| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "log/slog" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "strconv" |
| 9 | "strings" |
| 10 | |
| 11 | "reasonix/desktop/internal/workspacestate" |
| 12 | "reasonix/internal/agent" |
| 13 | "reasonix/internal/session" |
| 14 | ) |
| 15 | |
| 16 | // SessionMutationResult is the stable response for an explicitly targeted |
| 17 | // persistent session operation. Versions are strings at the RPC boundary so |
| 18 | // JavaScript never truncates durable 64-bit sequence identities. |
| 19 | type SessionMutationResult struct { |
| 20 | TargetKey string `json:"targetKey"` |
| 21 | OperationID string `json:"operationId"` |
| 22 | Committed bool `json:"committed"` |
| 23 | Title string `json:"title,omitempty"` |
| 24 | TitleVersion string `json:"titleVersion,omitempty"` |
| 25 | LifecycleGeneration uint64 `json:"lifecycleGeneration"` |
| 26 | ProjectionPending bool `json:"projectionPending,omitempty"` |
| 27 | IdentityAliases []string `json:"identityAliases,omitempty"` |
| 28 | } |
| 29 | |
| 30 | // SessionCreationResult reports a durable child created from an explicit |
| 31 | // source without implying that Desktop opened or selected it. |
| 32 | type SessionCreationResult struct { |
| 33 | Ref session.SessionRef `json:"ref"` |
| 34 | OperationID string `json:"operationId"` |
| 35 | Committed bool `json:"committed"` |
| 36 | ProjectionPending bool `json:"projectionPending,omitempty"` |
| 37 | } |
| 38 | |
| 39 | // SessionTargetChangeEvent is an incremental projection hint. Durable storage |
| 40 | // remains authoritative; consumers that miss or cannot order these events |
| 41 | // re-read only the named target. |
| 42 | type SessionTargetChangeEvent struct { |
| 43 | TargetKey string `json:"targetKey"` |
| 44 | OperationID string `json:"operationId,omitempty"` |
| 45 | LifecycleGeneration uint64 `json:"lifecycleGeneration"` |
| 46 | Title string `json:"title,omitempty"` |
| 47 | WorkspaceID string `json:"workspaceId,omitempty"` |
| 48 | } |
| 49 | |
| 50 | func (a *App) emitSessionTargetChange(name string, event SessionTargetChangeEvent) { |
| 51 | a.emitRuntimeEvent(name, event) |
| 52 | } |
| 53 | |
| 54 | func sessionOperationErrorForTarget(err error, targetKey, operationID string) error { |
| 55 | if err == nil { |
| 56 | return nil |
| 57 | } |
| 58 | var operationErr *SessionOperationError |
| 59 | if errors.As(err, &operationErr) { |
| 60 | copy := *operationErr |
| 61 | if copy.TargetKey == "" { |
| 62 | copy.TargetKey = targetKey |
| 63 | } |
| 64 | if copy.OperationID == "" { |
| 65 | copy.OperationID = operationID |
| 66 | } |
| 67 | return © |
| 68 | } |
| 69 | switch { |
| 70 | case errors.Is(err, workspacestate.ErrMutationConflict): |
| 71 | return &SessionOperationError{ |
| 72 | Code: "target_changed", Message: "The session location or state changed. Reload it and try again.", |
| 73 | TargetKey: targetKey, OperationID: operationID, Retryable: true, |
| 74 | } |
| 75 | case errors.Is(err, workspacestate.ErrSessionNotFound), errors.Is(err, session.ErrSessionNotFound): |
| 76 | return &SessionOperationError{ |
| 77 | Code: sessionOperationTargetNotFound, Message: "The session no longer exists or has been removed.", |
| 78 | TargetKey: targetKey, OperationID: operationID, |
| 79 | } |
| 80 | case errors.Is(err, errTopicArchiveBusy), errors.Is(err, errTopicHasActiveWork), errors.Is(err, agent.ErrSessionLeaseHeld): |
| 81 | return &SessionOperationError{ |
| 82 | Code: sessionOperationBusy, Message: "Another operation is using this session. Try again shortly.", |
| 83 | TargetKey: targetKey, OperationID: operationID, Retryable: true, |
| 84 | } |
| 85 | } |
