From 8eada10e87c2d86232cfd39e20787cafd0ad9d3f Mon Sep 17 00:00:00 2001
From: Joshua Shoemaker <joshuashoemaker@outlook.com>
Date: Mon, 20 Feb 2023 21:47:14 -0600
Subject: [PATCH] feat: default document language select

---
 core/App/app.go                               |  21 ++++
 core/Document/Document.go                     |  28 +++--
 core/Session/Project.go                       |  16 ++-
 frontend/.eslintrc.json                       |   3 +-
 .../components/project/NewProjectModal.tsx    |  45 ++++++-
 frontend/components/utils/Search.tsx          |   7 +-
 .../components/workspace/DocumentRenderer.tsx |  46 ++++---
 .../components/workspace/LanguageSelect.tsx   |  87 +++++++++++++
 frontend/components/workspace/Main.tsx        |   6 +-
 .../workspace/NoSelectedDocument.tsx          |  13 ++
 frontend/components/workspace/Sidebar.tsx     | 119 +++++++++++++-----
 frontend/components/workspace/TextEditor.tsx  |  45 ++++---
 .../workspace/TextEditorButtons.tsx           |  12 +-
 frontend/components/workspace/TextPreview.tsx |   2 +-
 frontend/components/workspace/ToolTabs.tsx    |  25 ++--
 .../context/Project/makeDefaultProject.ts     |   1 +
 frontend/context/Project/provider.tsx         |  11 +-
 frontend/context/Project/types.ts             |  11 ++
 frontend/pages/index.tsx                      |  24 ++--
 .../useCases/createDiffEditorInteractions.ts  |  11 +-
 frontend/utils/classNames.ts                  |   3 +
 frontend/utils/getSupportedLanguages.ts       |   8 ++
 frontend/wailsjs/wailsjs/go/ipc/Channel.d.ts  |   4 +
 frontend/wailsjs/wailsjs/go/ipc/Channel.js    |   8 ++
 frontend/wailsjs/wailsjs/go/models.ts         |  96 ++++++++++++++
 ipc/Documents.go                              |  95 ++++++++++----
 ipc/JsonEntities.go                           |  44 ++++---
 ipc/Session.go                                |  33 ++++-
 28 files changed, 648 insertions(+), 176 deletions(-)
 create mode 100644 frontend/components/workspace/LanguageSelect.tsx
 create mode 100644 frontend/utils/classNames.ts
 create mode 100644 frontend/utils/getSupportedLanguages.ts

diff --git a/core/App/app.go b/core/App/app.go
index 93f3d12..86fdb1e 100644
--- a/core/App/app.go
+++ b/core/App/app.go
@@ -21,3 +21,24 @@ func GetInstance() *App {
 func (a *App) Startup(ctx context.Context) {
 	a.Context = ctx
 }
+
+type Language struct {
+	DisplayName   string
+	ProcessCode   string
+	TranslateCode string
+}
+
+func GetSuppportedLanguages() []Language {
+	return []Language{
+		{
+			DisplayName:   "English",
+			ProcessCode:   "eng",
+			TranslateCode: "en",
+		},
+		{
+			DisplayName:   "Hebrew",
+			ProcessCode:   "heb",
+			TranslateCode: "he",
+		},
+	}
+}
diff --git a/core/Document/Document.go b/core/Document/Document.go
index 1d746f6..2cc13ee 100644
--- a/core/Document/Document.go
+++ b/core/Document/Document.go
@@ -1,21 +1,25 @@
 package document
 
+import app "textualize/core/App"
+
 type Entity struct {
-	Id        string
-	GroupId   string
-	Name      string
-	Path      string
-	ProjectId string
-	Areas     []Area
+	Id              string
+	GroupId         string
+	Name            string
+	Path            string
+	ProjectId       string
+	Areas           []Area
+	DefaultLanguage app.Language
 }
 
 type Area struct {
-	Id     string
-	Name   string
-	StartX int
-	StartY int
-	EndX   int
-	EndY   int
+	Id       string
+	Name     string
+	StartX   int
+	StartY   int
+	EndX     int
+	EndY     int
+	Language app.Language
 }
 
 func (e *Entity) AddArea(a Area) {
diff --git a/core/Session/Project.go b/core/Session/Project.go
index 17b069c..f56a645 100644
--- a/core/Session/Project.go
+++ b/core/Session/Project.go
@@ -1,6 +1,18 @@
 package session
 
+import (
+	app "textualize/core/App"
+)
+
 type Project struct {
-	Id   string
-	Name string
+	Id             string
+	OrganizationId string
+	Name           string
+	Settings       ProjectSettings
+}
+
+type ProjectSettings struct {
+	DefaultProcessLanguage         app.Language
+	DefaultTranslateTargetLanguage app.Language
+	IsHosted                       bool
 }
diff --git a/frontend/.eslintrc.json b/frontend/.eslintrc.json
index 2509fdf..668d51e 100644
--- a/frontend/.eslintrc.json
+++ b/frontend/.eslintrc.json
@@ -3,7 +3,8 @@
   "rules": {
     "@next/next/no-img-element": "off",
     "quotes": ["warn", "single"],
-    "semi": ["warn", "never"]
+    "semi": ["warn", "never"],
+    "react-hooks/exhaustive-deps": "off"
   },
   "ignorePatterns": ["wailsjs/*"]
 }
diff --git a/frontend/components/project/NewProjectModal.tsx b/frontend/components/project/NewProjectModal.tsx
index a072084..232a103 100644
--- a/frontend/components/project/NewProjectModal.tsx
+++ b/frontend/components/project/NewProjectModal.tsx
@@ -1,4 +1,7 @@
-import { useRef } from 'react'
+import { Switch } from '@headlessui/react'
+import { useRef, useState } from 'react'
+import classNames from '../../utils/classNames'
+
 
 type Props = {
   onCreateNewProjectHandler: (projectName: string) => void
@@ -6,16 +9,17 @@ type Props = {
 
 const NewProjectModal = (props: Props) => {
   const projectNameRef = useRef<HTMLInputElement>(null)
+  const [isHostedProjectSelected, setIsHostedProjectSelected] = useState(false)
 
