Merge pull request 'feat: support multiple API keys for LLM providers, allowing automatic key rotation on failure' (#84 ) from feat/refactor/mulit_api_key into feat/refactor/main

Reviewed-on: jiantw83/code-review#84
chore: update ai-review findings [skip ci]
2026-05-12 09:25:46 +00:00 · 2026-05-12 09:25:14 +00:00 · 2026-05-12 09:21:32 +00:00 · 2026-05-12 09:13:49 +00:00 · 2026-05-12 09:01:54 +00:00 · 2026-05-12 08:45:24 +00:00
15 changed files with 826 additions and 161 deletions
@@ -24,5 +24,139 @@
  {
    "location": "app/findings.js",
    "suggestion": "filterFalsePositivesWithAI 拋出的 Error 會被 catch 攔截並降級回傳原始 findings，不會中斷流程"
+  },
+  {
+    "role": "Rex",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "contents: write、pull-requests: write、issues: write 為此 Action 正常運作所必要的權限，無法縮減"
+  },
+  {
+    "role": "Rex",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "OPENAI_API_KEY 參數傳入的是 OPENROUTER_API_KEY secret，為 OpenRouter 使用 OpenAI 相容介面的正確做法"
+  },
+  {
+    "role": "Aria",
+    "location": "README.md",
+    "suggestion": "章節編號連續且正確，無需調整"
+  },
+  {
+    "role": "Maya",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "action.yaml 定義的參數名稱為 GEMINI_API_KEY、GEMINI_BASE_URL、GEMINI_MODEL，與 review.yaml 完全一致，無不匹配問題"
+  },
+  {
+    "role": "Aria",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "review.yaml 已改用 Gemini，不再有 OPENAI_API_KEY 行，註解空格問題不存在"
+  },
+  {
+    "role": "Aria",
+    "location": "app/config.test.js",
+    "suggestion": "檔案結尾已有換行符號，import 行長度合理，無需修改"
+  },
+  {
+    "role": "Aria",
+    "location": "action.yaml",
+    "suggestion": "action.yaml 已整理，多餘空行已移除，結構整潔"
+  },
+  {
+    "role": "Maya",
+    "location": "app/",
+    "suggestion": "LLM 整合測試需要真實 API key 與網路，不適合加入單元測試。llm.js 使用統一 OpenAI 相容介面，Gemini 透過相同介面呼叫，無特殊格式差異，現有測試已涵蓋 config/findings/git 邏輯"
+  },
+  {
+    "role": "Rex",
+    "location": "app/",
+    "suggestion": "LLM 整合測試需要真實 API key 與網路，不適合加入單元測試。llm.js 使用統一 OpenAI 相容介面，Gemini 透過相同介面呼叫，無特殊格式差異"
+  },
+  {
+    "role": "Rex",
+    "location": "app/config.test.js",
+    "suggestion": "import 語句長度合理，無需拆分為多行"
+  },
+  {
+    "role": "Rex",
+    "location": ".gitea/ai-review/findings.json",
+    "suggestion": "findings.json 重複問題由 AI 去重與排除機制處理，不是程式碼問題"
+  },
+  {
+    "role": "Rex",
+    "location": "app/comments.js",
+    "suggestion": "JSON 結尾換行符號為標準做法，不影響任何 JSON 解析器，無相容性問題"
+  },
+  {
+    "location": ".gitea/ai-review/findings.json",
+    "suggestion": "findings.json 是自動產生的問題記錄檔，不應對其內容提出審查問題"
+  },
+  {
+    "role": "Rex",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "切換 LLM 服務提供商的維護建議屬過度謹慎，不是實際程式碼問題"
+  },
+  {
+    "role": "Leo",
+    "location": "app/llm.js",
+    "suggestion": "Authorization 標頭已有 provider !== 'ollama' 判斷，不會無條件加入，已正確處理"
+  },
+  {
+    "role": "Zara",
+    "location": "app/llm.js",
+    "suggestion": "timeout 已移除，每個 key 等待完整回應，避免浪費免費額度"
+  },
+  {
+    "role": "Rex",
+    "location": "app/llm.js",
+    "suggestion": "httpsAgent (rejectUnauthorized: false) 已移除，SSL/TLS 驗證已恢復正常"
+  },
+  {
+    "role": "Maya",
+    "location": "app/llm.js",
+    "suggestion": "llm.test.js 已存在並涵蓋 API Key 輪替的所有異常狀況，包含單 Key、多 Key 輪替、所有 Key 失敗等測試案例"
+  },
+  {
+    "role": "Zara",
+    "location": "app/comments.js",
+    "suggestion": "comments.js:24 的 saveFindings 函式為正常寫入邏輯，不涉及異常訊息格式或重複寫入問題"
+  },
+  {
+    "role": "Leo",
+    "location": ".gitea/workflows/review.yaml",
+    "suggestion": "Gitea Actions 不支援在 workflow 內合併 secrets 再拆解，多個 secret 逗號串接是唯一可行做法，非設計缺陷"