| 86 | // The host log is the only place that still carries the cause. |
| 87 | slog.Warn("desktop: unclassified session operation failure", "target", targetKey, "operation", operationID, "err", err) |
| 88 | // RPC messages are user-visible. Do not pass through paths, lease holder |
| 89 | // details, provider bodies, or credential-adjacent diagnostics from an |
| 90 | // unclassified lower-level error. |
| 91 | return &SessionOperationError{ |
| 92 | Code: sessionOperationFailed, Message: "Unable to complete this session operation.", |
| 93 | TargetKey: targetKey, OperationID: operationID, |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | // RenameSessionTarget performs a manual persistent rename without opening or |
| 98 | // selecting the target session. |
| 99 | func (a *App) RenameSessionTarget(selector SessionSelector, title string) (SessionMutationResult, error) { |
| 100 | target, err := a.resolveSessionTarget(selector) |
| 101 | if err != nil { |
| 102 | return SessionMutationResult{}, err |
| 103 | } |
| 104 | key := target.key() |
| 105 | operationID := "title-manual-" + strings.TrimPrefix(newTabID(), "tab_") |
| 106 | a.cancelAISessionTitle(key) |
| 107 | title = strings.TrimSpace(title) |
| 108 | if target.SessionRef.SessionID != "" { |
| 109 | err = a.renameCanonicalSessionTarget(target, title) |
| 110 | if err == nil { |
| 111 | info, statErr := a.desktopSessionService("").Query().Stat(a.bootContext(), target.SessionRef) |
| 112 | if statErr != nil { |
| 113 | result := SessionMutationResult{ |
| 114 | TargetKey: key, OperationID: operationID, Committed: true, Title: title, |
| 115 | LifecycleGeneration: target.LifecycleGeneration, ProjectionPending: true, |
| 116 | } |
| 117 | a.emitSessionTargetChange("session_metadata_changed", SessionTargetChangeEvent{ |
| 118 | TargetKey: key, OperationID: operationID, LifecycleGeneration: target.LifecycleGeneration, |
| 119 | Title: title, WorkspaceID: target.WorkspaceID, |
| 120 | }) |
| 121 | return result, nil |
| 122 | } |
| 123 | result := SessionMutationResult{ |
| 124 | TargetKey: key, OperationID: operationID, Committed: true, Title: title, |
| 125 | TitleVersion: titleSequenceVersion(info.TitleSequence), |
| 126 | LifecycleGeneration: target.LifecycleGeneration, |
| 127 | } |
| 128 | a.emitSessionTargetChange("session_metadata_changed", SessionTargetChangeEvent{ |
| 129 | TargetKey: key, OperationID: operationID, LifecycleGeneration: target.LifecycleGeneration, Title: title, |
| 130 | WorkspaceID: target.WorkspaceID, |
| 131 | }) |
| 132 | return result, nil |
| 133 | } |
| 134 | } else if target.SessionPath != "" { |
| 135 | if target.Source != nil { |
| 136 | err = a.saveHistoricalSourcePresentation(target.Source.SourceKey, func(presentation *historicalSourcePresentation) { |
| 137 | presentation.Title = title |
| 138 | }) |
| 139 | } |
| 140 | if err != nil { |
| 141 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 142 | } |
| 143 | if info, statErr := os.Stat(target.SessionPath); target.Source != nil && statErr == nil && info.IsDir() { |
| 144 | a.emitSessionTargetChange("session_metadata_changed", SessionTargetChangeEvent{TargetKey: key, OperationID: operationID, Title: title}) |
| 145 | a.emitProjectTreeMetadataChanged() |
| 146 | return SessionMutationResult{TargetKey: key, OperationID: operationID, Committed: true, Title: title}, nil |
| 147 | } |
| 148 | err = a.RenameSession(target.SessionPath, title) |
| 149 | if err == nil { |
| 150 | _, revision, revisionErr := agent.SessionTitleSnapshot(target.SessionPath) |
| 151 | result := SessionMutationResult{ |
| 152 | TargetKey: key, OperationID: operationID, Committed: true, Title: title, |
| 153 | TitleVersion: revision, LifecycleGeneration: target.LifecycleGeneration, |
