chore: initialize qiming workspace repository

qimingcode/packages/opencode/src/bus/bus-event.ts

@@ -0,0 +1,37 @@
+import z from "zod"
+import { Schema } from "effect"
+import { zodObject } from "@/util/effect-zod"
+
+export type Definition<Type extends string = string, Properties extends Schema.Top = Schema.Top> = {
+  type: Type
+  properties: Properties
+}
+
+const registry = new Map<string, Definition>()
+
+export function define<Type extends string, Properties extends Schema.Top>(
+  type: Type,
+  properties: Properties,
+): Definition<Type, Properties> {
+  const result = { type, properties }
+  registry.set(type, result)
+  return result
+}
+
+export function payloads() {
+  return registry
+    .entries()
+    .map(([type, def]) => {
+      return z
+        .object({
+          type: z.literal(type),
+          properties: zodObject(def.properties),
+        })
+        .meta({
+          ref: `Event.${def.type}`,
+        })
+    })
+    .toArray()
+}
+
+export * as BusEvent from "./bus-event"

qimingcode/packages/opencode/src/bus/global.ts

@@ -0,0 +1,12 @@
+import { EventEmitter } from "events"
+
+export type GlobalEvent = {
+  directory?: string
+  project?: string
+  workspace?: string
+  payload: any
+}
+
+export const GlobalBus = new EventEmitter<{
+  event: [GlobalEvent]
+}>()

