Expose public/ API as submodule (#23345)

* model -> public/model

* plugin -> public/plugin

* public/model/utils -> public/utils

* platform/shared/mlog -> public/shared/mlog

* platform/shared/i18n -> public/shared/i18n

* platform/shared/markdown -> public/shared/markdown

* platform/services/timezones -> public/shared/timezones

* channels/einterfaces -> einterfaces

* expose public/ submodule

* go mod tidy

* .github: cache-dependency-path, setup-go-work

* modules-tidy for public/ too

* remove old gomodtidy

server/public/model/oauth_test.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestOAuthAppPreSave(t *testing.T) {
+	a1 := OAuthApp{}
+	a1.Id = NewId()
+	a1.Name = "TestOAuthApp" + NewId()
+	a1.CallbackUrls = []string{"https://nowhere.com"}
+	a1.Homepage = "https://nowhere.com"
+	a1.IconURL = "https://nowhere.com/icon_image.png"
+	a1.ClientSecret = NewId()
+	a1.PreSave()
+	a1.Etag()
+	a1.Sanitize()
+}
+
+func TestOAuthAppPreUpdate(t *testing.T) {
+	a1 := OAuthApp{}
+	a1.Id = NewId()
+	a1.Name = "TestOAuthApp" + NewId()
+	a1.CallbackUrls = []string{"https://nowhere.com"}
+	a1.Homepage = "https://nowhere.com"
+	a1.IconURL = "https://nowhere.com/icon_image.png"
+	a1.ClientSecret = NewId()
+	a1.PreUpdate()
+}
+
+func TestOAuthAppIsValid(t *testing.T) {
+	app := OAuthApp{}
+
+	require.NotNil(t, app.IsValid())
+
+	app.Id = NewId()
+	require.NotNil(t, app.IsValid())
+
+	app.CreateAt = 1
+	require.NotNil(t, app.IsValid())
+
+	app.UpdateAt = 1
+	require.NotNil(t, app.IsValid())
+
+	app.CreatorId = NewId()
+	require.NotNil(t, app.IsValid())
+
+	app.ClientSecret = NewId()
+	require.NotNil(t, app.IsValid())
+
+	app.Name = "TestOAuthApp"
+	require.NotNil(t, app.IsValid())
+
+	app.CallbackUrls = []string{"https://nowhere.com"}
+	require.NotNil(t, app.IsValid())
+
+	app.MattermostAppID = "Some app ID"
+	require.NotNil(t, app.IsValid())
+
+	app.Homepage = "https://nowhere.com"
+	require.Nil(t, app.IsValid())
+
+	app.IconURL = "https://nowhere.com/icon_image.png"
+	require.Nil(t, app.IsValid())
+}