初次提交

server/api/songs/count.get.ts

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+import { createError, defineEventHandler, getQuery } from 'h3'
+import { db } from '~/drizzle/db'
+import { songs } from '~/drizzle/schema'
+import { count, eq } from 'drizzle-orm'
+import { cache } from '~~/server/utils/cache-helpers'
+import { isRedisReady } from '~~/server/utils/redis'
+
+export default defineEventHandler(async (event) => {
+  const query = getQuery(event)
+  const semester = query.semester as string
+
+  try {
+    // 构建缓存键
+    const cacheKey = semester ? `songs:count:${semester}` : 'songs:count:all'
+
+    // 尝试从缓存获取
+    const cachedCount = await cache.get<{ count: number }>(cacheKey)
+    if (cachedCount !== null) {
+      if (isRedisReady()) {
+        console.log(`[Cache] 歌曲数量缓存命中: ${cacheKey}, 数量: ${cachedCount.count}`)
+      }
+      return cachedCount
+    }
+
+    // 缓存未命中，查询数据库
+    let countQuery = db.select({ count: count() }).from(songs)
+
+    if (semester) {
+      countQuery = countQuery.where(eq(songs.semester, semester))
+    }
+
+    const result = await countQuery
+    const totalCount = result[0]?.count || 0
+
+    const response = {
+      count: totalCount
+    }
+
+    // 缓存结果（5分钟）
+    await cache.set(cacheKey, response)
+    if (isRedisReady()) {
+      console.log(`[Cache] 歌曲数量设置缓存: ${cacheKey}, 数量: ${totalCount}`)
+    }
+
+    return response
+  } catch (error) {
+    console.error('获取歌曲数量失败:', error)
+    throw createError({
+      statusCode: 500,
+      message: '获取歌曲数量失败'
+    })
+  }
+})