+  },
+  {
+    "role": "Maya",
+    "location": "app/llm.test.js",
+    "suggestion": "console.log/error 為診斷用途，不是業務邏輯，TODO.md 驗收標準為人工驗收描述，不需要在單元測試中斷言 console 輸出"
+  },
+  {
+    "role": "Maya",
+    "location": "app/llm.test.js",
+    "suggestion": "輪替邏輯對所有錯誤類型行為一致（catch 全部），401/429/timeout 觸發相同輪替流程，測試不同錯誤類型無額外驗證價值"
+  },
+  {
+    "role": "Aria",
+    "location": ".gitea/workflows/master.yaml",
+    "suggestion": "master.yaml 檔案結尾已有換行符號（0x0a），符合 POSIX 慣例，無需修改"
+  },
+  {
+    "role": "Leo",
+    "location": "app/llm.test.js",
+    "suggestion": "console.log/error 為診斷用途，不是業務邏輯，TODO.md 驗收標準為人工驗收描述，不需要在單元測試中斷言 console 輸出"
+  },
+  {
+    "role": "Leo",
+    "location": "app/llm.test.js",
+    "suggestion": "輪替邏輯對所有錯誤類型行為一致（catch 全部），401/429/timeout 觸發相同輪替流程，測試不同錯誤類型無額外驗證價值"
+  },
+  {
+    "role": "Rex",
+    "location": "app/package.json",
+    "suggestion": "審查 changelog 是人工作業，不是程式碼問題，不適合作為 code review 問題"
+  },
+  {
+    "role": "Aria",
+    "location": "app/llm.js",
+    "suggestion": "此 action 為 CLI 工具，process.exit(1) 是設計意圖讓 CI/CD workflow 失敗。改拋錯會被 chatJSON 的 catch 吞掉回傳 []，破壞現有行為"
  }
 ]
@@ -1,128 +1,9 @@
 [
-  {
-    "level": "warning",
-    "role": "Rex",
-    "location": ".gitea/workflows/review.yaml:33",
-    "suggestion": "工作流程目前授予 contents、pull‑requests、issues 三項 write 權限，過於寬鬆。建議依實際需求僅授予 read 或最小必要的 write 權限，以降低被濫用的風險。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Rex",
-    "location": ".gitea/workflows/review.yaml:35",
-    "suggestion": "將 OPENAI_API_KEY 參數改為使用正確的 secret 名稱（如 OPENROUTER_API_KEY）時，請確保工作流程文件中不會同時暴露兩個不同的 secret 名稱，以免因名稱錯誤導致金鑰未傳入或意外洩漏。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": ".gitea/workflows/review.yaml:33",
-    "suggestion": "在 `OPENAI_API_KEY` 後的註解前應保留一個空格，以符合常見的 YAML 註解風格：`... ${{ secrets.OPENROUTER_API_KEY }}  # OpenRouter 使用 OpenAI 相容介面，以 OPENAI_API_KEY 傳入`。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": "README.md",
-    "suggestion": "文件中章節編號不連續（例如 `### 2. OpenRouter` 後直接跳到 `### 3. Anthropic Claude`），建議重新編號或使用一致的標題層級，以提升可讀性與維護性。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Rex",
-    "location": ".gitea/workflows/review.yaml:33-35",
-    "suggestion": "工作流程目前授予 contents、pull‑requests、issues 三項 write 權限過於寬鬆。建議依實際需求僅授予 read 或最小必要的 write 權限，降低被濫用的風險。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Rex",
-    "location": ".gitea/workflows/review.yaml:33",
-    "suggestion": "將 OPENAI_API_KEY 參數改為使用正確的 secret 名稱（如 OPENROUTER_API_KEY）時，請確保工作流程檔案中不會同時暴露兩個不同的 secret 名稱，以免因名稱錯誤導致金鑰未傳入或意外洩漏。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": ".gitea/ai-review/findings.json",
-    "suggestion": "檔案最後缺少換行符號，請在檔案結尾加入一個空白換行。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": "app/config.test.js",
-    "suggestion": "檔案最後缺少換行符號，請在檔案結尾加入空白換行。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": "README.md:28",
-    "suggestion": "文件中章節編號不連續（例如 `### 2. OpenRouter` 後直接跳到 `### 3. Anthropic Claude`），請重新編號或使用自動編號方式，保持編號連續。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": "README.md:42",
-    "suggestion": "標題層級使用不一致，部分章節使用 `### 1.`、`### 2.`，而後面的章節直接跳到 `### 3.`，建議統一使用相同層級的 Markdown 標題，並在每個標題後留一個空行以提升可讀性。",
-    "is_new": false
-  },
-  {
-    "level": "warning",
-    "role": "Aria",
-    "location": "action.yaml:72-99",
-    "suggestion": "大量移除的輸入欄位留下多行空白與註解，請整理檔案結構，移除不必要的空行與註解，保持檔案整潔。",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Aria",
