| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "strings" |
| 6 | "time" |
| 7 | |
| 8 | "reasonix/internal/control" |
| 9 | "reasonix/internal/workspacelease" |
| 10 | ) |
| 11 | |
| 12 | // ActiveWorkView is the structured Desktop contract for work that prevents a |
| 13 | // controller rebuild or a destructive tab action. Jobs is always a JSON array. |
| 14 | type ActiveWorkView struct { |
| 15 | Running bool `json:"running"` |
| 16 | PendingPrompt bool `json:"pendingPrompt"` |
| 17 | Cancellable bool `json:"cancellable"` |
| 18 | Jobs []JobView `json:"jobs"` |
| 19 | } |
| 20 | |
| 21 | // JobCancelBatchView reports which requested jobs accepted cancellation. Both |
| 22 | // slices are initialized so Wails never sends null to React. |
| 23 | type JobCancelBatchView struct { |
| 24 | Cancelled []string `json:"cancelled"` |
| 25 | NotRunning []string `json:"notRunning"` |
| 26 | } |
| 27 | |
| 28 | // BackgroundRuntimeView is one visible or detached runtime with active work. |
| 29 | // TabID is an opaque process-local handle; paths and session writer ids are |
| 30 | // deliberately omitted from this user-facing contract. |
| 31 | type BackgroundRuntimeView struct { |
| 32 | TabID string `json:"tabId"` |
| 33 | Title string `json:"title"` |
| 34 | Detached bool `json:"detached"` |
| 35 | Running bool `json:"running"` |
| 36 | PendingPrompt bool `json:"pendingPrompt"` |
| 37 | Jobs []JobView `json:"jobs"` |
| 38 | } |
| 39 | |
| 40 | // WorkspaceConflictView describes a currently-waiting Delivery writer without |
| 41 | // exposing the lock path, process id, or session path. |
| 42 | type WorkspaceConflictView struct { |
| 43 | State string `json:"state"` |
| 44 | OwnerTabID string `json:"ownerTabId,omitempty"` |
| 45 | OwnerTitle string `json:"ownerTitle,omitempty"` |
| 46 | OwnerWork ActiveWorkView `json:"ownerWork"` |
| 47 | CanReveal bool `json:"canReveal"` |
| 48 | CanCreateWorktree bool `json:"canCreateWorktree"` |
| 49 | } |
| 50 | |
| 51 | func activeWorkForController(ctrl control.SessionAPI) ActiveWorkView { |
| 52 | view := ActiveWorkView{Jobs: []JobView{}} |
| 53 | if ctrl == nil { |
| 54 | return view |
| 55 | } |
| 56 | status := ctrl.RuntimeStatus() |
| 57 | view.Running = status.Running |
| 58 | view.PendingPrompt = status.PendingPrompt |
| 59 | view.Cancellable = status.Cancellable |
| 60 | for _, job := range ctrl.Jobs() { |
| 61 | view.Jobs = append(view.Jobs, JobView{ |
| 62 | ID: job.ID, Kind: job.Kind, Label: job.Label, |
| 63 | Status: job.Status, StartedAt: job.StartedAt, |
| 64 | }) |
| 65 | } |
| 66 | return view |
| 67 | } |
| 68 | |
| 69 | func (v ActiveWorkView) active() bool { |
| 70 | return v.Running || v.PendingPrompt || len(v.Jobs) > 0 |
| 71 | } |
| 72 | |
| 73 | // ActiveWorkForTab returns the precise blocker state for one tab. It is a |
| 74 | // preflight aid only; rebuild paths still re-check active work atomically. |
| 75 | func (a *App) ActiveWorkForTab(tabID string) ActiveWorkView { |
| 76 | return activeWorkForController(a.ctrlForRuntimeTabID(tabID)) |
| 77 | } |
| 78 | |
| 79 | // CancelJobsForTab requests cancellation for a stable tab id. The job manager |
| 80 | // keeps cancelled-but-unwinding jobs visible until their done channels close. |
