refactor(server): canonicalize service API (#31049)

packages/opencode/src/cli/tui/editor.ts

@@ -0,0 +1,43 @@
+import { defer } from "@/util/defer"
+import { existsSync } from "node:fs"
+import { rm } from "node:fs/promises"
+import { tmpdir } from "node:os"
+import { join } from "node:path"
+import { CliRenderer } from "@opentui/core"
+import { Filesystem } from "@/util/filesystem"
+import { Process } from "@/util/process"
+
+export async function open(opts: { value: string; renderer: CliRenderer; cwd?: string }): Promise<string | undefined> {
+  const editor = process.env["VISUAL"] || process.env["EDITOR"]
+  if (!editor) return
+
+  const filepath = join(tmpdir(), `${Date.now()}.md`)
+  await using _ = defer(async () => rm(filepath, { force: true }))
+
+  // In attach mode the server's project directory may not exist locally.
+  // Fall back to the local process cwd so the editor can still spawn.
+  const cwd = opts.cwd && existsSync(opts.cwd) ? opts.cwd : process.cwd()
+
+  await Filesystem.write(filepath, opts.value)
+  opts.renderer.suspend()
+  opts.renderer.currentRenderBuffer.clear()
+  try {
+    const parts = editor.split(" ")
+    const proc = Process.spawn([...parts, filepath], {
+      cwd,
+      stdin: "inherit",
+      stdout: "inherit",
+      stderr: "inherit",
+      shell: process.platform === "win32",
+    })
+    await proc.exited
+    const content = await Filesystem.readText(filepath)
+    return content || undefined
+  } finally {
+    opts.renderer.currentRenderBuffer.clear()
+    opts.renderer.resume()
+    opts.renderer.requestRender()
+  }
+}
+
+export * as Editor from "./editor"