-    "location": "app/config.test.js",
-    "suggestion": "匯入語句過長，建議改寫為多行匯入，例如：\n```js\nimport {\n  describe,\n  it,\n  beforeEach,\n  afterEach\n} from 'node:test';\n```",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Aria",
-    "location": "app/config.test.js",
-    "suggestion": "`ENV_KEYS` 陣列過長，建議分行列舉，每行放置一個環境變數，以提升可讀性。",
-    "is_new": false
-  },
  {
    "level": "info",
    "role": "Leo",
-    "location": "app/config.test.js:1",
-    "suggestion": "匯入語句過長，建議改寫為多行匯入，以提升可讀性，例如：\n```js\nimport {\n  describe,\n  it,\n  beforeEach,\n  afterEach\n} from 'node:test';\n```",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Leo",
-    "location": "app/config.test.js:9",
-    "suggestion": "`ENV_KEYS` 陣列過長，建議分行列舉，每行放置一個環境變數，以提升可讀性與維護性。",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Aria",
-    "location": "app/config.test.js:1",
-    "suggestion": "匯入語句過長，建議改寫為多行匯入，例如：\n```js\nimport {\n  describe,\n  it,\n  beforeEach,\n  afterEach\n} from 'node:test';\n```",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Aria",
-    "location": "app/config.test.js:7",
-    "suggestion": "`ENV_KEYS` 陣列過長，建議每行放置一個環境變數，分行列舉以提升可讀性。",
-    "is_new": false
-  },
-  {
-    "level": "info",
-    "role": "Aria",
-    "location": ".gitea/workflows/review.yaml:33",
-    "suggestion": "在 `OPENAI_API_KEY` 後的註解前保留一個空格，以符合常見的 YAML 註解風格：`... ${{ secrets.OPENROUTER_API_KEY }}  # OpenRouter 使用 OpenAI 相容介面，以 OPENAI_API_KEY 傳入`。",
-    "is_new": false
+    "location": "app/package.json",
+    "suggestion": "在 `app/package.json` 中，`axios` 和 `openai` 等函式庫進行了版本更新，特別是 `openai` 從 `4.28.0` 升級到 `4.104.0`。為了確保長期維護的穩定性和安全性，建議審查這些函式庫的發行說明（changelog），以了解是否有任何重大變更、安全修補或已知漏洞，並確認這些更新不會引入不預期的行為或技術債。",
+    "is_new": true
  }
-]
+]
@@ -25,4 +25,4 @@ jobs:
    - name: 清理成品
      uses: https://gitea.jsc.idv.tw/actions/cleanup-release@${{ vars.ACTION_CLEANUP_RELEASE_VERSION }}
      with:
-        RUNNER_TOKEN: ${{ secrets.RUNNER_TOKEN }}
+        RUNNER_TOKEN: ${{ secrets.RUNNER_TOKEN }}
@@ -33,9 +33,9 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@v${{ needs.version.outputs.version }}
      with:
-        OPENAI_API_KEY: ${{ secrets.OPENROUTER_API_KEY }}  # OpenRouter 使用 OpenAI 相容介面，以 OPENAI_API_KEY 傳入
-        OPENAI_BASE_URL: https://openrouter.ai/api/v1
-        OPENAI_MODEL: ${{ vars.OPENROUTER_MODEL }}
+        GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }},${{ secrets.GEMINI_API_KEY_1 }},${{ secrets.GEMINI_API_KEY_2 }},${{ secrets.GEMINI_API_KEY_3 }},${{ secrets.GEMINI_API_KEY_4 }},${{ secrets.GEMINI_API_KEY_5 }},${{ secrets.GEMINI_API_KEY_6 }},${{ secrets.GEMINI_API_KEY_7 }},${{ secrets.GEMINI_API_KEY_8 }},${{ secrets.GEMINI_API_KEY_9 }},${{ secrets.GEMINI_API_KEY_10 }},${{ secrets.GEMINI_API_KEY_11 }},${{ secrets.GEMINI_API_KEY_12 }},${{ secrets.GEMINI_API_KEY_13 }},${{ secrets.GEMINI_API_KEY_14 }},${{ secrets.GEMINI_API_KEY_15 }},${{ secrets.GEMINI_API_KEY_16 }},${{ secrets.GEMINI_API_KEY_17 }},${{ secrets.GEMINI_API_KEY_18 }},${{ secrets.GEMINI_API_KEY_19 }}
+        GEMINI_BASE_URL: https://generativelanguage.googleapis.com/v1beta
+        GEMINI_MODEL: ${{ vars.GEMINI_MODEL }}
    permissions:
      contents: write
      pull-requests: write
@@ -0,0 +1 @@
+app/node_modules/
@@ -21,6 +21,7 @@
 3. Comment 加上些許 emoji 讓資訊有點活力
 4. 盡量將應用程式放在 ./app，修改 entrypoint.sh 與 Dockerfile 讓程式可以正常運行
 5. 將提示詞放到 ./app/prompts 內供程式讀取
+6. API Key 支援逗號分隔傳入多個，隨機順序各嘗試一次，全部失敗則 exit 1

