Reconcile queue state on startup, remove age-based staleness check

On boot, query Coder for running workspaces and re-adopt them into the
active queue. This prevents 409 conflicts after restarts and ensures
callbacks still work for in-flight tasks.

On 409: only delete stopped/failed workspaces. Running workspaces are
adopted — never killed based on age.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/index.ts

@@ -84,6 +84,11 @@ if (maintenanceRepos.length > 0) {
 // Start
 // ---------------------------------------------------------------------------
 
+// Reconcile queue state with Coder before accepting traffic
+queue.reconcile().catch((err) =>
+  console.error("[startup] reconcile failed:", err),
+);
+
 serve({ fetch: app.fetch, port: config.port }, (info) => {
   console.log(`SDLC Orchestrator listening on :${info.port} (concurrency: ${concurrency})`);
 });

src/queue.ts

@@ -35,6 +35,34 @@ export class TaskQueue {
     this.concurrency = concurrency;
   }
 
+  /**
+   * Reconcile in-memory state with Coder on startup.
+   * Re-adopts any running workspaces so callbacks and dedup work correctly.
+   */
+  async reconcile(): Promise<void> {
+    const workspaces = await this.coder.listWorkspaces();
+    const runningStatuses = ["starting", "running", "started"];
+
+    for (const ws of workspaces) {
+      if (!runningStatuses.includes(ws.latestBuildStatus)) continue;
+
+      // Only adopt workspaces that match our naming pattern: {taskType}-{repo}-{issue}
+      const parts = ws.name.match(/^(.+?)-(.+?)-(\d+)$/);
+      if (!parts) continue;
+
+      this.active.set(ws.name, {
+        workspaceId: ws.id,
+        workspaceName: ws.name,
+        startedAt: new Date(), // approximate — we don't know the real start time
+      });
+      console.log(`[queue] reconciled: adopted workspace "${ws.name}" (status: ${ws.latestBuildStatus})`);
+    }
+
+    if (this.active.size > 0) {
+      console.log(`[queue] reconcile complete: ${this.active.size} active workspace(s) adopted`);
+    }
+  }
+
   /** Build a dedup key for a task. */
   static key(task: TaskRequest): string {
     return `${task.taskType}-${task.giteaRepo}-${task.issueNumber}`;

src/services/coder.ts

@@ -50,16 +50,30 @@ export class CoderClient {
       },
     );
 
-    // Handle 409 conflict — stale workspace from a previous orchestrator instance
+    // Handle 409 conflict — workspace with this name already exists.
+    // This can happen if the orchestrator restarted and lost in-memory state.
     if (res.status === 409) {
-      console.log(`[coder] workspace "${name}" already exists — deleting stale workspace and retrying`);
       const existing = await this.findWorkspaceByName(name);
-      if (existing) {
-        await this.deleteWorkspace(existing.id);
-        // Wait for deletion to propagate
-        await new Promise((resolve) => setTimeout(resolve, 5000));
+      if (!existing) {
+        throw new Error(`Coder 409 but workspace "${name}" not found — possible race condition`);
       }
-      return this.createWorkspace(task);
+
+      const stoppedStatuses = ["stopped", "failed", "canceled", "deleted"];
+      if (stoppedStatuses.includes(existing.latestBuildStatus)) {
+        // Workspace is done — safe to replace
+        console.log(
+          `[coder] workspace "${name}" exists but ${existing.latestBuildStatus} — deleting and retrying`,
+        );
+        await this.deleteWorkspace(existing.id);
+        await new Promise((resolve) => setTimeout(resolve, 5000));
+        return this.createWorkspace(task);
+      }
+
+      // Workspace is still running — adopt it, don't kill it
+      console.log(
+        `[coder] workspace "${name}" is still ${existing.latestBuildStatus} — adopting existing workspace`,
+      );
+      return { id: existing.id, name: existing.name };
     }
 
     if (!res.ok) {
@@ -107,7 +121,42 @@ export class CoderClient {
     }
   }
 
-  async findWorkspaceByName(name: string): Promise<{ id: string } | null> {
+  /**
+   * List all workspaces owned by the authenticated user.
+   * Used at startup to reconcile in-memory state with Coder.
+   */
+  async listWorkspaces(): Promise<
+    Array<{ id: string; name: string; latestBuildStatus: string }>
+  > {
+    const res = await fetch(
+      `${this.baseUrl}/api/v2/workspaces?q=owner:me`,
+      {
+        headers: { "Coder-Session-Token": this.token },
+      },
+    );
+
+    if (!res.ok) return [];
+
+    const data = (await res.json()) as {
+      workspaces: Array<{
+        id: string;
+        name: string;
+        latest_build: { status: string };
+      }>;
+    };
+    return (data.workspaces ?? []).map((w) => ({
+      id: w.id,
+      name: w.name,
+      latestBuildStatus: w.latest_build?.status ?? "unknown",
+    }));
+  }
+
+  async findWorkspaceByName(name: string): Promise<{
+    id: string;
+    name: string;
+    createdAt: string;
+    latestBuildStatus: string;
+  } | null> {
     const res = await fetch(
       `${this.baseUrl}/api/v2/workspaces?q=name:${encodeURIComponent(name)}`,
       {
@@ -119,8 +168,21 @@ export class CoderClient {
 
     if (!res.ok) return null;
 
-    const data = (await res.json()) as { workspaces: Array<{ id: string; name: string }> };
+    const data = (await res.json()) as {
+      workspaces: Array<{
+        id: string;
+        name: string;
+        created_at: string;
+        latest_build: { status: string };
+      }>;
+    };
     const match = data.workspaces?.find((w) => w.name === name);
-    return match ? { id: match.id } : null;
+    if (!match) return null;
+    return {
+      id: match.id,
+      name: match.name,
+      createdAt: match.created_at,
+      latestBuildStatus: match.latest_build?.status ?? "unknown",
+    };
   }
 }