Add CLI server and move UI to HTTP API

packages/cli/src/workspaces/manager.ts

@@ -0,0 +1,148 @@
+import path from "path"
+import { EventBus } from "../events/bus"
+import { ConfigStore } from "../config/store"
+import { BinaryRegistry } from "../config/binaries"
+import { FileSystemBrowser } from "../filesystem/browser"
+import { WorkspaceDescriptor, WorkspaceFileResponse, FileSystemEntry } from "../api-types"
+import { WorkspaceRuntime } from "./runtime"
+
+interface WorkspaceManagerOptions {
+  rootDir: string
+  configStore: ConfigStore
+  binaryRegistry: BinaryRegistry
+  eventBus: EventBus
+}
+
+interface WorkspaceRecord extends WorkspaceDescriptor {}
+
+export class WorkspaceManager {
+  private readonly workspaces = new Map<string, WorkspaceRecord>()
+  private readonly runtime: WorkspaceRuntime
+
+  constructor(private readonly options: WorkspaceManagerOptions) {
+    this.runtime = new WorkspaceRuntime(this.options.eventBus)
+  }
+
+  list(): WorkspaceDescriptor[] {
+    return Array.from(this.workspaces.values())
+  }
+
+  get(id: string): WorkspaceDescriptor | undefined {
+    return this.workspaces.get(id)
+  }
+
+  listFiles(workspaceId: string, relativePath = "."): FileSystemEntry[] {
+    const workspace = this.requireWorkspace(workspaceId)
+    const browser = new FileSystemBrowser({ rootDir: workspace.path })
+    return browser.list(relativePath)
+  }
+
+  readFile(workspaceId: string, relativePath: string): WorkspaceFileResponse {
+    const workspace = this.requireWorkspace(workspaceId)
+    const browser = new FileSystemBrowser({ rootDir: workspace.path })
+    const contents = browser.readFile(relativePath)
+    return {
+      workspaceId,
+      relativePath,
+      contents,
+    }
+  }
+
+  async create(folder: string, name?: string): Promise<WorkspaceDescriptor> {
+    const id = `${Date.now().toString(36)}`
+    const binary = this.options.binaryRegistry.resolveDefault()
+    const workspacePath = path.isAbsolute(folder) ? folder : path.resolve(this.options.rootDir, folder)
+
+    const descriptor: WorkspaceRecord = {
+      id,
+      path: workspacePath,
+      name,
+      status: "starting",
+      binaryId: binary.id,
+      binaryLabel: binary.label,
+      binaryVersion: binary.version,
+      createdAt: new Date().toISOString(),
+      updatedAt: new Date().toISOString(),
+    }
+
+    this.workspaces.set(id, descriptor)
+    this.options.eventBus.publish({ type: "workspace.created", workspace: descriptor })
+
+    const environment = this.options.configStore.get().preferences.environmentVariables ?? {}
+
+    try {
+      const { pid, port } = await this.runtime.launch({
+        workspaceId: id,
+        folder: workspacePath,
+        binaryPath: binary.path,
+        environment,
+        onExit: (info) => this.handleProcessExit(info.workspaceId, info),
+      })
+
+      descriptor.pid = pid
+      descriptor.port = port
+      descriptor.status = "ready"
+      descriptor.updatedAt = new Date().toISOString()
+      this.options.eventBus.publish({ type: "workspace.started", workspace: descriptor })
+      return descriptor
+    } catch (error) {
+      descriptor.status = "error"
+      descriptor.error = error instanceof Error ? error.message : String(error)
+      descriptor.updatedAt = new Date().toISOString()
+      this.options.eventBus.publish({ type: "workspace.error", workspace: descriptor })
+      throw error
+    }
+  }
+
+  async delete(id: string): Promise<WorkspaceDescriptor | undefined> {
+    const workspace = this.workspaces.get(id)
+    if (!workspace) return undefined
+
+    const wasRunning = Boolean(workspace.pid)
+    if (wasRunning) {
+      await this.runtime.stop(id).catch(() => {})
+    }
+
+    this.workspaces.delete(id)
+    if (!wasRunning) {
+      this.options.eventBus.publish({ type: "workspace.stopped", workspaceId: id })
+    }
+    return workspace
+  }
+
+  async shutdown() {
+    for (const [id] of this.workspaces) {
+      if (this.workspaces.get(id)?.pid) {
+        await this.runtime.stop(id).catch(() => {})
+      }
+    }
+    this.workspaces.clear()
+  }
+
+  private requireWorkspace(id: string): WorkspaceRecord {
+    const workspace = this.workspaces.get(id)
+    if (!workspace) {
+      throw new Error("Workspace not found")
+    }
+    return workspace
+  }
+
+  private handleProcessExit(workspaceId: string, info: { code: number | null; requested: boolean }) {
+    const workspace = this.workspaces.get(workspaceId)
+    if (!workspace) return
+
+    workspace.pid = undefined
+    workspace.port = undefined
+    workspace.updatedAt = new Date().toISOString()
+
+    if (info.requested || info.code === 0) {
+      workspace.status = "stopped"
+      workspace.error = undefined
+      this.options.eventBus.publish({ type: "workspace.stopped", workspaceId })
+    } else {
+      workspace.status = "error"
+      workspace.error = `Process exited with code ${info.code}`
+      this.options.eventBus.publish({ type: "workspace.error", workspace })
+    }
+  }
+}