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>

client/client.go

@@ -0,0 +1,82 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	arkv1 "github.com/ark-network/ark/api-spec/protobuf/gen/ark/v1"
+	"github.com/urfave/cli/v2"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
+)
+
+type vtxo struct {
+	amount   uint64
+	txid     string
+	vout     uint32
+	poolTxid string
+}
+
+func getVtxos(
+	ctx *cli.Context, client arkv1.ArkServiceClient, addr string,
+) ([]vtxo, error) {
+	response, err := client.ListVtxos(ctx.Context, &arkv1.ListVtxosRequest{
+		Address: addr,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	vtxos := make([]vtxo, 0, len(response.Vtxos))
+	for _, v := range response.Vtxos {
+		vtxos = append(vtxos, vtxo{
+			amount:   v.Receiver.Amount,
+			txid:     v.Outpoint.Txid,
+			vout:     v.Outpoint.Vout,
+			poolTxid: v.PoolTxid,
+		})
+	}
+
+	return vtxos, nil
+}
+
+func getClientFromState(ctx *cli.Context) (arkv1.ArkServiceClient, func(), error) {
+	state, err := getState()
+	if err != nil {
+		return nil, nil, err
+	}
+	addr, ok := state["ark_url"]
+	if !ok {
+		return nil, nil, fmt.Errorf("missing ark_url")
+	}
+	return getClient(ctx, addr)
+}
+
+func getClient(ctx *cli.Context, addr string) (arkv1.ArkServiceClient, func(), error) {
+	creds := insecure.NewCredentials()
+	port := 80
+	if strings.HasPrefix(addr, "https://") {
+		addr = strings.TrimPrefix(addr, "https://")
+		creds = credentials.NewTLS(nil)
+		port = 443
+	}
+	if !strings.Contains(addr, ":") {
+		addr = fmt.Sprintf("%s:%d", addr, port)
+	}
+	conn, err := grpc.Dial(addr, grpc.WithTransportCredentials(creds))
+	if err != nil {
+		return nil, nil, err
+	}
+
+	client := arkv1.NewArkServiceClient(conn)
+
+	closeFn := func() {
+		err := conn.Close()
+		if err != nil {
+			fmt.Printf("error closing connection: %s\n", err)
+		}
+	}
+
+	return client, closeFn, nil
+}