From 6df5b35600e6aae6e676e2ba29eeaaf88bf9ff9b Mon Sep 17 00:00:00 2001
From: xengineering <mail2xengineering@protonmail.com>
Date: Fri, 11 Jun 2021 11:40:46 +0200
Subject: Implement AJAX Call

---
 Makefile             |  1 +
 data/html/index.html |  2 ++
 data/js/birdscan.js  |  7 +++++++
 src/web.go           | 11 +++++++++++
 4 files changed, 21 insertions(+)
 create mode 100644 data/js/birdscan.js

diff --git a/Makefile b/Makefile
index 7531fdb..7e3e517 100644
--- a/Makefile
+++ b/Makefile
@@ -21,4 +21,5 @@ install: all
 	install -Dm 644 systemd/birdscan.sysusers $(DESTDIR)$(PREFIX)/lib/sysusers.d/birdscan.conf
 	install -Dm 644 data/html/index.html $(DESTDIR)$(PREFIX)/share/birdscan/html/index.html
 	install -Dm 644 data/css/birdscan.css $(DESTDIR)$(PREFIX)/share/birdscan/css/birdscan.css
+	install -Dm 644 data/js/birdscan.js $(DESTDIR)$(PREFIX)/share/birdscan/js/birdscan.js
 
diff --git a/data/html/index.html b/data/html/index.html
index af72c46..eddc2b3 100644
--- a/data/html/index.html
+++ b/data/html/index.html
@@ -25,8 +25,10 @@
 		<main>
 			<h1>birdscan</h1>
 			<p>A software to take beautiful pictures of birds with a Raspberry Pi Camera.</p>
+			<button onclick="singlePicture()">Take single picture</button>
 		</main>
 
+		<script src="./js/birdscan.js"></script>
 	</body>
 
 </html>
diff --git a/data/js/birdscan.js b/data/js/birdscan.js
new file mode 100644
index 0000000..d1bba04
--- /dev/null
+++ b/data/js/birdscan.js
@@ -0,0 +1,7 @@
+
+function singlePicture() {
+    const xhttp = new XMLHttpRequest();
+    xhttp.open("POST", "./api/single_picture");
+    xhttp.send();
+}
+
diff --git a/src/web.go b/src/web.go
index 4306b2c..23bf1ff 100644
--- a/src/web.go
+++ b/src/web.go
@@ -26,6 +26,8 @@ func runServer(cfg *webConfig) {
 
 	router.Get("/", indexHandler)
 	router.Get("/css/birdscan.css", cssHandler)
+	router.Get("/js/birdscan.js", jsHandler)
+	router.Post("/api/single_picture", singlePictureHandler)
 
 	log.Println("Binding to 'http://" + cfg.BindAddress + ":" + cfg.BindPort + "'")
 	log.Fatal(http.ListenAndServe(cfg.BindAddress + ":" + cfg.BindPort, router))
@@ -39,3 +41,12 @@ func cssHandler(w http.ResponseWriter, r *http.Request) {
 	http.ServeFile(w, r, fmt.Sprintf("%s/css/birdscan.css", APP_DATA))
 }
 
+func jsHandler(w http.ResponseWriter, r *http.Request) {
+	http.ServeFile(w, r, fmt.Sprintf("%s/js/birdscan.js", APP_DATA))
+}
+
+func singlePictureHandler(w http.ResponseWriter, r *http.Request) {
+	log.Println("Received request for a single picture")
+	fmt.Fprintf(w, http.StatusText(http.StatusOK))
+}
+
-- 
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