| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "crypto/sha256" |
| 5 | "encoding/hex" |
| 6 | "encoding/json" |
| 7 | "errors" |
| 8 | "fmt" |
| 9 | "sort" |
| 10 | "strings" |
| 11 | "sync" |
| 12 | |
| 13 | "reasonix/desktop/internal/workspacestate" |
| 14 | "reasonix/internal/session" |
| 15 | ) |
| 16 | |
| 17 | type SessionLifecycleTarget struct { |
| 18 | WorkspaceID string `json:"workspaceId,omitempty"` |
| 19 | Ref *session.SessionRef `json:"ref,omitempty"` |
| 20 | RecoveryEntryID string `json:"recoveryEntryId,omitempty"` |
| 21 | } |
| 22 | type SessionLifecycleRequest struct { |
| 23 | OperationID string `json:"operationId"` |
| 24 | Action string `json:"action"` |
| 25 | Targets []SessionLifecycleTarget `json:"targets"` |
| 26 | ExpectedGeneration uint64 `json:"expectedGeneration"` |
| 27 | } |
| 28 | type SessionLifecycleItem struct { |
| 29 | Target SessionLifecycleTarget `json:"target"` |
| 30 | Ref *session.SessionRef `json:"ref,omitempty"` |
| 31 | WorkspaceID string `json:"workspaceId"` |
| 32 | Committed bool `json:"committed"` |
| 33 | ErrorCode string `json:"errorCode,omitempty"` |
| 34 | Retryable bool `json:"retryable"` |
| 35 | } |
| 36 | type SessionLifecycleResult struct { |
| 37 | OperationID string `json:"operationId"` |
| 38 | Generation uint64 `json:"generation"` |
| 39 | Committed bool `json:"committed"` |
| 40 | Items []SessionLifecycleItem `json:"items"` |
| 41 | } |
| 42 | |
| 43 | // Serializes duplicate RPC deliveries; persisted receipts handle restart. |
| 44 | var desktopLifecycleCommands sync.Mutex |
| 45 | |
| 46 | func (a *App) ApplySessionLifecycle(req SessionLifecycleRequest) (SessionLifecycleResult, error) { |
| 47 | desktopLifecycleCommands.Lock() |
| 48 | defer desktopLifecycleCommands.Unlock() |
| 49 | out := SessionLifecycleResult{OperationID: req.OperationID, Items: []SessionLifecycleItem{}} |
| 50 | if err := validateLifecycleRequest(req); err != nil { |
| 51 | return out, err |
| 52 | } |
| 53 | body, err := json.Marshal(req) |
| 54 | if err != nil { |
| 55 | return out, err |
| 56 | } |
| 57 | sum := sha256.Sum256(body) |
| 58 | fingerprint := hex.EncodeToString(sum[:]) |
| 59 | ctx := a.bootContext() |
| 60 | store := a.workspaceRegistry() |
| 61 | state, err := store.Load(ctx) |
| 62 | if err != nil { |
| 63 | return out, err |
| 64 | } |
| 65 | key := "command-" + req.OperationID |
| 66 | if old, ok := state.PendingOperations[key]; ok { |
| 67 | if old.Kind != "command" || old.RequestFingerprint != fingerprint { |
| 68 | return out, workspacestate.ErrMutationConflict |
| 69 | } |
| 70 | if len(old.Result) > 0 { |
| 71 | if err := json.Unmarshal(old.Result, &out); err != nil { |
| 72 | return out, err |
| 73 | } |
| 74 | out.Generation = old.ResultGeneration |
| 75 | } |
| 76 | if old.Phase == "committed" { |
| 77 | return out, nil |
| 78 | } |
| 79 | } else { |
| 80 | begin := store.BeginCommand |
| 81 | if req.Action == "purge" { |
| 82 | begin = store.BeginPurgeCommand |
| 83 | } |
| 84 | if err := begin(ctx, key, fingerprint, body, req.ExpectedGeneration); err != nil { |
| 85 | return out, err |
| 86 | } |
| 87 | } |
| 88 | previous := out.Items |
| 89 | out.Items = []SessionLifecycleItem{} |
| 90 | archiveErr := a.archiveLifecycleCommand(req, key) |
| 91 | for i, target := range req.Targets { |
| 92 | if i < len(previous) && (previous[i].Committed || !previous[i].Retryable) { |
| 93 | out.Items = append(out.Items, previous[i]) |
| 94 | continue |
| 95 | } |
| 96 | item, err := a.applyLifecycleTarget(req, key, i, target, state, archiveErr) |
| 97 | if err != nil { |
| 98 | return out, err |
| 99 | } |
| 100 | out.Items = append(out.Items, item) |
| 101 | } |
| 102 | state, err = store.Load(ctx) |
| 103 | if err != nil { |
| 104 | return out, err |
| 105 | } |