   return (
     <div className=" p-8 absolute top-2/4 -translate-y-1/2 left-2/4 -translate-x-1/2 z-50 bg-white shadow sm:rounded-lg">
       <div className="px-4 py-5 sm:p-6">
         <h3 className="text-lg font-medium leading-6 text-gray-900">Name Your New Project</h3>
         <div className="mt-2 max-w-xl text-sm text-gray-500">
-          <p>A unique name will be best. This <b>can</b> be changed later.</p>
+          <p>A unique name makes the project easier to identify later. This <b>can</b> be changed later.</p>
         </div>
-        <form className="mt-5 sm:flex sm:items-center">
-          <div className="w-full sm:max-w-xs">
+        <form className="mt-3 items-center">
+          <div className="w-full  mb-5">
             <label htmlFor="name" className="sr-only">
               Project Name
             </label>
@@ -25,17 +29,46 @@ const NewProjectModal = (props: Props) => {
               id="name"
               autoFocus
               className="block w-full rounded-md border-gray-300 shadow-sm focus:border-indigo-500 focus:ring-indigo-500 sm:text-sm text-gray-900"
-              placeholder="New Project"
+              placeholder="Project Name"
               ref={projectNameRef}
             />
           </div>
+
+          <Switch.Group as="div" className="flex items-center justify-between  mb-5">
+            <span className="flex flex-grow flex-col">
+              <Switch.Label as="span" className="text-sm font-medium text-gray-900" passive>
+                Hosted Project
+              </Switch.Label>
+              <Switch.Description as="span" className="text-sm text-gray-500">
+                A hosted project can store and process data on a server. This <b>can</b> be added later. <em className='text-xs'>Currently unavalible</em>
+              </Switch.Description>
+            </span>
+            <Switch
+              checked={isHostedProjectSelected}
+              onChange={setIsHostedProjectSelected}
+              disabled
+              className={classNames(
+                isHostedProjectSelected ? 'bg-indigo-600' : 'bg-gray-200',
+                'relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2'
+              )}
+            >
+              <span
+                aria-hidden="true"
+                className={classNames(
+                  isHostedProjectSelected ? 'translate-x-5' : 'translate-x-0',
+                  'pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out'
+                )}
+              />
+            </Switch>
+          </Switch.Group>
+
           <button
             type="submit"
             onClick={() => {
               if (!projectNameRef.current?.value) return
               props.onCreateNewProjectHandler(projectNameRef.current?.value)
             }}
-            className="mt-3 inline-flex w-full items-center justify-center rounded-md border border-transparent bg-indigo-600 px-4 py-2 font-medium text-white shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2 sm:mt-0 sm:ml-3 sm:w-auto sm:text-sm"
+            className="inline-flex w-full items-center justify-center rounded-md border border-transparent bg-indigo-600 px-4 py-2 font-medium text-white shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2 sm:mt-0 sm:w-auto sm:text-sm"
           >
             Start
           </button>
diff --git a/frontend/components/utils/Search.tsx b/frontend/components/utils/Search.tsx
index 861aa34..7a026f5 100644
--- a/frontend/components/utils/Search.tsx
+++ b/frontend/components/utils/Search.tsx
@@ -5,10 +5,7 @@ import { Fragment } from 'react'
 import { useNavigation } from '../../context/Navigation/provider'
 import { mainPages } from '../../context/Navigation/types'
 import UserAvatar from './UserAvatar'
-
-function classNames(...classes: any[]) {
-  return classes.filter(Boolean).join(' ')
-}
+import classNames from '../../utils/classNames'
 
 const Search = () => {
   const { setSelectedMainPage } = useNavigation()
@@ -75,7 +72,7 @@ const Search = () => {
             leaveFrom="transform opacity-100 scale-100"
             leaveTo="transform opacity-0 scale-95"
           >
-            <Menu.Items className="absolute right-0 z-10 mt-2 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none">
+            <Menu.Items className="absolute right-0 z-10 mt-1 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none">
               {userNavigation.map((item) => (
                 <Menu.Item key={item.name}>
                   {({ active }) => (
diff --git a/frontend/components/workspace/DocumentRenderer.tsx b/frontend/components/workspace/DocumentRenderer.tsx
index 35cf211..90cc452 100644
--- a/frontend/components/workspace/DocumentRenderer.tsx
+++ b/frontend/components/workspace/DocumentRenderer.tsx
@@ -4,6 +4,7 @@ import React, { useEffect, useRef } from 'react'
 import { useProject } from '../../context/Project/provider'
 import loadImage from '../../useCases/loadImage'
 import processImageArea from '../../useCases/processImageArea'
+import LanguageSelect from './LanguageSelect'
 
 const DocumentRenderer = () => {
   const { getSelectedDocument, requestAddArea } = useProject()
@@ -146,28 +147,33 @@ const DocumentRenderer = () => {
 
   useEffect(() => {
     if (selectedDocument?.path) applyDocumentToCanvas(selectedDocument.path)
-  }, [selectedDocument?.id])
-
-  useEffect(() => {
     applyAreasToCanvas()
-  }, [areas, areas?.length])
+  })
 
-  return <div className="relative">
-    <canvas
-      className="absolute border-4 border-dashed border-gray-200"
-      ref={documentCanvas}
-    />
-    <canvas
-      className="absolute border-4 border-transparent"
-      ref={areaCanvas}
-    />
-    <canvas
-      className="absolute border-4 border-transparent"
-      ref={drawingCanvas}
-      onMouseDown={handleMouseDown}
-      onMouseUp={handleMouseUp}
-      onMouseMove={handleMouseMove}
-    />
+  return <div className='relative'>
+    <div className='flex justify-between mt-2'>
+      <h1 className="text-2xl font-semibold text-gray-900">
+        {getSelectedDocument()?.name}
+      </h1>
+      <LanguageSelect shouldUpdateDocument defaultLanguage={selectedDocument?.defaultLanguage} />
+    </div>
+    <div className="relative mt-2">
+      <canvas
+        className="absolute border-4 border-dashed border-gray-200"
+        ref={documentCanvas}
+      />
+      <canvas
+        className="absolute border-4 border-transparent"
+        ref={areaCanvas}
+      />
+      <canvas
+        className="absolute border-4 border-transparent"
+        ref={drawingCanvas}
+        onMouseDown={handleMouseDown}
+        onMouseUp={handleMouseUp}
+        onMouseMove={handleMouseMove}
+      />
+    </div>
   </div>
 }
 
