package conf

import (
	"errors"
	"flag"

	"go-common/library/conf"
	"go-common/library/database/sql"
	ecode "go-common/library/ecode/tip"
	"go-common/library/log"
	bm "go-common/library/net/http/blademaster"
	"go-common/library/net/http/blademaster/middleware/auth"
	"go-common/library/net/rpc/warden"
	"go-common/library/net/trace"
	"go-common/library/queue/databus"

	"github.com/BurntSushi/toml"
)

// global var
var (
	confPath string
	client   *conf.Client
	// Conf config
	Conf = &Config{}
)

// Config config set
type Config struct {
	Ecode       *ecode.Config
	Log         *log.Config
	HTTPServer  *bm.ServerConfig
	HTTPClient  *bm.ClientConfig
	PushRPC     *warden.ClientConfig
	Tracer      *trace.Config
	Auth        *auth.Config
	MySQL       *sql.Config
	ReportPub   *databus.Config
	CallbackPub *databus.Config
	Push        *push
}

type push struct {
	CallbackSize       int
	CallbackChanLen    int
	CallbackGoroutines int
}

func init() {
	flag.StringVar(&confPath, "conf", "", "default config path")
}

// Init init conf
func Init() error {
	if confPath != "" {
		return local()
	}
	return remote()
}

func local() (err error) {
	_, err = toml.DecodeFile(confPath, &Conf)
	return
}

func remote() (err error) {
	if client, err = conf.New(); err != nil {
		return
	}
	err = load()
	return
}

func load() (err error) {
	var (
		s       string
		ok      bool
		tmpConf *Config
	)
	if s, ok = client.Toml2(); !ok {
		return errors.New("load config center error")
	}
	if _, err = toml.Decode(s, &tmpConf); err != nil {
		return errors.New("could not decode config")
	}
	*Conf = *tmpConf
	return
}