PLT-7709 Add UI settings to plugin manifest (#7794)

* Add UI settings to plugin manifest

* Add another test case

* Add options field to setting

* Updates per feedback

* Report diagnostics on if plugins have settings set

* Add regenerate_help_text field

model/manifest_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
 package model
 
 import (
@@ -64,6 +67,25 @@ func TestManifestUnmarshal(t *testing.T) {
 		Webapp: &ManifestWebapp{
 			BundlePath: "thebundlepath",
 		},
+		SettingsSchema: &PluginSettingsSchema{
+			Header: "theheadertext",
+			Footer: "thefootertext",
+			Settings: map[string]*PluginSetting{
+				"thesetting": &PluginSetting{
+					DisplayName:        "thedisplayname",
+					Type:               PLUGIN_CONFIG_TYPE_DROPDOWN,
+					HelpText:           "thehelptext",
+					RegenerateHelpText: "theregeneratehelptext",
+					Options: []*PluginOption{
+						&PluginOption{
+							DisplayName: "theoptiondisplayname",
+							Value:       "thevalue",
+						},
+					},
+					Default: "thedefault",
+				},
+			},
+		},
 	}
 
 	var yamlResult Manifest
@@ -73,6 +95,19 @@ backend:
     executable: theexecutable
 webapp:
     bundle_path: thebundlepath
+settings_schema:
+    header: theheadertext
+    footer: thefootertext
+    settings:
+        thesetting:
+            display_name: thedisplayname
+            type: dropdown
+            help_text: thehelptext
+            regenerate_help_text: theregeneratehelptext
+            options:
+                - display_name: theoptiondisplayname
+                  value: thevalue
+            default: thedefault
 `), &yamlResult))
 	assert.Equal(t, expected, yamlResult)
 
@@ -84,7 +119,26 @@ webapp:
 	},
 	"webapp": {
 		"bundle_path": "thebundlepath"
-	}
+	},
+    "settings_schema": {
+        "header": "theheadertext",
+        "footer": "thefootertext",
+        "settings": {
+            "thesetting": {
+                "display_name": "thedisplayname",
+                "type": "dropdown",
+                "help_text": "thehelptext",
+                "regenerate_help_text": "theregeneratehelptext",
+                "options": [
+                    {
+                        "display_name": "theoptiondisplayname",
+                        "value": "thevalue"
+                    }
+                ],
+                "default": "thedefault"
+            }
+        }
+    }
 	}`), &jsonResult))
 	assert.Equal(t, expected, jsonResult)
 }
@@ -115,6 +169,25 @@ func TestManifestJson(t *testing.T) {
 		Webapp: &ManifestWebapp{
 			BundlePath: "thebundlepath",
 		},
+		SettingsSchema: &PluginSettingsSchema{
+			Header: "theheadertext",
+			Footer: "thefootertext",
+			Settings: map[string]*PluginSetting{
+				"thesetting": &PluginSetting{
+					DisplayName:        "thedisplayname",
+					Type:               PLUGIN_CONFIG_TYPE_DROPDOWN,
+					HelpText:           "thehelptext",
+					RegenerateHelpText: "theregeneratehelptext",
+					Options: []*PluginOption{
+						&PluginOption{
+							DisplayName: "theoptiondisplayname",
+							Value:       "thevalue",
+						},
+					},
+					Default: "thedefault",
+				},
+			},
+		},
 	}
 
 	json := manifest.ToJson()
@@ -159,6 +232,25 @@ func TestManifestClientManifest(t *testing.T) {
 		Webapp: &ManifestWebapp{
 			BundlePath: "thebundlepath",
 		},
+		SettingsSchema: &PluginSettingsSchema{
+			Header: "theheadertext",
+			Footer: "thefootertext",
+			Settings: map[string]*PluginSetting{
+				"thesetting": &PluginSetting{
+					DisplayName:        "thedisplayname",
+					Type:               PLUGIN_CONFIG_TYPE_DROPDOWN,
+					HelpText:           "thehelptext",
+					RegenerateHelpText: "theregeneratehelptext",
+					Options: []*PluginOption{
+						&PluginOption{
+							DisplayName: "theoptiondisplayname",
+							Value:       "thevalue",
+						},
+					},
+					Default: "thedefault",
+				},
+			},
+		},
 	}
 
 	sanitized := manifest.ClientManifest()
@@ -166,6 +258,7 @@ func TestManifestClientManifest(t *testing.T) {
 	assert.NotEmpty(t, sanitized.Id)
 	assert.NotEmpty(t, sanitized.Version)
 	assert.NotEmpty(t, sanitized.Webapp)
+	assert.NotEmpty(t, sanitized.SettingsSchema)
 	assert.Empty(t, sanitized.Name)
 	assert.Empty(t, sanitized.Description)
 	assert.Empty(t, sanitized.Backend)
@@ -176,4 +269,5 @@ func TestManifestClientManifest(t *testing.T) {
 	assert.NotEmpty(t, manifest.Name)
 	assert.NotEmpty(t, manifest.Description)
 	assert.NotEmpty(t, manifest.Backend)
+	assert.NotEmpty(t, manifest.SettingsSchema)
 }