feat: notify supplier and client after payment is done

internal/api/handler/payment.go

@@ -29,6 +29,7 @@ type orderReq struct {
 	ClientID    string              `json:"client_id"`
 	Amount      float64             `json:"amount"`
 	Currency    domain.FiatCurrency `json:"currency"`
+	ClientEmail string              `json:"client_email"`
 }
 
 func (hdl *OrderHandler) Post(c *fiber.Ctx) error {
@@ -42,7 +43,7 @@ func (hdl *OrderHandler) Post(c *fiber.Ctx) error {
 		return RenderError(c, fmt.Errorf("hdl.conversor.UsdToBtc %w", err), "")
 	}
 
-	order, err := hdl.orderSrv.NewOrder(c.Context(), req.OrderID, req.ClientID, btcAmount)
+	order, err := hdl.orderSrv.NewOrder(c.Context(), req.OrderID, req.ClientID, req.ClientEmail, btcAmount)
 	if err != nil {
 		return RenderError(c, fmt.Errorf("hdl.orderSrv.NewOrder %w", err), "")
 	}

internal/api/server.go

@@ -102,18 +102,22 @@ func (s *RestServer) onNotification(ctx context.Context, notifChan chan domain.N
 
 		order.Block = notif.BlockHash
 		order.Tx = notif.Tx
-
+		order, err = s.orderSrv.OrderCompleted(ctx, order)
-		if err := s.orderSrv.OrderCompleted(ctx, order); err != nil {
+		if err != nil {
 			log.Println("OrderCompleted:", err)
 			continue
 		}
 
 		// Send email to client and provider
 		if err := s.mailSrv.SendProviderConfirm(mail.SendOK{
-			TxID:      order.Tx,
+			Tx:          order.Tx,
-			BlockHash: order.Block,
+			Block:       order.Block,
-			DocHash:   "",
+			Amount:      order.Amount,
-			To:        "doc.Email",
+			ExplorerUrl: s.btcService.Explorer(order.Tx),
+			CustomerID:  order.ClientID,
+			OrderID:     order.OrderID,
+			Timestamp:   order.PaidAt,
+			To:          order.Email,
 		}); err != nil {
 			log.Println("error while send confirm email:", err)
 			continue

internal/domain/order.go

@@ -10,6 +10,7 @@ type Order struct {
 	ID        primitive.ObjectID `bson:"_id" json:"_id"`
 	OrderID   string             `json:"order_id"`
 	ClientID  string             `json:"client_id"`
+	Email     string             `json:"email"`
 	Amount    float64            `bson:"amount" json:"amount"`
 	Tx        string             `bson:"tx" json:"tx"`
 	Block     string             `bson:"block" json:"block"`

internal/platform/mongodb/order/repository.go

@@ -64,7 +64,7 @@ func (repo *Repo) FromAmount(ctx context.Context, amount float64, timestamp time
 	return order, nil
 }
 
-func (repo *Repo) OrderCompleted(ctx context.Context, order *domain.Order) error {
+func (repo *Repo) OrderCompleted(ctx context.Context, order *domain.Order) (*domain.Order, error) {
 	updateOpts, err := repo.collection.UpdateOne(ctx, bson.M{"_id": order.ID},
 		bson.M{
 			"tx":      order.Tx,
@@ -73,8 +73,8 @@ func (repo *Repo) OrderCompleted(ctx context.Context, order *domain.Order) error
 		},
 	)
 	if err != nil {
-		return fmt.Errorf("collection.UpdateOne: %s", err)
+		return nil, fmt.Errorf("collection.UpdateOne: %s", err)
 	}
 	log.Printf("OrderCompleted update %+v\n", updateOpts)
-	return nil
+	return order, nil
 }

internal/services/mail/mail.go

@@ -31,11 +31,13 @@ type MailService struct {
 }
 
 type SendOK struct {
-	Price       float64
+	Amount      float64
 	ExplorerUrl string
-	TxID        string
+	Tx          string
-	BlockHash   string
+	CustomerID  string
-	DocHash     string
+	OrderID     string
+	Block       string
+	Timestamp   time.Time
 	To          string
 }
 
