refactor(opencode): stop legacy v2 event emission (#33993)

packages/opencode/src/session/compaction.ts

@@ -13,14 +13,11 @@ import { Config } from "@/config/config"
 import { NotFoundError } from "@/storage/storage"
 
 import { Effect, Layer, Context } from "effect"
-import * as DateTime from "effect/DateTime"
 import { InstanceState } from "@/effect/instance-state"
 import { isOverflow as overflow, usable } from "./overflow"
 import { serviceUse } from "@opencode-ai/core/effect/service-use"
 import { RuntimeFlags } from "@/effect/runtime-flags"
 import { EventV2Bridge } from "@/event-v2-bridge"
-import { SessionEvent } from "@opencode-ai/core/session/event"
-import { SessionMessage } from "@opencode-ai/core/session/message"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import { ModelV2 } from "@opencode-ai/core/model"
 import { buildPrompt } from "@opencode-ai/core/session/compaction"
@@ -355,18 +352,6 @@ export const layer = Layer.effect(
         stripMedia: true,
         toolOutputMaxChars: TOOL_OUTPUT_MAX_CHARS,
       })
-      const tailIndex = selected.tail_start_id
-        ? history.findIndex((message) => message.info.id === selected.tail_start_id)
-        : -1
-      const recent =
-        tailIndex < 0
-          ? ""
-          : JSON.stringify(
-              yield* MessageV2.toModelMessagesEffect(history.slice(tailIndex), model, {
-                stripMedia: true,
-                toolOutputMaxChars: TOOL_OUTPUT_MAX_CHARS,
-              }),
-            )
       const ctx = yield* InstanceState.context
       const msg: SessionV1.Assistant = {
         id: MessageID.ascending(),
@@ -520,25 +505,6 @@ export const layer = Layer.effect(
 
       if (processor.message.error) return "stop"
       if (result === "continue") {
-        const summary = summaryText(
-          (yield* session.messages({ sessionID: input.sessionID }).pipe(Effect.orDie)).find(
-            (item) => item.info.id === msg.id,
-          ) ?? {
-            info: msg,
-            parts: [],
-          },
-        )
-        if (flags.experimentalEventSystem) {
-          if (summary)
-            yield* events.publish(SessionEvent.Compaction.Ended, {
-              sessionID: input.sessionID,
-              messageID: SessionMessage.ID.make(input.parentID),
-              timestamp: DateTime.makeUnsafe(Date.now()),
-              reason: input.auto ? "auto" : "manual",
-              text: summary ?? "",
-              recent,
-            })
-        }
         yield* events.publish(Event.Compacted, { sessionID: input.sessionID })
       }
       return result
@@ -567,14 +533,6 @@ export const layer = Layer.effect(
         auto: input.auto,
         overflow: input.overflow,
       })
-      if (flags.experimentalEventSystem) {
-        yield* events.publish(SessionEvent.Compaction.Started, {
-          sessionID: input.sessionID,
-          messageID: SessionMessage.ID.make(msg.id),
-          timestamp: DateTime.makeUnsafe(Date.now()),
-          reason: input.auto ? "auto" : "manual",
-        })
-      }
     })
 
     return Service.of({