| 81 | func (a *App) CancelJobsForTab(tabID string, jobIDs []string) (JobCancelBatchView, error) { |
| 82 | result := JobCancelBatchView{Cancelled: []string{}, NotRunning: []string{}} |
| 83 | seen := map[string]bool{} |
| 84 | for _, raw := range jobIDs { |
| 85 | id := strings.TrimSpace(raw) |
| 86 | if id == "" || seen[id] { |
| 87 | continue |
| 88 | } |
| 89 | seen[id] = true |
| 90 | cancelled, err := a.CancelJobForTab(tabID, id) |
| 91 | if err != nil { |
| 92 | return result, err |
| 93 | } |
| 94 | if cancelled { |
| 95 | result.Cancelled = append(result.Cancelled, id) |
| 96 | } else { |
| 97 | result.NotRunning = append(result.NotRunning, id) |
| 98 | } |
| 99 | } |
| 100 | return result, nil |
| 101 | } |
| 102 | |
| 103 | type backgroundRuntimeSnapshot struct { |
| 104 | id string |
| 105 | ctrl control.SessionAPI |
| 106 | detached bool |
| 107 | title string |
| 108 | } |
| 109 | |
| 110 | // BackgroundRuntimes returns every process-local runtime that still needs a |
| 111 | // visible recovery path, including runtimes detached by an explicit tab close. |
| 112 | func (a *App) BackgroundRuntimes() []BackgroundRuntimeView { |
| 113 | a.mu.RLock() |
| 114 | snapshots := make([]backgroundRuntimeSnapshot, 0, len(a.tabs)+len(a.detachedSessions)) |
| 115 | seen := map[*WorkspaceTab]bool{} |
| 116 | for _, tab := range a.tabs { |
| 117 | if tab == nil || seen[tab] { |
| 118 | continue |
| 119 | } |
| 120 | seen[tab] = true |
| 121 | title := strings.TrimSpace(tab.TopicTitle) |
| 122 | if title == "" { |
| 123 | title = strings.TrimSpace(tab.Label) |
| 124 | } |
| 125 | snapshots = append(snapshots, backgroundRuntimeSnapshot{id: tab.ID, ctrl: tab.Ctrl, title: title}) |
| 126 | } |
| 127 | for _, tab := range a.detachedSessions { |
| 128 | if tab == nil || seen[tab] { |
| 129 | continue |
| 130 | } |
| 131 | seen[tab] = true |
| 132 | title := strings.TrimSpace(tab.TopicTitle) |
| 133 | if title == "" { |
| 134 | title = strings.TrimSpace(tab.Label) |
| 135 | } |
| 136 | snapshots = append(snapshots, backgroundRuntimeSnapshot{id: tab.ID, ctrl: tab.Ctrl, detached: true, title: title}) |
| 137 | } |
| 138 | a.mu.RUnlock() |
| 139 | |
| 140 | out := make([]BackgroundRuntimeView, 0, len(snapshots)) |
| 141 | for _, snapshot := range snapshots { |
| 142 | work := activeWorkForController(snapshot.ctrl) |
| 143 | if !work.active() { |
| 144 | continue |
| 145 | } |
| 146 | out = append(out, BackgroundRuntimeView{ |
| 147 | TabID: snapshot.id, Title: snapshot.title, Detached: snapshot.detached, |
| 148 | Running: work.Running, PendingPrompt: work.PendingPrompt, Jobs: work.Jobs, |
| 149 | }) |
| 150 | } |
| 151 | return out |
| 152 | } |
| 153 | |
| 154 | func (a *App) ctrlForRuntimeTabID(tabID string) control.SessionAPI { |
| 155 | a.mu.RLock() |
| 156 | defer a.mu.RUnlock() |
| 157 | if strings.TrimSpace(tabID) == "" { |
| 158 | return a.activeCtrlLocked() |
| 159 | } |
| 160 | tab := a.tabByEventSinkIDLocked(tabID) |
| 161 | if tab == nil { |
| 162 | return nil |
| 163 | } |
| 164 | return tab.Ctrl |
| 165 | } |
| 166 | |
| 167 | // RevealBackgroundRuntime activates a visible owner or reopens the exact |
| 168 | // detached session. It never reattaches by workspace alone. |