| 154 | ProjectionPending: revisionErr != nil, |
| 155 | } |
| 156 | a.emitSessionTargetChange("session_metadata_changed", SessionTargetChangeEvent{ |
| 157 | TargetKey: key, OperationID: operationID, LifecycleGeneration: target.LifecycleGeneration, Title: title, |
| 158 | }) |
| 159 | return result, nil |
| 160 | } |
| 161 | } else if target.TopicID != "" { |
| 162 | err = a.RenameTopic(target.TopicID, title) |
| 163 | if err == nil { |
| 164 | result := SessionMutationResult{ |
| 165 | TargetKey: key, OperationID: operationID, Committed: true, Title: title, |
| 166 | LifecycleGeneration: target.LifecycleGeneration, |
| 167 | } |
| 168 | a.emitSessionTargetChange("session_metadata_changed", SessionTargetChangeEvent{ |
| 169 | TargetKey: key, OperationID: operationID, LifecycleGeneration: target.LifecycleGeneration, Title: title, |
| 170 | }) |
| 171 | return result, nil |
| 172 | } |
| 173 | } else { |
| 174 | err = newSessionOperationError(sessionOperationTargetNotFound, "The session no longer exists.") |
| 175 | } |
| 176 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 177 | } |
| 178 | |
| 179 | func titleSequenceVersion(sequence uint64) string { |
| 180 | if sequence == 0 { |
| 181 | return "" |
| 182 | } |
| 183 | return "event:" + strconv.FormatUint(sequence, 10) |
| 184 | } |
| 185 | |
| 186 | // ArchiveSessionTarget archives one explicit durable target. It does not select |
| 187 | // the target or create a conversation controller. |
| 188 | func (a *App) ArchiveSessionTarget(selector SessionSelector) (SessionMutationResult, error) { |
| 189 | target, err := a.resolveSessionMutationTarget(selector) |
| 190 | if err != nil { |
| 191 | return SessionMutationResult{}, err |
| 192 | } |
| 193 | key := target.key() |
| 194 | operationID := "archive-" + strings.TrimPrefix(newTabID(), "tab_") |
| 195 | var archived SessionTarget |
| 196 | if target.SessionRef.SessionID != "" { |
| 197 | archived, err = a.archiveCanonicalSessionWithOperation(target.SessionRef, operationID) |
| 198 | } else if target.SessionPath != "" { |
| 199 | archived, err = a.archiveSessionPathWithOperation(target.SessionPath, operationID) |
| 200 | } else { |
| 201 | err = newSessionOperationError(sessionOperationNoMessages, "This empty session has no durable content to archive.") |
| 202 | } |
| 203 | if err != nil { |
| 204 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 205 | } |
| 206 | return SessionMutationResult{ |
| 207 | TargetKey: key, OperationID: operationID, Committed: true, |
| 208 | LifecycleGeneration: archived.LifecycleGeneration, |
| 209 | ProjectionPending: archived.LifecycleGeneration == 0, |
| 210 | IdentityAliases: a.sessionTargetIdentityAliases(target), |
| 211 | }, nil |
| 212 | } |
| 213 | |
| 214 | func (a *App) sessionTargetIdentityAliases(target SessionTarget) []string { |
| 215 | aliases := []string{projectNodeSessionKey(ProjectNode{SessionPath: target.SessionPath})} |
| 216 | if target.SessionRef.SessionID != "" { |
| 217 | aliases = append(aliases, projectNodeSessionKey(ProjectNode{Session: &target.SessionRef})) |
| 218 | if state, err := a.workspaceRegistry().Load(a.bootContext()); err == nil { |
| 219 | aliases = append(aliases, sourceAliases(state, desktopWorkspaceOwnerID(state, target.Scope, target.WorkspaceRoot), target.SessionRef.SessionID)...) |
| 220 | } |
| 221 | } |
| 222 | return aliases |
| 223 | } |
| 224 | |
| 225 | // RestoreSessionTarget restores one explicit archived target. Canonical |
| 226 | // sessions use the workspace journal; pre-adoption legacy trash entries retain |
| 227 | // the existing guarded restore flow. |
| 228 | func (a *App) RestoreSessionTarget(selector SessionSelector) (SessionMutationResult, error) { |
