feat: implement gitea_comment and discord_reply tools

agent/tools/discord_reply.py

@@ -1,5 +1,32 @@
-"""Discord message tool. Phase 2 implementation."""
+"""Discord 채널/스레드 메시지 전송 도구."""
+from __future__ import annotations
+
+import asyncio
+import logging
+import os
+from typing import Any
+
+from agent.utils.discord_client import get_discord_client
+
+logger = logging.getLogger(__name__)
 
 
-def discord_reply(message: str) -> dict:
-    raise NotImplementedError("Phase 2")
+def discord_reply(message: str) -> dict[str, Any]:
+    if not message.strip():
+        return {"success": False, "error": "빈 메시지는 전송할 수 없습니다."}
+
+    channel_id = os.environ.get("DISCORD_CHANNEL_ID", "")
+    if not channel_id:
+        return {"success": False, "error": "DISCORD_CHANNEL_ID가 설정되지 않았습니다."}
+
+    client = get_discord_client()
+
+    try:
+        result = asyncio.run(
+            client.send_message(channel_id=channel_id, content=message)
+        )
+        logger.info("Sent Discord message to channel %s", channel_id)
+        return {"success": True, "message_id": result.get("id")}
+    except Exception as e:
+        logger.exception("Failed to send Discord message")
+        return {"success": False, "error": str(e)}

agent/tools/gitea_comment.py

@@ -1,5 +1,40 @@
-"""Gitea issue/PR comment tool. Phase 2 implementation."""
+"""Gitea 이슈/PR 코멘트 작성 도구."""
+from __future__ import annotations
+
+import asyncio
+import logging
+import os
+from typing import Any
+
+from agent.utils.gitea_client import get_gitea_client
+
+logger = logging.getLogger(__name__)
 
 
-def gitea_comment(message: str, issue_number: int) -> dict:
-    raise NotImplementedError("Phase 2")
+def _get_repo_info() -> tuple[str, str]:
+    owner = os.environ.get("DEFAULT_REPO_OWNER", "quant")
+    repo = os.environ.get("DEFAULT_REPO_NAME", "galaxis-po")
+    return owner, repo
+
+
+def gitea_comment(message: str, issue_number: int) -> dict[str, Any]:
+    if not issue_number or issue_number <= 0:
+        return {"success": False, "error": "유효한 issue_number가 필요합니다."}
+
+    if not message.strip():
+        return {"success": False, "error": "빈 메시지는 작성할 수 없습니다."}
+
+    owner, repo = _get_repo_info()
+    client = get_gitea_client()
+
+    try:
+        result = asyncio.run(
+            client.create_issue_comment(
+                owner=owner, repo=repo, issue_number=issue_number, body=message
+            )
+        )
+        logger.info("Posted comment on %s/%s#%d", owner, repo, issue_number)
+        return {"success": True, "comment_id": result.get("id")}
+    except Exception as e:
+        logger.exception("Failed to post comment on %s/%s#%d", owner, repo, issue_number)
+        return {"success": False, "error": str(e)}

agent/utils/discord_client.py

@@ -1,9 +1,45 @@
-"""Discord bot integration. Phase 2 implementation."""
+"""Discord REST API 클라이언트."""
+from __future__ import annotations
+
+import logging
+import os
+
+import httpx
+
+logger = logging.getLogger(__name__)
+
+DISCORD_API_BASE = "https://discord.com/api/v10"
 
 
 class DiscordClient:
-    async def send_message(self, channel_id: str, content: str) -> dict:
-        raise NotImplementedError("Phase 2")
+    def __init__(self, token: str):
+        self.token = token
+        self._client = httpx.AsyncClient(
+            base_url=DISCORD_API_BASE,
+            headers={"Authorization": f"Bot {self.token}"},
+            timeout=15.0,
+        )
 
