golang-base/internal/config/initialize.go

82 lines
2.5 KiB
Go

package config
import (
"log/slog"
"os"
"reflect"
"strconv"
"time"
)
type Config struct {
// time configuration
TimeFormat string `default:"2006-01-02 15:04:05" env:"time_format"`
TimeZoneLocal string `default:"America/Chicago" env:"time_zone"`
TZLocal *time.Location `ignored:"true"`
TZUTC *time.Location `ignored:"true"`
// logging
LogLevel int `default:"50" env:"log_level"`
Log *slog.Logger `ignored:"true"`
SLogLevel *slog.LevelVar `ignored:"true"`
// webserver
WebServerPort int `default:"8080" env:"webserver_port"`
WebServerIP string `default:"0.0.0.0" env:"webserver_ip"`
WebServerReadTimeout int `default:"5" env:"webserver_read_timeout"`
WebServerWriteTimeout int `default:"1" env:"webserver_write_timeout"`
WebServerIdleTimeout int `default:"2" env:"webserver_idle_timeout"`
}
// New initializes the config variable for use with a prepared set of defaults.
func New() Config {
cfg := Config{
SLogLevel: new(slog.LevelVar),
}
cfg.Log = slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
Level: cfg.SLogLevel,
}))
return cfg
}
func setLogLevel(cfg *Config) {
switch {
// error
case cfg.LogLevel <= 20:
cfg.SLogLevel.Set(slog.LevelError)
cfg.Log.Info("Log level updated", "level", slog.LevelError)
// warning
case cfg.LogLevel > 20 && cfg.LogLevel <= 40:
cfg.SLogLevel.Set(slog.LevelWarn)
cfg.Log.Info("Log level updated", "level", slog.LevelWarn)
// info
case cfg.LogLevel > 40 && cfg.LogLevel <= 60:
cfg.SLogLevel.Set(slog.LevelInfo)
cfg.Log.Info("Log level updated", "level", slog.LevelInfo)
// debug
case cfg.LogLevel > 60:
cfg.SLogLevel.Set(slog.LevelDebug)
cfg.Log.Info("Log level updated", "level", slog.LevelDebug)
}
// set default logger
slog.SetDefault(cfg.Log)
}
func printRunningConfig(cfg *Config, cfgInfo []structInfo) {
for _, info := range cfgInfo {
switch info.Type.String() {
case "string":
p := reflect.ValueOf(cfg).Elem().FieldByName(info.Name).Addr().Interface().(*string)
cfg.Log.Debug("Running Configuration", info.Alt, *p)
case "bool":
p := reflect.ValueOf(cfg).Elem().FieldByName(info.Name).Addr().Interface().(*bool)
cfg.Log.Debug("Running Configuration", info.Alt, strconv.FormatBool(*p))
case "int":
p := reflect.ValueOf(cfg).Elem().FieldByName(info.Name).Addr().Interface().(*int)
cfg.Log.Debug("Running Configuration", info.Alt, strconv.FormatInt(int64(*p), 10))
}
}
}