@@ -115,10 +117,11 @@ func (m *MailService) SendProviderConfirm(data SendOK) error {
 		return fmt.Errorf("os.ReadFile: %s", err)
 	}
 	template := strings.Replace(string(bts), "{{explorer_url}}", data.ExplorerUrl, -1)
-	template = strings.Replace(template, "{{tx_id}}", data.TxID, -1)
+	template = strings.Replace(template, "{{customer_id}}", data.CustomerID, -1)
-	template = strings.Replace(template, "{{block_hash}}", data.BlockHash, -1)
+	template = strings.Replace(template, "{{order_id}}", data.OrderID, -1)
-	template = strings.Replace(template, "{{doc_hash}}", data.DocHash, -1)
+	template = strings.Replace(template, "{{tx}}", data.Tx, -1)
-	template = strings.Replace(template, "{{support_email}}", m.from, -1)
+	template = strings.Replace(template, "{{block}}", data.Block, -1)
+	template = strings.Replace(template, "{{timestamp}}", data.Timestamp.Format(time.RFC3339), -1)
 	msg := []byte(m.messageWithHeaders(okSubject, data.To, template))
 	return m.send(data.To, msg)
 }
@@ -129,10 +132,11 @@ func (m *MailService) SendClientConfirm(data SendOK) error {
 		return fmt.Errorf("os.ReadFile: %s", err)
 	}
 	template := strings.Replace(string(bts), "{{explorer_url}}", data.ExplorerUrl, -1)
-	template = strings.Replace(template, "{{tx_id}}", data.TxID, -1)
+	template = strings.Replace(template, "{{customer_id}}", data.CustomerID, -1)
-	template = strings.Replace(template, "{{block_hash}}", data.BlockHash, -1)
+	template = strings.Replace(template, "{{order_id}}", data.OrderID, -1)
-	template = strings.Replace(template, "{{doc_hash}}", data.DocHash, -1)
+	template = strings.Replace(template, "{{tx}}", data.Tx, -1)
-	template = strings.Replace(template, "{{support_email}}", m.from, -1)
+	template = strings.Replace(template, "{{block}}", data.Block, -1)
+	template = strings.Replace(template, "{{timestamp}}", data.Timestamp.Format(time.RFC3339), -1)
 	msg := []byte(m.messageWithHeaders(okSubject, data.To, template))
 	return m.send(data.To, msg)
 }
@@ -144,9 +148,8 @@ func (m *MailService) SendFail(data SendOK) error {
 		return fmt.Errorf("os.ReadFile: %s", err)
 	}
 	template := strings.Replace(string(bts), "{{explorer_url}}", data.ExplorerUrl, -1)
-	template = strings.Replace(template, "{{tx_id}}", data.TxID, -1)
+	template = strings.Replace(template, "{{tx_id}}", data.Tx, -1)
-	template = strings.Replace(template, "{{block_hash}}", data.BlockHash, -1)
+	template = strings.Replace(template, "{{block_hash}}", data.Block, -1)
-	template = strings.Replace(template, "{{doc_hash}}", data.DocHash, -1)
 	template = strings.Replace(template, "{{support_email}}", m.from, -1)
 	// TODO: Alert client too
 	msg := []byte(m.messageWithHeaders(okSubject, data.To, template))

internal/services/mail/mail_test.go

@@ -3,6 +3,7 @@ package mail
 import (
 	"net/smtp"
 	"testing"
+	"time"
 
 	"gitea.urkob.com/urko/btc-pay-checker/kit"
 	"gitea.urkob.com/urko/btc-pay-checker/kit/cfg"
@@ -29,9 +30,13 @@ func init() {
 
 func Test_mailService_SendOK(t *testing.T) {
 	dto := SendOK{
-		Price:       10.2,
+		Amount:      12.0,
 		ExplorerUrl: "test",
-		TxID:        "test-hash",
+		Tx:          "test-hash",
+		CustomerID:  "client",
+		OrderID:     "order",
+		Block:       "block",
+		Timestamp:   time.Now(),
 		To:          config.MailTo,
 	}
 
