refactor(ncm): playlist

adapter/routes.js

@@ -53,7 +53,7 @@ module.exports = (router, middlewares, controller) => {
 
   // Netease API
   router.get('/nm/search/:keyword', controller.netease.search)
-  // router.get('/nm/playlist/:id', controller.netease.playlist)
+  router.get('/nm/playlist/:id', controller.netease.playlist)
   // router.get('/nm/picture/:id/:height?', controller.netease.picture)
   // router.get('/nm/artist/:id', controller.netease.artist)
   // router.get('/nm/album/:id', controller.netease.album)

src/controllers/netease/playlist.js

@@ -0,0 +1,61 @@
+// This module is intended to search songs
+const winston = require('winston')
+const sdk = require('NeteaseCloudMusicApi')
+const Joi = require('joi')
+const Cache = require('../../cache')
+// validation schema
+const { ValidateParams } = require('../../utils/response')
+const schema = Joi.object({
+  id: Joi.number().min(1).max(1000000000000).required(),
+  s: Joi.number().min(1).max(10000).default(8),
+  nocache: Joi.boolean().default(false)
+})
+
+async function getPlaylistDetail (params, ctx) {
+  const {
+    id,
+    s
+  } = params
+  const result = await sdk.playlist_detail({
+    id,
+    s,
+    realIP: ctx.get('X-Real-IP')
+  })
+  if (result.status !== 200) {
+    ctx.body = {
+      status: result.status,
+      message: '上游错误',
+      data: result.body,
+      ts: Date.now()
+    }
+    return
+  }
+  return result.body
+}
+
+module.exports = async (ctx) => {
+  const params = Object.assign({}, ctx.params, ctx.query, ctx.request.body)
+  if (!await ValidateParams(params, schema, ctx)) { // validateParams
+    return
+  }
+  const data = await (params.nocache ? getPlaylistDetail(params, ctx) : Cache.remeber(
+    `nm:playlist:${params.id}`,
+    60 * 60 * 2, // 2 Hours
+    async () => {
+      return getPlaylistDetail(params, ctx)
+    }
+  ))
+  winston.verbose(data)
+  if (data.code !== 200) {
+    ctx.status = Number.parseInt(data.code)
+    ctx.body = {
+      status: data.code,
+      message: '上游错误',
+      data: data,
+      ts: Date.now()
+    }
+    return
+  }
+  ctx.status = 200
+  ctx.body = data
+}