| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "log/slog" |
| 7 | "os" |
| 8 | "path/filepath" |
| 9 | "reflect" |
| 10 | "sort" |
| 11 | "time" |
| 12 | |
| 13 | "reasonix/desktop/internal/workspacestate" |
| 14 | "reasonix/internal/historywork" |
| 15 | "reasonix/internal/session" |
| 16 | ) |
| 17 | |
| 18 | type historicalCatalogEntry struct { |
| 19 | scope string |
| 20 | node ProjectNode |
| 21 | sourceChanged bool |
| 22 | } |
| 23 | |
| 24 | // Discovery repairs incomplete adoption before publishing metadata. Ordinary |
| 25 | // pagination never visits source directories or replays a historical log. |
| 26 | func (a *App) requestHistoricalCatalog() { |
| 27 | a.requestHistoricalCatalogWithContext(a.bootContext()) |
| 28 | } |
| 29 | |
| 30 | // requestHistoricalCatalogWithContext lets lifecycle owners pass the context |
| 31 | // that already governs their worker. Background catalog callbacks must not |
| 32 | // reread App.ctx while tests or the shell are replacing that field. |
| 33 | func (a *App) requestHistoricalCatalogWithContext(baseCtx context.Context) { |
| 34 | c := &a.historicalImports |
| 35 | c.mu.Lock() |
| 36 | c.initialize(baseCtx) |
| 37 | if !c.catalogEnabled || c.stopped || a.shuttingDown.Load() || c.discoveryPending || time.Since(c.catalogAt) < 5*time.Minute { |
| 38 | c.mu.Unlock() |
| 39 | return |
| 40 | } |
| 41 | c.discoveryPending = true |
| 42 | ctx := c.ctx |
| 43 | c.workers.Add(1) |
| 44 | c.mu.Unlock() |
| 45 | go func() { |
| 46 | defer c.workers.Done() |
| 47 | defer func() { |
| 48 | c.mu.Lock() |
| 49 | c.discoveryPending = false |
| 50 | c.mu.Unlock() |
| 51 | }() |
| 52 | if _, err := a.discoverHistoricalSessions(ctx, false); err != nil && !errors.Is(err, context.Canceled) { |
| 53 | slog.Warn("desktop: historical catalog discovery incomplete") |
| 54 | } |
| 55 | }() |
| 56 | } |
| 57 | |
| 58 | func (a *App) listHistoricalSessions(ctx context.Context) (HistoricalImportStatus, error) { |
| 59 | return a.discoverHistoricalSessions(ctx, true) |
| 60 | } |
| 61 | |
| 62 | func (a *App) discoverHistoricalSessions(ctx context.Context, includeLegacy bool) (HistoricalImportStatus, error) { |
| 63 | c := &a.historicalImports |
| 64 | c.discoveryMu.Lock() |
| 65 | defer c.discoveryMu.Unlock() |
| 66 | // Failed reads also settle the refresh interval. Otherwise a renderer read |
| 67 | // can immediately re-admit the same failed discovery. |
| 68 | defer c.finishCatalogRefresh() |
| 69 | state, err := a.workspaceRegistry().Load(ctx) |
| 70 | if err != nil { |
| 71 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, err |
| 72 | } |
| 73 | c.mu.Lock() |
| 74 | positions := make(map[string]int, len(c.catalog)) |
| 75 | for i, entry := range c.catalog { |
| 76 | positions[entry.node.Key] = i |
| 77 | } |
| 78 | c.mu.Unlock() |
| 79 | publish := a.historicalCatalogPublisher(ctx, positions) |
| 80 | sources := map[string]historicalSource{} |
| 81 | add := func(path, format, scope, root, head string) { |
| 82 | key := desktopSourceKey(path, head) |
| 83 | sources[key] = historicalSource{path: path, format: format, scope: scope, root: root, head: head} |
| 84 | } |
| 85 | canonical, legacy := a.desktopHistoricalRoots() |
| 86 | var joined error |
| 87 | for _, source := range canonical { |
| 88 | joined = errors.Join(joined, scanHistoricalRoot(ctx, *source, "canonical", add, &a.historyMaintenance)) |
| 89 | } |
| 90 | // Ordinary legacy discovery belongs to sessioncatalog. Only the explicit |
| 91 | // management listing enumerates it here to preserve that API's semantics. |
| 92 | if includeLegacy { |
| 93 | for _, source := range legacy { |
| 94 | joined = errors.Join(joined, scanHistoricalRoot(ctx, source, "legacy", add, &a.historyMaintenance)) |
| 95 | } |
| 96 | } |
| 97 | addHistoricalRegistrySources(state, add) |
| 98 | joined = errors.Join(joined, a.addHistoricalCatalogReceipts(ctx, add)) |
