, 0, len(items))
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for i := range items {
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item := items[i]
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result = append(result, forumCommentNodeToPB(&item))
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}
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return result
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}
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func forumUint64FromPtr(value *uint64) uint64 {
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if value == nil {
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return 0
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}
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return *value
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}
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func forumUint64PtrFromPositive(value uint64) *uint64 {
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if value == 0 {
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return nil
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}
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result := value
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return &result
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}
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func forumStringFromPtr(value *string) string {
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if value == nil {
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return ""
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}
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return *value
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}
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