 # 使用說明

@@ -42,7 +43,7 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
      with:
-        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}  # 支援逗號分隔多個 Key
        OPENAI_BASE_URL: https://api.openai.com/v1
        OPENAI_MODEL: ${{ vars.OPENAI_MODEL }}
    permissions:
@@ -65,7 +66,7 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
      with:
-        OPENAI_API_KEY: ${{ secrets.OPENROUTER_API_KEY }}  # OpenRouter 使用 OpenAI 相容介面，以 OPENAI_API_KEY 傳入
+        OPENAI_API_KEY: ${{ secrets.OPENROUTER_API_KEY }},${{ secrets.OPENROUTER_API_KEY_1 }}
        OPENAI_BASE_URL: https://openrouter.ai/api/v1
        OPENAI_MODEL: ${{ vars.OPENROUTER_MODEL }}
    permissions:
@@ -88,7 +89,7 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
      with:
-        CLAUDE_API_KEY: ${{ secrets.CLAUDE_API_KEY }}
+        CLAUDE_API_KEY: ${{ secrets.CLAUDE_API_KEY }}  # 支援逗號分隔多個 Key
        CLAUDE_BASE_URL: https://api.anthropic.com/v1
    permissions:
      contents: write
@@ -110,7 +111,7 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
      with:
-        GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }}
+        GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }},${{ secrets.GEMINI_API_KEY_1 }},${{ secrets.GEMINI_API_KEY_2 }},${{ secrets.GEMINI_API_KEY_3 }},${{ secrets.GEMINI_API_KEY_4 }},${{ secrets.GEMINI_API_KEY_5 }},${{ secrets.GEMINI_API_KEY_6 }},${{ secrets.GEMINI_API_KEY_7 }},${{ secrets.GEMINI_API_KEY_8 }},${{ secrets.GEMINI_API_KEY_9 }},${{ secrets.GEMINI_API_KEY_10 }},${{ secrets.GEMINI_API_KEY_11 }},${{ secrets.GEMINI_API_KEY_12 }},${{ secrets.GEMINI_API_KEY_13 }},${{ secrets.GEMINI_API_KEY_14 }},${{ secrets.GEMINI_API_KEY_15 }},${{ secrets.GEMINI_API_KEY_16 }},${{ secrets.GEMINI_API_KEY_17 }},${{ secrets.GEMINI_API_KEY_18 }},${{ secrets.GEMINI_API_KEY_19 }}
        GEMINI_BASE_URL: https://generativelanguage.googleapis.com/v1beta
        GEMINI_MODEL: ${{ vars.GEMINI_MODEL }}
    permissions:
@@ -133,7 +134,7 @@ jobs:
    - name: AI Code Review
      uses: https://gitea.jsc.idv.tw/jiantw83/code-review@${{ vars.ACTION_CODE_REVIEW_VERSION }}
      with:
-        AMAZONQ_API_KEY: ${{ secrets.AMAZONQ_API_KEY }}
+        AMAZONQ_API_KEY: ${{ secrets.AMAZONQ_API_KEY }}  # 支援逗號分隔多個 Key
        AMAZONQ_BASE_URL: https://q.api.aws
    permissions:
      contents: write
@@ -35,6 +35,11 @@
 - 驗收：log 中能看到「critical 問題存在，workflow 結束（exit 1）」等明確訊息，且 workflow 狀態為失敗。
 - 完成

+## 階段八：API Key 輪替
+- 目標：所有平台的 API Key 支援逗號分隔傳入多個，隨機順序各嘗試一次，單一 Key 失敗時自動換下一個，全部失敗則 exit 1。
+- 驗收：log 中能看到「key[N/M] 失敗」等訊息，換 key 後繼續執行；傳入單一 Key 時行為與原本相同；全部 Key 失敗時 log「所有 API Key 均失敗，終止流程」且 workflow 狀態為失敗。
+- 完成
+
 ---

 所有階段驗收通過。
@@ -72,8 +72,6 @@ inputs:
    description: 'Amazon Q Base URL'
    required: false

-
-
 runs:
  using: 'docker'
  image: 'Dockerfile'
@@ -21,7 +21,7 @@ function buildTable(findings) {
 export function saveFindings(workspace, findings) {
  const fullPath = path.join(workspace, FINDINGS_PATH);
  fs.mkdirSync(path.dirname(fullPath), { recursive: true });
-  fs.writeFileSync(fullPath, JSON.stringify(findings, null, 2), 'utf8');
+  fs.writeFileSync(fullPath, JSON.stringify(findings, null, 2) + '\n', 'utf8');
  console.log(`  ✅ findings 寫入: ${fullPath} (${findings.length} 筆)`);
 }

@@ -8,16 +8,22 @@ export const PR_BASE_BRANCH = process.env.PR_BASE_BRANCH || '';
 export const FINDINGS_PATH = '.gitea/ai-review/findings.json';
 export const EXCLUSIONS_PATH = '.gitea/ai-review/exclusions.json';