| 106 | out.Generation = state.Generation + 1 |
| 107 | out.Committed = true |
| 108 | final := true |
| 109 | for _, item := range out.Items { |
| 110 | out.Committed = out.Committed && item.Committed |
| 111 | if !item.Committed && item.Retryable { |
| 112 | final = false |
| 113 | } |
| 114 | } |
| 115 | body, err = json.Marshal(out) |
| 116 | if err != nil { |
| 117 | return out, err |
| 118 | } |
| 119 | a.lifecycleCheckpoint("before-command-result") |
| 120 | if err := store.SaveCommandResult(ctx, key, body, final); err != nil { |
| 121 | return out, err |
| 122 | } |
| 123 | a.lifecycleCheckpoint("after-command-result") |
| 124 | state, err = store.Load(ctx) |
| 125 | if err != nil { |
| 126 | return out, err |
| 127 | } |
| 128 | out.Generation = state.PendingOperations[key].ResultGeneration |
| 129 | a.emitProjectTreeChanged() |
| 130 | return out, nil |
| 131 | } |
| 132 | |
| 133 | type TrashEntry struct { |
| 134 | ID string `json:"id"` |
| 135 | Ref *session.SessionRef `json:"ref,omitempty"` |
| 136 | RecoveryEntryID string `json:"recoveryEntryId,omitempty"` |
| 137 | Title string `json:"title"` |
| 138 | WorkspaceID string `json:"workspaceId"` |
| 139 | WorkspaceTitle string `json:"workspaceTitle"` |
| 140 | ArchivedAt int64 `json:"archivedAt"` |
| 141 | Health string `json:"health"` |
| 142 | OperationPhase string `json:"operationPhase,omitempty"` |
| 143 | CanPreview bool `json:"canPreview"` |
| 144 | CanRestore bool `json:"canRestore"` |
| 145 | CanPurge bool `json:"canPurge"` |
| 146 | CleanupBatchID string `json:"cleanupBatchId,omitempty"` |
| 147 | CleanupKind string `json:"cleanupKind,omitempty"` |
| 148 | } |
| 149 | type TrashEntryPage struct { |
| 150 | Items []TrashEntry `json:"items"` |
| 151 | Generation uint64 `json:"generation"` |
| 152 | NextCursor string `json:"nextCursor,omitempty"` |
| 153 | } |
| 154 | |
| 155 | func (a *App) ListTrashEntries(query, cursor string, limit int) (TrashEntryPage, error) { |
| 156 | out := TrashEntryPage{Items: []TrashEntry{}} |
| 157 | state, err := a.workspaceRegistry().Load(a.bootContext()) |
| 158 | if err != nil { |
| 159 | return out, err |
| 160 | } |
| 161 | out.Generation = state.Generation |
| 162 | start, err := decodeWorkspaceSessionCursor(cursor, state.Generation) |
| 163 | if err != nil { |
| 164 | return out, err |
| 165 | } |
| 166 | rows := []TrashEntry{} |
| 167 | service := a.desktopSessionService("") |
| 168 | cleanupState, _ := a.legacyCleanup.Load(a.bootContext()) |
| 169 | cleanupBySession := legacyCleanupArchivedSessions(cleanupState) |
| 170 | for id, status := range state.SessionStates { |
| 171 | op := state.PendingOperations["purge-"+id] |
| 172 | purgeState := workspacestate.ClassifyPurge(state, id) |
| 173 | pending := purgeState == workspacestate.PurgeTombstoned || purgeState == workspacestate.PurgeContentRemoved || purgeState == workspacestate.PurgeInvalid |
| 174 | if status.Lifecycle != workspacestate.Archived && !pending { |
| 175 | continue |
| 176 | } |
| 177 | ref := session.SessionRef{HostID: localDesktopHostID, SessionID: id} |
| 178 | row := TrashEntry{ID: id, Ref: &ref, Title: state.Presentation[id].Title, ArchivedAt: status.ArchivedAt, CanPurge: purgeState != workspacestate.PurgeInvalid, Health: "ready"} |
| 179 | decorateLegacyCleanupTrashEntry(&row, cleanupState.BatchID, cleanupBySession[id]) |
| 180 | for wid, w := range state.Workspaces { |
| 181 | if containsDesktopString(w.SessionIDs, id) { |
| 182 | row.WorkspaceID = wid |
| 183 | row.WorkspaceTitle = w.Title |
| 184 | break |
| 185 | } |
| 186 | } |
| 187 | if info, e := service.Query().Stat(a.bootContext(), ref); e == nil { |
| 188 | if info.Title != "" { |
| 189 | row.Title = info.Title |
| 190 | } |
| 191 | row.CanPreview = !pending |
| 192 | row.CanRestore = !pending |
| 193 | } else { |
