feat(config): support custom temperature limits from config.json

Implement loading and saving of `maxTemp` and `maxFanOffTemp` values from `config.json` for flexible alert configuration.

Author: kh4f

config.go

@@ -0,0 +1,29 @@
+package main
+
+import ("os"; "encoding/json")
+
+type Config struct {
+	MaxTemp     int `json:"maxTemp"`
+	MaxFanOffTemp int `json:"maxFanOffTemp"`
+}
+
+var config = Config{
+	MaxTemp:     60,
+	MaxFanOffTemp: 40,
+}
+
+const configFile = "config.json"
+
+func loadConfig() {
+	data, err := os.ReadFile(configFile)
+	if err != nil {
+		saveConfig()
+	} else {
+		json.Unmarshal(data, &config)
+	}
+}
+
+func saveConfig() {
+	data, _ := json.MarshalIndent(config, "", "  ")
+	os.WriteFile(configFile, data, 0644)
+}

main.go

@@ -6,6 +6,7 @@ var eventPtr = utf16("Global\\HotAMD")
 
 func main() {
 	initADL()
+	loadConfig()
 	if len(os.Args) > 1 && os.Args[1] == "--daemon" { runDaemon() } else { runCLI() }
 	destroyADL()
 }

monitor.go

@@ -1,6 +1,6 @@
 package main
 
-import ("unsafe"; "time"; w "golang.org/x/sys/windows")
+import ("fmt"; "unsafe"; "time"; w "golang.org/x/sys/windows")
 
 type ADLTemperature struct {
 	Size int32
@@ -57,10 +57,10 @@ func destroyADL() {
 func start() {
 	for {
 		temp, rpm := readGPU()
-		if temp > 40 && rpm == 0 {
-			alert("GPU temperature > 40°C and fan is not spinning")
-		} else if temp > 60 {
-			alert("GPU temperature > 60°C")
+		if int(temp) > config.MaxFanOffTemp && rpm == 0 {
+			alert("GPU temperature > " + fmt.Sprintf("%v", config.MaxFanOffTemp) + "°C and fan is not spinning")
+		} else if int(temp) > config.MaxTemp {
+			alert("GPU temperature > " + fmt.Sprintf("%v", config.MaxTemp) + "°C")
 		}
 		time.Sleep(10 * time.Second)
 	}