feat(backend): Django + OpenCode 백엔드 추가 — 5_django_backend/

앱이 기대하는 base-backend 계약(envelope·JWT·/chat/stream SSE)을 그대로 구현. Django 는 로그인·세션 미러(SQLite/PG)·OpenCode 이벤트 번역만 맡고, 답변은 전용 OpenCode 인스턴스(opencode/ workspace, codeassist 에이전트)가 만듦. - accounts: 이메일 로그인, access 60분 / refresh 14일, entra/config 는 501 - chat: 세션 목록·검색·메시지·취소 + POST /chat/stream 어댑터(part.delta→token, idle→usage/done, 클라 끊겨도 턴 감시 태스크가 DB 마무리, 첫 이벤트 60초 타임아웃) - OpenCode 1.18 멀티 프로젝트라 모든 요청에 ?directory= 부착 - docs-lib 에 OpenCode SDK 1.18.6 타입 원본, pytest 32 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-16 21:28:31 +09:00
parent 08fdc1a258
commit 2869985139
49 changed files with 5884 additions and 5 deletions
@@ -0,0 +1,123 @@
+"""세션 미러 API — snap.api.ts 계약. OpenCode 는 가짜로."""
+
+import httpx
+import pytest
+
+from apps.chat.models import ChatMessage, ChatSession
+
+SESSION_KEYS = {"id", "title", "titleLlm", "isGenerating", "createdAt", "updatedAt"}
+MESSAGE_KEYS = {"sessionId", "role", "content", "createdAt", "inputTokens", "outputTokens", "costUsd", "elapsedMs"}
+
+
+class FakeOpencode:
+    def __init__(self):
+        self.n = 0
+        self.aborted = []
+        self.down = False
+
+    def create_session(self):
+        if self.down:
+            raise httpx.ConnectError("refused")
+        self.n += 1
+        return {"id": f"ses_{self.n}", "title": ""}
+
+    def abort_session(self, sid):
+        self.aborted.append(sid)
+        return True
+
+
+@pytest.fixture
+def oc(monkeypatch):
+    fake = FakeOpencode()
+    monkeypatch.setattr("apps.chat.views.opencode_service", fake)
+    return fake
+
+
+def _mk(user, sid="ses_a", **kw):
+    return ChatSession.objects.create(id=sid, user=user, **kw)
+
+
+def test_create_session_mirrors_opencode(auth_api, oc):
+    res = auth_api.post("/api/v1/chat/sessions", {}, format="json")
+    assert res.status_code == 201
+    data = res.json()["data"]
+    assert set(data) == SESSION_KEYS
+    assert data["id"] == "ses_1" and data["isGenerating"] is False and data["titleLlm"] is None
+    assert ChatSession.objects.get(id="ses_1").user.email == "u@x.com"
+
+
+def test_create_session_when_opencode_down_503(auth_api, oc):
+    oc.down = True
+    res = auth_api.post("/api/v1/chat/sessions", {}, format="json")
+    assert res.status_code == 503
+    assert res.json()["code"] == "UPSTREAM_UNAVAILABLE"
+
+
+def test_list_paginated_newest_first_own_only(auth_api, user, django_user_model):
+    other = django_user_model.objects.create_user(username="o@x.com", email="o@x.com", password="x")
+    for i in range(5):
+        _mk(user, f"ses_{i}")
+    _mk(other, "ses_other")
+    res = auth_api.get("/api/v1/chat/sessions?page=1&limit=3")
+    body = res.json()
+    assert [s["id"] for s in body["data"]] == ["ses_4", "ses_3", "ses_2"]
+    assert body["counts"] == 5
+    assert body["meta"] == {
+        "currentPage": 1,
+        "pageSize": 3,
+        "totalItems": 5,
+        "totalPages": 2,
+        "hasNextPage": True,
+        "hasPreviousPage": False,
+    }
+    res2 = auth_api.get("/api/v1/chat/sessions?page=2&limit=3")
+    assert [s["id"] for s in res2.json()["data"]] == ["ses_1", "ses_0"]
+
+
+def test_messages_detail(auth_api, user):
+    s = _mk(user, title_llm="첫 질문")
+    ChatMessage.objects.create(session=s, role="user", content="hi")
+    ChatMessage.objects.create(
+        session=s, role="assistant", content="hello", input_tokens=10, output_tokens=5, cost_usd=0.001, elapsed_ms=1200
+    )
+    res = auth_api.get("/api/v1/chat/sessions/ses_a/messages")
+    data = res.json()["data"]
+    assert set(data) == SESSION_KEYS | {"messages"}
+    assert data["titleLlm"] == "첫 질문"
+    assert [m["role"] for m in data["messages"]] == ["user", "assistant"]
+    assert set(data["messages"][1]) == MESSAGE_KEYS
+    assert data["messages"][1]["inputTokens"] == 10
+    assert data["messages"][0]["inputTokens"] is None
+
+
+def test_messages_of_other_user_404(auth_api, django_user_model):
+    other = django_user_model.objects.create_user(username="o@x.com", email="o@x.com", password="x")
+    _mk(other, "ses_other")
+    assert auth_api.get("/api/v1/chat/sessions/ses_other/messages").status_code == 404
+
+
+def test_search_messages_icontains_own_only(auth_api, user, django_user_model):
+    other = django_user_model.objects.create_user(username="o@x.com", email="o@x.com", password="x")
+    mine = _mk(user, "ses_m")
+    theirs = _mk(other, "ses_t")
+    ChatMessage.objects.create(session=mine, role="user", content="SELECT * FROM mara")
+    ChatMessage.objects.create(session=mine, role="assistant", content="MARA 는 자재 마스터")
+    ChatMessage.objects.create(session=mine, role="user", content="다른 얘기")
+    ChatMessage.objects.create(session=theirs, role="user", content="mara 남의 것")
+    res = auth_api.get("/api/v1/chat/sessions/search?query=mara&page=1&limit=20")
+    body = res.json()
+    assert body["counts"] == 2
+    assert {m["content"] for m in body["data"]} == {"SELECT * FROM mara", "MARA 는 자재 마스터"}
+    assert all(m["sessionId"] == "ses_m" for m in body["data"])
+
+
+def test_search_empty_query_400(auth_api):
+    assert auth_api.get("/api/v1/chat/sessions/search?query=%20").status_code == 400
+
+
+def test_cancel_aborts_and_clears_generating(auth_api, user, oc):
+    _mk(user, is_generating=True)
+    res = auth_api.post("/api/v1/chat/sessions/ses_a/cancel", {}, format="json")
+    assert res.status_code == 200 and res.json()["data"] is None
+    assert oc.aborted == ["ses_a"]
+    assert ChatSession.objects.get(id="ses_a").is_generating is False