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

2 files changed, 131 insertions, 8 deletions

diff --git a/model/manifest.go b/model/manifest.go
index 4352a2bd2..501153982 100644
--- a/model/manifest.go
+++ b/model/manifest.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
 package model
@@ -13,13 +13,42 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
+const (
+	PLUGIN_CONFIG_TYPE_TEXT      = "text"
+	PLUGIN_CONFIG_TYPE_BOOL      = "bool"
+	PLUGIN_CONFIG_TYPE_RADIO     = "radio"
+	PLUGIN_CONFIG_TYPE_DROPDOWN  = "dropdown"
+	PLUGIN_CONFIG_TYPE_GENERATED = "generated"
+)
+
+type PluginOption struct {
+	DisplayName string `json:"display_name" yaml:"display_name"`
+	Value       string `json:"value" yaml:"value"`
+}
+
+type PluginSetting struct {
+	DisplayName        string          `json:"display_name" yaml:"display_name"`
+	Type               string          `json:"type" yaml:"type"`
+	HelpText           string          `json:"help_text" yaml:"help_text"`
+	RegenerateHelpText string          `json:"regenerate_help_text,omitempty" yaml:"regenerate_help_text,omitempty"`
+	Default            interface{}     `json:"default" yaml:"default"`
+	Options            []*PluginOption `json:"options,omitempty" yaml:"options,omitempty"`
+}
+
+type PluginSettingsSchema struct {
+	Header   string                    `json:"header" yaml:"header"`
+	Footer   string                    `json:"footer" yaml:"footer"`
+	Settings map[string]*PluginSetting `json:"settings" yaml:"settings"`
+}
+
 type Manifest struct {
-	Id          string           `json:"id" yaml:"id"`
-	Name        string           `json:"name,omitempty" yaml:"name,omitempty"`
-	Description string           `json:"description,omitempty" yaml:"description,omitempty"`
-	Version     string           `json:"version" yaml:"version"`
-	Backend     *ManifestBackend `json:"backend,omitempty" yaml:"backend,omitempty"`
-	Webapp      *ManifestWebapp  `json:"webapp,omitempty" yaml:"webapp,omitempty"`
+	Id             string                `json:"id" yaml:"id"`
+	Name           string                `json:"name,omitempty" yaml:"name,omitempty"`
+	Description    string                `json:"description,omitempty" yaml:"description,omitempty"`
+	Version        string                `json:"version" yaml:"version"`
+	Backend        *ManifestBackend      `json:"backend,omitempty" yaml:"backend,omitempty"`
+	Webapp         *ManifestWebapp       `json:"webapp,omitempty" yaml:"webapp,omitempty"`
+	SettingsSchema *PluginSettingsSchema `json:"settings_schema,omitempty" yaml:"settings_schema,omitempty"`
 }
 
 type ManifestBackend struct {
diff --git a/model/manifest_test.go b/model/manifest_test.go
index 1ec43a217..3f174d3a7 100644
--- a/model/manifest_test.go
+++ b/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)
 }