feat: 接入计划广场后端主链路

2026-05-04 20:38:49 +08:00
parent 786c8925a0
commit 46874f0806
22 changed files with 3439 additions and 104 deletions
--- a/backend/gateway/taskclassforum/client.go
+++ b/backend/gateway/taskclassforum/client.go
@@ -0,0 +1,470 @@
+package taskclassforum
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"time"
+
+	"github.com/LoveLosita/smartflow/backend/services/taskclassforum/rpc/pb"
+	contracts "github.com/LoveLosita/smartflow/backend/shared/contracts/taskclassforum"
+	"github.com/zeromicro/go-zero/zrpc"
+)
+
+const (
+	defaultEndpoint = "127.0.0.1:9082"
+	defaultTimeout  = 2 * time.Second
+)
+
+type ClientConfig struct {
+	Endpoints []string
+	Target    string
+	Timeout   time.Duration
+}
+
+// Client 是 gateway 侧访问计划广场 zrpc 的适配层。
+//
+// 职责边界：
+// 1. 只负责 HTTP gateway 与 taskclassforum zrpc 之间的协议转译；
+// 2. 不直连 forum_* 表，也不读取旧 TaskClass 表，所有业务规则交给 taskclassforum 服务；
+// 3. gRPC 业务错误会在这里反解回 respond.Response，便于 HTTP 层统一返回。
+type Client struct {
+	rpc pb.TaskClassForumServiceClient
+}
+
+func NewClient(cfg ClientConfig) (*Client, error) {
+	timeout := cfg.Timeout
+	if timeout <= 0 {
+		timeout = defaultTimeout
+	}
+	endpoints := normalizeEndpoints(cfg.Endpoints)
+	target := strings.TrimSpace(cfg.Target)
+	if len(endpoints) == 0 && target == "" {
+		endpoints = []string{defaultEndpoint}
+	}
+
+	zclient, err := zrpc.NewClient(zrpc.RpcClientConf{
+		Endpoints: endpoints,
+		Target:    target,
+		NonBlock:  true,
+		Timeout:   int64(timeout / time.Millisecond),
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &Client{rpc: pb.NewTaskClassForumServiceClient(zclient.Conn())}, nil
+}
+
+func (c *Client) ListPosts(ctx context.Context, actorUserID uint64, page int, pageSize int, sort string, keyword string, tag string) ([]contracts.ForumPostBrief, contracts.PageResult, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, contracts.PageResult{}, err
+	}
+	resp, err := c.rpc.ListPosts(ctx, &pb.ListForumPostsRequest{
+		ActorUserId: actorUserID,
+		Page:        int32(page),
+		PageSize:    int32(pageSize),
+		Sort:        sort,
+		Keyword:     keyword,
+		Tag:         tag,
+	})
+	if err != nil {
+		return nil, contracts.PageResult{}, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, contracts.PageResult{}, errors.New("taskclassforum zrpc service returned empty list posts response")
+	}
+	return forumPostBriefsFromPB(resp.Items), pageFromPB(resp.Page), nil
+}
+
+func (c *Client) ListTags(ctx context.Context, actorUserID uint64, limit int) ([]contracts.ForumTagItem, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.ListTags(ctx, &pb.ListForumTagsRequest{
+		ActorUserId: actorUserID,
+		Limit:       int32(limit),
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty list tags response")
+	}
+	return forumTagItemsFromPB(resp.Items), nil
+}
+
+func (c *Client) CreatePost(ctx context.Context, req contracts.CreateForumPostRequest) (*contracts.ForumPostBrief, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.CreatePost(ctx, &pb.CreateForumPostRequest{
+		ActorUserId:    req.ActorUserID,
+		TaskClassId:    req.TaskClassID,
+		Title:          req.Title,
+		Summary:        req.Summary,
+		Tags:           append([]string(nil), req.Tags...),
+		IdempotencyKey: req.IdempotencyKey,
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty create post response")
+	}
+	post := forumPostBriefFromPB(resp.Post)
+	return &post, nil
+}
+
+func (c *Client) GetPost(ctx context.Context, actorUserID uint64, postID uint64) (*contracts.ForumPostDetail, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.GetPost(ctx, &pb.GetForumPostRequest{
+		ActorUserId: actorUserID,
+		PostId:      postID,
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty get post response")
+	}
+	data := forumPostDetailFromPB(resp.Data)
+	return &data, nil
+}
+
+func (c *Client) LikePost(ctx context.Context, actorUserID uint64, postID uint64) (contracts.ForumPostCounters, contracts.ForumPostViewerState, error) {
+	if err := c.ensureReady(); err != nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, err
+	}
+	resp, err := c.rpc.LikePost(ctx, &pb.LikeForumPostRequest{