@@ -41,9 +46,13 @@ func Test_mailService_SendOK(t *testing.T) {
 
 func Test_mailService_SendConfirm(t *testing.T) {
 	dto := SendOK{
+		Amount:      12.0,
 		ExplorerUrl: "test",
-		TxID:        "test-hash",
+		Tx:          "test-hash",
-		BlockHash:   "block-hash",
+		CustomerID:  "client",
+		OrderID:     "order",
+		Block:       "block",
+		Timestamp:   time.Now(),
 		To:          config.MailTo,
 	}
 

internal/services/mail/templates/client_confirm.html

@@ -1 +1,51 @@
-TODO:
+<!DOCTYPE html>
+<html>
+<head>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            padding: 20px;
+            color: #333;
+        }
+        .container {
+            border-radius: 5px;
+            background-color: #f2f2f2;
+            padding: 20px;
+        }
+        .header {
+            text-align: center;
+            padding: 10px;
+            color: white;
+            background-color: #4CAF50;
+        }
+        .content {
+            margin: 20px 0;
+        }
+        .footer {
+            text-align: center;
+            padding: 10px;
+            color: white;
+            background-color: #333;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h2>Payment Confirmation</h2>
+        </div>
+        <div class="content">
+            <p>Dear Customer,</p>
+            <p>We are pleased to inform you that we have received your Bitcoin payment. Here are the details of the transaction:</p>
+            <p><strong>Transaction ID:</strong> {{tx}}</p>
+            <p><strong>Block ID:</strong> {{block}}</p>
+            <p><strong>Timestamp:</strong> {{timestamp}}</p>
+            <p>You can view the transaction details at the following URL: <a href="{{explorer_url}}">{{explorer_url}}</a></p>
+            <p>Thank you for your payment!</p>
+        </div>
+        <div class="footer">
+            <p>© 2023 Bitcoin Payment Checker. All rights reserved.</p>
+        </div>
+    </div>
+</body>
+</html>

internal/services/mail/templates/provider_confirm.html

@@ -1 +1,53 @@
-TODO:
+<!DOCTYPE html>
+<html>
+<head>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            padding: 20px;
+            color: #333;
+        }
+        .container {
+            border-radius: 5px;
+            background-color: #f2f2f2;
+            padding: 20px;
+        }
+        .header {
+            text-align: center;
+            padding: 10px;
+            color: white;
+            background-color: #4CAF50;
+        }
+        .content {
+            margin: 20px 0;
+        }
+        .footer {
+            text-align: center;
+            padding: 10px;
+            color: white;
+            background-color: #333;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h2>Payment Confirmation</h2>
+        </div>
+        <div class="content">
+            <p>Dear Supplier,</p>
+            <p>We are pleased to inform you that we have received a Bitcoin payment for a recent order. Here are the details of the transaction:</p>
+            <p><strong>Customer ID:</strong> {{customer_id}}</p>
+            <p><strong>Order ID:</strong> {{order_id}}</p>
+            <p><strong>Transaction ID:</strong> {{tx}}</p>
+            <p><strong>Block ID:</strong> {{block}}</p>
+            <p><strong>Timestamp:</strong> {{timestamp}}</p>
+            <p>You can view the transaction details at the following URL: <a href="{{explorer_url}}">{{explorer_url}}</a></p>
+            <p>We will proceed with the order fulfillment as per our agreement. Thank you for your cooperation!</p>
+        </div>
+        <div class="footer">
+            <p>© 2023 Bitcoin Payment Checker. All rights reserved.</p>
+        </div>
+    </div>
+</body>
+</html>

internal/services/order.go

@@ -28,16 +28,18 @@ func (o *Order) WithExpiration(expiration time.Duration) *Order {
 	return o
 }
 
-func (o *Order) NewOrder(ctx context.Context, OrderID string, ClientID string, amount float64) (*domain.Order, error) {
+func (o *Order) NewOrder(ctx context.Context, orderID, clientID, email string, amount float64) (*domain.Order, error) {
 	order := domain.Order{
 		ID:        primitive.NewObjectID(),
-		OrderID:   OrderID,
+		OrderID:   orderID,
-		ClientID:  ClientID,
+		ClientID:  clientID,
 		Amount:    amount,
 		PaidAt:    time.Time{},
 		CreatedAt: time.Now(),
 		ExpiresAt: time.Now().Add(o.expiration),
+		Email:     email,
 	}
+
 	_, err := o.repo.Insert(ctx, &order)
 	if err != nil {
 		return nil, err
@@ -49,6 +51,6 @@ func (o *Order) FromAmount(ctx context.Context, amount float64, timestamp time.T
 	return o.repo.FromAmount(ctx, amount, timestamp)
 }
 
-func (o *Order) OrderCompleted(ctx context.Context, order *domain.Order) error {
+func (o *Order) OrderCompleted(ctx context.Context, order *domain.Order) (*domain.Order, error) {
 	return o.repo.OrderCompleted(ctx, order)
 }