PLT-7622 Improvements to server handling of webapp plugins (#7445)

* Improvements to server handling of webapp plugins

* Fix newline

* Update manifest function names

4 files changed, 77 insertions, 2 deletions

diff --git a/model/client4.go b/model/client4.go
index c06975697..44c4cf6c9 100644
--- a/model/client4.go
+++ b/model/client4.go
@@ -3088,3 +3088,14 @@ func (c *Client4) RemovePlugin(id string) (bool, *Response) {
 		return CheckStatusOK(r), BuildResponse(r)
 	}
 }
+
+// GetWebappPlugins will return a list of plugins that the webapp should download.
+// WARNING: PLUGINS ARE STILL EXPERIMENTAL. THIS FUNCTION IS SUBJECT TO CHANGE.
+func (c *Client4) GetWebappPlugins() ([]*Manifest, *Response) {
+	if r, err := c.DoApiGet(c.GetPluginsRoute()+"/webapp", ""); err != nil {
+		return nil, BuildErrorResponse(r, err)
+	} else {
+		defer closeBody(r)
+		return ManifestListFromJson(r.Body), BuildResponse(r)
+	}
+}
diff --git a/model/manifest.go b/model/manifest.go
index e61ccc8ad..b466660af 100644
--- a/model/manifest.go
+++ b/model/manifest.go
@@ -12,8 +12,9 @@ import (
 
 type Manifest struct {
 	Id          string           `json:"id" yaml:"id"`
-	Name        string           `json:"name" yaml:"name"`
-	Description string           `json:"description" yaml:"description"`
+	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"`
 }
@@ -66,6 +67,19 @@ func ManifestListFromJson(data io.Reader) []*Manifest {
 	}
 }
 
+func (m *Manifest) HasClient() bool {
+	return m.Webapp != nil
+}
+
+func (m *Manifest) ClientManifest() *Manifest {
+	cm := new(Manifest)
+	*cm = *m
+	cm.Name = ""
+	cm.Description = ""
+	cm.Backend = nil
+	return cm
+}
+
 // FindManifest will find and parse the manifest in a given directory.
 //
 // In all cases other than a does-not-exist error, path is set to the path of the manifest file that was
diff --git a/model/manifest_test.go b/model/manifest_test.go
index 46975cf47..1ec43a217 100644
--- a/model/manifest_test.go
+++ b/model/manifest_test.go
@@ -129,3 +129,51 @@ func TestManifestJson(t *testing.T) {
 	assert.Equal(t, newManifestList, manifestList)
 	assert.Equal(t, ManifestListToJson(newManifestList), json)
 }
+
+func TestManifestHasClient(t *testing.T) {
+	manifest := &Manifest{
+		Id: "theid",
+		Backend: &ManifestBackend{
+			Executable: "theexecutable",
+		},
+		Webapp: &ManifestWebapp{
+			BundlePath: "thebundlepath",
+		},
+	}
+
+	assert.True(t, manifest.HasClient())
+
+	manifest.Webapp = nil
+	assert.False(t, manifest.HasClient())
+}
+
+func TestManifestClientManifest(t *testing.T) {
+	manifest := &Manifest{
+		Id:          "theid",
+		Name:        "thename",
+		Description: "thedescription",
+		Version:     "0.0.1",
+		Backend: &ManifestBackend{
+			Executable: "theexecutable",
+		},
+		Webapp: &ManifestWebapp{
+			BundlePath: "thebundlepath",
+		},
+	}
+
+	sanitized := manifest.ClientManifest()
+
+	assert.NotEmpty(t, sanitized.Id)
+	assert.NotEmpty(t, sanitized.Version)
+	assert.NotEmpty(t, sanitized.Webapp)
+	assert.Empty(t, sanitized.Name)
+	assert.Empty(t, sanitized.Description)
+	assert.Empty(t, sanitized.Backend)
+
+	assert.NotEmpty(t, manifest.Id)
+	assert.NotEmpty(t, manifest.Version)
+	assert.NotEmpty(t, manifest.Webapp)
+	assert.NotEmpty(t, manifest.Name)
+	assert.NotEmpty(t, manifest.Description)
+	assert.NotEmpty(t, manifest.Backend)
+}
diff --git a/model/websocket_message.go b/model/websocket_message.go
index 6b8c03427..6c55da6f0 100644
--- a/model/websocket_message.go
+++ b/model/websocket_message.go
@@ -39,6 +39,8 @@ const (
 	WEBSOCKET_EVENT_RESPONSE            = "response"
 	WEBSOCKET_EVENT_EMOJI_ADDED         = "emoji_added"
 	WEBSOCKET_EVENT_CHANNEL_VIEWED      = "channel_viewed"
+	WEBSOCKET_EVENT_PLUGIN_ACTIVATED    = "plugin_activated"   // EXPERIMENTAL - SUBJECT TO CHANGE
+	WEBSOCKET_EVENT_PLUGIN_DEACTIVATED  = "plugin_deactivated" // EXPERIMENTAL - SUBJECT TO CHANGE
 )
 
 type WebSocketMessage interface {