package morph

import (
	"fmt"

	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
	"github.com/nspcc-dev/neo-go/pkg/util"
	"github.com/spf13/viper"
)

// neo-go doesn't support []util.Uint160 type:
// https://github.com/nspcc-dev/neo-go/blob/v0.103.0/pkg/smartcontract/parameter.go#L262
// Thus, return []smartcontract.Parameter.
func getFrostfsIDAuthorizedKeys(v *viper.Viper) ([]smartcontract.Parameter, error) {
	var res []smartcontract.Parameter

	ks := v.GetStringSlice(frostfsIDAuthorizedKeysConfigKey)
	for i := range ks {
		h, err := address.StringToUint160(ks[i])
		if err == nil {
			res = append(res, smartcontract.Parameter{Type: smartcontract.Hash160Type, Value: h})
			continue
		}

		h, err = util.Uint160DecodeStringLE(ks[i])
		if err == nil {
			res = append(res, smartcontract.Parameter{Type: smartcontract.Hash160Type, Value: h})
			continue
		}

		pk, err := keys.NewPublicKeyFromString(ks[i])
		if err == nil {
			res = append(res, smartcontract.Parameter{Type: smartcontract.Hash160Type, Value: pk.GetScriptHash()})
			continue
		}
		return nil, fmt.Errorf("frostfsid: #%d item in authorized_keys is invalid: '%s'", i, ks[i])
	}
	return res, nil
}