refactor: collapse env barrel into env/index.ts (#22900)

Author: kitlangton

packages/opencode/src/env/env.ts

@@ -1 +1,37 @@
-export * as Env from "./env"
+import { Context, Effect, Layer } from "effect"
+import { InstanceState } from "@/effect"
+
+type State = Record<string, string | undefined>
+
+export interface Interface {
+  readonly get: (key: string) => Effect.Effect<string | undefined>
+  readonly all: () => Effect.Effect<State>
+  readonly set: (key: string, value: string) => Effect.Effect<void>
+  readonly remove: (key: string) => Effect.Effect<void>
+}
+
+export class Service extends Context.Service<Service, Interface>()("@opencode/Env") {}
+
+export const layer = Layer.effect(
+  Service,
+  Effect.gen(function* () {
+    const state = yield* InstanceState.make<State>(Effect.fn("Env.state")(() => Effect.succeed({ ...process.env })))
+
+    const get = Effect.fn("Env.get")((key: string) => InstanceState.use(state, (env) => env[key]))
+    const all = Effect.fn("Env.all")(() => InstanceState.get(state))
+    const set = Effect.fn("Env.set")(function* (key: string, value: string) {
+      const env = yield* InstanceState.get(state)
+      env[key] = value
+    })
+    const remove = Effect.fn("Env.remove")(function* (key: string) {
+      const env = yield* InstanceState.get(state)
+      delete env[key]
+    })
+
+    return Service.of({ get, all, set, remove })
+  }),
+)
+
+export const defaultLayer = layer
+
+export * as Env from "."