Makes Display Configurable

This patch adds configuration for the displayed texts and colors.

assets/index.js

@@ -1,18 +1,28 @@
-const myInterval = setInterval(myTimer, 2000);
+var config = null;
 
-function myTimer() {
+/**
+ * Load configuration and initialize timer
+ */
+fetch('/config')
+.then(response => response.json())
+.then(cfg => {
+	config = cfg;
+	console.info('config', config)
+	setInterval(updateTimer, 2000);
+})
+
+/**
+ * Check for capture agent status
+ */
+function updateTimer() {
 	fetch('/status')
 	.then(response => response.json())
 	.then(capturing => {
-		console.info(capturing)
-		document.getElementById('text').innerText = capturing ? 'Aufzeichnung läuft' : 'Keine Aufzeichnung';
+		console.debug('capturing', capturing)
+		const active = capturing ? config.capturing : config.idle;
+		document.getElementById('text').innerText = active.text;
 		const body = document.getElementsByTagName('body')[0];
-		if (capturing) {
-			body.style.backgroundColor = '#ac0634';
-			body.style.color = '#fff';
-		} else {
-			body.style.backgroundColor = '#fff';
-			body.style.color = '#000';
-		}
+		body.style.backgroundColor = active.background;
+		body.style.color = active.color;
 	})
 }

main.go

@@ -39,6 +39,12 @@ type AgentStateResult struct {
 	} `json:"agent-state-update"`
 }
 
+type DisplayConfig struct {
+	Text       string `json:"text"`
+	Color      string `json:"color"`
+	Background string `json:"background"`
+}
+
 type Config struct {
 	Opencast struct {
 		Url      string
@@ -47,6 +53,11 @@ type Config struct {
 		Agent    string
 	}
 
+	Display struct {
+		Capturing DisplayConfig `json:"capturing"`
+		Idle      DisplayConfig `json:"idle"`
+	}
+
 	Listen string
 }
 
@@ -95,6 +106,11 @@ func setupRouter() *gin.Engine {
 	assets, _ := fs.Sub(res, "assets")
 	r.StaticFS("/assets", http.FS(assets))
 
+	// Display Config
+	r.GET("/config", func(c *gin.Context) {
+		c.JSON(http.StatusOK, config.Display)
+	})
+
 	// Status
 	r.GET("/status", func(c *gin.Context) {
 		client := &http.Client{}

opencast-ca-display.yml

@@ -9,5 +9,16 @@ opencast:
   # Capture agent to show the status for
   agent: test
 
+# display configuration
+display:
+  capturing:
+    text: Aufzeichnung läuft
+    color: white
+    background: '#ac0634'
+  idle:
+    text: Keine Aufzeichnung
+    color: black
+    background: white
+
 # IP address and port to bind to
 listen: 127.0.0.1:8080