Switch from restler to unirest

restler is buggy and doesn't support utf8 multipart requests

lib/functions/argument-parser.js

@@ -33,8 +33,13 @@ const ESCAPABLE = '.^$*+?()[{\\|}]'.split('');
  * @return {object} Parsed arguments
  */
 export default function argumentParser(format, string) {
-  string = string.replace(/[^\s]+/, '');
-  format = format.replace(/[^\s]+/, '');
+  string = string.replace(/[^\s]+/, '').trim();
+  format = format.replace(/[^\s]+/, '').trim();
+
+  if (!string || !format) {
+    return {};
+  }
+
   let indexes = [];
 
   format = format.replace(/\s/g, '\\s*');

lib/functions/fetch.js

@@ -1,18 +1,24 @@
-import restler from 'restler';
+import unirest from 'unirest';
 
 export default function fetch(path, data = {}) {
   return new Promise((resolve, reject) => {
-    const method = Object.keys(data).length ? 'POST' : 'GET';
-    const multipart = method === 'POST' ? true : false;
+    const files = {};
 
-    restler.request('https://api.telegram.org/bot' + path, {
-      data, method, multipart
-    }).on('complete', response => {
-      try {
-        let json = JSON.parse(response);
-        resolve(json);
-      } catch(e) {
-        reject(e);
+    for (let key of Object.keys(data)) {
+      if (data[key].file) {
+        files[key] = data[key].file;
+        delete data[key];
+      }
+    }
+
+    unirest.post('https://api.telegram.org/bot' + path)
+    .field(data)
+    .attach(files)
+    .end(response => {
+      if (response.statusType === 4 || response.statusType === 5) {
+        reject(response);
+      } else {
+        resolve(response.body);
       }
     });
   });

lib/index.js

@@ -109,7 +109,7 @@ export default class Bot extends EventEmitter {
   command(command, listener) {
     const regex = /[^\s]+/;
 
-    const cmd = command.match(regex)[0];
+    const cmd = command.match(regex)[0].trim();
 
     this._userEvents.push({
       pattern: new RegExp(`^/${cmd}`),

lib/types/File.js

@@ -1,8 +1,5 @@
 import Base from './Base';
 import mime from 'mime';
-import fs from 'fs';
-import path from 'path';
-import restler from 'restler';
 
 const TYPES = ['photo', 'video', 'document', 'audio'];
 
@@ -40,14 +37,11 @@ export default class File extends Base {
    */
   file(file, fileType) {
     if (fileType) {
-      this.properties[fileType] = file;
+      this.properties[fileType] = {file: file};
 
       return this;
     }
 
-    const stat = fs.statSync(file);
-    const name = path.basename(file);
-
     let [type, extension] = mime.lookup(file).split('/');
     if (type === 'image') {
       type = 'photo';
@@ -61,7 +55,7 @@ export default class File extends Base {
       type = 'document';
     }
 
-    this.properties[type] = restler.file(file, name, stat.size, 'utf-8');
+    this.properties[type] = {file: file};
 
     this.method = `send${type[0].toUpperCase() + type.slice(1)}`;