From ec727efc1373112f7603bd516bba0717c2602842 Mon Sep 17 00:00:00 2001
From: Thomas Klaehn <thomas.klaehn@perinet.io>
Date: Thu, 11 Sep 2025 08:42:57 +0200
Subject: [PATCH] Add camera control

Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>
---
 src/internal/apiservice/camera/camera.go   | 98 ++++++++++++++++++++++
 src/internal/apiservice/printer/printer.go | 54 ++++++------
 src/main.go                                |  4 +-
 webui/index.html                           | 24 ++++--
 4 files changed, 142 insertions(+), 38 deletions(-)
 create mode 100644 src/internal/apiservice/camera/camera.go

diff --git a/src/internal/apiservice/camera/camera.go b/src/internal/apiservice/camera/camera.go
new file mode 100644
index 0000000..fa8245d
--- /dev/null
+++ b/src/internal/apiservice/camera/camera.go
@@ -0,0 +1,98 @@
+package apiservice_camera
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	apiservice_relay "powerswitch/internal/apiservice/relay"
+)
+
+type state string
+
+type State struct {
+	State state `json:"state"`
+}
+
+const (
+	StateOn  state = "on"
+	StateOff state = "off"
+	id       int   = 2
+)
+
+var (
+	logger log.Logger = *log.Default()
+)
+
+func init() {
+	logger.SetFlags(log.Llongfile | log.Ltime)
+}
+
+func AddHandler() {
+	http.HandleFunc("GET /camera/state", handle_get_powerstate)
+	http.HandleFunc("PATCH /camera/state", handle_patch_powerstate)
+}
+
+func GetState() (bool, error) {
+	res, err := apiservice_relay.GetRelay(id)
+	return !res, err
+}
+
+func SetState(state bool) error {
+	return apiservice_relay.SetRelay(id, !state)
+}
+
+func handle_get_powerstate(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-type", "application/json; charset=utf-8;")
+	state, err := apiservice_relay.GetRelay(id)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
+	var res State
+	if state {
+		res.State = StateOff
+	} else {
+		res.State = StateOn
+	}
+	tmp, err := json.Marshal(res)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
+	w.WriteHeader(http.StatusOK)
+	w.Write(tmp)
+}
+
+func handle_patch_powerstate(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-type", "application/json; charset=utf-8;")
+
+	tmp, err := io.ReadAll(r.Body)
+	if err != nil {
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+	var state State
+	err = json.Unmarshal(tmp, &state)
+	if err != nil {
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	set_state := true
+	if state.State == StateOn {
+		set_state = false
+	}
+	err = apiservice_relay.SetRelay(id, set_state)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
+	w.WriteHeader(http.StatusOK)
+}
diff --git a/src/internal/apiservice/printer/printer.go b/src/internal/apiservice/printer/printer.go
index 859a16e..483aea6 100644
--- a/src/internal/apiservice/printer/printer.go
+++ b/src/internal/apiservice/printer/printer.go
@@ -6,6 +6,7 @@ import (
 	"io"
 	"log"
 	"net/http"
+	apiservice_camera "powerswitch/internal/apiservice/camera"
 	apiservice_data "powerswitch/internal/apiservice/data"
 	apiservice_power "powerswitch/internal/apiservice/power"
 	"powerswitch/internal/app/process/octoprint"
@@ -85,21 +86,32 @@ func handle_patch_printerstate(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	new_state := false
+	if state.State == StateOn {
+		new_state = true
+	}
+	err = apiservice_data.SetState(new_state)
+	if err != nil {
+		logger.Print(err)
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
+	err = apiservice_power.SetState(new_state)
+	if err != nil {
+		logger.Print(err)
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
+	err = apiservice_camera.SetState(new_state)
+	if err != nil {
+		logger.Print(err)
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
+		return
+	}
 	if state.State == StateOn {
-		err := apiservice_data.SetState(true)
-		if err != nil {
-			logger.Print(err)
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
-			return
-		}
-		err = apiservice_power.SetState(true)
-		if err != nil {
-			logger.Print(err)
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
-			return
-		}
 		err = octoprint.ReStart()
 		if err != nil {
 			logger.Print(err)
@@ -115,20 +127,6 @@ func handle_patch_printerstate(w http.ResponseWriter, r *http.Request) {
 			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
 			return
 		}
-		err = apiservice_power.SetState(false)
-		if err != nil {
-			logger.Print(err)
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
-			return
-		}
-		err = apiservice_data.SetState(false)
-		if err != nil {
-			logger.Print(err)
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write(json.RawMessage(fmt.Sprintf(`{"error": "%s"}`, err.Error())))
-			return
-		}
 	}
 	w.WriteHeader(http.StatusOK)
 }
diff --git a/src/main.go b/src/main.go
index 2994cc5..2dd1b15 100644
--- a/src/main.go
+++ b/src/main.go
@@ -5,6 +5,7 @@ import (
 	"log"
 	"net/http"
 