diff --git a/frontend/components/workspace/LanguageSelect.tsx b/frontend/components/workspace/LanguageSelect.tsx
new file mode 100644
index 0000000..145e778
--- /dev/null
+++ b/frontend/components/workspace/LanguageSelect.tsx
@@ -0,0 +1,87 @@
+import { Combobox } from '@headlessui/react'
+import { LanguageIcon } from '@heroicons/react/20/solid'
+import { CheckIcon, ChevronUpDownIcon } from '@heroicons/react/24/outline'
+import { useEffect, useState } from 'react'
+import { useProject } from '../../context/Project/provider'
+import classNames from '../../utils/classNames'
+import getSupportedLanguages from '../../utils/getSupportedLanguages'
+import { ipc } from '../../wailsjs/wailsjs/go/models'
+
+type forAreaType = { shouldUpdateArea?: true, shouldUpdateDocument?: never }
+type forDocumentType = { shouldUpdateDocument?: true, shouldUpdateArea?: never }
+type Props = (forAreaType | forDocumentType) & { defaultLanguage?: ipc.Language }
+
+const LanguageSelect = (props?: Props) => {
+  const { requestUpdateDocument, getSelectedDocument } = useProject()
+  const [languages, setLanguages] = useState<ipc.Language[]>([])
+  const [query, setQuery] = useState('')
+  const [selectedLanguage, setSelectedLanguage] = useState<ipc.Language | undefined>(props?.defaultLanguage)
+
+
+  const filteredLanguages = query === ''
+    ? languages
+    : languages.filter(l => {
+      return l.displayName.toLowerCase().includes(query.toLowerCase())
+    })
+
+  useEffect(() => {
+    if (languages.length === 0) {
+      getSupportedLanguages().then(response => {
+        setLanguages(response)
+      })
+    }
+  })
+
+  useEffect(() => {
+    if (props?.shouldUpdateDocument && selectedLanguage?.displayName) {
+      const currentDocument = { ...getSelectedDocument() }
+      currentDocument.defaultLanguage = selectedLanguage
+      requestUpdateDocument(currentDocument)
+    }
+  }, [selectedLanguage])
+
+
+  return <Combobox as="div" value={selectedLanguage} onChange={setSelectedLanguage}>
+    <div className="inline-block relative">
+      <Combobox.Input
+        className="w-full rounded-md border border-gray-300 bg-white py-2 pl-3 pr-10 shadow-sm focus:border-indigo-500 focus:outline-none focus:ring-1 focus:ring-indigo-500 sm:text-sm"
+        onChange={(event) => setQuery(event.target.value)}
+        displayValue={(language: ipc.Language) => language?.displayName}
+        placeholder='Document Language'
+      />
+      <Combobox.Button className="absolute inset-y-0 right-0 flex items-center rounded-r-md px-2 focus:outline-none">
+        <LanguageIcon className="h-5 w-5 text-gray-400" />
+        <ChevronUpDownIcon className="h-5 w-5 text-gray-400" aria-hidden="true" />
+      </Combobox.Button>
+
+      {filteredLanguages.length > 0 && (
+        <Combobox.Options className="absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-md bg-white py-1 text-base shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none sm:text-sm">
+          {filteredLanguages.map((l) => (
+            <Combobox.Option
+              key={l.displayName}
+              value={l}
+              className={({ active }) => classNames(
+                'relative cursor-default select-none py-2 pl-3 pr-9',
+                active ? 'bg-indigo-600 text-white' : 'text-gray-900'
+              )}>
+              {({ active, selected }) => <>
+                <span className={classNames('block truncate', selected && 'font-semibold')}>{l.displayName}</span>
+                {selected && (
+                  <span className={classNames(
+                    'absolute inset-y-0 right-0 flex items-center pr-4',
+                    active ? 'text-white' : 'text-indigo-600'
+                  )}>
+                    <CheckIcon className="h-5 w-5" aria-hidden="true" />
+                  </span>
+                )}
+              </>
+              }
+            </Combobox.Option>
+          ))}
+        </Combobox.Options>
+      )}
+    </div>
+  </Combobox>
+}
+
+export default LanguageSelect
diff --git a/frontend/components/workspace/Main.tsx b/frontend/components/workspace/Main.tsx
index 3292dbc..64c57fa 100644
--- a/frontend/components/workspace/Main.tsx
+++ b/frontend/components/workspace/Main.tsx
@@ -22,9 +22,9 @@ const renderSelectedWorkSpace = () => {
         <div className="mx-auto  px-4 sm:px-6 md:px-8">
           <div className="py-1">
             <div className="mx-auto px-4 sm:px-6 md:px-8">
-              <h1 className="text-2xl font-semibold text-gray-900">
-                {getSelectedDocument()?.name || 'Image Processor'}
-              </h1>
+              {!getSelectedDocument()?.id ? <h1 className="text-2xl mt-2 font-semibold text-gray-900">
+                Image Processor
+              </h1> : ''}
             </div>
             { renderSelectedWorkSpace() }
           </div>
diff --git a/frontend/components/workspace/NoSelectedDocument.tsx b/frontend/components/workspace/NoSelectedDocument.tsx
index 1dc10db..1bebea6 100644
--- a/frontend/components/workspace/NoSelectedDocument.tsx
+++ b/frontend/components/workspace/NoSelectedDocument.tsx
@@ -1,9 +1,22 @@
 import { DocumentPlusIcon } from '@heroicons/react/24/outline'
+import { useProject } from '../../context/Project/provider'
 
 export default function NoSelectedDocument() {
+  const { requestAddDocument, setSelectedDocumentId } = useProject()
+
+  const onAddDocumentClickHandler = async () => {
+    const documentName = 'Untitled Document'
+
+    const response = await requestAddDocument('', documentName)
+    if (!response.id) return
+
+    setSelectedDocumentId(response.id)
+  }
+
   return (
     <button
       type="button"
+      onClick={() => onAddDocumentClickHandler()}
       className="relative block w-full rounded-lg border-4 border-dashed border-gray-200 p-12 text-center hover:border-gray-400 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2"
     >
       <svg
diff --git a/frontend/components/workspace/Sidebar.tsx b/frontend/components/workspace/Sidebar.tsx
index 5218de3..8d7e294 100644
--- a/frontend/components/workspace/Sidebar.tsx
+++ b/frontend/components/workspace/Sidebar.tsx
@@ -4,6 +4,7 @@ import React, { useRef, useState } from 'react'
 import { PlusIcon, XMarkIcon, DocumentPlusIcon } from '@heroicons/react/20/solid'
 import { ipc } from '../../wailsjs/wailsjs/go/models'
 import { useProject } from '../../context/Project/provider'
+import classNames from '../../utils/classNames'
 
 type GroupNavigationItem = {
   id: string,
@@ -43,29 +44,28 @@ const getNavigationProps = (documents: ipc.Document[], groups: ipc.Group[]): Gro
   return [
     ...groupsWithDocuments,
     {
-      id: 'Uncategorized',
+      id: '',
       name: 'Uncategorized',
       documents: documentsWithoutGroup
     }
   ]
 }
 
-function classNames(...classes: any[]) {
-  return classes.filter(Boolean).join(' ')
-}
-
 function Sidebar() {
   const [selectedGroupId, setSelectedGroupId] = useState('')
   const [isAddNewDocumentInputShowing, setIsAddNewDocumentInputShowing] = useState(false)
+  const [isEditDocumentNameInputShowing, setIsEditDocumentNameInputShowing] = useState(false)
   const [isAddNewGroupInputShowing, setIsAddNewGroupInputShowing] = useState(false)
   const [isEditAreaNameInputShowing, setIsEditAreaNameInputShowing] = useState(false)
   const addDocumentTextInput = useRef<HTMLInputElement>(null)
   const addGroupTextInput = useRef<HTMLInputElement>(null)
   const editAreaNameTextInput = useRef<HTMLInputElement>(null)
+  const editDocumentNameTextInput = useRef<HTMLInputElement>(null)
 
   const {
     documents,
     groups,
+    getSelectedDocument,
     getAreaById,
     requestUpdateArea,
     requestAddDocument,
@@ -75,6 +75,7 @@ function Sidebar() {
     selectedDocumentId,
     setSelectedDocumentId,
     currentSession,
+    requestUpdateDocument,
   } = useProject()
 
   const navigation = getNavigationProps(documents, groups)
@@ -115,7 +116,7 @@ function Sidebar() {
     setSelectedAreaId(areaId)
   }
 
-  const onAreaDoubleclick = (areaId: string) => {
+  const onAreaDoubleClick = (areaId: string) => {
     const documentIdOfArea = getDocumentIdFromAreaId(areaId)
     setIsEditAreaNameInputShowing(true)
     console.log('double click')
@@ -132,6 +133,14 @@ function Sidebar() {
     setIsAddNewGroupInputShowing(false)
   }
 
+  const onDocumentDoubleClickHandler = (docuemntId: string) => {
+    setIsEditDocumentNameInputShowing(true)
+  }
+
+  const onDocumentInputBlur = () => {
+    setIsEditDocumentNameInputShowing(false)
+  }
+
   const onCancelAddGroupClickHandler = () => {
     setIsAddNewGroupInputShowing(false)
   }
@@ -153,6 +162,17 @@ function Sidebar() {
     setIsEditAreaNameInputShowing(false)
   }
 