+/** 將逗號分隔的 API key 字串拆成陣列 */
+function splitKeys(value) {
+  if (!value) return [];
+  return value.split(',').map(k => k.trim()).filter(Boolean);
+}
+
 export function getLLMConfig() {
  const checks = [
-    ['openai',   process.env.OPENAI_API_KEY,   process.env.OPENAI_BASE_URL || 'https://api.openai.com/v1',   process.env.OPENAI_MODEL || 'gpt-4o-mini'],
-    ['claude',   process.env.CLAUDE_API_KEY,   process.env.CLAUDE_BASE_URL || 'https://api.anthropic.com/v1', process.env.CLAUDE_MODEL || 'claude-3-haiku-20240307'],
-    ['gemini',   process.env.GEMINI_API_KEY,   process.env.GEMINI_BASE_URL || 'https://generativelanguage.googleapis.com/v1beta', process.env.GEMINI_MODEL || 'gemini-2.5-flash'],
-    ['ollama',   'ollama',                      process.env.OLLAMA_BASE_URL,  process.env.OLLAMA_MODEL],
-    ['amazonq',  process.env.AMAZONQ_API_KEY,  process.env.AMAZONQ_BASE_URL  || 'https://q.api.aws',              process.env.AMAZONQ_MODEL  || 'amazon-q'],
+    ['openai',   splitKeys(process.env.OPENAI_API_KEY),   process.env.OPENAI_BASE_URL || 'https://api.openai.com/v1',   process.env.OPENAI_MODEL || 'gpt-4o-mini'],
+    ['claude',   splitKeys(process.env.CLAUDE_API_KEY),   process.env.CLAUDE_BASE_URL || 'https://api.anthropic.com/v1', process.env.CLAUDE_MODEL || 'claude-3-haiku-20240307'],
+    ['gemini',   splitKeys(process.env.GEMINI_API_KEY),   process.env.GEMINI_BASE_URL || 'https://generativelanguage.googleapis.com/v1beta', process.env.GEMINI_MODEL || 'gemini-2.5-flash'],
+    ['ollama',   ['ollama'],                               process.env.OLLAMA_BASE_URL,  process.env.OLLAMA_MODEL],
+    ['amazonq',  splitKeys(process.env.AMAZONQ_API_KEY),  process.env.AMAZONQ_BASE_URL  || 'https://q.api.aws',              process.env.AMAZONQ_MODEL  || 'amazon-q'],
  ];
-  for (const [provider, key, baseURL, model] of checks) {
-    if (key && baseURL) return { provider, apiKey: key, baseURL, model };
+  for (const [provider, apiKeys, baseURL, model] of checks) {
+    if (apiKeys.length > 0 && baseURL) return { provider, apiKeys, baseURL, model };
  }
-  return { provider: null, apiKey: null, baseURL: null, model: null };
+  return { provider: null, apiKeys: [], baseURL: null, model: null };
 }
@@ -26,14 +26,14 @@ describe('getLLMConfig', () => {
  it('returns null provider when no env vars set', () => {
    const cfg = getLLMConfig();
    assert.equal(cfg.provider, null);
-    assert.equal(cfg.apiKey, null);
+    assert.deepEqual(cfg.apiKeys, []);
  });

  it('detects openai with defaults', () => {
    process.env.OPENAI_API_KEY = 'sk-test';
    const cfg = getLLMConfig();
    assert.equal(cfg.provider, 'openai');
-    assert.equal(cfg.apiKey, 'sk-test');
+    assert.deepEqual(cfg.apiKeys, ['sk-test']);
    assert.equal(cfg.baseURL, 'https://api.openai.com/v1');
    assert.equal(cfg.model, 'gpt-4o-mini');
  });
@@ -48,7 +48,14 @@ describe('getLLMConfig', () => {
    assert.equal(cfg.model, 'gpt-4o');
  });

-  it('detects gemini with defaults', () => {
+  it('detects gemini with comma-separated keys, picks one', () => {
+    process.env.GEMINI_API_KEY = 'key1,key2,key3';
+    const cfg = getLLMConfig();
+    assert.equal(cfg.provider, 'gemini');
+    assert.deepEqual(cfg.apiKeys, ['key1', 'key2', 'key3']);
+  });
+
+  it('detects gemini with single key (no comma)', () => {
    process.env.GEMINI_API_KEY = 'gemini-key';
    const cfg = getLLMConfig();
    assert.equal(cfg.provider, 'gemini');
@@ -98,4 +105,11 @@ describe('getLLMConfig', () => {
    assert.equal(cfg.provider, 'ollama');
    assert.equal(cfg.model, 'llama3');
  });
+
+  it('comma-only api key is treated as not set', () => {
+    process.env.OPENAI_API_KEY = ',,,';
+    const cfg = getLLMConfig();
+    assert.equal(cfg.provider, null);
+    assert.deepEqual(cfg.apiKeys, []);
+  });
 });
@@ -1,27 +1,31 @@
 import axios from 'axios';
-import https from 'https';
 import { getLLMConfig } from './config.js';

-const httpsAgent = new https.Agent({ rejectUnauthorized: false });
-
 export async function chat(systemPrompt, userContent) {
-  const { provider, apiKey, baseURL, model } = getLLMConfig();
+  const { provider, apiKeys, baseURL, model } = getLLMConfig();
  if (!provider) throw new Error('未設定任何 LLM API Key');

  console.log(`  [LLM] provider=${provider} model=${model}`);

-  const headers = {
-    'Content-Type': 'application/json',
-    'Authorization': `Bearer ${apiKey}`,
-  };
+  const headers = { 'Content-Type': 'application/json' };
  if (provider === 'claude') headers['anthropic-version'] = '2023-06-01';