| 99 | joined = errors.Join(joined, addHistoricalLegacyReceiptHeads(sources, add)) |
| 100 | if err := a.reconcileHistoricalLegacyCatalog(ctx, sources); err != nil { |
| 101 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, err |
| 102 | } |
| 103 | publishRecovered := func(batch []historicalCatalogEntry) { |
| 104 | if err := a.reconcileHistoricalCatalog(ctx, batch, sources); err == nil { |
| 105 | publish(batch) |
| 106 | } |
| 107 | } |
| 108 | catalog := readHistoricalCanonicalCatalog(ctx, sources, &a.historyMaintenance, publishRecovered, state) |
| 109 | if err := a.reconcileHistoricalCatalog(ctx, catalog, sources); err != nil { |
| 110 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, err |
| 111 | } |
| 112 | state, err = a.workspaceRegistry().Load(ctx) |
| 113 | if err != nil { |
| 114 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, err |
| 115 | } |
| 116 | saved, presentationErr := readHistoricalSidecar() |
| 117 | if err := ctx.Err(); err != nil { |
| 118 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, err |
| 119 | } |
| 120 | c.mu.Lock() |
| 121 | notify := false |
| 122 | defer func() { |
| 123 | c.mu.Unlock() |
| 124 | if notify { |
| 125 | a.emitProjectTreeChangedEvent() |
| 126 | } |
| 127 | }() |
| 128 | if c.stopped || ctx.Err() != nil { |
| 129 | return HistoricalImportStatus{Items: []HistoricalSessionView{}}, context.Canceled |
| 130 | } |
| 131 | c.initialize(ctx) |
| 132 | if !c.queueLoaded { |
| 133 | c.loadQueueLocked() |
| 134 | } |
| 135 | // An interrupted or inaccessible root is not evidence of deletion. Keep |
| 136 | // its previously published rows until a complete discovery can prove absence. |
| 137 | if joined != nil { |
| 138 | catalog = c.catalog |
| 139 | } |
| 140 | changed := !reflect.DeepEqual(c.catalog, catalog) |
| 141 | if changed { |
| 142 | c.catalog = catalog |
| 143 | } |
| 144 | if presentationErr == nil { |
| 145 | changed = changed || !reflect.DeepEqual(c.presentations, saved.Presentations) |
| 146 | c.presentations = saved.Presentations |
| 147 | } |
| 148 | for id, source := range sources { |
| 149 | if source.path == "" { |
| 150 | continue |
| 151 | } |
| 152 | c.sources[id] = source |
| 153 | view := historicalImportView(state, id, source, c.views[id]) |
| 154 | if presentation := c.presentations[id]; presentation.Title != "" { |
| 155 | view.Title = presentation.Title |
| 156 | } |
| 157 | changed = changed || !reflect.DeepEqual(c.views[id], view) |
| 158 | c.views[id] = view |
| 159 | } |
| 160 | if changed { |
| 161 | c.catalogRevision++ |
| 162 | notify = !c.stopped |
| 163 | } |
| 164 | return c.status(), joined |
| 165 | } |
| 166 | |
| 167 | func historicalCatalogPlaceholder(key string, source historicalSource) historicalCatalogEntry { |
| 168 | kind := "global_topic" |
| 169 | if source.scope == "project" { |
| 170 | kind = "topic" |
| 171 | } |
| 172 | return historicalCatalogEntry{scope: source.scope, node: ProjectNode{ |
| 173 | Key: "source_" + key, Kind: kind, Root: source.root, Label: filepath.Base(source.path), |
| 174 | TopicID: "historical-" + key, Historical: true, SessionPath: source.path, SortOrder: -1, |
| 175 | TurnsState: "unknown", Health: "metadata_pending", Children: []ProjectNode{}, |
| 176 | Source: &SessionSourceRef{HostID: localDesktopHostID, SourceKey: key, Path: source.path}, |
| 177 | }} |
| 178 | } |
| 179 | |
| 180 | func readHistoricalCanonicalCatalog(ctx context.Context, sources map[string]historicalSource, maintenance *historywork.Coordinator, publish func([]historicalCatalogEntry), states ...workspacestate.State) []historicalCatalogEntry { |
| 181 | rows := []historicalCatalogEntry{} |
| 182 | ledger, ledgerErr := readDesktopMigrationLedger() |
| 183 | batchStart, count, bytes := 0, 0, int64(0) |
| 184 | var release func(int64) |
| 185 | var started time.Time |
| 186 | flush := func() { |
| 187 | if release != nil { |
