feat(core): improve runtime observability

packages/core/test/event-logger.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, test } from "bun:test"
+import { Effect, Layer, Logger } from "effect"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
+import { Database } from "@opencode-ai/core/database/database"
+import { EventV2 } from "@opencode-ai/core/event"
+import { EventLogger } from "@opencode-ai/core/event-logger"
+import { Agent } from "@opencode-ai/schema/agent"
+import { Catalog } from "@opencode-ai/schema/catalog"
+import { Command } from "@opencode-ai/schema/command"
+import { Config } from "@opencode-ai/schema/config"
+import { McpEvent } from "@opencode-ai/schema/mcp-event"
+
+const UnlistedUpdated = EventV2.ephemeral({ type: "test.updated", schema: {} })
+
+describe("EventLogger", () => {
+  test("logs explicitly listed updated events", async () => {
+    const output = new Array<ReturnType<typeof Logger.formatStructured.log>>()
+    const logger = Logger.map(Logger.formatStructured, (entry) => {
+      output.push(entry)
+    })
+
+    await Effect.gen(function* () {
+      const events = yield* EventV2.Service
+      yield* events.publish(Agent.Event.Updated, {})
+      yield* events.publish(Catalog.Event.Updated, {})
+      yield* events.publish(Command.Event.Updated, {})
+      yield* events.publish(Config.Event.Updated, {})
+      yield* events.publish(McpEvent.StatusChanged, { server: "example" })
+      yield* events.publish(UnlistedUpdated, {})
+    }).pipe(
+      Effect.provide(AppNodeBuilder.build(LayerNode.group([Database.node, EventV2.node, EventLogger.node]))),
+      Effect.provide(Logger.layer([logger])),
+      Effect.scoped,
+      Effect.runPromise,
+    )
+
+    expect(output.map((entry) => entry.message)).toEqual([
+      ["event", { event: expect.objectContaining({ type: "agent.updated" }) }],
+      ["event", { event: expect.objectContaining({ type: "catalog.updated" }) }],
+      ["event", { event: expect.objectContaining({ type: "command.updated" }) }],
+      ["event", { event: expect.objectContaining({ type: "config.updated" }) }],
+    ])
+  })
+})