package options

import (
	"fmt"
	"os"
	"time"

	"gitea.timerzz.com/kedaya_haitao/common/pkg/proxy"
	v2 "gitea.timerzz.com/kedaya_haitao/common/structs/v2"
	"gopkg.in/yaml.v3"
)

const (
	ProxyConfigEnv         = "PROXY_CONFIG_PATH"
	DefaultProxyConfigPath = "/cfg/proxy.yaml"
)

type Config struct {
	Proxy         proxy.Option  `yaml:"proxy"`
	ProviderId    v2.ProviderId `yaml:"provider_id"`
	WatchInterval time.Duration
}

func LoadConfigs() (opt *Config, err error) {
	opt = &Config{}
	// 从环境变量中读取ProviderId
	opt.ProviderId = v2.ProviderId(os.Getenv("PROVIDER_ID"))
	if opt.ProviderId == "" {
		return nil, fmt.Errorf("环境变量未配置供应商id")
	}

	opt.WatchInterval, _ = time.ParseDuration(os.Getenv("WATCH_INTERVAL"))

	if opt.WatchInterval == 0 {
		opt.WatchInterval = 5 * time.Minute
	}
	// 加载代理配置
	cfgPath := os.Getenv(ProxyConfigEnv)
	if cfgPath == "" {
		cfgPath = DefaultProxyConfigPath
	}
	f, err := os.Open(cfgPath)
	if err != nil {
		return nil, err
	}
	defer f.Close()
	return opt, yaml.NewDecoder(f).Decode(&opt.Proxy)
}