| 188 | release(bytes) |
| 189 | release = nil |
| 190 | } |
| 191 | if publish != nil && batchStart < len(rows) { |
| 192 | publish(rows[batchStart:]) |
| 193 | } |
| 194 | batchStart, count, bytes = len(rows), 0, 0 |
| 195 | } |
| 196 | defer func() { |
| 197 | if release != nil { |
| 198 | release(bytes) |
| 199 | } |
| 200 | }() |
| 201 | ctx = maintenance.Context(ctx) |
| 202 | for key, source := range sources { |
| 203 | if ctx.Err() != nil { |
| 204 | break |
| 205 | } |
| 206 | if source.format != "canonical" || source.version != "" { |
| 207 | continue |
| 208 | } |
| 209 | // Stat reads at most three small metadata files. Charge their upper |
| 210 | // bound, including sentinel bytes used to detect oversized sidecars. |
| 211 | const metadataBytes = 3 * (historywork.ReadChunk + 1) |
| 212 | if release != nil && (count >= historywork.BatchEntries || bytes+metadataBytes > historywork.BatchBytes || time.Since(started) >= historywork.SliceDuration) { |
| 213 | flush() |
| 214 | } |
| 215 | if release == nil { |
| 216 | var err error |
| 217 | release, err = maintenance.BackgroundSlice(ctx, false) |
| 218 | if err != nil { |
| 219 | break |
| 220 | } |
| 221 | started = time.Now() |
| 222 | } |
| 223 | count++ |
| 224 | bytes += metadataBytes |
| 225 | node := historicalCatalogPlaceholder(key, source).node |
| 226 | if info, err := session.NewFilesystemPersistence(filepath.Dir(source.path)).Stat(ctx, filepath.Base(source.path)); err == nil { |
| 227 | if info.Kind == session.SessionKindHeadlessRun { |
| 228 | delete(sources, key) |
| 229 | continue |
| 230 | } |
| 231 | if info.Title != "" { |
| 232 | node.Label = info.Title |
| 233 | } |
| 234 | node.Preview, node.Turns = info.Preview, info.Turns |
| 235 | node.CreatedAt, node.LastActivityAt = info.CreatedAt.UnixMilli(), info.UpdatedAt.UnixMilli() |
| 236 | if info.MetadataStatus == session.MetadataReady { |
| 237 | node.TurnsState, node.Health = "valid", "ok" |
| 238 | } |
| 239 | } else if stat, statErr := os.Stat(source.path); statErr == nil { |
| 240 | node.CreatedAt, node.LastActivityAt = stat.ModTime().UnixMilli(), stat.ModTime().UnixMilli() |
| 241 | node.Health = "degraded" |
| 242 | } |
| 243 | changed := false |
| 244 | if len(states) > 0 && ledgerErr == nil { |
| 245 | changed = historicalCanonicalSourceChanged(states[0], ledger, key, source.path) |
| 246 | } |
| 247 | rows = append(rows, historicalCatalogEntry{scope: source.scope, node: node, sourceChanged: changed}) |
| 248 | } |
| 249 | // The final batch is published with completion metadata by the caller. |
| 250 | // Intermediate budget boundaries publish independently for large roots. |
| 251 | sort.Slice(rows, func(i, j int) bool { return rows[i].node.Key < rows[j].node.Key }) |
| 252 | return rows |
| 253 | } |
| 254 | |
| 255 | func historicalCanonicalSourceChanged(state workspacestate.State, ledger desktopMigrationLedger, key, path string) bool { |
| 256 | // Registry receipts outlive purged source directories. Missing files |
| 257 | // are not a new source revision and must not recreate a sidebar row. |
| 258 | info, err := os.Stat(path) |
| 259 | if err != nil || !info.IsDir() { |
| 260 | return false |
| 261 | } |
| 262 | if _, mapped, err := historicalMappingForSource(state, key); !mapped || err != nil { |
| 263 | return false |
| 264 | } |
| 265 | baseKey := desktopCanonicalMigrationKey(filepath.Dir(path), filepath.Base(path)) |
| 266 | revision, err := desktopMigrationSourceRevision(canonicalMigrationSourceFiles(filepath.Dir(path), filepath.Base(path))) |
| 267 | if err != nil { |
| 268 | return false |
| 269 | } |
| 270 | known := false |
| 271 | for receiptKey, receipt := range ledger.Records { |
| 272 | if !historicalSourceKeyMatches(receiptKey, baseKey) || receipt.Status != "completed" { |
| 273 | continue |
| 274 | } |
| 275 | known = true |
| 276 | if receipt.SourceRevision == revision { |
