initial commit

internal/config/config.go

@@ -0,0 +1,134 @@
+package config
+
+import (
+	"os"
+	"strconv"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	Server   ServerConfig   `yaml:"server"`
+	Database DatabaseConfig `yaml:"database"`
+	Redis    RedisConfig    `yaml:"redis"`
+	JWT      JWTConfig      `yaml:"jwt"`
+	CORS     CORSConfig     `yaml:"cors"`
+	Logging  LoggingConfig  `yaml:"logging"`
+	Email    EmailConfig    `yaml:"email"`
+	Frontend FrontendConfig `yaml:"frontend"`
+}
+
+type ServerConfig struct {
+	Host         string `yaml:"host"`
+	Port         int    `yaml:"port"`
+	Mode         string `yaml:"mode"`
+	ReadTimeout  int    `yaml:"read_timeout"`
+	WriteTimeout int    `yaml:"write_timeout"`
+	IdleTimeout  int    `yaml:"idle_timeout"`
+}
+
+func (s *ServerConfig) Address() string {
+	return s.Host + ":" + strconv.Itoa(s.Port)
+}
+
+func (s *ServerConfig) ReadTimeoutDuration() time.Duration {
+	return time.Duration(s.ReadTimeout) * time.Second
+}
+
+func (s *ServerConfig) WriteTimeoutDuration() time.Duration {
+	return time.Duration(s.WriteTimeout) * time.Second
+}
+
+func (s *ServerConfig) IdleTimeoutDuration() time.Duration {
+	return time.Duration(s.IdleTimeout) * time.Second
+}
+
+type DatabaseConfig struct {
+	Host            string `yaml:"host"`
+	Port            int    `yaml:"port"`
+	User            string `yaml:"user"`
+	Password        string `yaml:"password"`
+	Name            string `yaml:"name"`
+	SSLMode         string `yaml:"ssl_mode"`
+	MaxOpenConns    int    `yaml:"max_open_conns"`
+	MaxIdleConns    int    `yaml:"max_idle_conns"`
+	ConnMaxLifetime int    `yaml:"conn_max_lifetime"`
+}
+
+func (d *DatabaseConfig) DSN() string {
+	return "host=" + d.Host + " port=" + strconv.Itoa(d.Port) + " user=" + d.User + " password=" + d.Password + " dbname=" + d.Name + " sslmode=" + d.SSLMode
+}
+
+type RedisConfig struct {
+	Host     string `yaml:"host"`
+	Port     int    `yaml:"port"`
+	Password string `yaml:"password"`
+	DB       int    `yaml:"db"`
+}
+
+func (r *RedisConfig) Address() string {
+	return r.Host + ":" + strconv.Itoa(r.Port)
+}
+
+type JWTConfig struct {
+	Secret           string `yaml:"secret"`
+	ExpiresIn        int    `yaml:"expires_in"`
+	RefreshExpiresIn int    `yaml:"refresh_expires_in"`
+}
+
+func (j *JWTConfig) ExpiresInDuration() time.Duration {
+	return time.Duration(j.ExpiresIn) * time.Hour
+}
+
+func (j *JWTConfig) RefreshExpiresInDuration() time.Duration {
+	return time.Duration(j.RefreshExpiresIn) * time.Hour
+}
+
+type CORSConfig struct {
+	AllowedOrigins   []string `yaml:"allowed_origins"`
+	AllowedMethods   []string `yaml:"allowed_methods"`
+	AllowedHeaders   []string `yaml:"allowed_headers"`
+	AllowCredentials bool     `yaml:"allow_credentials"`
+	MaxAge           int      `yaml:"max_age"`
+}
+
+type LoggingConfig struct {
+	Level  string `yaml:"level"`
+	Format string `yaml:"format"`
+	Output string `yaml:"output"`
+}
+
+type EmailConfig struct {
+	SMTPHost    string `yaml:"smtp_host"`
+	SMTPPort    int    `yaml:"smtp_port"`
+	Username    string `yaml:"username"`
+	Password    string `yaml:"password"`
+	FromAddress string `yaml:"from_address"`
+	FromName    string `yaml:"from_name"`
+}
+
+type FrontendConfig struct {
+	BuildPath   string `yaml:"build_path"`
+	SPAFallback bool   `yaml:"spa_fallback"`
+}
+
+var cfg *Config
+
+func Load(path string) (*Config, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg = &Config{}
+	if err := yaml.Unmarshal(data, cfg); err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}
+
+func Get() *Config {
+	return cfg
+}