+  const onConfirmDocumentNameChangeHandler = async (documentName: string) => {
+    const documentToUpdate = { ...getSelectedDocument() }
+    if (documentToUpdate) {
+      documentToUpdate.name = documentName
+      requestUpdateDocument(documentToUpdate)
+        .then(response => console.log('onConfirmDocumentNameChangeHandler response: ', response))
+        .catch(console.error)
+    }
+    setIsEditDocumentNameInputShowing(false)
+  }
+
   const onConfirmAddDocumentClickHandler = async (groupId: string) => {
     const documentName = addDocumentTextInput.current?.value
     if (!documentName) return
@@ -294,8 +314,10 @@ function Sidebar() {
             {group.documents.map((d, index) => (
               <li className='p-0 m-0' key={d.id}>
                 {!d.areas.length
-                  ? <div
+                  ?
+                  <div
                     onClick={() => onDocumentClickHandler(d.id)}
+                    onDoubleClick={() => onDocumentDoubleClickHandler(d.id)}
                     className={classNames(
                       d.id === selectedDocumentId
                         ? 'bg-gray-900 text-white'
@@ -303,30 +325,22 @@ function Sidebar() {
                       'group items-center py-2 text-base font-medium rounded-b-md pl-10',
                       index !== 0 ? 'rounded-t-md' : '',
                     )}>
-                    <a
-                      role='button'
-                      className={classNames(
-                        d.id === selectedDocumentId
-                          ? 'bg-gray-900 text-white'
-                          : 'text-gray-300 hover:bg-gray-700 hover:text-white',
-                        'text-left font-medium text-sm rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 '
-                      )}
-                    >
-                      {d.name}
-                    </a>
-                  </div>
-                  : <details>
-                    <summary
-                      onClick={() => onDocumentClickHandler(d.id)}
-                      className={classNames(
-                        d.id === selectedDocumentId
-                          ? 'bg-gray-900 text-white'
-                          : 'text-gray-300 hover:bg-gray-700 hover:text-white',
-                        'group items-center py-2 text-base font-medium rounded-b-md pl-6',
-                        index !== 0 ? 'rounded-t-md' : '',
-
-                      )}>
-                      <a
+                    {selectedDocumentId === d.id && isEditDocumentNameInputShowing
+                      ? <input
+                        type="text"
+                        name="documentName"
+                        id="documentName"
+                        autoFocus
+                        className="h-8 text-white placeholder-gray-400 bg-gray-900 bg-opacity-5 block w-full rounded-none rounded-l-md border-late-700 focus:border-indigo-500 focus:ring-indigo-500 sm:text-sm"
+                        defaultValue={d.name}
+                        onBlur={onDocumentInputBlur}
+                        onKeyDown={(event) => {
+                          onEnterHandler(event,
+                            () => onConfirmDocumentNameChangeHandler(event.currentTarget.value))
+                        }}
+                        ref={editDocumentNameTextInput}
+                      />
+                      : <a
                         role='button'
                         className={classNames(
                           d.id === selectedDocumentId
@@ -337,6 +351,47 @@ function Sidebar() {
                       >
                         {d.name}
                       </a>
+                    }
+                  </div>
+                  : <details>
+                    <summary
+                      onClick={() => onDocumentClickHandler(d.id)}
+                      onDoubleClick={() => onDocumentDoubleClickHandler(d.id)}
+                      className={classNames(
+                        d.id === selectedDocumentId
+                          ? 'bg-gray-900 text-white'
+                          : 'text-gray-300 hover:bg-gray-700 hover:text-white',
+                        'group items-center py-2 text-base font-medium rounded-b-md pl-6',
+                        index !== 0 ? 'rounded-t-md' : '',
+
+                      )}>
+                      {selectedDocumentId === d.id && isEditDocumentNameInputShowing
+                        ? <input // TODO: this
+                          type="text"
+                          name="documentName"
+                          id="documentName"
+                          autoFocus
+                          className="h-8 text-white placeholder-gray-400 bg-gray-900 bg-opacity-5 block w-full rounded-none rounded-l-md border-late-700 focus:border-indigo-500 focus:ring-indigo-500 sm:text-sm"
+                          defaultValue={d.name}
+                          onBlur={onDocumentInputBlur}
+                          onKeyDown={(event) => {
+                            onEnterHandler(event,
+                              () => onConfirmDocumentNameChangeHandler(event.currentTarget.value))
+                          }}
+                          ref={editDocumentNameTextInput}
+                        />
+                        : <a
+                          role='button'
+                          className={classNames(
+                            d.id === selectedDocumentId
+                              ? 'bg-gray-900 text-white'
+                              : 'text-gray-300 hover:bg-gray-700 hover:text-white',
+                            'text-left font-medium text-sm rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 '
+                          )}
+                        >
+                          {d.name}
+                        </a>
+                      }
                     </summary>
                     <ul>
                       {d.areas.map((a, index) => (
@@ -359,7 +414,7 @@ function Sidebar() {
                             : <a
                               role='button'
                               onClick={() => onAreaClick(a.id)}
-                              onDoubleClick={() => onAreaDoubleclick(a.id)}
+                              onDoubleClick={() => onAreaDoubleClick(a.id)}
                               className={classNames('text-gray-300 hover:bg-gray-700 hover:text-white',
                                 'group w-full flex items-center pr-2 py-2 text-left font-medium pl-8 text-xs',
                                 'rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 py-2 select-none',
diff --git a/frontend/components/workspace/TextEditor.tsx b/frontend/components/workspace/TextEditor.tsx
index 270daff..7be06f0 100644
--- a/frontend/components/workspace/TextEditor.tsx
+++ b/frontend/components/workspace/TextEditor.tsx
@@ -1,4 +1,4 @@
-import { DiffEditor } from '@monaco-editor/react'
+import { loader, DiffEditor } from '@monaco-editor/react'
 import { useEffect, useState } from 'react'
 import { useProject } from '../../context/Project/provider'
 import type { DiffOnMount } from '@monaco-editor/react/'
@@ -6,18 +6,29 @@ import TextEditorButtons from './TextEditorButtons'
 import createDiffEditorInteractions from '../../useCases/createDiffEditorInteractions'
 import TextPreview from './TextPreview'
 import createDebounce from '../../utils/createDebounce'
+import LanguageSelect from './LanguageSelect'
+
+loader.config({
+  paths: {
+    vs: 'https://cdn.jsdelivr.net/npm/monaco-editor@0.34.0/min/vs',
+  },
+})
 
 let editorInteractions: ReturnType<typeof createDiffEditorInteractions>
+const editorHeightOffset = 234
 
 const TextEditor = () => {
-  const { selectedDocumentId, getProcessedAreasByDocumentId, requestUpdateDocumentUserMarkdown, getUserMarkdownByDocumentId } = useProject()
-  const [editorHeight, setEditorHeight] = useState(window.innerHeight - 200)
+  const { getSelectedDocument, getProcessedAreasByDocumentId, requestUpdateDocumentUserMarkdown, getUserMarkdownByDocumentId } = useProject()
+  const [editorHeight, setEditorHeight] = useState(window.innerHeight - editorHeightOffset)
   const [editorValue, setEditorValue] = useState('')
   const [isEditorReady, setIsEditorReady] = useState(false)
   const [isPreviewOpen, setIsPreviewOpen] = useState(false)
   const [modifiedEditorValue, setModifiedEditorValue] = useState('')
 
-  const handleEditorDidMount: DiffOnMount = async (editor, monaco) => {
+  const selectedDocument = getSelectedDocument()
+  const selectedDocumentId = selectedDocument?.id || ''
+
+  const handleEditorDidMount: DiffOnMount = async (editor, _) => {
     const currentDocumentId = selectedDocumentId
 
     editorInteractions = createDiffEditorInteractions(editor)
@@ -66,18 +77,23 @@ const TextEditor = () => {
   }, [selectedDocumentId, getProcessedAreasByDocumentId])
 
   window.addEventListener('resize', () => {
-    setEditorHeight(window.innerHeight - 200)
+    setEditorHeight(window.innerHeight - editorHeightOffset)
   })
 
