- **Bootstrap IoC-based architecture with modular services.**

- **Implement `MlxModelService` for local LLM backend.** - **Introduce `DatabaseService` for MySQL integration.** - **Add `HistoryService` to manage conversation context.** - **Set up CLI interface via `CliUiService`.** - **Establish EventBus for token streaming.** - **Include conversation repository for data persistence.** - **Add environment-based configuration management.** - **Draft IoC architectural plan.**
2026-04-25 01:14:37 +09:00
parent 3b087116c0
commit cd41e9e33e
26 changed files with 693 additions and 4 deletions
@@ -0,0 +1,81 @@
+from __future__ import annotations
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from services.db.conversation_repository import ConversationRepository
+    from services.chat.compact_service import CompactService
+
+
+class HistoryService:
+    """대화 히스토리를 관리하는 서비스."""
+
+    def __init__(
+        self,
+        system_prompt: str,
+        max_turns: int,
+        compact_threshold: int,
+        repository: ConversationRepository | None = None,
+        compact_service: CompactService | None = None,
+    ):
+        self._system_prompt = system_prompt
+        self._max_turns = max_turns
+        self._compact_threshold = compact_threshold
+        self._repository = repository
+        self._compact_service = compact_service
+        self._summary: str | None = None
+        self._turns: list[dict] = []
+        self._conversation_id: int | None = None
+
+        if repository:
+            self._load_or_create()
+
+    # ── DB 초기화 ────────────────────────────────────────────────
+
+    def _load_or_create(self) -> None:
+        conv_id = self._repository.get_latest_conversation_id()
+        if conv_id:
+            summary_id, summary = self._repository.get_latest_summary(conv_id)
+            turns = self._repository.load_turns_after(
+                conv_id, summary_id, self._compact_threshold * 2
+            )
+            self._summary = summary
+            self._turns = turns
+            self._conversation_id = conv_id
+        else:
+            self._conversation_id = self._repository.create_conversation()
+
+    # ── 공개 인터페이스 ───────────────────────────────────────────
+
+    def add(self, role: str, content: str) -> None:
+        self._turns.append({"role": role, "content": content})
+        if self._repository and self._conversation_id:
+            self._repository.save_message(self._conversation_id, role, content)
+        if role == "assistant":
+            self._maybe_compact()
+
+    def get(self) -> list[dict]:
+        msgs = [{"role": "system", "content": self._system_prompt}]
+        if self._summary:
+            msgs.append({"role": "system", "content": f"[이전 대화 요약]\n{self._summary}"})
+        msgs.extend(self._turns)
+        return msgs
+
+    def reset(self, new_conversation_id: int) -> None:
+        self._summary = None
+        self._turns = []
+        self._conversation_id = new_conversation_id
+
+    # ── 내부 ─────────────────────────────────────────────────────
+
+    def _maybe_compact(self) -> None:
+        if not self._compact_service or len(self._turns) <= self._compact_threshold:
+            return
+
+        mid = len(self._turns) // 2
+        old_turns, self._turns = self._turns[:mid], self._turns[mid:]
+
+        print("\n[대화 내용을 압축하는 중...]\n", flush=True)
+        self._summary = self._compact_service.summarize(old_turns)
+
+        if self._repository and self._conversation_id:
+            self._repository.save_summary(self._conversation_id, self._summary)