+		ActorUserId: actorUserID,
+		PostId:      postID,
+	})
+	if err != nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, errors.New("taskclassforum zrpc service returned empty like response")
+	}
+	return forumPostCountersFromPB(resp.Counters), forumPostViewerStateFromPB(resp.ViewerState), nil
+}
+
+func (c *Client) UnlikePost(ctx context.Context, actorUserID uint64, postID uint64) (contracts.ForumPostCounters, contracts.ForumPostViewerState, error) {
+	if err := c.ensureReady(); err != nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, err
+	}
+	resp, err := c.rpc.UnlikePost(ctx, &pb.UnlikeForumPostRequest{
+		ActorUserId: actorUserID,
+		PostId:      postID,
+	})
+	if err != nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return contracts.ForumPostCounters{}, contracts.ForumPostViewerState{}, errors.New("taskclassforum zrpc service returned empty unlike response")
+	}
+	return forumPostCountersFromPB(resp.Counters), forumPostViewerStateFromPB(resp.ViewerState), nil
+}
+
+func (c *Client) ListComments(ctx context.Context, actorUserID uint64, postID uint64, page int, pageSize int, sort string) ([]contracts.ForumCommentNode, contracts.PageResult, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, contracts.PageResult{}, err
+	}
+	resp, err := c.rpc.ListComments(ctx, &pb.ListForumCommentsRequest{
+		ActorUserId: actorUserID,
+		PostId:      postID,
+		Page:        int32(page),
+		PageSize:    int32(pageSize),
+		Sort:        sort,
+	})
+	if err != nil {
+		return nil, contracts.PageResult{}, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, contracts.PageResult{}, errors.New("taskclassforum zrpc service returned empty list comments response")
+	}
+	return forumCommentNodesFromPB(resp.Items), pageFromPB(resp.Page), nil
+}
+
+func (c *Client) CreateComment(ctx context.Context, req contracts.CreateForumCommentRequest) (*contracts.ForumCommentNode, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.CreateComment(ctx, &pb.CreateForumCommentRequest{
+		ActorUserId:     req.ActorUserID,
+		PostId:          req.PostID,
+		Content:         req.Content,
+		ParentCommentId: uint64FromPtr(req.ParentCommentID),
+		IdempotencyKey:  req.IdempotencyKey,
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty create comment response")
+	}
+	comment := forumCommentNodeFromPB(resp.Comment)
+	return &comment, nil
+}
+
+func (c *Client) DeleteComment(ctx context.Context, actorUserID uint64, commentID uint64) (*contracts.DeleteForumCommentResult, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.DeleteComment(ctx, &pb.DeleteForumCommentRequest{
+		ActorUserId: actorUserID,
+		CommentId:   commentID,
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty delete comment response")
+	}
+	deletedAt := time.Now().Format(time.RFC3339)
+	return &contracts.DeleteForumCommentResult{
+		CommentID: resp.CommentId,
+		Status:    resp.Status,
+		Content:   "",
+		DeletedAt: &deletedAt,
+	}, nil
+}
+
+func (c *Client) ImportPost(ctx context.Context, req contracts.ImportForumPostRequest) (*contracts.ImportForumPostResult, error) {
+	if err := c.ensureReady(); err != nil {
+		return nil, err
+	}
+	resp, err := c.rpc.ImportPost(ctx, &pb.ImportForumPostRequest{
+		ActorUserId:    req.ActorUserID,
+		PostId:         req.PostID,
+		TargetTitle:    req.TargetTitle,
+		IdempotencyKey: req.IdempotencyKey,
+	})
+	if err != nil {
+		return nil, responseFromRPCError(err)
+	}
+	if resp == nil {
+		return nil, errors.New("taskclassforum zrpc service returned empty import post response")
+	}
+	return &contracts.ImportForumPostResult{
+		ImportID:       resp.ImportId,
+		PostID:         resp.PostId,
+		NewTaskClassID: resp.NewTaskClassId,
+		TaskClassTitle: resp.TaskClassTitle,
+		ImportCount:    resp.ImportCount,
+		CreatedAt:      resp.CreatedAt,
+	}, nil
+}
+
+func (c *Client) ensureReady() error {
+	if c == nil || c.rpc == nil {
+		return errors.New("taskclassforum zrpc client is not initialized")
+	}
+	return nil
+}
+
+func normalizeEndpoints(values []string) []string {
+	endpoints := make([]string, 0, len(values))
+	for _, value := range values {
+		trimmed := strings.TrimSpace(value)