| 169 | func (a *App) RevealBackgroundRuntime(tabID string) (TabMeta, error) { |
| 170 | a.mu.RLock() |
| 171 | if tab := a.tabs[tabID]; tab != nil { |
| 172 | a.mu.RUnlock() |
| 173 | if err := a.SetActiveTab(tabID); err != nil { |
| 174 | return TabMeta{}, err |
| 175 | } |
| 176 | a.mu.RLock() |
| 177 | current := a.tabs[tabID] |
| 178 | if current == nil { |
| 179 | a.mu.RUnlock() |
| 180 | return TabMeta{}, fmt.Errorf("background task is no longer available") |
| 181 | } |
| 182 | meta := a.tabMeta(current, true) |
| 183 | a.mu.RUnlock() |
| 184 | return enrichTabMeta(meta), nil |
| 185 | } |
| 186 | tab := a.tabByEventSinkIDLocked(tabID) |
| 187 | if tab == nil || tab.Ctrl == nil { |
| 188 | a.mu.RUnlock() |
| 189 | return TabMeta{}, fmt.Errorf("background task is no longer available") |
| 190 | } |
| 191 | scope := tab.Scope |
| 192 | workspaceRoot := tab.WorkspaceRoot |
| 193 | topicID := tab.TopicID |
| 194 | sessionPath := tab.currentSessionPath() |
| 195 | a.mu.RUnlock() |
| 196 | if strings.TrimSpace(sessionPath) == "" { |
| 197 | return TabMeta{}, fmt.Errorf("background task session is unavailable") |
| 198 | } |
| 199 | return a.OpenTopicSession(scope, workspaceRoot, topicID, sessionPath) |
| 200 | } |
| 201 | |
| 202 | type workspaceLeaseReporter interface { |
| 203 | WorkspaceLeaseState() workspacelease.State |
| 204 | } |
| 205 | |
| 206 | func controllerWorkspaceLeaseState(ctrl control.SessionAPI) workspacelease.State { |
| 207 | if reporter, ok := ctrl.(workspaceLeaseReporter); ok { |
| 208 | return reporter.WorkspaceLeaseState() |
| 209 | } |
| 210 | return workspacelease.State{} |
| 211 | } |
| 212 | |
| 213 | // WorkspaceConflictForTab classifies the owner that a Delivery writer is |
| 214 | // currently waiting for. An acquired process-local owner is actionable; when no |
| 215 | // local owner matches, the OS lock is treated as external. |
| 216 | func (a *App) WorkspaceConflictForTab(tabID string) WorkspaceConflictView { |
| 217 | empty := WorkspaceConflictView{State: "none", OwnerWork: ActiveWorkView{Jobs: []JobView{}}} |
| 218 | a.mu.RLock() |
| 219 | var target *WorkspaceTab |
| 220 | if strings.TrimSpace(tabID) == "" { |
| 221 | target = a.activeTabLocked() |
| 222 | } else { |
| 223 | target = a.tabByEventSinkIDLocked(tabID) |
| 224 | } |
| 225 | if target == nil { |
| 226 | a.mu.RUnlock() |
| 227 | return empty |
| 228 | } |
| 229 | targetCtrl := target.Ctrl |
| 230 | targetWorkspaceRoot := target.WorkspaceRoot |
| 231 | a.mu.RUnlock() |
| 232 | if targetCtrl == nil { |
| 233 | return empty |
| 234 | } |
| 235 | targetState := controllerWorkspaceLeaseState(targetCtrl) |
| 236 | if !targetState.Waiting || targetState.Acquired { |
| 237 | return empty |
| 238 | } |
| 239 | targetRoot, err := workspacelease.CanonicalWorkspace(targetWorkspaceRoot) |
| 240 | if err != nil { |
| 241 | return empty |
| 242 | } |
| 243 | availability := a.DeliveryWorktreeAvailability(targetWorkspaceRoot) |
| 244 | |
| 245 | a.mu.RLock() |
| 246 | type candidate struct { |
| 247 | id string |
| 248 | ctrl control.SessionAPI |
| 249 | root string |
| 250 | title string |
| 251 | } |
| 252 | candidates := make([]candidate, 0, len(a.tabs)+len(a.detachedSessions)) |
| 253 | seen := map[*WorkspaceTab]bool{} |