-  const resp = await axios.post(
-    `${baseURL.replace(/\/$/, '')}/chat/completions`,
-    { model, messages: [{ role: 'system', content: systemPrompt }, { role: 'user', content: userContent }], temperature: 0.2 },
-    { headers, timeout: 120000, httpsAgent }
-  );
-  return resp.data.choices[0].message.content;
+  const shuffled = [...apiKeys].sort(() => Math.random() - 0.5);
+  for (let i = 0; i < shuffled.length; i++) {
+    if (provider !== 'ollama') headers['Authorization'] = `Bearer ${shuffled[i]}`;
+    try {
+      const resp = await axios.post(
+        `${baseURL.replace(/\/$/, '')}/chat/completions`,
+        { model, messages: [{ role: 'system', content: systemPrompt }, { role: 'user', content: userContent }], temperature: 0.2 },
+        { headers }
+      );
+      return resp.data.choices[0].message.content;
+    } catch (e) {
+      console.log(`  [LLM] key[${i + 1}/${shuffled.length}] 失敗: ${e.message}`);
+    }
+  }
+  console.error('  [LLM] 所有 API Key 均失敗，終止流程');
+  process.exit(1);
 }

 export async function chatJSON(systemPrompt, userContent) {
@@ -0,0 +1,153 @@
+import { describe, it, beforeEach, afterEach, mock } from 'node:test';
+import assert from 'node:assert/strict';
+
+// Mock axios before importing llm.js
+import axios from 'axios';
+
+const ENV_KEYS = [
+  'OPENAI_API_KEY', 'OPENAI_BASE_URL', 'OPENAI_MODEL',
+  'GEMINI_API_KEY', 'GEMINI_BASE_URL', 'GEMINI_MODEL',
+  'CLAUDE_API_KEY', 'CLAUDE_BASE_URL', 'CLAUDE_MODEL',
+  'OLLAMA_BASE_URL', 'OLLAMA_MODEL',
+  'AMAZONQ_API_KEY', 'AMAZONQ_BASE_URL', 'AMAZONQ_MODEL',
+];
+
+let saved = {};
+beforeEach(() => {
+  saved = {};
+  for (const k of ENV_KEYS) { saved[k] = process.env[k]; delete process.env[k]; }
+});
+afterEach(() => {
+  for (const k of ENV_KEYS) {
+    if (saved[k] === undefined) delete process.env[k];
+    else process.env[k] = saved[k];
+  }
+  mock.restoreAll();
+});
+
+function mockAxiosPost(responses) {
+  let call = 0;
+  mock.method(axios, 'post', async () => {
+    const r = responses[call++] ?? responses[responses.length - 1];
+    if (r instanceof Error) throw r;
+    return r;
+  });
+}
+
+function makeOkResponse(content = 'ok') {
+  return { data: { choices: [{ message: { content } }] } };
+}
+
+describe('chat - key rotation', async () => {
+  const { chat } = await import('./llm.js');
+
+  it('succeeds on first key', async () => {
+    process.env.OPENAI_API_KEY = 'key1';
+    mockAxiosPost([makeOkResponse('hello')]);
+    const result = await chat('sys', 'user');
+    assert.equal(result, 'hello');
+  });
+
+  it('shuffles keys and tries each exactly once', async () => {
+    process.env.OPENAI_API_KEY = 'key1,key2,key3';
+    const usedKeys = [];
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      usedKeys.push(opts.headers['Authorization'].replace('Bearer ', ''));
+      throw new Error('fail');
+    });
+    const exitMock = mock.method(process, 'exit', () => { throw new Error('exit:1'); });
+    await assert.rejects(() => chat('sys', 'user'), /exit:1/);
+    assert.equal(exitMock.mock.calls[0].arguments[0], 1);
+    assert.equal(usedKeys.length, 3);
+    assert.deepEqual([...usedKeys].sort(), ['key1', 'key2', 'key3']);
+  });
+
+  it('calls process.exit(1) when all keys fail', async () => {
+    process.env.OPENAI_API_KEY = 'k1,k2';
+    mockAxiosPost([new Error('fail'), new Error('fail')]);
+    const exitMock = mock.method(process, 'exit', () => { throw new Error('exit:1'); });
+    await assert.rejects(() => chat('sys', 'user'), /exit:1/);
+    assert.equal(exitMock.mock.calls[0].arguments[0], 1);
+  });
+
+  it('does not set Authorization header for ollama', async () => {
+    process.env.OLLAMA_BASE_URL = 'http://localhost:11434/v1';
+    process.env.OLLAMA_MODEL = 'llama3';
+    let capturedHeaders;
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      capturedHeaders = opts.headers;
+      return makeOkResponse('ollama response');
+    });
+    await chat('sys', 'user');
+    assert.equal(capturedHeaders['Authorization'], undefined);
+  });
+
+  it('sets Authorization header for openai', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    let capturedHeaders;
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      capturedHeaders = opts.headers;
+      return makeOkResponse();
+    });
+    await chat('sys', 'user');
+    assert.equal(capturedHeaders['Authorization'], 'Bearer sk-test');
+  });
+
+  it('does not set timeout', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    let capturedOpts;
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      capturedOpts = opts;
+      return makeOkResponse();
+    });
+    await chat('sys', 'user');
+    assert.equal(capturedOpts.timeout, undefined);
+  });
+
+  it('does not pass httpsAgent to axios', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    let capturedOpts;
