file component and lib updated

pages/[...slug].tsx

@@ -9,6 +9,7 @@ import { createApiUrl, requestGet, IResponseItems } from 'src/next-lib'
 import { NextPage } from 'next'
 import { IBreadcumbsPart, IMeta, IPage, ITag, FileTokenData, Token } from 'src/types'
 import { joinTokens } from 'src/lib/tokens'
+import { size, ext } from 'src/lib/file'
 import { Html } from 'src/components/Html'
 
 function array<T>(value: T | T[]) {
@@ -37,7 +38,11 @@ const Youtube: React.SFC<{ url: string }> = props => {
     )
 }
 
-const File: React.SFC<FileTokenData> = props => (
+const File: React.SFC<FileTokenData> = props => {
+    const fileSize = size(props.file_size)
+    const format = ext(props.file_format)
+
+    return (
         <div className="document-row">
             <a href={props['url']} className="invisible">
                 <div className="document-row__image">
@@ -50,12 +55,13 @@ const File: React.SFC<FileTokenData> = props => (
             </div>
 
             <div className="document-row__file-info">
-            <a href="document['file_url']" target="_blank">
-                {props.file_format} ({props.file_size})
+                <a href={props.file_url} target="_blank">
+                    {format} ({fileSize})
                 </a>
             </div>
         </div>
-)
+    )
+}
 
 type Props = {
     title: string

src/lib/file.ts

@@ -1,16 +1,17 @@
-const getExt = (name: string) => /\.(\w+)$/.exec(name)[1]
-const defaultExt = (ext: string) => ext.toUpperCase()
-const exts = ['png', 'pdf', 'jpg', 'jpeg', 'gif', 'doc']
-const extd = ['ПНГ', 'ПДФ', 'ЖПГ', 'ЖПГ', 'ГИФ', 'ДОК']
 const units = ['байт', 'КБ', 'МБ', 'ГБ', 'ТБ', 'ПБ']
 
-export function ext(filname: string): string {
-    const ext = getExt(filname)
-    const i = exts.indexOf(ext)
+const mime = new Map([
+    ['application/pdf', 'ПДФ'],
+    ['image/jpeg', 'ЖПГ'],
+    ['image/png', 'ПНГ'],
+])
 
-    return i > -1
-        ? extd[i]
-        : defaultExt(ext)
+export function ext(mimeType: string): string {
+    if (mime.has(mimeType)) {
+        return mime.get(mimeType)
+    }
+
+    return mimeType
 }
 
 export function size(bytes: any, precision = 1): string {