| 194 | row.Health = "unavailable" |
| 195 | } |
| 196 | if pending { |
| 197 | row.OperationPhase = op.Phase |
| 198 | row.Health = "purge_pending" |
| 199 | } |
| 200 | if row.Title == "" { |
| 201 | row.Title = id |
| 202 | } |
| 203 | if strings.Contains(strings.ToLower(row.Title+"\n"+row.WorkspaceTitle), strings.ToLower(query)) { |
| 204 | rows = append(rows, row) |
| 205 | } |
| 206 | } |
| 207 | rows = append(rows, legacyCleanupTopicTrashEntries(cleanupState, state, query)...) |
| 208 | rows = append(rows, topicRemovalTrashEntries(state, query)...) |
| 209 | sort.Slice(rows, func(i, j int) bool { |
| 210 | if rows[i].ArchivedAt != rows[j].ArchivedAt { |
| 211 | return rows[i].ArchivedAt > rows[j].ArchivedAt |
| 212 | } |
| 213 | return rows[i].ID < rows[j].ID |
| 214 | }) |
| 215 | if limit <= 0 { |
| 216 | limit = 50 |
| 217 | } |
| 218 | if limit > 200 { |
| 219 | limit = 200 |
| 220 | } |
| 221 | if start > len(rows) { |
| 222 | start = len(rows) |
| 223 | } |
| 224 | end := min(start+limit, len(rows)) |
| 225 | out.Items = append(out.Items, rows[start:end]...) |
| 226 | if end < len(rows) { |
| 227 | out.NextCursor = fmt.Sprintf("%d:%d", state.Generation, end) |
| 228 | } |
| 229 | return out, nil |
| 230 | } |
| 231 | |
| 232 | func validateLifecycleRequest(req SessionLifecycleRequest) error { |
| 233 | if strings.TrimSpace(req.OperationID) == "" || len(req.OperationID) > 200 || len(req.Targets) == 0 || len(req.Targets) > 1000 { |
| 234 | return errors.New("invalid lifecycle request") |
| 235 | } |
| 236 | if req.Action != "archive" && req.Action != "restore" && req.Action != "purge" { |
| 237 | return errors.New("invalid lifecycle action") |
| 238 | } |
| 239 | seen := map[string]bool{} |
| 240 | for _, target := range req.Targets { |
| 241 | if (target.Ref == nil) == (target.RecoveryEntryID == "") { |
| 242 | return errors.New("exactly one session identity is required") |
| 243 | } |
| 244 | if target.Ref != nil { |
| 245 | if err := validateLocalSessionRef(*target.Ref); err != nil { |
| 246 | return err |
| 247 | } |
| 248 | } else if req.Action != "restore" && !(req.Action == "purge" && (strings.HasPrefix(target.RecoveryEntryID, "legacy-cleanup:") || strings.HasPrefix(target.RecoveryEntryID, "topic-removal:"))) { |
| 249 | return errors.New("historical recovery entries can only be restored") |
| 250 | } |
| 251 | body, _ := json.Marshal(target) |
| 252 | if seen[string(body)] { |
| 253 | return errors.New("duplicate lifecycle target") |
| 254 | } |
| 255 | seen[string(body)] = true |
| 256 | } |
| 257 | return nil |
| 258 | } |
| 259 | |
| 260 | func (a *App) archiveLifecycleCommand(req SessionLifecycleRequest, key string) error { |
| 261 | store := a.workspaceRegistry() |
| 262 | if req.Action == "archive" { |
| 263 | child := key + "-archive" |
| 264 | state, err := store.Load(a.bootContext()) |
| 265 | if err != nil { |
| 266 | return err |
| 267 | } |
| 268 | if state.PendingOperations[child].Phase != "committed" { |
| 269 | for _, target := range req.Targets { |
| 270 | if state.SessionStates[target.Ref.SessionID].Generation > req.ExpectedGeneration { |
| 271 | return workspacestate.ErrMutationConflict |
| 272 | } |
| 273 | } |
| 274 | refs := []session.SessionRef{} |
| 275 | for _, target := range req.Targets { |
| 276 | refs = append(refs, *target.Ref) |
| 277 | } |
| 278 | release := a.lockRuntimeMutation("archive lifecycle command") |
| 279 | e := a.archiveSessionRefsWithOperation(refs, child) |
| 280 | release() |
| 281 | if e != nil { |
| 282 | return e |
| 283 | } |
| 284 | } |
| 285 | } |
| 286 | return nil |
| 287 | } |
| 288 | |
| 289 | func (a *App) applyLifecycleTarget(req SessionLifecycleRequest, key string, index int, target SessionLifecycleTarget, state workspacestate.State, archiveErr error) (SessionLifecycleItem, error) { |