-  return <div className='relative m-0 p-0'>
-    {isEditorReady
-      ? <TextEditorButtons
-        isPreviewOpen={isPreviewOpen}
-        togglePreview={() => setIsPreviewOpen(!isPreviewOpen)}
-        editorInteractions={editorInteractions}
-      />
-      : ''
-    }
+  return <div className='m-0 p-0 relative'>
+    <span className="flex z-0 rounded-md shadow-sm mb-2 mt-2 justify-between">
+      {isEditorReady
+        ? <>
+          <TextEditorButtons
+            isPreviewOpen={isPreviewOpen}
+            togglePreview={() => setIsPreviewOpen(!isPreviewOpen)}
+            editorInteractions={editorInteractions}
+          />
+          <LanguageSelect shouldUpdateDocument defaultLanguage={selectedDocument?.defaultLanguage} />
+        </>
+        : ''
+      }
+    </span>
     <DiffEditor
       original={editorValue}
       modified={modifiedEditorValue}
@@ -87,6 +103,7 @@ const TextEditor = () => {
       options={{
         renderMarginRevertIcon: true,
         enableSplitViewResizing: false,
+        glyphMargin: true,
       }}
     />
 
diff --git a/frontend/components/workspace/TextEditorButtons.tsx b/frontend/components/workspace/TextEditorButtons.tsx
index e1fa9c5..669a8d9 100644
--- a/frontend/components/workspace/TextEditorButtons.tsx
+++ b/frontend/components/workspace/TextEditorButtons.tsx
@@ -1,10 +1,7 @@
 import { ListBulletIcon, MinusIcon } from '@heroicons/react/20/solid'
 import { EyeIcon, EyeSlashIcon } from '@heroicons/react/24/outline'
 import createDiffEditorInteractions, { MarkdownOperator } from '../../useCases/createDiffEditorInteractions'
-
-function classNames(...classes: any[]) {
-  return classes.filter(Boolean).join(' ')
-}
+import classNames from '../../utils/classNames'
 
 type Props = {
   editorInteractions: ReturnType<typeof createDiffEditorInteractions>
@@ -14,7 +11,8 @@ type Props = {
 
 const TextEditorButtons = (props: Props) => {
   const { editorInteractions, togglePreview } = props
-  return <span className="isolate inline-flex rounded-md shadow-sm">
+
+  return <span className="inline-flex rounded-md shadow-sm">
     <button
       type="button"
       onClick={togglePreview}
@@ -143,7 +141,7 @@ const TextEditorButtons = (props: Props) => {
       type="button"
       onClick={() => editorInteractions.insertMarkdownOperator(MarkdownOperator.DIVIDER)}
       className={classNames(
-        'text-sm relative inline-flex items-center rounded-r-md border',
+        'text-sm relative inline-flex items-center border',
         'border-gray-300 bg-white px-2 py-0 text-gray-700 hover:bg-gray-50',
         'focus:z-10 focus:border-indigo-500 focus:outline-none focus:ring-1',
         'focus:ring-indigo-500 italic',
@@ -151,6 +149,8 @@ const TextEditorButtons = (props: Props) => {
       <span className="sr-only">Divider</span>
       <MinusIcon className="h-5 w-5" aria-hidden="true" />
     </button>
+
+    
   </span>
 }
 
diff --git a/frontend/components/workspace/TextPreview.tsx b/frontend/components/workspace/TextPreview.tsx
index 5e444d3..af261dc 100644
--- a/frontend/components/workspace/TextPreview.tsx
+++ b/frontend/components/workspace/TextPreview.tsx
@@ -4,7 +4,7 @@ type Props = { markdown: string, height: number }
 
 const TextPreview = (props: Props) => (
   <div
-    className='absolute w-[calc(50%-14px)] top-[30px] bg-white overflow-y-scroll p-4 m-0'
+    className='absolute w-[calc(50%-14px)] top-[46px] bg-white overflow-y-scroll p-4 m-0'
     style={{ 'height': `${props.height}px` }}>
     <ReactMarkdown
       components={{
diff --git a/frontend/components/workspace/ToolTabs.tsx b/frontend/components/workspace/ToolTabs.tsx
index 79a25c8..a92e572 100644
--- a/frontend/components/workspace/ToolTabs.tsx
+++ b/frontend/components/workspace/ToolTabs.tsx
@@ -1,15 +1,20 @@
 import { useNavigation } from '../../context/Navigation/provider'
 import { workspaces } from '../../context/Navigation/types'
+import classNames from '../../utils/classNames'
 
 const tabs = [
   { displayName: 'Processor', type: workspaces.PROCESSOR },
   { displayName: 'Text Editor', type: workspaces.TEXTEDITOR },
-  { displayName: 'Translator', type: workspaces.TRANSLATOR },
-  { displayName: 'Details', type: workspaces.DETAILS },
+  { displayName: 'Translator', type: workspaces.TRANSLATOR, disabled: true, },
+  { displayName: 'Details', type: workspaces.DETAILS, disabled: true, },
 ]
 
-function classNames(...classes: string[]) {
-  return classes.filter(Boolean).join(' ')
+const getTabClasses = (isTabSelected: boolean, isDisabled?: boolean) => {
+  if (isDisabled) return classNames('cursor-not-allowed w-1/4 py-4 px-1 text-center border-b-2 font-medium text-gray-200 text-sm')
+
+  const baseClasses = 'cursor-pointer w-1/4 py-4 px-1 text-center border-b-2 font-medium text-sm'
+  if (isTabSelected) return classNames(baseClasses, 'border-indigo-500 text-indigo-600')
+  else return classNames(baseClasses, 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300')
 }
 
 export default function ToolTabs() {
@@ -24,14 +29,12 @@ export default function ToolTabs() {
           <nav className="-mb-px flex" aria-label="Tabs">
             {tabs.map((tab) => (
               <a
+                aria-disabled={tab.disabled}
                 key={tab.displayName}
-                onClick={_ => setSelectedWorkspace(tab.type)}
-                className={classNames(
-                  getIsSelectedTab(tab.type)
-                    ? 'border-indigo-500 text-indigo-600'
-                    : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300',
-                  'cursor-pointer w-1/4 py-4 px-1 text-center border-b-2 font-medium text-sm'
-                )}
+                onClick={_ =>  {
+                  if (!tab.disabled) setSelectedWorkspace(tab.type)
+                }}
+                className={getTabClasses(getIsSelectedTab(tab.type), tab.disabled)}
                 aria-current={getIsSelectedTab(tab.type) ? 'page' : undefined}
               >
                 {tab.displayName}
diff --git a/frontend/context/Project/makeDefaultProject.ts b/frontend/context/Project/makeDefaultProject.ts
index 56cf22d..06e433f 100644
--- a/frontend/context/Project/makeDefaultProject.ts
+++ b/frontend/context/Project/makeDefaultProject.ts
@@ -23,6 +23,7 @@ const makeDefaultProject = (): ProjectContextType => ({
   createNewProject: (name: string) => Promise.resolve(new ipc.Session()),
   requestUpdateCurrentUser: (updatedUserProps: UserProps) => Promise.resolve(new ipc.User()),
   requestChooseUserAvatar: () => Promise.resolve(''),
+  requestUpdateDocument: ({}) => Promise.resolve(new ipc.Document),
 })
 
 export default makeDefaultProject
diff --git a/frontend/context/Project/provider.tsx b/frontend/context/Project/provider.tsx
index 855378b..a1b860c 100644
--- a/frontend/context/Project/provider.tsx
+++ b/frontend/context/Project/provider.tsx
@@ -7,9 +7,10 @@ import {
   RequestAddDocument, RequestAddDocumentGroup, RequestAddProcessedArea,
   RequestUpdateArea, RequestUpdateCurrentUser, RequestUpdateDocumentUserMarkdown,
   RequestChooseUserAvatar,
+  RequestUpdateDocument,
 } from '../../wailsjs/wailsjs/go/ipc/Channel'
 import { ipc } from '../../wailsjs/wailsjs/go/models'
-import { AddAreaProps, AreaProps, ProjectContextType, ProjectProps, UserProps } from './types'
+import { AddAreaProps, AreaProps, ProjectContextType, ProjectProps, UpdateDocumentRequest, UserProps } from './types'
 import makeDefaultProject from './makeDefaultProject'
 
 const ProjectContext = createContext<ProjectContextType>(makeDefaultProject())
@@ -122,6 +123,13 @@ export function ProjectProvider({ children, projectProps }: Props) {
     return filePathResponse
   }
 