| 254 | for _, tab := range a.runtimeTabsLocked() { |
| 255 | if tab == nil || tab == target || seen[tab] || tab.Ctrl == nil { |
| 256 | continue |
| 257 | } |
| 258 | seen[tab] = true |
| 259 | title := strings.TrimSpace(tab.TopicTitle) |
| 260 | if title == "" { |
| 261 | title = strings.TrimSpace(tab.Label) |
| 262 | } |
| 263 | candidates = append(candidates, candidate{id: tab.ID, ctrl: tab.Ctrl, root: tab.WorkspaceRoot, title: title}) |
| 264 | } |
| 265 | a.mu.RUnlock() |
| 266 | |
| 267 | for _, candidate := range candidates { |
| 268 | root, err := workspacelease.CanonicalWorkspace(candidate.root) |
| 269 | if err != nil || root != targetRoot || !controllerWorkspaceLeaseState(candidate.ctrl).Acquired { |
| 270 | continue |
| 271 | } |
| 272 | return WorkspaceConflictView{ |
| 273 | State: "local", OwnerTabID: candidate.id, OwnerTitle: candidate.title, |
| 274 | OwnerWork: activeWorkForController(candidate.ctrl), CanReveal: true, |
| 275 | CanCreateWorktree: availability.Available, |
| 276 | } |
| 277 | } |
| 278 | empty.State = "external" |
| 279 | empty.CanCreateWorktree = availability.Available |
| 280 | return empty |
| 281 | } |
| 282 | |
| 283 | // RevealWorkspaceWriterForTab opens the exact process-local runtime identified |
| 284 | // by WorkspaceConflictForTab. External writers remain non-actionable. |
| 285 | func (a *App) RevealWorkspaceWriterForTab(tabID string) (TabMeta, error) { |
| 286 | conflict := a.WorkspaceConflictForTab(tabID) |
| 287 | if conflict.State != "local" || conflict.OwnerTabID == "" { |
| 288 | return TabMeta{}, fmt.Errorf("the workspace writer is not available in this Reasonix window") |
| 289 | } |
| 290 | return a.RevealBackgroundRuntime(conflict.OwnerTabID) |
| 291 | } |
| 292 | |
| 293 | const stopAndCloseGrace = 15 * time.Second |
| 294 | |
| 295 | // CloseTabWithPolicy makes the old implicit detach behavior an explicit user |
| 296 | // choice. stop_and_close never removes the tab until all owned work is idle. |
| 297 | func (a *App) CloseTabWithPolicy(tabID, policy string) error { |
| 298 | switch strings.TrimSpace(policy) { |
| 299 | case "keep_running": |
| 300 | return a.closeTab(tabID, true) |
| 301 | case "stop_and_close": |
| 302 | ctrl := a.ctrlForRuntimeTabID(tabID) |
| 303 | if ctrl == nil { |
| 304 | return a.closeTab(tabID, false) |
| 305 | } |
| 306 | ctrl.Cancel() |
| 307 | jobs := ctrl.Jobs() |
| 308 | ids := make([]string, 0, len(jobs)) |
| 309 | for _, job := range jobs { |
| 310 | ids = append(ids, job.ID) |
| 311 | } |
| 312 | if _, err := a.CancelJobsForTab(tabID, ids); err != nil { |
| 313 | return err |
| 314 | } |
| 315 | deadline := time.NewTimer(stopAndCloseGrace) |
| 316 | defer deadline.Stop() |
| 317 | ticker := time.NewTicker(25 * time.Millisecond) |
| 318 | defer ticker.Stop() |
| 319 | for { |
| 320 | if !activeWorkForController(ctrl).active() { |
| 321 | return a.closeTab(tabID, false) |
| 322 | } |
| 323 | select { |
| 324 | case <-deadline.C: |
| 325 | return fmt.Errorf("background work did not stop within %s; the task was kept open", stopAndCloseGrace) |
| 326 | case <-ticker.C: |
| 327 | } |
| 328 | } |
| 329 | default: |
| 330 | return fmt.Errorf("unknown close policy %q", policy) |
| 331 | } |
| 332 | } |
| 333 |