package credential

import (
	"encoding/json"
	"errors"

	"git.loafle.net/overflow/model/meta"
)

type Credential struct {
}

type CredentialMap map[string]*Credential

func (m *CredentialMap) UnmarshalJSON(data []byte) error {
	credentials := make(map[string]json.RawMessage)
	err := json.Unmarshal(data, &credentials)
	if nil != err {
		return err
	}

	result := make(CredentialMap)
	for k, v := range credentials {
		var i interface{}

		switch meta.ToMetaCredentialTypeEnum(&meta.MetaCredentialType{Key: k}) {
		case meta.MetaCredentialTypeEnumSNMP:
			i = &SNMPCredential{}
		case meta.MetaCredentialTypeEnumWindows:
			i = &WindowsCredential{}
		default:
			return errors.New("Unrecognized Credential")
		}

		err := json.Unmarshal(v, i)
		if nil != err {
			return err
		}
		result[k] = i.(*Credential)
	}
	*m = result

	return nil
}