+  const requestUpdateDocument = async (docuemntProps: UpdateDocumentRequest) => {
+    console.log('request: ', docuemntProps)
+    const response = await RequestUpdateDocument(new ipc.Document(docuemntProps))
+    await updateDocuments()
+    return response
+  }
+
   useEffect(() => {
     if (!documents.length && !groups.length) updateDocuments()
   }, [documents.length, groups.length])
@@ -148,6 +156,7 @@ export function ProjectProvider({ children, projectProps }: Props) {
     createNewProject,
     requestUpdateCurrentUser,
     requestChooseUserAvatar,
+    requestUpdateDocument,
   }
 
   return <ProjectContext.Provider value={value}>
diff --git a/frontend/context/Project/types.ts b/frontend/context/Project/types.ts
index e7cf3fb..27fe656 100644
--- a/frontend/context/Project/types.ts
+++ b/frontend/context/Project/types.ts
@@ -26,6 +26,16 @@ export type UserProps = {
   email?: string
 }
 
+export type UpdateDocumentRequest = {
+  id?: string,
+  projectId?: string,
+  groupId?: string,
+  name?: string,
+  path?: string,
+  areas?: ipc.Area[]
+  defaultLanguage?: ipc.Language
+}
+
 export type ProjectContextType = {
   getSelectedDocument: () => ipc.Document | undefined
   getAreaById: (areaId: string) => ipc.Area | undefined
@@ -45,4 +55,5 @@ export type ProjectContextType = {
   createNewProject: (name: string) => Promise<ipc.Session>
   requestUpdateCurrentUser: (updatedUserProps: UserProps) => Promise<ipc.User>
   requestChooseUserAvatar: () => Promise<string>
+  requestUpdateDocument: (request: UpdateDocumentRequest) => Promise<ipc.Document>
 } & ProjectProps
\ No newline at end of file
diff --git a/frontend/pages/index.tsx b/frontend/pages/index.tsx
index 1cd390f..4aa8a63 100644
--- a/frontend/pages/index.tsx
+++ b/frontend/pages/index.tsx
@@ -1,5 +1,4 @@
 import { NextPage } from 'next'
-import { useEffect } from 'react'
 import MainHead from '../components/head'
 import MainProject from '../components/project/Main'
 import User from '../components/settings/User'
@@ -12,31 +11,24 @@ import { useProject } from '../context/Project/provider'
 const Home: NextPage = () => {
 
   const { currentSession } = useProject()
-  const { selectedMainPage, setSelectedMainPage } = useNavigation()
-
-  useEffect(() => {
-    if (!currentSession?.user?.localId) setSelectedMainPage(mainPages.EDITUSER)
-    else if (!currentSession?.project?.id) setSelectedMainPage(mainPages.SELECTPROJECT)
-  },)
+  const { selectedMainPage } = useNavigation()
 
   const renderSelectedMainPage = () => {
     if (selectedMainPage === mainPages.SELECTPROJECT) return <MainProject />
     else if (selectedMainPage === mainPages.EDITUSER) return <User />
     else if ((selectedMainPage === mainPages.WORKSPACE) && currentSession?.project?.id) {
       return <>
-      <Navigation />
-      <MainWorkspace />
-    </>
+        <Navigation />
+        <MainWorkspace />
+      </>
     }
     else return <MainProject />
   }
 
-  return (
-    <>
-      <MainHead />
-      { renderSelectedMainPage() }
-    </>
-  )
+  return <>
+    <MainHead />
+    {renderSelectedMainPage()}
+  </>
 }
 
 export default Home
diff --git a/frontend/useCases/createDiffEditorInteractions.ts b/frontend/useCases/createDiffEditorInteractions.ts
index 6d69a6f..e2d7a41 100644
--- a/frontend/useCases/createDiffEditorInteractions.ts
+++ b/frontend/useCases/createDiffEditorInteractions.ts
@@ -10,7 +10,7 @@ export enum MarkdownOperator {
   ITALLICS = '_',
   BOLD = '**',
   BULLET = '* ',
-  DIVIDER = '\n\n---\n\n'
+  DIVIDER = '\n\n---\n'
 }
 
 const wrapperOperators = [
@@ -43,8 +43,6 @@ const createDiffEditorInteractions = (editor: monaco.editor.IStandaloneDiffEdito
       })
 
       if (operator == MarkdownOperator.DIVIDER) {
-        console.log('lineOfCursor:', lineOfCursor)
-        console.log('lengthOfLine:', lengthOfLine)
         range = {
           startLineNumber,
           startColumn: lengthOfLine,
@@ -72,12 +70,9 @@ const createDiffEditorInteractions = (editor: monaco.editor.IStandaloneDiffEdito
         newText = `${operator}${modifiedEditor.getModel()?.getValueInRange(range)}`
       }
 
-      modifiedEditor.executeEdits('editor', [{
-        range,
-        text: newText
-      }])
-
+      modifiedEditor.executeEdits('editor', [{ range, text: newText }])
       modifiedEditor.pushUndoStop()
+      modifiedEditor.focus()
     }
   }
 }
diff --git a/frontend/utils/classNames.ts b/frontend/utils/classNames.ts
new file mode 100644
index 0000000..70f3187
--- /dev/null
+++ b/frontend/utils/classNames.ts
@@ -0,0 +1,3 @@
+const classNames = (...classes: any[]) => classes.filter(Boolean).join(' ')
+
+export default classNames
diff --git a/frontend/utils/getSupportedLanguages.ts b/frontend/utils/getSupportedLanguages.ts
new file mode 100644
index 0000000..1e7dfc6
--- /dev/null
+++ b/frontend/utils/getSupportedLanguages.ts
@@ -0,0 +1,8 @@
+import { GetSuppportedLanguages } from '../wailsjs/wailsjs/go/ipc/Channel'
+
+const getSupportedLanguages = async () => {
+  const response = await GetSuppportedLanguages()
+  return response
+}
+
+export default getSupportedLanguages
diff --git a/frontend/wailsjs/wailsjs/go/ipc/Channel.d.ts b/frontend/wailsjs/wailsjs/go/ipc/Channel.d.ts
index e852876..a3cc3e8 100755
--- a/frontend/wailsjs/wailsjs/go/ipc/Channel.d.ts
+++ b/frontend/wailsjs/wailsjs/go/ipc/Channel.d.ts
@@ -14,6 +14,8 @@ export function GetDocuments():Promise<ipc.GetDocumentsResponse>;
 
 export function GetProcessedAreasByDocumentId(arg1:string):Promise<Array<ipc.ProcessedArea>>;
 
