package config

internal/config/config.go

@@ -0,0 +1,58 @@
+package config
+
+import (
+	"time"
+)
+
+type Config struct {
+	Server ServerConfig `yaml:"server"`
+	Auth   AuthConfig   `yaml:"auth"`
+	TLS    TLSConfig    `yaml:"tls"`
+}
+
+type ServerConfig struct {
+	BindAddress  string        `yaml:"bind_address"`
+	ReadTimeout  time.Duration `yaml:"read_timeout"`
+	WriteTimeout time.Duration `yaml:"write_timeout"`
+}
+
+type AuthConfig struct {
+	Mode  string `yaml:"mode"`
+	Token string `yaml:"token,omitempty"`
+}
+
+type TLSConfig struct {
+	Enabled  bool   `yaml:"enabled"`
+	CertFile string `yaml:"cert_file"`
+	KeyFile  string `yaml:"key_file"`
+}
+
+type ConfigLoader interface {
+	LoadConfig() (*Config, error)
+}
+
+func DefaultConfig() *Config {
+	return &Config{
+		Server: ServerConfig{
+			BindAddress:  ":8080",
+			ReadTimeout:  15 * time.Second,
+			WriteTimeout: 15 * time.Second,
+		},
+		Auth: AuthConfig{
+			Mode: "none",
+		},
+		TLS: TLSConfig{
+			Enabled: false,
+		},
+	}
+}
+
+func (c Config) applyDefaults() *Config {
+	if c.Server.BindAddress == "" {
+		c.Server.BindAddress = ":8080"
+	}
+	if c.Auth.Mode == "" {
+		c.Auth.Mode = "none"
+	}
+	return &c
+}

internal/config/yamlloader.go

@@ -0,0 +1,29 @@
+package config
+
+import (
+	"fmt"
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type YamlConfigLoader struct {
+	FilePath string
+}
+
+func (l *YamlConfigLoader) LoadConfig() (*Config, error) {
+	data, err := os.ReadFile(l.FilePath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return DefaultConfig(), nil
+		}
+		return nil, fmt.Errorf("reading config file: %w", err)
+	}
+
+	var cfg Config
+	if err := yaml.Unmarshal(data, &cfg); err != nil {
+		return nil, fmt.Errorf("parsing config file: %w", err)
+	}
+
+	return cfg.applyDefaults(), nil
+}