| 290 | ctx, store := a.bootContext(), a.workspaceRegistry() |
| 291 | item := SessionLifecycleItem{Target: target, Ref: target.Ref} |
| 292 | var opErr error |
| 293 | child := fmt.Sprintf("%s-%d", key, index) |
| 294 | latest, loadErr := store.Load(ctx) |
| 295 | if loadErr != nil { |
| 296 | return item, loadErr |
| 297 | } |
| 298 | if target.Ref != nil && req.Action != "archive" && latest.PendingOperations[child].Phase != "committed" && latest.SessionStates[target.Ref.SessionID].Generation > req.ExpectedGeneration { |
| 299 | purgeState := workspacestate.ClassifyPurge(latest, target.Ref.SessionID) |
| 300 | resumingPurge := req.Action == "purge" && (purgeState == workspacestate.PurgeTombstoned || purgeState == workspacestate.PurgeContentRemoved || purgeState == workspacestate.PurgeCommitted) |
| 301 | if !resumingPurge { |
| 302 | item.ErrorCode = "state_conflict" |
| 303 | return item, nil |
| 304 | } |
| 305 | } |
| 306 | if target.Ref != nil { |
| 307 | for id, w := range state.Workspaces { |
| 308 | if containsDesktopString(w.SessionIDs, target.Ref.SessionID) { |
| 309 | item.WorkspaceID = id |
| 310 | break |
| 311 | } |
| 312 | } |
| 313 | } |
| 314 | switch req.Action { |
| 315 | case "archive": |
| 316 | opErr = archiveErr |
| 317 | case "purge": |
| 318 | if target.Ref == nil && strings.HasPrefix(target.RecoveryEntryID, "topic-removal:") { |
| 319 | opErr = a.purgeRemovedTopic(strings.TrimPrefix(target.RecoveryEntryID, "topic-removal:"), target.WorkspaceID) |
| 320 | break |
| 321 | } |
| 322 | if target.Ref == nil && strings.HasPrefix(target.RecoveryEntryID, "legacy-cleanup:") { |
| 323 | opErr = a.purgeLegacyCleanupTopic(strings.TrimPrefix(target.RecoveryEntryID, "legacy-cleanup:"), target.WorkspaceID) |
| 324 | } else { |
| 325 | release := a.lockRuntimeMutation("purge lifecycle command") |
| 326 | opErr = a.purgeCanonicalSession(ctx, *target.Ref, req.ExpectedGeneration) |
| 327 | release() |
| 328 | } |
| 329 | case "restore": |
| 330 | if target.Ref == nil && strings.HasPrefix(target.RecoveryEntryID, "topic-removal:") { |
| 331 | opErr = a.restoreRemovedTopic(strings.TrimPrefix(target.RecoveryEntryID, "topic-removal:"), target.WorkspaceID) |
| 332 | item.WorkspaceID = target.WorkspaceID |
| 333 | break |
| 334 | } |
| 335 | if target.Ref == nil && strings.HasPrefix(target.RecoveryEntryID, "legacy-cleanup:") { |
| 336 | opErr = a.restoreLegacyCleanupTopic(strings.TrimPrefix(target.RecoveryEntryID, "legacy-cleanup:"), target.WorkspaceID) |
| 337 | item.WorkspaceID = target.WorkspaceID |
| 338 | break |
| 339 | } |
| 340 | var restored SessionRestoreResult |
| 341 | if target.Ref == nil { |
| 342 | restored, opErr = a.restoreRecoveryEntryInWorkspace(target.RecoveryEntryID, child, target.WorkspaceID) |
| 343 | } else { |
| 344 | release := a.lockRuntimeMutation("restore lifecycle command") |
| 345 | saved, loadErr := store.Load(ctx) |
| 346 | if loadErr != nil { |
| 347 | opErr = loadErr |
| 348 | } else if done := saved.PendingOperations[child]; done.Phase == "committed" { |
| 349 | restored = SessionRestoreResult{Session: *target.Ref, WorkspaceID: done.WorkspaceID, Generation: done.ResultGeneration} |
| 350 | } else { |
| 351 | restored, opErr = a.restoreCanonicalSession(ctx, *target.Ref, child) |
| 352 | } |
| 353 | release() |
| 354 | } |
| 355 | if opErr == nil { |
| 356 | item.Ref = &restored.Session |
| 357 | item.WorkspaceID = restored.WorkspaceID |
| 358 | } |
| 359 | } |
| 360 | item.Committed = opErr == nil |
| 361 | if opErr != nil { |
| 362 | item.ErrorCode = "operation_failed" |
| 363 | item.Retryable = true |
| 364 | if errors.Is(opErr, workspacestate.ErrMutationConflict) { |
| 365 | item.ErrorCode = "state_conflict" |
| 366 | item.Retryable = false |
| 367 | } |
| 368 | } |
| 369 | return item, nil |
| 370 | } |
| 371 |