refactor(launcher): replace LauncherFlowCoordinator with LaunchPipeline and slim App shell

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-22 17:24:27 +08:00 · 2026-05-28 11:03:49 +08:00
parent b219f109ec
commit a26b6faace
19 changed files with 2530 additions and 801 deletions
--- a/LanMountainDesktop.Launcher/Startup/Phases/LaunchHostPhase.cs
+++ b/LanMountainDesktop.Launcher/Startup/Phases/LaunchHostPhase.cs
@@ -0,0 +1,173 @@
+using LanMountainDesktop.Launcher.Models;
+using LanMountainDesktop.Shared.Contracts.Launcher;
+
+namespace LanMountainDesktop.Launcher.Startup;
+
+internal sealed class LaunchHostPhase : ILaunchPhase
+{
+    private static readonly string SoftTimeoutStatusMessage = Resources.Strings.Coordinator_SlowDeviceMessage;
+    private static readonly string SoftTimeoutDetailsMessage = Resources.Strings.Coordinator_RunningHostMessage;
+
+    private readonly HostLaunchService _hostLaunchService = new();
+
+    public string Name => nameof(LaunchHostPhase);
+
+    public async Task<LaunchPhaseResult> ExecuteAsync(LaunchContext context, CancellationToken cancellationToken = default)
+    {
+        context.Reporter.Report("launch", "Launching desktop...");
+        var startupSuccessTracker = context.SuccessTracker;
+        var attachableAttempt = context.StartupAttemptRegistry.TryGetAttachableAttempt(
+            context.CommandContext.LaunchSource,
+            startupSuccessTracker.PolicyKey);
+
+        HostLaunchOutcome launchOutcome;
+        if (attachableAttempt is not null &&
+            context.StartupAttemptRegistry.AdoptAttempt(attachableAttempt.AttemptId) &&
+            LaunchResultBuilder.TryGetLiveProcess(attachableAttempt.HostPid, out var attachedProcess))
+        {
+            context.TrackedAttempt = attachableAttempt;
+            context.AttachedToExistingAttempt = true;
+            context.IpcConnected = attachableAttempt.IpcConnected;
+            context.LastStage = attachableAttempt.LastObservedStage;
+            context.LastStageMessage = string.IsNullOrWhiteSpace(attachableAttempt.LastObservedMessage)
+                ? "Attached to the existing startup attempt."
+                : attachableAttempt.LastObservedMessage;
+            context.Reporter.Report(
+                LaunchUiPresenter.MapStartupStageToSplashStage(context.LastStage),
+                context.LastStageMessage);
+            context.PublishCoordinatorStatus(true, false, false);
+
+            if (startupSuccessTracker.TryResolve(context.LastStage, out var attachedSuccessState))
+            {
+                context.WindowsClosingByOrchestrator = true;
+                context.StartupAttemptRegistry.MarkOwnedSucceeded(attachedSuccessState.Stage, attachedSuccessState.Message);
+                await LaunchUiPresenter.CloseWindowsAsync(context.SplashWindow, context.LoadingDetailsWindow).ConfigureAwait(false);
+                return new LaunchPhaseResult(
+                    LaunchPhaseStatus.Completed,
+                    LaunchResultBuilder.Build(
+                        true,
+                        "launch",
+                        attachedSuccessState.Code,
+                        attachedSuccessState.Message,
+                        LaunchResultBuilder.MergeDetails(
+                            context.LauncherContextDetails,
+                            LaunchAttemptDetails.Build(
+                                context.TrackedAttempt,
+                                context.AttachedToExistingAttempt,
+                                context.IpcConnected,
+                                hostProcessAlive: true,
+                                context.LastStage,
+                                context.LastStageMessage,
+                                context.ActivationFailureReason,
+                                softTimeoutShown: false,
+                                recoveryActivationAttempted: false))));
+            }
+
+            if (attachableAttempt.State is StartupAttemptState.SoftTimeout or StartupAttemptState.DetachedWaiting)
+            {
+                context.SoftTimeoutShown = true;
+                context.Reporter.Report("delayed", SoftTimeoutStatusMessage);
+                context.LoadingState = HostStartupMonitor.BuildDelayedLoadingState(
+                    context.LoadingState,
+                    SoftTimeoutStatusMessage,
+                    SoftTimeoutDetailsMessage,
+                    context.TrackedAttempt!.StartedAtUtc);
