[Gekidou MM-39733] Port Create Channel from V1 (#6067)

* copy directly from v1. will get working and then convert class to functional components

* screen showing up correctly.  Need to convert lifestyle methods

* create channel button working

* save before refactor in prep for bringing in edit_channel functionality

* change function naming

* clean up lint

* clean up for PR review

* clean up for PR review

* remove hoardcoded styles

* add edit_channel screen

* add handlePatchChannel

* add custom useFormInput hook. use edit screen for both create and edit screens. edit or create screen mode determined by channel prop passed in as a channel or null

* rename edit_channel to create_or_edit_channel

* displayname, header, and purpose are now an object with value and onChange props, created from the useFormInput hook. Now only need to pass this new FormInput Prop to the edit_channel_info component and deconstruct there to get the onChange and value

* fix some lint errors

* fix some lint errors

* remove empty line

* pass intl into utils validate functions because they are not Hooks.  add validation for displayName including translations.

* Move useFormInput hook to its own hooks file and import

* simplify

* remove editing prop.  Was used to determine if the right button was enabled. It was always true for edit_channel screen and always false for create channel screen.  The enableRightButton prop call back is was also used for the same reason.

* remove channeUrl editing references.  This was not implemented on v1

* pass editing prop back into component and add back logic. When editing one field must change.  when creating, just need to check that name is provided

* lint fixes

* fix typing issue for channel types

* scrolling ref should be fixed.  Linting should pass now

* Linting should pass now

* require id field in partial Channel. fixes tsc

* remove everything related to renaming the channel URL.  This has never been requred for mobile

* manage state with useReducer so that all actions/state in one location. This also removes the number of onXXX functions and reduces the number of functions in the component

* reorganize code. useEffects are at top.  Move type and interfaces outside of function component

* Fix lint

* nit: invert if statement checking a negative

* use cneterChannelColor. in figma this is center channel text, but I verified theme color by comparing to SSO login text color

* Simple snapshot tests as a start

* Add more tests

* update snapshot

* add snapshot tests. Add tests for button enabling and disabling

* simplify test with destructuring.

* PR feedback. formatting changes. get user and teamid from one call

* remove FormInput hook and use value/setvalue convention for controlled components

* no need to setChannelDisplayName after creating/updating channel

* Just pass the setXXX function.  Don't need to create as separate callback

* modify floatingTextInput component to allow placeholder text

* remove InteractionManager. PR nits

* mv EditChannelComponent into create_or_edit screen.  Rename component from EditChannelInfo to ChannelInfoForm

* correct import path

* add IntlShape Type to function input. Wrap screen with withServerDatabase, not withIntl

* remove state setting function calls from inside the reducer.  move close function outside of the component. remove setRightButton and rightButton and place rightbutton in initial appState

* move editing const after useX oneliners and before useCallback, useEffect, and useReducers

* rightButton
  - useMemo to memoize an object with dependencies
  - move out of the appState
emitCanSaveChannel
  - wrap with useCallback
onCreateChannel
  - wrap with useCallback
onUpdateChannel
  - wrap with useCallback
useEffect Navigation
  - use the callbacks as dependencies in stead of the depencies of those
    callbacks.

* wrap all formatted message with useMemo()
wrap all onXXXChangeText with useCallback and add deps
move all oneliner derived constants directly after useState useMemo

* remove useMemo from formatted text

* switchToCHannel is still not working.  failing at
  const channel: ChannelModel = await member.channel.fetch();

* use prepareMyChannelsForTeam to update db tables for new channel

* add placeholder text color

* Attach open edit channel screen to `Set Header` button in channel intro view
port SectionItem from V1 and us to add a Switch for setting private/public channel
hook up the plus icon in the channel list header to create a channel (temporary fix to allow debugging)
add new queryChannelsInfoById and queryCurrentChannelInfo query functions
update text for create screen text inputs

* Fix styles and fix actions

* Add autocomplete, fix patch, and address design feedback

* Address feedback

* Add margin between icon and label on Make Private

* Address feedback

* Address feedback

* Address feedback and fix channel list not updating when the channel gets created

* Address feedback and directly add the channel to the default category

* Render at-mentions as Members if no channelId is set

* Display autocomplete on iOS

Co-authored-by: Jason Frerich <jason.frerich@mattermost.com>
Co-authored-by: Elias Nahum <nahumhbl@gmail.com>

app/utils/channel/index.ts

@@ -1,10 +1,14 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
+import {IntlShape} from 'react-intl';
 
-import {General, Permissions} from '@constants';
-import {DEFAULT_LOCALE} from '@i18n';
+import {Channel, General, Permissions} from '@constants';
+import {t, DEFAULT_LOCALE} from '@i18n';
 import {hasPermission} from '@utils/role';
 
+import {generateId} from '../general';
+import {cleanUpUrlable} from '../url';
+
 import type ChannelModel from '@typings/database/models/servers/channel';
 
 export function getDirectChannelName(id: string, otherId: string): string {
@@ -62,3 +66,49 @@ export function sortChannelsModelByDisplayName(locale: string, a: ChannelModel,
 
     return a.name.toLowerCase().localeCompare(b.name.toLowerCase(), locale, {numeric: true});
 }
+
+const displayNameValidationMessages = {
+    display_name_required: {
+        id: t('mobile.rename_channel.display_name_required'),
+        defaultMessage: 'Channel name is required',
+    },
+    display_name_maxLength: {
+        id: t('mobile.rename_channel.display_name_maxLength'),
+        defaultMessage: 'Channel name must be less than {maxLength, number} characters',
+    },
+    display_name_minLength: {
+        id: t('mobile.rename_channel.display_name_minLength'),
+        defaultMessage: 'Channel name must be {minLength, number} or more characters',
+    },
+};
+
+export const validateDisplayName = (intl: IntlShape, displayName: string): {error: string} => {
+    let errorMessage;
+    switch (true) {
+        case !displayName:
+            errorMessage = intl.formatMessage(displayNameValidationMessages.display_name_required);
+            break;
+        case displayName.length > Channel.MAX_CHANNEL_NAME_LENGTH:
+            errorMessage = intl.formatMessage(
+                displayNameValidationMessages.display_name_maxLength,
+                {maxLength: Channel.MAX_CHANNEL_NAME_LENGTH});
+            break;
+        case displayName.length < Channel.MIN_CHANNEL_NAME_LENGTH:
+            errorMessage = intl.formatMessage(
+                displayNameValidationMessages.display_name_minLength,
+                {minLength: Channel.MIN_CHANNEL_NAME_LENGTH});
+            break;
+
+        default:
+            errorMessage = '';
+    }
+    return {error: errorMessage};
+};
+
+export function generateChannelNameFromDisplayName(displayName: string) {
+    let name = cleanUpUrlable(displayName);
+    if (name === '') {
+        name = generateId();
+    }
+    return name;
+}

app/utils/role/index.ts

@@ -75,7 +75,8 @@ export async function canManageChannelMembers(post: PostModel, user: UserModel)
     const rolesArray = [...user.roles.split(' ')];
     const channel = await post.channel.fetch() as ChannelModel | undefined;
 
-    if (!channel || channel.deleteAt !== 0 || [General.DM_CHANNEL, General.GM_CHANNEL].includes(channel.type as any) || channel.name === General.DEFAULT_CHANNEL) {
+    const directTypes: string[] = [General.DM_CHANNEL, General.GM_CHANNEL];
+    if (!channel || channel.deleteAt !== 0 || directTypes.includes(channel.type) || channel.name === General.DEFAULT_CHANNEL) {
         return false;
     }