| 229 | operationID := "restore-" + strings.TrimPrefix(newTabID(), "tab_") |
| 230 | target, err := a.resolveSessionTargetWithArchived(selector, true) |
| 231 | if err == nil { |
| 232 | key := target.key() |
| 233 | if target.SessionRef.SessionID != "" { |
| 234 | if target.Lifecycle != workspacestate.Archived { |
| 235 | err = newSessionOperationError("target_changed", "This session is not archived.") |
| 236 | } else { |
| 237 | var restored SessionTarget |
| 238 | restored, err = a.restoreCanonicalSessionWithOperation(target.SessionRef, operationID) |
| 239 | if err == nil { |
| 240 | return SessionMutationResult{ |
| 241 | TargetKey: key, OperationID: operationID, Committed: true, |
| 242 | LifecycleGeneration: restored.LifecycleGeneration, |
| 243 | ProjectionPending: restored.LifecycleGeneration == 0, |
| 244 | }, nil |
| 245 | } |
| 246 | } |
| 247 | } else { |
| 248 | err = newSessionOperationError("target_changed", "This session is not archived.") |
| 249 | } |
| 250 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 251 | } |
| 252 | |
| 253 | // A legacy trash path is intentionally outside the live-session resolver. |
| 254 | // Honor selector priority and try this only when sessionPath is the explicit |
| 255 | // highest-priority field. |
| 256 | if selector.Ref != nil || strings.TrimSpace(selector.SessionPath) == "" { |
| 257 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, "", operationID) |
| 258 | } |
| 259 | trashPath := strings.TrimSpace(selector.SessionPath) |
| 260 | dir, trashErr := a.trashedSessionDir(trashPath) |
| 261 | if trashErr != nil { |
| 262 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, "", operationID) |
| 263 | } |
| 264 | _, keyName, _, trashErr := validateTrashedSessionPath(dir, trashPath) |
| 265 | if trashErr != nil { |
| 266 | return SessionMutationResult{}, sessionOperationErrorForTarget(trashErr, "", operationID) |
| 267 | } |
| 268 | targetKey := (SessionTarget{SessionPath: trashPath}).key() |
| 269 | a.cancelAISessionTitle(targetKey) |
| 270 | if restoreErr := a.RestoreSession(trashPath); restoreErr != nil { |
| 271 | return SessionMutationResult{}, sessionOperationErrorForTarget(restoreErr, targetKey, operationID) |
| 272 | } |
| 273 | livePath := filepath.Join(dir, keyName) |
| 274 | restored, resolveErr := a.resolveSessionTarget(SessionSelector{SessionPath: livePath}) |
| 275 | if resolveErr != nil { |
| 276 | restored = SessionTarget{SessionPath: livePath} |
| 277 | } |
| 278 | a.emitSessionTargetChange("session_restored", SessionTargetChangeEvent{ |
| 279 | TargetKey: targetKey, OperationID: operationID, |
| 280 | LifecycleGeneration: restored.LifecycleGeneration, WorkspaceID: restored.WorkspaceID, |
| 281 | }) |
| 282 | return SessionMutationResult{ |
| 283 | TargetKey: targetKey, OperationID: operationID, Committed: true, |
| 284 | LifecycleGeneration: restored.LifecycleGeneration, |
| 285 | ProjectionPending: resolveErr != nil, |
| 286 | }, nil |
| 287 | } |
| 288 | |
| 289 | // MoveSessionTarget reorders one explicit session inside its owning workspace. |
| 290 | // A legacy source is first adopted through the existing migration journal so |
| 291 | // the move operates on a durable canonical identity rather than a path alias. |
| 292 | func (a *App) MoveSessionTarget(selector SessionSelector, workspaceID, beforeSessionID string) (SessionMutationResult, error) { |
| 293 | target, err := a.resolveSessionMutationTarget(selector) |
| 294 | if err != nil { |
| 295 | return SessionMutationResult{}, err |
| 296 | } |
| 297 | key := target.key() |
| 298 | operationID := "move-" + strings.TrimPrefix(newTabID(), "tab_") |