+		if trimmed != "" {
+			endpoints = append(endpoints, trimmed)
+		}
+	}
+	return endpoints
+}
+
+func pageFromPB(page *pb.PageResponse) contracts.PageResult {
+	if page == nil {
+		return contracts.PageResult{}
+	}
+	return contracts.PageResult{
+		Page:     int(page.Page),
+		PageSize: int(page.PageSize),
+		Total:    int(page.Total),
+		HasMore:  page.HasMore,
+	}
+}
+
+func forumUserFromPB(user *pb.UserBrief) contracts.UserBrief {
+	if user == nil {
+		return contracts.UserBrief{}
+	}
+	return contracts.UserBrief{
+		UserID:    user.UserId,
+		Nickname:  user.Nickname,
+		AvatarURL: user.AvatarUrl,
+	}
+}
+
+func forumTemplateSummaryFromPB(summary *pb.TemplateSummary) contracts.TemplateSummary {
+	if summary == nil {
+		return contracts.TemplateSummary{}
+	}
+	return contracts.TemplateSummary{
+		TaskCount:      int(summary.TaskCount),
+		Mode:           summary.Mode,
+		StartDate:      summary.StartDate,
+		EndDate:        summary.EndDate,
+		StrategyLabels: append([]string(nil), summary.StrategyLabels...),
+	}
+}
+
+func forumPostCountersFromPB(counters *pb.ForumPostCounters) contracts.ForumPostCounters {
+	if counters == nil {
+		return contracts.ForumPostCounters{}
+	}
+	return contracts.ForumPostCounters{
+		LikeCount:    counters.LikeCount,
+		CommentCount: counters.CommentCount,
+		ImportCount:  counters.ImportCount,
+	}
+}
+
+func forumPostViewerStateFromPB(state *pb.ForumPostViewerState) contracts.ForumPostViewerState {
+	if state == nil {
+		return contracts.ForumPostViewerState{}
+	}
+	return contracts.ForumPostViewerState{
+		Liked:        state.Liked,
+		ImportedOnce: state.ImportedOnce,
+	}
+}
+
+func forumPostBriefFromPB(post *pb.ForumPostBrief) contracts.ForumPostBrief {
+	if post == nil {
+		return contracts.ForumPostBrief{}
+	}
+	return contracts.ForumPostBrief{
+		PostID:          post.PostId,
+		Title:           post.Title,
+		Summary:         post.Summary,
+		Tags:            append([]string(nil), post.Tags...),
+		Author:          forumUserFromPB(post.Author),
+		TemplateSummary: forumTemplateSummaryFromPB(post.TemplateSummary),
+		Counters:        forumPostCountersFromPB(post.Counters),
+		ViewerState:     forumPostViewerStateFromPB(post.ViewerState),
+		Status:          post.Status,
+		CreatedAt:       post.CreatedAt,
+	}
+}
+
+func forumPostBriefsFromPB(items []*pb.ForumPostBrief) []contracts.ForumPostBrief {
+	if len(items) == 0 {
+		return []contracts.ForumPostBrief{}
+	}
+	result := make([]contracts.ForumPostBrief, 0, len(items))
+	for _, item := range items {
+		result = append(result, forumPostBriefFromPB(item))
+	}
+	return result
+}
+
+func forumTemplateDetailFromPB(detail *pb.TemplateDetail) contracts.TemplateDetail {
+	if detail == nil {
+		return contracts.TemplateDetail{}
+	}
+	items := make([]contracts.TemplateItemPreview, 0, len(detail.ItemsPreview))
+	for _, item := range detail.ItemsPreview {
+		if item == nil {
+			continue
+		}
+		items = append(items, contracts.TemplateItemPreview{
+			ItemID:  item.ItemId,
+			Order:   int(item.Order),
+			Content: item.Content,
+		})
+	}
+	return contracts.TemplateDetail{
+		Mode:           detail.Mode,
+		StartDate:      detail.StartDate,
+		EndDate:        detail.EndDate,
+		StrategyLabels: append([]string(nil), detail.StrategyLabels...),
+		TaskCount:      int(detail.TaskCount),
+		ItemsPreview:   items,
+	}
+}
+
+func forumPostDetailFromPB(detail *pb.ForumPostDetail) contracts.ForumPostDetail {
+	if detail == nil {
+		return contracts.ForumPostDetail{}
+	}
+	return contracts.ForumPostDetail{
+		Post:     forumPostBriefFromPB(detail.Post),
+		Template: forumTemplateDetailFromPB(detail.Template),
+	}
+}
+
+func forumTagItemsFromPB(items []*pb.ForumTagItem) []contracts.ForumTagItem {
+	if len(items) == 0 {
+		return []contracts.ForumTagItem{}
+	}
+	result := make([]contracts.ForumTagItem, 0, len(items))
+	for _, item := range items {
+		if item == nil {
+			continue
+		}
+		result = append(result, contracts.ForumTagItem{
+			Tag:       item.Tag,
+			PostCount: int(item.PostCount),
+		})
+	}
+	return result
+}
+
+func forumCommentNodeFromPB(node *pb.ForumCommentNode) contracts.ForumCommentNode {
