test: cover HttpApi workspace routing middleware (#25027)

Author: kitlangton

packages/opencode/src/effect/service-use.ts

@@ -0,0 +1,38 @@
+import { Context, Effect } from "effect"
+
+type EffectMethod = (...args: ReadonlyArray<never>) => Effect.Effect<unknown, unknown, unknown>
+
+type ServiceUse<Identifier, Shape> = {
+  readonly [Key in keyof Shape as Shape[Key] extends EffectMethod ? Key : never]: Shape[Key] extends (
+    ...args: infer Args
+  ) => infer Return
+    ? Args extends ReadonlyArray<unknown>
+      ? Return extends Effect.Effect<infer A, infer E, infer R>
+        ? (...args: Args) => Effect.Effect<A, E, R | Identifier>
+        : never
+      : never
+    : never
+}
+
+export const serviceUse = <Identifier, Shape>(tag: Context.Service<Identifier, Shape>) => {
+  // This is the only dynamic boundary: TypeScript knows the accessor shape,
+  // but Proxy property names are runtime values.
+  const access = new Proxy(
+    {},
+    {
+      get: (_, key) => {
+        if (typeof key !== "string") return undefined
+        return (...args: unknown[]) =>
+          tag.use((service) => {
+            // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- Proxy keys are checked at runtime.
+            const method = service[key as keyof Shape]
+            if (typeof method !== "function") return Effect.die(new Error(`Service method not found: ${key}`))
+            // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- ServiceUse exposes only Effect-returning methods.
+            return (method as (...args: unknown[]) => Effect.Effect<unknown, unknown, unknown>)(...args)
+          })
+      },
+    },
+  )
+  // oxlint-disable-next-line typescript-eslint/no-unsafe-type-assertion -- Proxy implements the mapped accessor surface lazily.
+  return access as ServiceUse<Identifier, Shape>
+}

packages/opencode/src/project/project.ts

@@ -17,6 +17,7 @@ import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
 import { zod } from "@/util/effect-zod"
 import { NonNegativeInt, withStatics } from "@/util/schema"
+import { serviceUse } from "@/effect/service-use"
 
 const log = Log.create({ service: "project" })
 
@@ -178,7 +179,7 @@ export const layer: Layer.Layer<
     const readCachedProjectId = Effect.fnUntraced(function* (dir: string) {
       return yield* fs.readFileString(pathSvc.join(dir, "opencode")).pipe(
         Effect.map((x) => x.trim()),
-        Effect.map(ProjectID.make),
+        Effect.map((x) => ProjectID.make(x)),
         Effect.catch(() => Effect.void),
       )
     })
@@ -485,6 +486,8 @@ export const defaultLayer = layer.pipe(
   Layer.provide(NodePath.layer),
 )
 
+export const use = serviceUse(Service)
+
 export function list() {
   return Database.use((db) =>
     db