Add LINE push integration and target mode config

.env.example

@@ -5,3 +5,7 @@ DB_PASSWORD=your-password
 DB_DATABASE=badminton
 DB_TABLE=badminton
 SERVER_PORT=8787
+LINE_CHANNEL_ACCESS_TOKEN=your-line-channel-access-token
+LINE_TARGET_MODE=local
+LINE_TARGET_ID_LOCAL=your-line-local-target-id
+LINE_TARGET_ID_PROD=your-line-production-target-id

README.md

@@ -14,6 +14,7 @@
 - 若指定日期已經有資料，上傳前會先詢問是否覆蓋
 - 可讀取指定日期的資料庫內容並回填到畫面
 - 若指定日期沒有資料，畫面會顯示「指定日期沒有資料」
+- 組隊結果產生後可一鍵主動推播到指定 LINE 對話
 - 支援換行、半形逗號、全形逗號與頓號輸入
 - 會自動去除空白與重複名稱
 
@@ -30,6 +31,14 @@ npm run dev
 http://localhost:3500
 ```
 
+推播到 LINE 時，會直接使用 Flex Message 主動送到指定對話，格式參考既有 `line-bot-ts` 羽球查詢結果樣式。
+
+LINE 推播目標支援分成兩組：
+
+- `LINE_TARGET_ID_LOCAL`: 本地測試用對話
+- `LINE_TARGET_ID_PROD`: 正式環境用對話
+- `LINE_TARGET_MODE`: `local` 或 `prod`
+
 ## 資料庫欄位
 
 - `time`: 目標日期，格式為 `YYYYMMDD`

server/server.mjs

@@ -17,6 +17,14 @@ const distReady = existsSync(path.join(distDir, 'index.html'))
 
 const requiredEnv = ['DB_HOST', 'DB_PORT', 'DB_USER', 'DB_PASSWORD', 'DB_DATABASE']
 const missingEnv = requiredEnv.filter((key) => !process.env[key])
+const lineAccessToken =
+  process.env.LINE_CHANNEL_ACCESS_TOKEN ?? process.env.channelAccessToken ?? ''
+const lineTargetMode = (process.env.LINE_TARGET_MODE ?? 'local').toLowerCase()
+const lineTargetId =
+  process.env.LINE_TARGET_ID ??
+  (lineTargetMode === 'prod'
+    ? process.env.LINE_TARGET_ID_PROD ?? ''
+    : process.env.LINE_TARGET_ID_LOCAL ?? '')
 
 const pool =
   missingEnv.length === 0
@@ -39,10 +47,64 @@ app.get('/api/health', (_request, response) => {
     ok: true,
     dbReady: Boolean(pool),
     distReady,
+    lineReady: Boolean(lineAccessToken && lineTargetId),
+    lineTargetMode,
     missingEnv,
   })
 })
 
+app.post('/api/line/push-match-results', async (request, response) => {
+  const { time, teams } = request.body ?? {}
+
+  if (typeof time !== 'string' || !Array.isArray(teams)) {
+    response.status(400).json({
+      ok: false,
+      message: '送出的 LINE 訊息資料格式不正確。',
+    })
+    return
+  }
+
+  if (!lineAccessToken || !lineTargetId) {
+    response.status(500).json({
+      ok: false,
+      message:
+        'LINE 推播環境變數缺少，請檢查 LINE_CHANNEL_ACCESS_TOKEN 與 LINE_TARGET_ID_LOCAL / LINE_TARGET_ID_PROD。',
+    })
+    return
+  }
+
+  try {
+    const message = buildLineFlexMessage(time, teams)
+    const lineResponse = await fetch('https://api.line.me/v2/bot/message/push', {
+      method: 'POST',
+      headers: {
+        Authorization: `Bearer ${lineAccessToken}`,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        to: lineTargetId,
+        messages: [message],
+      }),
+    })
+
+    if (!lineResponse.ok) {
+      const errorText = await lineResponse.text()
+      throw new Error(`LINE 推播失敗：${errorText}`)
+    }
+
+    response.json({
+      ok: true,
+      message: '已推送到 LINE。',
+    })
+  } catch (error) {
+    console.error('line push error:', error)
+    response.status(500).json({
+      ok: false,
+      message: error instanceof Error ? error.message : 'LINE 推播失敗。',
+    })
+  }
+})
+
 app.get('/api/match-results/:time', async (request, response) => {
   if (!pool) {
     response.status(500).json({
@@ -172,6 +234,7 @@ if (distReady) {
 app.listen(port, () => {
   console.log(`Server ready on http://localhost:${port}`)
   console.log(`Static files: ${distReady ? 'loaded' : 'missing'}`)
+  console.log(`LINE target mode: ${lineTargetMode}`)
   if (missingEnv.length > 0) {
     console.log(`Missing env: ${missingEnv.join(', ')}`)
   }
@@ -187,3 +250,102 @@ async function ensureTable(poolInstance, currentTableName) {
     ) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci
   `)
 }
+
+function buildLineFlexMessage(time, rounds) {
+  const dateText = `${time.slice(0, 4)}-${time.slice(4, 6)}-${time.slice(6, 8)}`
+
+  return {
+    type: 'flex',
+    altText: `${dateText} 羽球隊伍配對`,
+    contents: {
+      type: 'carousel',
+      contents: rounds.map((round, roundIndex) => ({
+        type: 'bubble',
+        size: 'micro',
+        body: {
+          type: 'box',
+          layout: 'vertical',
+          contents: [
+            {
+              type: 'text',
+              text: '勝皇羽球團',
+              weight: 'bold',
+              color: '#1DB446',
+              size: 'sm',
+            },
+            {
+              type: 'text',
+              text: dateText,
+              weight: 'bold',
+              size: 'xl',
+              margin: 'sm',
+            },
+            {
+              type: 'text',
+              text: `第${roundIndex + 1}輪`,
+              weight: 'bold',
+              size: 'xxl',
+              margin: 'sm',
+            },