+export function GetSuppportedLanguages():Promise<Array<ipc.Language>>;
+
 export function GetUserMarkdownByDocumentId(arg1:string):Promise<ipc.UserMarkdown>;
 
 export function RequestAddArea(arg1:string,arg2:ipc.Area):Promise<ipc.Area>;
@@ -30,4 +32,6 @@ export function RequestUpdateArea(arg1:ipc.Area):Promise<ipc.Area>;
 
 export function RequestUpdateCurrentUser(arg1:ipc.User):Promise<ipc.User>;
 
+export function RequestUpdateDocument(arg1:ipc.Document):Promise<ipc.Document>;
+
 export function RequestUpdateDocumentUserMarkdown(arg1:string,arg2:string):Promise<ipc.UserMarkdown>;
diff --git a/frontend/wailsjs/wailsjs/go/ipc/Channel.js b/frontend/wailsjs/wailsjs/go/ipc/Channel.js
index f684885..3bf7230 100755
--- a/frontend/wailsjs/wailsjs/go/ipc/Channel.js
+++ b/frontend/wailsjs/wailsjs/go/ipc/Channel.js
@@ -26,6 +26,10 @@ export function GetProcessedAreasByDocumentId(arg1) {
   return window['go']['ipc']['Channel']['GetProcessedAreasByDocumentId'](arg1);
 }
 
+export function GetSuppportedLanguages() {
+  return window['go']['ipc']['Channel']['GetSuppportedLanguages']();
+}
+
 export function GetUserMarkdownByDocumentId(arg1) {
   return window['go']['ipc']['Channel']['GetUserMarkdownByDocumentId'](arg1);
 }
@@ -58,6 +62,10 @@ export function RequestUpdateCurrentUser(arg1) {
   return window['go']['ipc']['Channel']['RequestUpdateCurrentUser'](arg1);
 }
 
+export function RequestUpdateDocument(arg1) {
+  return window['go']['ipc']['Channel']['RequestUpdateDocument'](arg1);
+}
+
 export function RequestUpdateDocumentUserMarkdown(arg1, arg2) {
   return window['go']['ipc']['Channel']['RequestUpdateDocumentUserMarkdown'](arg1, arg2);
 }
diff --git a/frontend/wailsjs/wailsjs/go/models.ts b/frontend/wailsjs/wailsjs/go/models.ts
index 392d4cd..3199f2e 100755
--- a/frontend/wailsjs/wailsjs/go/models.ts
+++ b/frontend/wailsjs/wailsjs/go/models.ts
@@ -1,5 +1,21 @@
 export namespace ipc {
 	
+	export class Language {
+	    displayName: string;
+	    processCode: string;
+	    translateCode: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new Language(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.displayName = source["displayName"];
+	        this.processCode = source["processCode"];
+	        this.translateCode = source["translateCode"];
+	    }
+	}
 	export class Area {
 	    id: string;
 	    name: string;
@@ -7,6 +23,7 @@ export namespace ipc {
 	    startY: number;
 	    endX: number;
 	    endY: number;
+	    language: Language;
 	
 	    static createFrom(source: any = {}) {
 	        return new Area(source);
@@ -20,7 +37,26 @@ export namespace ipc {
 	        this.startY = source["startY"];
 	        this.endX = source["endX"];
 	        this.endY = source["endY"];
+	        this.language = this.convertValues(source["language"], Language);
 	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
 	}
 	export class Document {
 	    id: string;
@@ -29,6 +65,7 @@ export namespace ipc {
 	    path: string;
 	    projectId: string;
 	    areas: Area[];
+	    defaultLanguage: Language;
 	
 	    static createFrom(source: any = {}) {
 	        return new Document(source);
@@ -42,6 +79,7 @@ export namespace ipc {
 	        this.path = source["path"];
 	        this.projectId = source["projectId"];
 	        this.areas = this.convertValues(source["areas"], Area);
+	        this.defaultLanguage = this.convertValues(source["defaultLanguage"], Language);
 	    }
 	
 		convertValues(a: any, classs: any, asMap: boolean = false): any {
@@ -113,6 +151,7 @@ export namespace ipc {
 		}
 	}
 	
+	
 	export class User {
 	    id: string;
 	    localId: string;
@@ -335,9 +374,45 @@ export namespace ipc {
 	
 	
 	
+	export class ProjectSettings {
+	    defaultProcessLanguage: Language;
+	    defaultTranslateTargetLanguage: Language;
+	    IsHosted: boolean;
+	
+	    static createFrom(source: any = {}) {
+	        return new ProjectSettings(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.defaultProcessLanguage = this.convertValues(source["defaultProcessLanguage"], Language);
+	        this.defaultTranslateTargetLanguage = this.convertValues(source["defaultTranslateTargetLanguage"], Language);
+	        this.IsHosted = source["IsHosted"];
+	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
+	}
 	export class Project {
 	    id: string;
+	    organizationId: string;
 	    name: string;
+	    settings: ProjectSettings;
 	
 	    static createFrom(source: any = {}) {
 	        return new Project(source);
@@ -346,9 +421,30 @@ export namespace ipc {
 	    constructor(source: any = {}) {
 	        if ('string' === typeof source) source = JSON.parse(source);
 	        this.id = source["id"];
+	        this.organizationId = source["organizationId"];
 	        this.name = source["name"];
+	        this.settings = this.convertValues(source["settings"], ProjectSettings);
 	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
 	}
+	
 	export class Session {
 	    project: Project;
 	    organization: Organization;
diff --git a/ipc/Documents.go b/ipc/Documents.go
index cf14b96..642f857 100644
--- a/ipc/Documents.go
+++ b/ipc/Documents.go
@@ -1,6 +1,7 @@
 package ipc
 
 import (
+	"fmt"
 	app "textualize/core/App"
 	document "textualize/core/Document"
 	session "textualize/core/Session"
@@ -19,7 +20,15 @@ func (c *Channel) GetDocumentById(id string) Document {
 	var jsonAreas []Area
 
 	for _, a := range foundDocument.Areas {
-		jsonAreas = append(jsonAreas, Area(a))
+		jsonAreas = append(jsonAreas, Area{
+			Id:       a.Id,
+			Name:     a.Name,
+			StartX:   a.StartX,
+			StartY:   a.StartY,
+			EndX:     a.EndX,
+			EndY:     a.EndY,
+			Language: Language(a.Language),
+		})
 	}
 	response := Document{
 		Id:        foundDocument.Id,
@@ -44,16 +53,25 @@ func (c *Channel) GetDocuments() GetDocumentsResponse {
 	for _, d := range documents {
 		jsonAreas := make([]Area, 0)
 		for _, a := range d.Areas {
-			jsonAreas = append(jsonAreas, Area(a))
+			jsonAreas = append(jsonAreas, Area{
+				Id:       a.Id,
+				Name:     a.Name,
+				StartX:   a.StartX,
+				StartY:   a.StartY,
+				EndX:     a.EndX,
+				EndY:     a.EndY,
+				Language: Language(a.Language),
+			})
 		}
 
 		jsonDocument := Document{
-			Id:        d.Id,
-			GroupId:   d.GroupId,
-			Name:      d.Name,
-			Path:      d.Path,
-			ProjectId: d.ProjectId,
-			Areas:     jsonAreas,
+			Id:              d.Id,
+			GroupId:         d.GroupId,
+			Name:            d.Name,
+			Path:            d.Path,
+			ProjectId:       d.ProjectId,
+			Areas:           jsonAreas,
+			DefaultLanguage: Language(d.DefaultLanguage),
 		}
 		response.Documents = append(response.Documents, jsonDocument)
 	}
@@ -176,15 +194,20 @@ func (c *Channel) RequestAddArea(documentId string, area Area) Area {
 	}
 
