Rename folders (#97)

* Rename arkd folder & drop cli

* Rename ark cli folder & update docs

* Update readme

* Fix

* scripts: add build-all

* Add target to build cli for all platforms

* Update build scripts

---------

Co-authored-by: tiero <3596602+tiero@users.noreply.github.com>

server/internal/interface/grpc/handlers/utils.go

@@ -0,0 +1,64 @@
+package handlers
+
+import (
+	"encoding/hex"
+	"fmt"
+
+	arkv1 "github.com/ark-network/ark/api-spec/protobuf/gen/ark/v1"
+	"github.com/ark-network/ark/common"
+	"github.com/ark-network/ark/internal/core/domain"
+	"github.com/decred/dcrd/dcrec/secp256k1/v4"
+	"github.com/vulpemventures/go-elements/address"
+	"github.com/vulpemventures/go-elements/psetv2"
+)
+
+func parseTxs(txs []string) ([]string, error) {
+	if len(txs) <= 0 {
+		return nil, fmt.Errorf("missing list of forfeit txs")
+	}
+	for _, tx := range txs {
+		if _, err := psetv2.NewPsetFromBase64(tx); err != nil {
+			return nil, fmt.Errorf("invalid tx format")
+		}
+	}
+	return txs, nil
+}
+
+func parseAddress(addr string) (string, *secp256k1.PublicKey, *secp256k1.PublicKey, error) {
+	if len(addr) <= 0 {
+		return "", nil, nil, fmt.Errorf("missing address")
+	}
+	return common.DecodeAddress(addr)
+}
+
+func parseReceivers(outs []*arkv1.Output) ([]domain.Receiver, error) {
+	receivers := make([]domain.Receiver, 0, len(outs))
+	for _, out := range outs {
+		if out.GetAmount() == 0 {
+			return nil, fmt.Errorf("missing output amount")
+		}
+		if len(out.GetAddress()) <= 0 {
+			return nil, fmt.Errorf("missing output address")
+		}
+		var pubkey, addr string
+		_, pk, _, err := common.DecodeAddress(out.GetAddress())
+		if err != nil {
+			if _, err := address.ToOutputScript(out.GetAddress()); err != nil {
+				return nil, fmt.Errorf("invalid output address: unknown format")
+			}
+			if isConf, _ := address.IsConfidential(out.GetAddress()); isConf {
+				return nil, fmt.Errorf("invalid output address: must be unconfidential")
+			}
+			addr = out.GetAddress()
+		}
+		if pk != nil {
+			pubkey = hex.EncodeToString(pk.SerializeCompressed())
+		}
+		receivers = append(receivers, domain.Receiver{
+			Pubkey:         pubkey,
+			Amount:         out.GetAmount(),
+			OnchainAddress: addr,
+		})
+	}
+	return receivers, nil
+}