feat(config)!: migrate to YAML config format and load from config.yml

BREAKING CHANGE: Configuration is now stored in `config.yml` using YAML syntax instead of `config.json`.

Author: kh4f

.gitignore

@@ -1,3 +1,3 @@
-config.json
+config.yml
 *.exe
 *.syso

README.md

@@ -30,7 +30,7 @@ Download the [latest release](https://github.com/kh4f/amdalert/releases/latest)
 ## 🕹️ Usage
 
 - Control the app via CLI (`AMDAlert.exe`).
-- Configuration is stored in `config.json` (created automatically on first run). You can edit it manually or via CLI commands.
+- Configuration is stored in `config.yaml` (created automatically on first run). You can edit it manually or via CLI commands.
 - Enabling alerts starts a background service (`AMDAlertDaemon.exe`) that checks the GPU state every 10 sec and shows notifications when needed.
 
 </br>

go.mod

@@ -2,4 +2,7 @@ module amdalert
 
 go 1.26.0
 
-require golang.org/x/sys v0.42.0
+require (
+	golang.org/x/sys v0.42.0
+	gopkg.in/yaml.v3 v3.0.1
+)

go.sum

@@ -1,2 +1,5 @@
 golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
 golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/config/config.go

@@ -1,16 +1,17 @@
 package config
 
 import (
-	"encoding/json"
 	"os"
 	"time"
+
+	"gopkg.in/yaml.v3"
 )
 
-const filePath = "config.json"
+const filePath = "config.yml"
 
 type Config struct {
-	AlertTemp       int `json:"alertTemp"`
-	FanOffAlertTemp int `json:"fanOffAlertTemp"`
+	AlertTemp       int `yaml:"alertTemp"`
+	FanOffAlertTemp int `yaml:"fanOffAlertTemp"`
 }
 
 var (
@@ -31,7 +32,7 @@ func Load() error {
 	}
 
 	loaded := Current
-	if err := json.Unmarshal(data, &loaded); err != nil {
+	if err := yaml.Unmarshal(data, &loaded); err != nil {
 		return err
 	}
 
@@ -46,7 +47,7 @@ func Load() error {
 }
 
 func Save() error {
-	data, err := json.MarshalIndent(Current, "", "  ")
+	data, err := yaml.Marshal(Current)
 	if err != nil {
 		return err
 	}