| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "sort" |
| 6 | "strings" |
| 7 | |
| 8 | "reasonix/internal/sessioncatalog" |
| 9 | ) |
| 10 | |
| 11 | func (a *App) metadataTopicPage(req ProjectTopicPageRequest) (ProjectTopicPage, error) { |
| 12 | var items []ProjectNode |
| 13 | if req.metadataSnapshot != nil { |
| 14 | items = cloneTopicPage(*req.metadataSnapshot) |
| 15 | } else { |
| 16 | items = a.metadataProjectTopics(req.Scope, req.WorkspaceRoot) |
| 17 | } |
| 18 | filteredByGroup := items[:0] |
| 19 | for _, item := range items { |
| 20 | if projectTopicRequestAllows(req, item.TopicID, item.Pinned) && projectNodeRequestAllows(req, item) { |
| 21 | filteredByGroup = append(filteredByGroup, item) |
| 22 | } |
| 23 | } |
| 24 | items = filteredByGroup |
| 25 | manualOrder := manualTopicOrderFor(req.Scope, req.WorkspaceRoot) |
| 26 | if req.readAllSources { |
| 27 | manualOrder = false |
| 28 | } |
| 29 | query := strings.ToLower(strings.TrimSpace(req.Query)) |
| 30 | if query != "" { |
| 31 | filtered := items[:0] |
| 32 | for _, item := range items { |
| 33 | if strings.Contains(strings.ToLower(item.Label), query) { |
| 34 | filtered = append(filtered, item) |
| 35 | } |
| 36 | } |
| 37 | items = filtered |
| 38 | } |
| 39 | sort.SliceStable(items, func(i, j int) bool { |
| 40 | return projectTopicLess(items[i], items[j], req.SortMode, manualOrder) |
| 41 | }) |
| 42 | start := 0 |
| 43 | if lastID, ok := strings.CutPrefix(req.Cursor, "meta:"); ok { |
| 44 | if req.groupCursorBind != "" { |
| 45 | return ProjectTopicPage{Items: []ProjectNode{}}, fmt.Errorf("project topic cursor filter changed") |
| 46 | } |
| 47 | for index, item := range items { |
| 48 | if item.TopicID == lastID { |
| 49 | start = index + 1 |
| 50 | break |
| 51 | } |
| 52 | } |
| 53 | } else if strings.TrimSpace(req.Cursor) != "" { |
| 54 | start = len(items) |
| 55 | for index, item := range items { |
| 56 | var after bool |
| 57 | var err error |
| 58 | if manualOrder { |
| 59 | after, err = sessioncatalog.TopicSortKeyAfterOrderedCursorBound( |
| 60 | req.Cursor, req.groupCursorBind, item.Pinned, item.SortOrder, |
| 61 | projectTopicSortValue(item.CreatedAt, item.LastActivityAt, req.SortMode), item.TopicID, |
| 62 | ) |
| 63 | } else { |
| 64 | after, err = sessioncatalog.TopicSortKeyAfterCursorBound( |
| 65 | req.Cursor, req.groupCursorBind, item.Pinned, |
| 66 | projectTopicSortValue(item.CreatedAt, item.LastActivityAt, req.SortMode), item.TopicID, |
| 67 | ) |
| 68 | } |
| 69 | if err != nil { |
| 70 | return ProjectTopicPage{Items: []ProjectNode{}}, err |
| 71 | } |
| 72 | if after { |
| 73 | start = index |
| 74 | break |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | limit := req.Limit |
| 79 | if limit <= 0 { |
| 80 | limit = sessioncatalog.DefaultLimit |
| 81 | } |
| 82 | if limit > sessioncatalog.MaxLimit { |
| 83 | limit = sessioncatalog.MaxLimit |
| 84 | } |
| 85 | end := min(start+limit, len(items)) |
| 86 | page := ProjectTopicPage{Items: append([]ProjectNode(nil), items[start:end]...)} |
| 87 | if end < len(items) && end > start { |
| 88 | page.NextCursor = encodeProjectNodeCursor(items[end-1], req.SortMode, manualOrder, req.groupCursorBind) |
| 89 | } |
| 90 | return page, nil |
| 91 | } |
| 92 |