+	if node == nil {
+		return contracts.ForumCommentNode{}
+	}
+	children := make([]contracts.ForumCommentNode, 0, len(node.Children))
+	for _, child := range node.Children {
+		children = append(children, forumCommentNodeFromPB(child))
+	}
+	return contracts.ForumCommentNode{
+		CommentID:       node.CommentId,
+		PostID:          node.PostId,
+		ParentCommentID: uint64PtrFromPositive(node.ParentCommentId),
+		Content:         node.Content,
+		Status:          node.Status,
+		Author:          forumUserFromPB(node.Author),
+		CanDelete:       node.CanDelete,
+		CreatedAt:       node.CreatedAt,
+		DeletedAt:       stringPtrFromNonEmpty(node.DeletedAt),
+		Children:        children,
+	}
+}
+
+func forumCommentNodesFromPB(items []*pb.ForumCommentNode) []contracts.ForumCommentNode {
+	if len(items) == 0 {
+		return []contracts.ForumCommentNode{}
+	}
+	result := make([]contracts.ForumCommentNode, 0, len(items))
+	for _, item := range items {
+		result = append(result, forumCommentNodeFromPB(item))
+	}
+	return result
+}
+
+func uint64FromPtr(value *uint64) uint64 {
+	if value == nil {
+		return 0
+	}
+	return *value
+}
+
+func uint64PtrFromPositive(value uint64) *uint64 {
+	if value == 0 {
+		return nil
+	}
+	result := value
+	return &result
+}
+
+func stringPtrFromNonEmpty(value string) *string {
+	trimmed := strings.TrimSpace(value)
+	if trimmed == "" {
+		return nil
+	}
+	return &trimmed
+}
--- a/backend/gateway/taskclassforum/errors.go
+++ b/backend/gateway/taskclassforum/errors.go
@@ -0,0 +1,94 @@
+package taskclassforum
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/LoveLosita/smartflow/backend/respond"
+	"google.golang.org/genproto/googleapis/rpc/errdetails"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+// responseFromRPCError 把计划广场 zrpc 错误恢复成 HTTP 层可处理的业务错误。
+//
+// 职责边界：
+// 1. 优先读取 taskclassforum RPC 写入的 ErrorInfo，恢复 respond.Response；
+// 2. 对网络、超时、服务不可用等非业务错误保留为普通 error，让 HTTP 层按 500 处理；
+// 3. 暂不复用 userauth/errors.go，因为 user/auth 还承担历史 legacy code 兼容，计划广场只消费新 ErrorInfo 协议。
+func responseFromRPCError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	st, ok := status.FromError(err)
+	if !ok {
+		return wrapRPCError(err)
+	}
+	if resp, ok := responseFromStatusDetails(st); ok {
+		return resp
+	}
+
+	switch st.Code() {
+	case codes.Internal, codes.Unknown, codes.Unavailable, codes.DeadlineExceeded, codes.DataLoss, codes.Unimplemented:
+		msg := strings.TrimSpace(st.Message())
+		if msg == "" {
+			msg = "taskclassforum zrpc service internal error"
+		}
+		return wrapRPCError(errors.New(msg))
+	case codes.NotFound:
+		return responseWithFallback(st, respond.UserTaskClassNotFound)
+	case codes.PermissionDenied, codes.Unauthenticated:
+		return responseWithFallback(st, respond.ErrUnauthorized)
+	case codes.InvalidArgument:
+		return responseWithFallback(st, respond.MissingParam)
+	}
+
+	msg := strings.TrimSpace(st.Message())
+	if msg == "" {
+		msg = "taskclassforum zrpc service rejected request"
+	}
+	return respond.Response{Status: "400", Info: msg}
+}
+
+func responseFromStatusDetails(st *status.Status) (respond.Response, bool) {
+	if st == nil {
+		return respond.Response{}, false
+	}
+	for _, detail := range st.Details() {
+		info, ok := detail.(*errdetails.ErrorInfo)
+		if !ok {
+			continue
+		}
+
+		statusValue := strings.TrimSpace(info.Reason)
+		if statusValue == "" {
+			return respond.Response{}, false
+		}
+		message := strings.TrimSpace(st.Message())
+		if message == "" && info.Metadata != nil {
+			message = strings.TrimSpace(info.Metadata["info"])
+		}
+		if message == "" {
+			message = statusValue
+		}
+		return respond.Response{Status: statusValue, Info: message}, true
+	}
+	return respond.Response{}, false
+}
+
+func responseWithFallback(st *status.Status, fallback respond.Response) respond.Response {
+	msg := strings.TrimSpace(st.Message())
+	if msg == "" {
+		msg = fallback.Info
+	}
+	return respond.Response{Status: fallback.Status, Info: msg}
+}
+
+func wrapRPCError(err error) error {
+	if err == nil {
+		return nil
+	}
+	return fmt.Errorf("调用 taskclassforum zrpc 服务失败: %w", err)
+}