+                context.LoadingDetailsWindow?.UpdateLoadingState(context.LoadingState);
+            }
+
+            launchOutcome = HostLaunchOutcome.FromProcess(
+                attachedProcess!,
+                LaunchResultBuilder.Build(
+                    true,
+                    "launchHost",
+                    "attached_attempt",
+                    "Attached to an existing startup attempt.",
+                    LaunchAttemptDetails.Build(
+                        context.TrackedAttempt,
+                        context.AttachedToExistingAttempt,
+                        context.IpcConnected,
+                        hostProcessAlive: true,
+                        context.LastStage,
+                        context.LastStageMessage,
+                        context.ActivationFailureReason,
+                        context.SoftTimeoutShown,
+                        recoveryActivationAttempted: false)),
+                LaunchAttemptDetails.Build(
+                    context.TrackedAttempt,
+                    context.AttachedToExistingAttempt,
+                    context.IpcConnected,
+                    hostProcessAlive: true,
+                    context.LastStage,
+                    context.LastStageMessage,
+                    context.ActivationFailureReason,
+                    context.SoftTimeoutShown,
+                    recoveryActivationAttempted: false));
+        }
+        else
+        {
+            launchOutcome = await _hostLaunchService.LaunchAsync(context).ConfigureAwait(false);
+        }
+
+        context.LaunchOutcome = launchOutcome;
+
+        if (!launchOutcome.Result.Success)
+        {
+            return new LaunchPhaseResult(
+                LaunchPhaseStatus.Completed,
+                LaunchResultBuilder.WithAdditionalDetails(launchOutcome.Result, context.LauncherContextDetails));
+        }
+
+        if (launchOutcome.ImmediateResult is not null)
+        {
+            context.WindowsClosingByOrchestrator = true;
+            await LaunchUiPresenter.CloseWindowsAsync(context.SplashWindow, context.LoadingDetailsWindow).ConfigureAwait(false);
+            return new LaunchPhaseResult(
+                LaunchPhaseStatus.Completed,
+                LaunchResultBuilder.WithAdditionalDetails(launchOutcome.ImmediateResult, context.LauncherContextDetails));
+        }
+
+        if (launchOutcome.Process is null)
+        {
+            return new LaunchPhaseResult(
+                LaunchPhaseStatus.Completed,
+                LaunchResultBuilder.Build(
+                    success: false,
+                    stage: "launch",
+                    code: "host_start_failed",
+                    message: "Host launch did not create a process.",
+                    details: LaunchResultBuilder.MergeDetails(
+                        context.LauncherContextDetails,
+                        LaunchResultBuilder.MergeDetails(
+                            launchOutcome.Details,
+                            LaunchAttemptDetails.Build(
+                                context.TrackedAttempt,
+                                context.AttachedToExistingAttempt,
+                                context.IpcConnected,
+                                hostProcessAlive: false,
+                                context.LastStage,
+                                context.LastStageMessage,
+                                context.ActivationFailureReason,
+                                context.SoftTimeoutShown,
+                                recoveryActivationAttempted: false)))));
+        }
+
+        if (!context.AttachedToExistingAttempt)
+        {
+            var reservedAttempt = context.StartupAttemptRegistry.GetOwnedAttempt();
+            context.TrackedAttempt = reservedAttempt is { ReservedBeforeHostStart: true }
+                ? context.StartupAttemptRegistry.AssignOwnedHostProcess(
+                    launchOutcome.Process.Id,
+                    context.LastStage,
+                    context.LastStageMessage)
+                : context.StartupAttemptRegistry.StartOwnedAttempt(
+                    launchOutcome.Process.Id,
+                    context.CommandContext.LaunchSource,
+                    startupSuccessTracker.PolicyKey,
+                    context.LastStage,
+                    context.LastStageMessage);
+            context.PublishCoordinatorStatus(true, false, false);
+        }
+
+        return new LaunchPhaseResult(LaunchPhaseStatus.Continue);
+    }
+}