feat: introduce YAML configuration

pkg/config/config.go

@@ -0,0 +1,38 @@
+package config
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	Rcond RcondConfig `yaml:"rcond"`
+}
+
+type RcondConfig struct {
+	Addr     string `yaml:"addr"`
+	ApiToken string `yaml:"api_token"`
+}
+
+func LoadConfig(path string) (*Config, error) {
+	yamlFile, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	var config Config
+	err = yaml.Unmarshal(yamlFile, &config)
+	if err != nil {
+		return nil, err
+	}
+	return &config, nil
+}
+
+func SaveConfig(path string, config *Config) error {
+	yamlFile, err := yaml.Marshal(config)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(path, yamlFile, 0644)
+}

pkg/http/server.go

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/0x1d/rcond/pkg/config"
 	"github.com/gorilla/mux"
 )
 
@@ -15,11 +16,15 @@ type Server struct {
 	apiToken string
 }
 
-func NewServer(addr string, apiToken string) *Server {
+func NewServer(cfg *config.Config) *Server {
+	if cfg.Rcond.Addr == "" || cfg.Rcond.ApiToken == "" {
+		panic("addr or api_token is not set")
+	}
+
 	router := mux.NewRouter()
 
 	srv := &http.Server{
-		Addr:         addr,
+		Addr:         cfg.Rcond.Addr,
 		Handler:      router,
 		ReadTimeout:  15 * time.Second,
 		WriteTimeout: 15 * time.Second,
@@ -28,7 +33,7 @@ func NewServer(addr string, apiToken string) *Server {
 	return &Server{
 		router:   router,
 		srv:      srv,
-		apiToken: apiToken,
+		apiToken: cfg.Rcond.ApiToken,
 	}
 }