| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "reasonix/internal/sessioncatalog" |
| 6 | "sort" |
| 7 | "strconv" |
| 8 | "strings" |
| 9 | ) |
| 10 | |
| 11 | func (a *App) catalogSessionOrderedPage(catalog *sessioncatalog.Catalog, req ProjectTopicPageRequest) (ProjectTopicPage, error) { |
| 12 | out := ProjectTopicPage{Items: []ProjectNode{}} |
| 13 | topicOverlays, sessionOverlays := a.catalogRuntimeOverlays() |
| 14 | ctx, cancel := a.catalogReadContext() |
| 15 | defer cancel() |
| 16 | if req.readContext != nil { |
| 17 | ctx = req.readContext |
| 18 | } |
| 19 | preferred, _ := catalog.PreferredOrdinarySessionPaths(ctx, req.Scope, req.WorkspaceRoot) |
| 20 | cursor := "" |
| 21 | for { |
| 22 | page, err := catalog.ListTopics(ctx, sessioncatalog.TopicPageRequest{ |
| 23 | Scope: req.Scope, WorkspaceRoot: req.WorkspaceRoot, Cursor: cursor, |
| 24 | Limit: sessioncatalog.MaxLimit, Query: req.Query, TimeFilter: req.TimeFilter, SortMode: req.SortMode, |
| 25 | ManualOrder: false, IncludeTopicIDsJSON: req.groupIncludeJSON, |
| 26 | ExcludeTopicIDsJSON: req.groupExcludeJSON, ExcludePinned: req.ExcludePinned, |
| 27 | CursorBinding: req.groupCursorBind, |
| 28 | }) |
| 29 | if err != nil { |
| 30 | return out, err |
| 31 | } |
| 32 | out.Revision = max(out.Revision, page.Revision) |
| 33 | for _, topic := range page.Items { |
| 34 | for _, node := range a.projectNodesFromCatalogTopic(topic, topicOverlays, sessionOverlays, preferred) { |
| 35 | if projectNodeRequestAllows(req, node) { |
| 36 | out.Items = append(out.Items, node) |
| 37 | } |
| 38 | } |
| 39 | } |
| 40 | if page.NextCursor == "" { |
| 41 | break |
| 42 | } |
| 43 | if page.NextCursor == cursor { |
| 44 | return ProjectTopicPage{Items: []ProjectNode{}}, fmt.Errorf("catalog session-order cursor did not advance") |
| 45 | } |
| 46 | cursor = page.NextCursor |
| 47 | } |
| 48 | sort.SliceStable(out.Items, func(i, j int) bool { |
| 49 | return projectTopicLess(out.Items[i], out.Items[j], req.SortMode, true) |
| 50 | }) |
| 51 | offset := 0 |
| 52 | if strings.TrimSpace(req.Cursor) != "" { |
| 53 | var err error |
| 54 | if !strings.HasPrefix(req.Cursor, "session-order:") { |
| 55 | return ProjectTopicPage{Items: []ProjectNode{}}, fmt.Errorf("session order cursor is stale") |
| 56 | } |
| 57 | offset, err = strconv.Atoi(strings.TrimPrefix(req.Cursor, "session-order:")) |
| 58 | if err != nil || offset < 0 || offset > len(out.Items) { |
| 59 | return ProjectTopicPage{Items: []ProjectNode{}}, fmt.Errorf("invalid session order cursor") |
| 60 | } |
| 61 | } |
| 62 | limit := req.Limit |
| 63 | if limit <= 0 { |
| 64 | limit = sessioncatalog.DefaultLimit |
| 65 | } |
| 66 | limit = min(limit, sessioncatalog.MaxLimit) |
| 67 | end := min(offset+limit, len(out.Items)) |
| 68 | page := ProjectTopicPage{Items: append([]ProjectNode(nil), out.Items[offset:end]...), Revision: out.Revision} |
| 69 | if end < len(out.Items) { |
| 70 | page.NextCursor = "session-order:" + strconv.Itoa(end) |
| 71 | } |
| 72 | return page, nil |
| 73 | } |
| 74 |