feat(api): add Lovart-style project and agent thread endpoints

Add canva/canda-compatible routes for lightweight project open/save and agent thread history: - POST /canva/project/queryProject, saveProject - POST /canva/agent/queryAgentLastThread, agentThreadList - GET /canda/chat-history, /canda/thread/status Canvas save now accepts a compressed SHAKKERDATA:// snapshot payload, preserves connections, and returns a SaveProject response; blank successful image nodes are backfilled from generated artifacts. Frontend designGateway adopts the new save/query flow. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-08 19:10:08 +08:00
parent ada29cee12
commit 263748af4a
27 changed files with 2045 additions and 114 deletions
@@ -0,0 +1,114 @@
+// Code scaffolded by goctl. Safe to edit.
+// goctl 1.10.1
+
+package logic
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"img_infinite_canvas/internal/domain/design"
+	"img_infinite_canvas/internal/svc"
+	"img_infinite_canvas/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+const lovartProjectType int64 = 6
+
+type QueryProjectLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewQueryProjectLogic(ctx context.Context, svcCtx *svc.ServiceContext) *QueryProjectLogic {
+	return &QueryProjectLogic{
+		Logger: logx.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+func (l *QueryProjectLogic) QueryProject(req *types.QueryProjectRequest) (resp *types.QueryProjectResponse, err error) {
+	project, err := l.svcCtx.DesignService.GetProject(l.ctx, req.ProjectId)
+	if err != nil {
+		return nil, err
+	}
+
+	return toQueryProjectResponse(project), nil
+}
+
+func toQueryProjectResponse(project design.Project) *types.QueryProjectResponse {
+	covers := queryProjectCoverList(project)
+	updatedAt := formatLovartTime(project.UpdatedAt)
+	return &types.QueryProjectResponse{
+		Code: 0,
+		Msg:  nil,
+		Data: types.QueryProjectData{
+			AssetMeta: types.QueryProjectAssetMeta{
+				AssetId:     project.ID,
+				ProjectId:   project.ID,
+				Name:        project.Title,
+				ProjectType: lovartProjectType,
+				ContentType: "PROJECT_LOVART_V2",
+				OwnerType:   "USER",
+				OwnerId:     project.UserID,
+				Extra: types.QueryProjectExtra{
+					PicCount:         int64(len(covers)),
+					ProjectCoverList: covers,
+				},
+				Meta: types.QueryProjectMeta{
+					UniqId:       project.SnapshotID,
+					ParentUniqId: "",
+				},
+				EffectivePermission: "OWNER",
+				CopyTaskStatus:      nil,
+				Visibility:          "PRIVATE",
+				CreateTime:          updatedAt,
+				UpdateTime:          updatedAt,
+			},
+			UserId:         project.UserID,
+			ProjectName:    project.Title,
+			ProjectId:      nil,
+			Canvas:         project.Canvas,
+			ValidProjectId: true,
+			ProjectType:    lovartProjectType,
+			Version:        project.Version,
+			SnapshotId:     nil,
+			ItemId:         nil,
+			Permission:     "OWNER",
+		},
+	}
+}
+
+func queryProjectCoverList(project design.Project) []string {
+	seen := make(map[string]bool)
+	covers := make([]string, 0, 4)
+	add := func(value string) {
+		value = strings.TrimSpace(value)
+		if value == "" || strings.HasPrefix(value, "data:") || strings.HasPrefix(value, "blob:") || seen[value] {
+			return
+		}
+		seen[value] = true
+		covers = append(covers, value)
+	}
+	add(project.Thumbnail)
+	for _, node := range project.Nodes {
+		if len(covers) >= 12 {
+			break
+		}
+		if (node.Type == design.NodeTypeImage || node.Type == design.NodeTypeFrame) && node.Status == "success" {
+			add(node.Content)
+		}
+	}
+	return covers
+}
+
+func formatLovartTime(value time.Time) string {
+	if value.IsZero() {
+		value = time.Now()
+	}
+	return value.Format("2006-01-02T15:04:05")
+}