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      capturedOpts = opts;
+      return makeOkResponse();
+    });
+    await chat('sys', 'user');
+    assert.equal(capturedOpts.httpsAgent, undefined);
+  });
+
+  it('sets anthropic-version header for claude', async () => {
+    process.env.CLAUDE_API_KEY = 'claude-key';
+    let capturedHeaders;
+    mock.method(axios, 'post', async (_url, _body, opts) => {
+      capturedHeaders = opts.headers;
+      return makeOkResponse();
+    });
+    await chat('sys', 'user');
+    assert.equal(capturedHeaders['anthropic-version'], '2023-06-01');
+  });
+});
+
+describe('chatJSON', async () => {
+  const { chatJSON } = await import('./llm.js');
+
+  it('parses plain JSON response', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    mockAxiosPost([makeOkResponse('[{"level":"critical"}]')]);
+    const result = await chatJSON('sys', 'user');
+    assert.deepEqual(result, [{ level: 'critical' }]);
+  });
+
+  it('strips markdown code block before parsing', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    mockAxiosPost([makeOkResponse('```json\n[{"level":"info"}]\n```')]);
+    const result = await chatJSON('sys', 'user');
+    assert.deepEqual(result, [{ level: 'info' }]);
+  });
+
+  it('returns [] when JSON is invalid', async () => {
+    process.env.OPENAI_API_KEY = 'sk-test';
+    mockAxiosPost([makeOkResponse('not json')]);
+    const result = await chatJSON('sys', 'user');
+    assert.deepEqual(result, []);
+  });
+});
@@ -0,0 +1,468 @@
+{
+  "name": "ai-code-review",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "ai-code-review",
+      "version": "1.0.0",
+      "dependencies": {
+        "axios": "^1.6.7",
+        "js-yaml": "^4.1.0",
+        "openai": "^4.28.0"
+      }
+    },
+    "node_modules/@types/node": {
+      "version": "18.19.130",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.19.130.tgz",
+      "integrity": "sha512-GRaXQx6jGfL8sKfaIDD6OupbIHBr9jv7Jnaml9tB7l4v068PAOXqfcujMMo5PhbIs6ggR1XODELqahT2R8v0fg==",
+      "dependencies": {
+        "undici-types": "~5.26.4"
+      }
+    },
+    "node_modules/@types/node-fetch": {
+      "version": "2.6.13",
+      "resolved": "https://registry.npmjs.org/@types/node-fetch/-/node-fetch-2.6.13.tgz",
+      "integrity": "sha512-QGpRVpzSaUs30JBSGPjOg4Uveu384erbHBoT1zeONvyCfwQxIkUshLAOqN/k9EjGviPRmWTTe6aH2qySWKTVSw==",
+      "dependencies": {
+        "@types/node": "*",
+        "form-data": "^4.0.4"
+      }
+    },
+    "node_modules/abort-controller": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
+      "integrity": "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==",
+      "dependencies": {
+        "event-target-shim": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=6.5"
+      }
+    },
+    "node_modules/agentkeepalive": {
+      "version": "4.6.0",
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+      "dependencies": {
+        "humanize-ms": "^1.2.1"
+      },
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+      }
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+    "node_modules/argparse": {
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+    "node_modules/asynckit": {
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+    "node_modules/axios": {
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+        "form-data": "^4.0.5",
+        "proxy-from-env": "^2.1.0"
+      }
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+      },
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+    },
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+      "engines": {
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+        "gopd": "^1.2.0"
+      },
+      "engines": {
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+      }
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+        "es-errors": "^1.3.0"
+      },
+      "engines": {
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+      }
+    },
+    "node_modules/es-set-tostringtag": {
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+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.6",
+        "has-tostringtag": "^1.0.2",
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/event-target-shim": {
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+      "engines": {
+        "node": ">=6"
+      }
+    },
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+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
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+}
@@ -3,7 +3,7 @@
  "version": "1.0.0",
  "type": "module",
  "scripts": {
-    "test": "node --test app/git.test.js"
+    "test": "node --test git.test.js config.test.js llm.test.js"
  },
  "dependencies": {
    "axios": "^1.6.7",
Author	SHA1	Message	Date