-    async def send_thread_reply(self, channel_id, thread_id, content) -> dict:
-        raise NotImplementedError("Phase 2")
+    async def send_message(self, channel_id: str, content: str) -> dict:
+        resp = await self._client.post(
+            f"/channels/{channel_id}/messages",
+            json={"content": content},
+        )
+        resp.raise_for_status()
+        return resp.json()
+
+    async def send_thread_reply(self, channel_id: str, thread_id: str, content: str) -> dict:
+        return await self.send_message(channel_id=thread_id, content=content)
+
+    async def close(self):
+        await self._client.aclose()
+
+
+_client: DiscordClient | None = None
+
+
+def get_discord_client() -> DiscordClient:
+    global _client
+    if _client is None:
+        _client = DiscordClient(token=os.environ.get("DISCORD_TOKEN", ""))
+    return _client

tests/test_discord_reply.py

@@ -0,0 +1,48 @@
+import pytest
+from unittest.mock import AsyncMock, MagicMock, patch
+
+
+def test_discord_reply_success():
+    mock_client = MagicMock()
+    mock_client.send_message = AsyncMock(
+        return_value={"id": "123456", "content": "test message"}
+    )
+
+    with patch(
+        "agent.tools.discord_reply.get_discord_client", return_value=mock_client
+    ), patch.dict("os.environ", {"DISCORD_CHANNEL_ID": "999"}):
+        from agent.tools.discord_reply import discord_reply
+        result = discord_reply(message="test message")
+        assert result["success"] is True
+        mock_client.send_message.assert_called_once()
+
+
+def test_discord_reply_empty_message():
+    from agent.tools.discord_reply import discord_reply
+    result = discord_reply(message="")
+    assert result["success"] is False
+
+
+def test_discord_reply_no_channel_configured():
+    with patch.dict("os.environ", {"DISCORD_CHANNEL_ID": ""}, clear=False):
+        from agent.tools.discord_reply import discord_reply
+        result = discord_reply(message="test")
+        assert result["success"] is False
+        assert "DISCORD" in result.get("error", "")
+
+
+@pytest.mark.asyncio
+async def test_discord_client_send_message():
+    import httpx
+    mock_resp = MagicMock(spec=httpx.Response)
+    mock_resp.status_code = 200
+    mock_resp.json.return_value = {"id": "msg123", "content": "hello"}
+    mock_resp.raise_for_status = MagicMock()
+
+    from agent.utils.discord_client import DiscordClient
+    client = DiscordClient(token="test-token")
+    client._client.post = AsyncMock(return_value=mock_resp)
+
+    result = await client.send_message(channel_id="999", content="hello")
+    assert result["id"] == "msg123"
+    client._client.post.assert_called_once()

tests/test_gitea_comment.py

@@ -0,0 +1,48 @@
+import pytest
+from unittest.mock import AsyncMock, patch, MagicMock
+
+
+def test_gitea_comment_success():
+    mock_client = MagicMock()
+    mock_client.create_issue_comment = AsyncMock(
+        return_value={"id": 42, "body": "test comment"}
+    )
+
+    with patch(
+        "agent.tools.gitea_comment.get_gitea_client", return_value=mock_client
+    ), patch(
+        "agent.tools.gitea_comment._get_repo_info",
+        return_value=("quant", "galaxis-po"),
+    ):
+        from agent.tools.gitea_comment import gitea_comment
+        result = gitea_comment(message="test comment", issue_number=1)
+        assert result["success"] is True
+        assert result["comment_id"] == 42
+
+
+def test_gitea_comment_missing_issue_number():
+    from agent.tools.gitea_comment import gitea_comment
+    result = gitea_comment(message="test", issue_number=0)
+    assert result["success"] is False
+    assert "issue_number" in result["error"]
+
+
+def test_gitea_comment_api_error():
+    import httpx
+    mock_client = MagicMock()
+    mock_client.create_issue_comment = AsyncMock(
+        side_effect=httpx.HTTPStatusError(
+            "404", request=MagicMock(), response=MagicMock(status_code=404)
+        )
+    )
+
+    with patch(
+        "agent.tools.gitea_comment.get_gitea_client", return_value=mock_client
+    ), patch(
+        "agent.tools.gitea_comment._get_repo_info",
+        return_value=("quant", "galaxis-po"),
+    ):
+        from agent.tools.gitea_comment import gitea_comment
+        result = gitea_comment(message="test", issue_number=999)
+        assert result["success"] is False
+        assert "error" in result