| 277 | return false |
| 278 | } |
| 279 | } |
| 280 | return known |
| 281 | } |
| 282 | |
| 283 | func (a *App) historicalCanonicalTopics(scope, root string, state workspacestate.State) []ProjectNode { |
| 284 | index := workspacestate.NewWorkspaceIndex(state) |
| 285 | return a.historicalCanonicalTopicsFromProjection(scope, root, state, index) |
| 286 | } |
| 287 | |
| 288 | func (a *App) historicalCanonicalTopicsFromProjection(scope, root string, state workspacestate.State, index *workspacestate.WorkspaceIndex) []ProjectNode { |
| 289 | a.requestHistoricalCatalog() |
| 290 | c := &a.historicalImports |
| 291 | c.mu.Lock() |
| 292 | defer c.mu.Unlock() |
| 293 | rows := []ProjectNode{} |
| 294 | for _, entry := range c.catalog { |
| 295 | if entry.scope != scope { |
| 296 | continue |
| 297 | } |
| 298 | if scope == "project" && !index.SameRoot(entry.node.Root, root) { |
| 299 | continue |
| 300 | } |
| 301 | node := entry.node |
| 302 | if node.Health == "unavailable" { |
| 303 | continue |
| 304 | } |
| 305 | if _, adopted, err := historicalMappingForSource(state, node.Source.SourceKey); adopted || err != nil { |
| 306 | continue |
| 307 | } |
| 308 | node.PreparationStatus = "available" |
| 309 | if view, ok := c.views[node.Source.SourceKey]; ok { |
| 310 | node.PreparationStatus = view.Status |
| 311 | } |
| 312 | rows = append(rows, node) |
| 313 | } |
| 314 | return rows |
| 315 | } |
| 316 | |
| 317 | func applyHistoricalPresentations(nodes []ProjectNode, saved historicalImportQueueSidecar) { |
| 318 | for i := range nodes { |
| 319 | if nodes[i].Source == nil { |
| 320 | continue |
| 321 | } |
| 322 | presentation := saved.Presentations[nodes[i].Source.SourceKey] |
| 323 | if presentation.Title != "" { |
| 324 | nodes[i].Label = presentation.Title |
| 325 | } |
| 326 | if presentation.Pinned != nil { |
| 327 | nodes[i].Pinned = *presentation.Pinned |
| 328 | } |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | // A shell-only read must not create workspaces or migrate organization state. |
| 333 | // Sources without canonical members still need their persisted pin overlays. |
| 334 | func (a *App) historicalPinnedShellsFromProjection(req ProjectTopicPageRequest, state workspacestate.State, index *workspacestate.WorkspaceIndex, legacy desktopProject) ([]ProjectNode, error) { |
| 335 | workspaceID, _, _ := index.Resolve(req.WorkspaceRoot) |
| 336 | if req.Scope != "project" { |
| 337 | workspaceID = workspacestate.GlobalWorkspaceID |
| 338 | } |
| 339 | adopted := map[string]bool{} |
| 340 | for _, mapping := range state.SourceMappings { |
| 341 | for _, key := range state.SourceKeys(mapping.SourceKey) { |
| 342 | adopted["source\x00local\x00"+key] = true |
| 343 | } |
| 344 | if sourceMappingHasPathAlias(mapping) { |
| 345 | adopted[sessionRuntimeKey(mapping.Path)] = true |
| 346 | } |
| 347 | } |
| 348 | page, err := a.unadoptedLegacyTopics(req, adopted, state.AdoptedTopicIDs(workspaceID)) |
| 349 | if err != nil { |
| 350 | return nil, err |
| 351 | } |
| 352 | nodes := append(page.Items, a.historicalCanonicalTopicsFromProjection(req.Scope, req.WorkspaceRoot, state, index)...) |
| 353 | if saved, err := readHistoricalSidecar(); err == nil { |
| 354 | applyHistoricalPresentations(nodes, saved) |
| 355 | } |
| 356 | workspace := state.Workspaces[workspaceID] |
| 357 | org := projectedShellOrganization(workspace, state, nodes, legacy) |
| 358 | req.pinnedOnly = true |
| 359 | pins := filterWorkspaceSessionNodes(req, org, state, workspaceID, nodes) |
| 360 | sort.SliceStable(pins, func(i, j int) bool { return projectTopicLess(pins[i], pins[j], req.SortMode, org.ManualOrderEnabled) }) |
| 361 | return pins, nil |
| 362 | } |
| 363 | |
| 364 | func (c *historicalImportCoordinator) finishCatalogRefresh() { |
| 365 | c.mu.Lock() |
| 366 | c.catalogAt = time.Now() |
| 367 | c.mu.Unlock() |
| 368 | } |
| 369 |