i18n/ja_jp (#14)

README.md

@@ -46,6 +46,7 @@ The response data format as follow:
  - `fr_fr`: French
  - `ar_sa`: Arabic
  - `de_de`: German
+ - `ja_jp`: Japanese
 
 If `LANG` is specified(and is valid), response data will get specified LANG's `title` and `explanation`.  
 For example, set `LANG` as `Traditional Chinese`:

i18n/index.js

@@ -6,5 +6,6 @@ module.exports = {
   cs_cz: require('./cs_cz'),
   fr_fr: require('./fr_fr'),
   ar_sa: require('./ar_sa'),
-  de_de: require('./de_de')
+  de_de: require('./de_de'),
+  ja_jp: require('./ja_jp')
 };

i18n/ja_jp.js

@@ -0,0 +1,45 @@
+'use strict';
+
+const LANG = 'ja_jp';
+const BASE_URL = 'http://home.u05.itscom.net/apodjpn/apodj';
+
+const handleError = require('../utils/handleError').common;
+const notFoundError = require('../utils/handleError').notFound;
+const request = require('request');
+const cheerio = require('cheerio');
+const decoder = require('../utils/utils').decoder;
+
+function buildUrl(date) {
+  let dateArray = date.split('-');
+  return `${BASE_URL}/${dateArray[0]}/${dateArray[0]}${dateArray[1]}/jp${dateArray[0].slice(2)}${dateArray[1]}${dateArray[2]}.html`;
+}
+
+function craw(baseData, callback) {
+  let url = buildUrl(baseData.date);
+
+  request({
+      url: url,
+      encoding: null
+    }, function(error, response, buf) {
+      if (handleError(error, response)) {
+        return callback(handleError(error, response));
+      }
+
+      let decoded = decoder(buf);
+
+      let $ = cheerio.load(decoded);
+      let title = $('body > table  > tr:nth-child(2) > td:nth-child(2) ').text().trim();
+      let explanation = $('body > center > p:nth-child(1)').text().trim();
+
+      if (!title || !explanation) {
+        return callback(notFoundError(baseData.date, LANG));
+      }
+
+      baseData.title = title;
+      baseData.explanation = explanation;
+      baseData.lang = LANG;
+      return callback(null, baseData);
+    });
+}
+
+module.exports = craw;

test/i18n.js

@@ -86,4 +86,15 @@ describe('i18n', function () {
         });
     });
 
+    it('should success with ja_jp', function (done) {
+        apod.get({
+            DATE: '2016-05-11',
+            LANG: 'ja_jp'
+        }, function (err, data) {
+            expect(err).to.be.null;
+            validateData(data);
+            done();
+        });
+    });
+
 });