jiantw83	91816c700e	Merge pull request 'feat: support multiple API keys for LLM providers, allowing automatic key rotation on failure' (#84 ) from feat/refactor/mulit_api_key into feat/refactor/main Reviewed-on: jiantw83/code-review#84	2026-05-12 09:25:46 +00:00
AI Review Bot	d9acf3b0b7	chore: update ai-review findings [skip ci]	2026-05-12 09:25:14 +00:00
jiantw83	9650162a67	feat: extend GEMINI_API_KEY support to include additional keys and update suggestions in exclusions.json	2026-05-12 09:21:32 +00:00
AI Review Bot	3fa5504e9a	chore: update ai-review findings [skip ci]	2026-05-12 09:13:49 +00:00
jiantw83	b6aa37201a	feat: add test for handling comma-only API key in getLLMConfig	2026-05-12 09:01:54 +00:00
AI Review Bot	a296c594d3	chore: update ai-review findings [skip ci]	2026-05-12 08:45:24 +00:00
jiantw83	95929fdced	feat: add suggestions for master.yaml and llm.test.js to improve code quality and testing practices	2026-05-12 08:41:23 +00:00
AI Review Bot	af195b9c3b	chore: update ai-review findings [skip ci]	2026-05-12 08:36:23 +00:00
jiantw83	b149508dab	feat: enhance exclusions.json with additional suggestions and add chatJSON tests for JSON response handling	2026-05-12 08:29:24 +00:00
jiantw83	bb18147cab	feat: update exclusions.json with additional suggestions and refine master.yaml for cleaner token handling	2026-05-12 08:29:24 +00:00
AI Review Bot	b3c868ceec	chore: update ai-review findings [skip ci]	2026-05-12 08:23:00 +00:00
jiantw83	a6df5c4f43	feat: refactor API key handling to shuffle keys and attempt each once	2026-05-12 08:17:49 +00:00
jiantw83	e28c6ea5a3	feat: update AI Code Review workflow to use Gemini API keys and configuration	2026-05-12 08:05:37 +00:00
jiantw83	4a631bc62a	feat: support multiple OpenAI API keys in AI Code Review workflow	2026-05-12 08:04:44 +00:00
jiantw83	710b9a1bb5	feat: update AI Code Review workflow to use OpenAI API instead of Gemini API	2026-05-12 07:47:28 +00:00
jiantw83	2ced37f54f	feat: refactor LLM API handling, add tests for key rotation and update package files	2026-05-12 07:38:38 +00:00
AI Review Bot	328d6b2100	chore: update ai-review findings [skip ci]	2026-05-12 07:18:00 +00:00
jiantw83	1b7aeedfdb	feat: support multiple API keys for LLM providers, allowing automatic key rotation on failure	2026-05-12 07:09:20 +00:00
AI Review Bot	50f422f0d3	chore: update ai-review findings [skip ci]	2026-05-12 06:49:07 +00:00
jiantw83	c3533bdfb6	Merge pull request 'feat/refactor/kiro/fix' (#83 ) from feat/refactor/kiro/fix into feat/refactor/main Reviewed-on: jiantw83/code-review#83	2026-05-12 06:48:18 +00:00
AI Review Bot	7578bee5d3	chore: update ai-review findings [skip ci]	2026-05-12 06:47:39 +00:00
jiantw83	8a8612b46d	fix: update findings.json to remove redundant warnings and ensure consistency with exclusions.json	2026-05-12 06:46:51 +00:00
AI Review Bot	e3b4c7f8d4	chore: update ai-review findings [skip ci]	2026-05-12 06:32:21 +00:00
jiantw83	fdcb9f04de	fix: update suggestions in exclusions.json to clarify handling of findings and LLM service provider maintenance	2026-05-12 06:29:43 +00:00
jiantw83	e3596eb710	fix: add duplicate suggestion for LLM integration tests in exclusions.json	2026-05-12 06:28:34 +00:00
AI Review Bot	83943b8dda	chore: update ai-review findings [skip ci]	2026-05-12 06:24:11 +00:00
jiantw83	234a8a829f	fix: update suggestion in exclusions.json for LLM integration tests to clarify API key requirements	2026-05-12 06:21:24 +00:00
AI Review Bot	b164fe855e	chore: update ai-review findings [skip ci]	2026-05-12 06:15:35 +00:00
jiantw83	16cb1966f0	fix: update GEMINI_API_KEY in review.yaml to use the correct secret	2026-05-12 06:11:12 +00:00
jiantw83	8d3f5e3a45	fix: update GEMINI_API_KEY in review.yaml to use the correct secret	2026-05-12 06:06:30 +00:00
AI Review Bot	85ff61e98f	chore: update ai-review findings [skip ci]	2026-05-12 06:03:48 +00:00
jiantw83	4bace91d3d	fix: add suggestions for LLM integration tests and code structure improvements in exclusions.json; ensure findings.json is saved with a newline	2026-05-12 06:03:30 +00:00
AI Review Bot	e541cee83f	chore: update ai-review findings [skip ci]	2026-05-12 05:54:43 +00:00
jiantw83	95802c422b	fix: update suggestions in exclusions.json and findings.json for clarity and consistency with GEMINI API	2026-05-12 05:54:25 +00:00
jiantw83	bf7b8f843b	fix: add suggestion for GEMINI API parameter consistency in review.yaml	2026-05-12 05:50:46 +00:00
AI Review Bot	e88e586ac6	chore: update ai-review findings [skip ci]	2026-05-12 05:48:20 +00:00
jiantw83	6921ca05ec	fix: update AI Code Review step to use GEMINI API instead of OpenRouter	2026-05-12 05:47:09 +00:00
AI Review Bot	8046708f00	chore: update ai-review findings [skip ci]	2026-05-12 05:37:32 +00:00
jiantw83	58fdbdd965	fix: enhance exclusions.json suggestions for clarity; remove unnecessary lines in action.yaml	2026-05-12 05:37:07 +00:00