 	newArea := document.Area{
-		Id:     id,
-		Name:   area.Name,
-		StartX: area.StartX,
-		EndX:   area.EndX,
-		StartY: area.StartY,
-		EndY:   area.EndY,
+		Id:       id,
+		Name:     area.Name,
+		StartX:   area.StartX,
+		EndX:     area.EndX,
+		StartY:   area.StartY,
+		EndY:     area.EndY,
+		Language: app.Language(area.Language),
 	}
 	foundDocument.AddArea(newArea)
-	return Area(newArea)
+
+	responseArea := area
+	responseArea.Id = id
+
+	return responseArea
 }
 
 func (c *Channel) RequestUpdateArea(updatedArea Area) Area {
@@ -206,11 +229,41 @@ func (c *Channel) RequestUpdateArea(updatedArea Area) Area {
 	}
 
 	return Area{
-		Id:     updatedArea.Id,
-		Name:   updatedArea.Name,
-		StartX: updatedArea.StartX,
-		StartY: updatedArea.StartY,
-		EndX:   updatedArea.EndX,
-		EndY:   updatedArea.EndY,
+		Id:       areaToUpdate.Id,
+		Name:     areaToUpdate.Name,
+		StartX:   areaToUpdate.StartX,
+		StartY:   areaToUpdate.StartY,
+		EndX:     areaToUpdate.EndX,
+		EndY:     areaToUpdate.EndY,
+		Language: Language(areaToUpdate.Language),
 	}
 }
+
+func (c *Channel) RequestUpdateDocument(updatedDocument Document) Document {
+	documentToUpdate := document.GetDocumentCollection().GetDocumentById(updatedDocument.Id)
+
+	if documentToUpdate == nil {
+		return Document{}
+	}
+
+	if updatedDocument.Id != "" {
+		documentToUpdate.Id = updatedDocument.Id
+	}
+	if updatedDocument.Name != "" {
+		documentToUpdate.Name = updatedDocument.Name
+	}
+	if updatedDocument.GroupId != "" {
+		documentToUpdate.GroupId = updatedDocument.GroupId
+	}
+	if updatedDocument.Path != "" {
+		documentToUpdate.Path = updatedDocument.Path
+	}
+	if updatedDocument.DefaultLanguage.DisplayName != "" {
+		documentToUpdate.DefaultLanguage = app.Language(updatedDocument.DefaultLanguage)
+	}
+
+	fmt.Println("updated doc")
+	fmt.Println(document.GetDocumentCollection().GetDocumentById(updatedDocument.Id))
+
+	return updatedDocument
+}
diff --git a/ipc/JsonEntities.go b/ipc/JsonEntities.go
index 64401b5..ab6dc10 100644
--- a/ipc/JsonEntities.go
+++ b/ipc/JsonEntities.go
@@ -1,12 +1,13 @@
 package ipc
 
 type Document struct {
-	Id        string `json:"id"`
-	GroupId   string `json:"groupId"`
-	Name      string `json:"name"`
-	Path      string `json:"path"`
-	ProjectId string `json:"projectId"`
-	Areas     []Area `json:"areas"`
+	Id              string   `json:"id"`
+	GroupId         string   `json:"groupId"`
+	Name            string   `json:"name"`
+	Path            string   `json:"path"`
+	ProjectId       string   `json:"projectId"`
+	Areas           []Area   `json:"areas"`
+	DefaultLanguage Language `json:"defaultLanguage"`
 }
 
 type DocumentCollection struct {
@@ -28,12 +29,13 @@ type GroupCollection struct {
 }
 
 type Area struct {
-	Id     string `json:"id"`
-	Name   string `json:"name"`
-	StartX int    `json:"startX"`
-	StartY int    `json:"startY"`
-	EndX   int    `json:"endX"`
-	EndY   int    `json:"endY"`
+	Id       string   `json:"id"`
+	Name     string   `json:"name"`
+	StartX   int      `json:"startX"`
+	StartY   int      `json:"startY"`
+	EndX     int      `json:"endX"`
+	EndY     int      `json:"endY"`
+	Language Language `json:"language"`
 }
 
 type ProcessedBoundingBox struct {
@@ -97,8 +99,16 @@ type Organization struct {
 }
 
 type Project struct {
-	Id   string `json:"id"`
-	Name string `json:"name"`
+	Id             string          `json:"id"`
+	OrganizationId string          `json:"organizationId"`
+	Name           string          `json:"name"`
+	Settings       ProjectSettings `json:"settings"`
+}
+
+type ProjectSettings struct {
+	DefaultProcessLanguage         Language `json:"defaultProcessLanguage"`
+	DefaultTranslateTargetLanguage Language `json:"defaultTranslateTargetLanguage"`
+	IsHosted                       bool     `json:"IsHosted"`
 }
 
 type Session struct {
@@ -106,3 +116,9 @@ type Session struct {
 	Organization Organization `json:"organization"`
 	User         User         `json:"user"`
 }
+
+type Language struct {
+	DisplayName   string `json:"displayName"`
+	ProcessCode   string `json:"processCode"`
+	TranslateCode string `json:"translateCode"`
+}
diff --git a/ipc/Session.go b/ipc/Session.go
index 85df0e7..c9d40d5 100644
--- a/ipc/Session.go
+++ b/ipc/Session.go
@@ -17,8 +17,22 @@ func (c *Channel) GetCurrentSession() Session {
 		sessionUsers = append(sessionUsers, User(u))
 	}
 
+	currentProject := currentSession.Project
+	currentDefaultProcessLanguage := Language(currentProject.Settings.DefaultProcessLanguage)
+	currentDefaultTranslateTargetLanguage := Language(currentProject.Settings.DefaultTranslateTargetLanguage)
+	project := Project{
+		Id:             currentProject.Id,
+		Name:           currentProject.Name,
+		OrganizationId: currentProject.OrganizationId,
+		Settings: ProjectSettings{
+			DefaultProcessLanguage:         currentDefaultProcessLanguage,
+			DefaultTranslateTargetLanguage: currentDefaultTranslateTargetLanguage,
+			IsHosted:                       currentProject.Settings.IsHosted,
+		},
+	}
+
 	return Session{
-		Project: Project(currentSession.Project),
+		Project: Project(project),
 		User:    User(currentSession.User),
 		Organization: Organization{
 			Id:       currentSession.Organization.Id,
@@ -33,8 +47,9 @@ func (c *Channel) CreateNewProject(name string) Session {
 	currentSession := session.GetInstance()
 
 	currentSession.Project = session.Project{
-		Id:   uuid.NewString(),
-		Name: name,
+		Id:             uuid.NewString(),
+		OrganizationId: currentSession.Project.OrganizationId,
+		Name:           name,
 	}
 
 	return c.GetCurrentSession()
@@ -86,3 +101,15 @@ func (c *Channel) RequestChooseUserAvatar() string {
 		return filePath
 	}
 }
+
+func (c *Channel) GetSuppportedLanguages() []Language {
+	supportedLanguages := app.GetSuppportedLanguages()
+
+	var response []Language
+
+	for _, l := range supportedLanguages {
+		response = append(response, Language(l))
+	}
+
+	return response
+}