+	apiservice_camera "powerswitch/internal/apiservice/camera"
 	apiservice_data "powerswitch/internal/apiservice/data"
 	apiservice_power "powerswitch/internal/apiservice/power"
 	apiservice_printer "powerswitch/internal/apiservice/printer"
@@ -29,12 +30,13 @@ func main() {
 
 	host.Init()
 
+	apiservice_camera.AddHandler()
 	apiservice_data.AddHandler()
 	apiservice_power.AddHandler()
 	apiservice_printer.AddHandler()
 	apiservice_relay.AddHandler()
 
-	port := ":80"
+	port := ":8083"
 	http.Handle("/", http.FileServer(http.Dir(webui_path)))
 	logger.Fatal(http.ListenAndServe(port, nil))
 }
diff --git a/webui/index.html b/webui/index.html
index 0d5a19a..e034634 100644
--- a/webui/index.html
+++ b/webui/index.html
@@ -7,17 +7,20 @@
         <script type="text/javaScript">
             const POWER_STATE_URL = "/power/state";
             const DATA_STATE_URL = "/data/state";
+            const CAMERA_STATE_URL = "/camera/state";
             const PRINTER_STATE_URL = "/printer/state";
             function init() {
                 get_state(PRINTER_STATE_URL, "printer_slider");
                 get_state(POWER_STATE_URL, "power_slider");
                 get_state(DATA_STATE_URL, "data_slider");
+                get_state(CAMERA_STATE_URL, "camera_slider");
                 setInterval(poll, 1000);
             }
             function poll() {
                 get_state(PRINTER_STATE_URL, "printer_slider");
                 get_state(POWER_STATE_URL, "power_slider");
                 get_state(DATA_STATE_URL, "data_slider");
+                get_state(CAMERA_STATE_URL, "camera_slider");
             }
             function get_state(url, target) {
                 const xhr = new XMLHttpRequest();
@@ -64,20 +67,14 @@
                     url = POWER_STATE_URL;
                 } else if(name === "data") {
                     url = DATA_STATE_URL;
-                } else if(name === "printer") {
+                } else if(name === "camera") {
+                    url = CAMERA_STATE_URL;
+                }else if(name === "printer") {
                     url = PRINTER_STATE_URL;
                 }
                 const xhr = new XMLHttpRequest();
                 xhr.open("PATCH", url);
                 xhr.setRequestHeader("Content-type", "application/json; charset=utf-8");
-                // xhr.onload = () => {
-                //     var data = JSON.parse(xhr.responseText);
-                //     if (xhr.readyState == 4 && xhr.status == "202") {
-                //         console.log(data);
-                //     } else {
-                //         console.log(`Error: ${xhr.status}`);
-                //     }
-                // };
                 xhr.send(obj);
             }
         </script>
@@ -124,6 +121,15 @@
                             </label>
                         </td>
                     </tr>
+                    <tr>
+                        <td>Kamera:</td>
+                        <td>
+                            <label class="switch">
+                                <input id="camera_slider" type="checkbox" onchange="check(this, 'camera')">
+                                <span class="slider round"></span>
+                            </label>
+                        </td>
+                    </tr>
                 </table>
             </div>
             <div id="containerdiv">