qimingcode/packages/opencode/src/bus/index.ts

@@ -0,0 +1,188 @@
+import { Effect, Exit, Layer, PubSub, Scope, Context, Stream, Schema } from "effect"
+import { EffectBridge } from "@/effect"
+import { Log } from "../util"
+import { BusEvent } from "./bus-event"
+import { GlobalBus } from "./global"
+import { InstanceState } from "@/effect"
+import { makeRuntime } from "@/effect/run-service"
+
+const log = Log.create({ service: "bus" })
+
+type BusProperties<D extends BusEvent.Definition<string, Schema.Top>> = Schema.Schema.Type<D["properties"]>
+
+export const InstanceDisposed = BusEvent.define(
+  "server.instance.disposed",
+  Schema.Struct({
+    directory: Schema.String,
+  }),
+)
+
+type Payload<D extends BusEvent.Definition = BusEvent.Definition> = {
+  type: D["type"]
+  properties: BusProperties<D>
+}
+
+type State = {
+  wildcard: PubSub.PubSub<Payload>
+  typed: Map<string, PubSub.PubSub<Payload>>
+}
+
+export interface Interface {
+  readonly publish: <D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) => Effect.Effect<void>
+  readonly subscribe: <D extends BusEvent.Definition>(def: D) => Stream.Stream<Payload<D>>
+  readonly subscribeAll: () => Stream.Stream<Payload>
+  readonly subscribeCallback: <D extends BusEvent.Definition>(
+    def: D,
+    callback: (event: Payload<D>) => unknown,
+  ) => Effect.Effect<() => void>
+  readonly subscribeAllCallback: (callback: (event: any) => unknown) => Effect.Effect<() => void>
+}
+
+export class Service extends Context.Service<Service, Interface>()("@opencode/Bus") {}
+
+export const layer = Layer.effect(
+  Service,
+  Effect.gen(function* () {
+    const state = yield* InstanceState.make<State>(
+      Effect.fn("Bus.state")(function* (ctx) {
+        const wildcard = yield* PubSub.unbounded<Payload>()
+        const typed = new Map<string, PubSub.PubSub<Payload>>()
+
+        yield* Effect.addFinalizer(() =>
+          Effect.gen(function* () {
+            // Publish InstanceDisposed before shutting down so subscribers see it
+            yield* PubSub.publish(wildcard, {
+              type: InstanceDisposed.type,
+              properties: { directory: ctx.directory },
+            })
+            yield* PubSub.shutdown(wildcard)
+            for (const ps of typed.values()) {
+              yield* PubSub.shutdown(ps)
+            }
+          }),
+        )
+
+        return { wildcard, typed }
+      }),
+    )
+
+    function getOrCreate<D extends BusEvent.Definition>(state: State, def: D) {
+      return Effect.gen(function* () {
+        let ps = state.typed.get(def.type)
+        if (!ps) {
+          ps = yield* PubSub.unbounded<Payload>()
+          state.typed.set(def.type, ps)
+        }
+        return ps as unknown as PubSub.PubSub<Payload<D>>
+      })
+    }
+
+    function publish<D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) {
+      return Effect.gen(function* () {
+        const s = yield* InstanceState.get(state)
+        const payload: Payload = { type: def.type, properties }
+        log.info("publishing", { type: def.type })
+
+        const ps = s.typed.get(def.type)
+        if (ps) yield* PubSub.publish(ps, payload)
+        yield* PubSub.publish(s.wildcard, payload)
+
+        const dir = yield* InstanceState.directory
+        const context = yield* InstanceState.context
+        const workspace = yield* InstanceState.workspaceID
+
+        GlobalBus.emit("event", {
+          directory: dir,
+          project: context.project.id,
+          workspace,
+          payload,
+        })
+      })
+    }
+
+    function subscribe<D extends BusEvent.Definition>(def: D): Stream.Stream<Payload<D>> {
+      log.info("subscribing", { type: def.type })
+      return Stream.unwrap(
+        Effect.gen(function* () {
+          const s = yield* InstanceState.get(state)
+          const ps = yield* getOrCreate(s, def)
+          return Stream.fromPubSub(ps)
+        }),
+      ).pipe(Stream.ensuring(Effect.sync(() => log.info("unsubscribing", { type: def.type }))))
+    }
+
+    function subscribeAll(): Stream.Stream<Payload> {
+      log.info("subscribing", { type: "*" })
+      return Stream.unwrap(
+        Effect.gen(function* () {
+          const s = yield* InstanceState.get(state)
+          return Stream.fromPubSub(s.wildcard)
+        }),
+      ).pipe(Stream.ensuring(Effect.sync(() => log.info("unsubscribing", { type: "*" }))))
+    }
+
+    function on<T>(pubsub: PubSub.PubSub<T>, type: string, callback: (event: T) => unknown) {
+      return Effect.gen(function* () {
+        log.info("subscribing", { type })
+        const bridge = yield* EffectBridge.make()
+        const scope = yield* Scope.make()
+        const subscription = yield* Scope.provide(scope)(PubSub.subscribe(pubsub))
+
+        yield* Scope.provide(scope)(
+          Stream.fromSubscription(subscription).pipe(
+            Stream.runForEach((msg) =>
+              Effect.tryPromise({
+                try: () => Promise.resolve().then(() => callback(msg)),
+                catch: (cause) => {
+                  log.error("subscriber failed", { type, cause })
+                },
+              }).pipe(Effect.ignore),
+            ),
+            Effect.forkScoped,
+          ),
+        )
+
+        return () => {
+          log.info("unsubscribing", { type })
+          bridge.fork(Scope.close(scope, Exit.void))
+        }
+      })
+    }
+
+    const subscribeCallback = Effect.fn("Bus.subscribeCallback")(function* <D extends BusEvent.Definition>(
+      def: D,
+      callback: (event: Payload<D>) => unknown,
+    ) {
+      const s = yield* InstanceState.get(state)
+      const ps = yield* getOrCreate(s, def)
+      return yield* on(ps, def.type, callback)
+    })
+
+    const subscribeAllCallback = Effect.fn("Bus.subscribeAllCallback")(function* (callback: (event: any) => unknown) {
+      const s = yield* InstanceState.get(state)
+      return yield* on(s.wildcard, "*", callback)
+    })
+
+    return Service.of({ publish, subscribe, subscribeAll, subscribeCallback, subscribeAllCallback })
+  }),
+)
+
+export const defaultLayer = layer
+
+const { runPromise, runSync } = makeRuntime(Service, layer)
+
+// runSync is safe here because the subscribe chain (InstanceState.get, PubSub.subscribe,
+// Scope.make, Effect.forkScoped) is entirely synchronous. If any step becomes async, this will throw.
+export async function publish<D extends BusEvent.Definition>(def: D, properties: BusProperties<D>) {
+  return runPromise((svc) => svc.publish(def, properties))
+}
+
+export function subscribe<D extends BusEvent.Definition>(def: D, callback: (event: Payload<D>) => unknown) {
+  return runSync((svc) => svc.subscribeCallback(def, callback))
+}
+
+export function subscribeAll(callback: (event: any) => unknown) {
+  return runSync((svc) => svc.subscribeAllCallback(callback))
+}
+
+export * as Bus from "."