package config

import "github.com/spf13/viper"

type Config struct {
	OSI                  OSIConfig   `mapstructure:"osi"`
	PHIS                 PHISConfig  `mapstructure:"phis"`
	Redis                RedisConfig `mapstructure:"redis"`
	ReportLogFileDir     string      `mapstructure:"report_log_file_dir"`
	RetryMax             int         `mapstructure:"retry_max"`
	CircuitFailThreshold int         `mapstructure:"circuit_fail_threshold"`
	CircuitSleepSec      int         `mapstructure:"circuit_sleep_sec"`
}

type OSIConfig struct {
	BaseURL     string `mapstructure:"base_url"`
	OrgCode     string `mapstructure:"org_code"`
	UserName    string `mapstructure:"user_name"`
	Ask         string `mapstructure:"ask"`
	DeviceSN    string `mapstructure:"device_sn"`
	OperateUser string `mapstructure:"operate_user"`
	TimeoutSec  int    `mapstructure:"timeout_sec"`
	Socks5Proxy string `mapstructure:"socks5_proxy"`
}

type PHISConfig struct {
	BaseURL         string `mapstructure:"base_url"`
	Token           string `mapstructure:"token"`
	RegionCode      string `mapstructure:"region_code"`
	PollIntervalSec int    `mapstructure:"poll_interval_sec"`
}

type RedisConfig struct {
	Addr string `mapstructure:"addr"`
	DB   int    `mapstructure:"db"`
}

func Load(path string) (Config, error) {
	v := viper.New()
	setDefaults(v)

	if path != "" {
		v.SetConfigFile(path)
		v.SetConfigType("yaml")
		if err := v.ReadInConfig(); err != nil {
			if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
				return Config{}, err
			}
		}
	}

	var cfg Config
	if err := v.Unmarshal(&cfg); err != nil {
		return Config{}, err
	}
	return cfg, nil
}

func setDefaults(v *viper.Viper) {
	v.SetDefault("osi.base_url", "http://<osi-host>")
	v.SetDefault("osi.timeout_sec", 20)
	v.SetDefault("phis.poll_interval_sec", 5)
	v.SetDefault("redis.db", 0)
	v.SetDefault("report_log_file_dir", "logs")
	v.SetDefault("retry_max", 3)
	v.SetDefault("circuit_fail_threshold", 5)
	v.SetDefault("circuit_sleep_sec", 60)
}