package sms

import (
	"errors"
)

var (
	ErrSmsNoMoney                = errors.New("sms no money")
	ErrSmsProviderReturnBadValue = errors.New("sms provider return bad value")
	ErrSmsProviderNotFound       = errors.New("sms provider not found")

	providers map[string]ISms = make(map[string]ISms)
)

type ISms interface {
	Send(phone, msg string) error
	SendTpl(phone, tpl string, params []byte) error
	// BatchSendTpl( phones []string, tpl, params []string) error
	GetBalance() (float64, error) // balance available
	GetAvailable() (int64, error) // how many sms times remain we can send
	Name() string                 // provider name
}

func Use(sms ...ISms) {
	for _, p := range sms {
		providers[p.Name()] = p
	}
}

func All() map[string]ISms {
	return providers
}

func Get(name string) (ISms, error) {
	sms, ok := providers[name]
	if ok {
		return sms, nil
	}
	return nil, ErrSmsProviderNotFound
}

func Clear() {
	providers = map[string]ISms{}
}