+            {
+              type: 'separator',
+              margin: 'md',
+            },
+            {
+              type: 'box',
+              layout: 'horizontal',
+              contents: [
+                {
+                  type: 'text',
+                  text: '一號隊友',
+                  size: 'sm',
+                  flex: 0,
+                },
+                {
+                  type: 'text',
+                  text: '二號隊友',
+                  size: 'sm',
+                  align: 'center',
+                },
+              ],
+              margin: 'md',
+            },
+            {
+              type: 'separator',
+              margin: 'sm',
+            },
+            {
+              type: 'box',
+              layout: 'vertical',
+              spacing: 'sm',
+              margin: 'md',
+              contents: round.teams.map((team) => ({
+                type: 'box',
+                layout: 'horizontal',
+                contents: [
+                  {
+                    type: 'text',
+                    text: team.a,
+                    size: 'sm',
+                    flex: 0,
+                  },
+                  {
+                    type: 'text',
+                    text: team.b,
+                    size: 'sm',
+                    align: 'center',
+                  },
+                ],
+              })),
+            },
+          ],
+        },
+        styles: {
+          footer: {
+            separator: true,
+          },
+        },
+      })),
+    },
+  }
+}

src/App.css

@@ -257,6 +257,10 @@
   line-height: 1.65;
 }
 
+.save-status-sharing {
+  color: #1d6c46;
+}
+
 .error-banner {
   margin: 18px 0 0;
   padding: 14px 16px;
@@ -272,6 +276,14 @@
   gap: 14px;
 }
 
+.share-row {
+  margin-bottom: 18px;
+}
+
+.share-button {
+  min-width: 160px;
+}
+
 .round-card,
 .team-card {
   border-radius: 22px;

src/App.tsx

@@ -18,7 +18,7 @@ type RoundResult = {
   teams: Team[]
 }
 
-type ActionState = 'idle' | 'saving' | 'saved' | 'loading' | 'loaded' | 'error'
+type ActionState = 'idle' | 'saving' | 'saved' | 'loading' | 'loaded' | 'sharing' | 'error'
 
 type LoadMatchResultsResponse = {
   time: number
@@ -154,6 +154,35 @@ function App() {
     }
   }
 
+  async function pushToLine() {
+    if (results.length === 0) {
+      setActionState('error')
+      setActionMessage('請先產生配對結果，再推送到 LINE。')
+      return
+    }
+
+    if (!targetDate) {
+      setActionState('error')
+      setActionMessage('請先選擇目標日期。')
+      return
+    }
+
+    try {
+      const timeKey = convertDateToKey(targetDate)
+      setActionState('sharing')
+      setActionMessage('推送 LINE 訊息中...')
+
+      await pushMatchResultsToLine(timeKey, results)
+      setActionState('sharing')
+      setActionMessage(`已推送到指定 LINE 對話：${timeKey}`)
+    } catch (pushError) {
+      setActionState('error')
+      setActionMessage(
+        pushError instanceof Error ? pushError.message : '推送到 LINE 失敗，請稍後再試。',
+      )
+    }
+  }
+
   function resetDemo() {
     setAreaAInput(defaultAreaA.join('\n'))
     setAreaBInput(defaultAreaB.join('\n'))
@@ -270,6 +299,19 @@ function App() {
           <h2>三組名單</h2>
         </div>
 
+        {results.length > 0 ? (
+          <div className="share-row">
+            <button
+              className="primary-button share-button"
+              type="button"
+              onClick={() => void pushToLine()}
+              disabled={actionState === 'saving' || actionState === 'loading'}
+            >
+              推送到 LINE
+            </button>
+          </div>
+        ) : null}
+
         {results.length > 0 ? (
           <div className="round-list">
             {results.map((round) => (
@@ -409,6 +451,32 @@ async function findMatchResults(time: string) {
   }
 }
 
+async function pushMatchResultsToLine(time: string, rounds: RoundResult[]) {
+  const response = await fetch('/api/line/push-match-results', {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      time,
+      teams: rounds.map((round) => ({
+        round: round.id,
+        teams: round.teams.map((team) => ({
+          team: team.id,
+          a: team.playerA.name,
+          b: team.playerB.name,
+        })),
+      })),
+    }),
+  })
+
+  const payload = (await response.json()) as { ok?: boolean; message?: string }
+
+  if (!response.ok || !payload.ok) {
+    throw new Error(payload.message ?? '推送到 LINE 失敗。')
+  }
+}
+
 function convertDbRecordToAppState(record: LoadMatchResultsResponse) {
   const personnel = JSON.parse(record.personnel) as [number, string][]
   const battlecombination = JSON.parse(record.battlecombination ?? '{}') as Record<