MM-28103: prepackage incident-response (#15360)

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

model/config.go

@@ -2580,6 +2580,11 @@ func (s *PluginSettings) SetDefaults(ls LogSettings) {
 		s.PluginStates["com.mattermost.nps"] = &PluginState{Enable: ls.EnableDiagnostics == nil || *ls.EnableDiagnostics}
 	}
 
+	if s.PluginStates["com.mattermost.plugin-incident-response"] == nil {
+		// Enable the incident response plugin by default
+		s.PluginStates["com.mattermost.plugin-incident-response"] = &PluginState{Enable: true}
+	}
+
 	if s.EnableMarketplace == nil {
 		s.EnableMarketplace = NewBool(PLUGIN_SETTINGS_DEFAULT_ENABLE_MARKETPLACE)
 	}

model/config_test.go

@@ -307,6 +307,31 @@ func TestConfigDefaultNPSPluginState(t *testing.T) {
 	})
 }
 
+func TestConfigDefaultIncidentResponsePluginState(t *testing.T) {
+	t.Run("should enable IncidentResponse plugin by default", func(t *testing.T) {
+		c1 := Config{}
+		c1.SetDefaults()
+
+		assert.True(t, c1.PluginSettings.PluginStates["com.mattermost.plugin-incident-response"].Enable)
+	})
+
+	t.Run("should not re-enable IncidentResponse plugin after it has been disabled", func(t *testing.T) {
+		c1 := Config{
+			PluginSettings: PluginSettings{
+				PluginStates: map[string]*PluginState{
+					"com.mattermost.plugin-incident-response": {
+						Enable: false,
+					},
+				},
+			},
+		}
+
+		c1.SetDefaults()
+
+		assert.False(t, c1.PluginSettings.PluginStates["com.mattermost.plugin-incident-response"].Enable)
+	})
+}
+
 func TestTeamSettingsIsValidSiteNameEmpty(t *testing.T) {
 	c1 := Config{}
 	c1.SetDefaults()