Add CreatePayment and CompletePayment (#229)

Co-authored-by: Marco Argentieri <tiero@users.noreply.github.com>

* Add claim command

* Persist pending data in sqlite repo

* Remove debug log

* Return pending data at interface level

* Fix unlocking btc wallet after restart

* Lint & Fix whitelist permissions

* Fix send command for covenant

* Update client/covenantless/claim.go

Signed-off-by: Marco Argentieri <3596602+tiero@users.noreply.github.com>

* Fix

* Pay for min relay fee instead of estimating fees for redeem and unconf forfeit txs

* Add support for pending payments (coventanless)

* Fixes

* Fixes

* Improve verbosity

* Fix coin selection

* Fix

---------

Signed-off-by: Marco Argentieri <3596602+tiero@users.noreply.github.com>
Co-authored-by: louisinger <louis@vulpem.com>
Co-authored-by: Marco Argentieri <tiero@users.noreply.github.com>
Co-authored-by: Marco Argentieri <3596602+tiero@users.noreply.github.com>

pkg/client-sdk/client/rest/client.go

@@ -180,14 +180,24 @@ func (a *restClient) ListVtxos(
 			return nil, nil, err
 		}
 
+		var redeemTx string
+		var uncondForfeitTxs []string
+		if v.PendingData != nil {
+			redeemTx = v.PendingData.RedeemTx
+			uncondForfeitTxs = v.PendingData.UnconditionalForfeitTxs
+		}
+
 		spendableVtxos = append(spendableVtxos, client.Vtxo{
 			VtxoKey: client.VtxoKey{
 				Txid: v.Outpoint.Txid,
 				VOut: uint32(v.Outpoint.Vout),
 			},
-			Amount:    uint64(amount),
-			RoundTxid: v.PoolTxid,
-			ExpiresAt: expiresAt,
+			Amount:                  uint64(amount),
+			RoundTxid:               v.PoolTxid,
+			ExpiresAt:               expiresAt,
+			Pending:                 v.Pending,
+			RedeemTx:                redeemTx,
+			UnconditionalForfeitTxs: uncondForfeitTxs,
 		})
 	}
 
@@ -358,6 +368,53 @@ func (a *restClient) FinalizePayment(
 	return err
 }
 
+func (a *restClient) CreatePayment(
+	ctx context.Context, inputs []client.VtxoKey, outputs []client.Output,
+) (string, []string, error) {
+	ins := make([]*models.V1Input, 0, len(inputs))
+	for _, i := range inputs {
+		ins = append(ins, &models.V1Input{
+			Txid: i.Txid,
+			Vout: int64(i.VOut),
+		})
+	}
+	outs := make([]*models.V1Output, 0, len(outputs))
+	for _, o := range outputs {
+		outs = append(outs, &models.V1Output{
+			Address: o.Address,
+			Amount:  strconv.Itoa(int(o.Amount)),
+		})
+	}
+	body := models.V1CreatePaymentRequest{
+		Inputs:  ins,
+		Outputs: outs,
+	}
+	resp, err := a.svc.ArkServiceCreatePayment(
+		ark_service.NewArkServiceCreatePaymentParams().WithBody(&body),
+	)
+	if err != nil {
+		return "", nil, err
+	}
+	return resp.GetPayload().SignedRedeemTx, resp.GetPayload().UsignedUnconditionalForfeitTxs, nil
+}
+
+func (a *restClient) CompletePayment(
+	ctx context.Context, signedRedeemTx string, signedUnconditionalForfeitTxs []string,
+) error {
+	req := &arkv1.CompletePaymentRequest{
+		SignedRedeemTx:                signedRedeemTx,
+		SignedUnconditionalForfeitTxs: signedUnconditionalForfeitTxs,
+	}
+	body := models.V1CompletePaymentRequest{
+		SignedRedeemTx:                req.GetSignedRedeemTx(),
+		SignedUnconditionalForfeitTxs: req.GetSignedUnconditionalForfeitTxs(),
+	}
+	_, err := a.svc.ArkServiceCompletePayment(
+		ark_service.NewArkServiceCompletePaymentParams().WithBody(&body),
+	)
+	return err
+}
+
 func (a *restClient) GetRoundByID(
 	ctx context.Context, roundID string,
 ) (*client.Round, error) {