| 299 | if target.SessionRef.SessionID == "" { |
| 300 | scope, root := target.Scope, target.WorkspaceRoot |
| 301 | if scope == "" { |
| 302 | scope = "global" |
| 303 | } |
| 304 | adoptionWorkspace, ensureErr := a.ensureDesktopWorkspace(a.bootContext(), scope, root) |
| 305 | if ensureErr != nil { |
| 306 | return SessionMutationResult{}, sessionOperationErrorForTarget(ensureErr, key, operationID) |
| 307 | } |
| 308 | if strings.TrimSpace(workspaceID) == "" { |
| 309 | workspaceID = adoptionWorkspace |
| 310 | } |
| 311 | if workspaceID != adoptionWorkspace { |
| 312 | err = newSessionOperationError("target_changed", "The session cannot be moved outside its owning workspace.") |
| 313 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 314 | } |
| 315 | if migrateErr := a.migrateLegacySession( |
| 316 | a.bootContext(), |
| 317 | target.SessionPath, |
| 318 | desktopMigrationSource{scope: scope, workspaceRoot: root}, |
| 319 | adoptionWorkspace, |
| 320 | ); migrateErr != nil { |
| 321 | return SessionMutationResult{}, sessionOperationErrorForTarget(migrateErr, key, operationID) |
| 322 | } |
| 323 | adopted, adoptedErr := a.resolveSessionTarget(SessionSelector{SessionPath: target.SessionPath}) |
| 324 | if adoptedErr != nil || adopted.SessionRef.SessionID == "" { |
| 325 | if adoptedErr == nil { |
| 326 | adoptedErr = workspacestate.ErrMutationConflict |
| 327 | } |
| 328 | return SessionMutationResult{}, sessionOperationErrorForTarget(adoptedErr, key, operationID) |
| 329 | } |
| 330 | target = adopted |
| 331 | } |
| 332 | moved, err := a.moveWorkspaceSessionWithOperation(target.SessionRef, workspaceID, beforeSessionID, operationID) |
| 333 | if err != nil { |
| 334 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 335 | } |
| 336 | return SessionMutationResult{ |
| 337 | TargetKey: key, OperationID: operationID, Committed: true, |
| 338 | LifecycleGeneration: moved.LifecycleGeneration, |
| 339 | ProjectionPending: moved.LifecycleGeneration == 0, |
| 340 | }, nil |
| 341 | } |
| 342 | |
| 343 | // DeleteSessionTarget permanently removes one explicit archived canonical |
| 344 | // application session. Upgrade-source artifacts retain the existing tombstone |
| 345 | // policy and are never silently erased. |
| 346 | func (a *App) DeleteSessionTarget(selector SessionSelector) (SessionMutationResult, error) { |
| 347 | target, err := a.resolveSessionTargetWithArchived(selector, true) |
| 348 | operationID := "delete-" + strings.TrimPrefix(newTabID(), "tab_") |
| 349 | if err != nil && selector.Ref != nil { |
| 350 | target, err = a.resolveCanonicalPurgeTarget(*selector.Ref) |
| 351 | } |
| 352 | if err != nil { |
| 353 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, "", operationID) |
| 354 | } |
| 355 | key := target.key() |
| 356 | if target.SessionRef.SessionID == "" { |
| 357 | err = newSessionOperationError("unsupported", "This historical recovery source cannot be permanently deleted.") |
| 358 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 359 | } |
| 360 | if target.Lifecycle != workspacestate.Archived && target.Lifecycle != workspacestate.Deleted { |
| 361 | err = newSessionOperationError("archived", "Archive this session before deleting it.") |
| 362 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 363 | } |
| 364 | deleted, err := a.purgeCanonicalSessionWithOperation(target.SessionRef, operationID) |
| 365 | if err != nil { |
| 366 | return SessionMutationResult{}, sessionOperationErrorForTarget(err, key, operationID) |
| 367 | } |
| 368 | return SessionMutationResult{ |
| 369 | TargetKey: key, OperationID: operationID, Committed: true, |
| 370 | LifecycleGeneration: deleted.LifecycleGeneration, |
| 371 | }, nil |
| 372 | } |
| 373 |