feat: integrate Slack notifications for contact form submissions

- Added a new Slack notification feature to alert sales or support channels upon contact form submissions.
- Implemented a `notifySlack` function to format and send messages to Slack using a webhook.
- Enhanced error handling to ensure email notifications proceed even if Slack notifications fail.

Author: Siumauricio

apps/website/app/api/contact/route.ts

@@ -1,4 +1,5 @@
 import { getHubSpotUTK, submitToHubSpot } from "@/lib/hubspot";
+import { notifySlack } from "@/lib/slack";
 import type { NextRequest } from "next/server";
 import { NextResponse } from "next/server";
 import { Resend } from "resend";
@@ -70,6 +71,23 @@ export async function POST(request: NextRequest) {
 			}
 		}
 
+		// Send notification to Slack (sales or support channel)
+		try {
+			const slackSuccess = await notifySlack(body);
+			if (slackSuccess) {
+				console.log(
+					`Successfully sent ${body.inquiryType} inquiry notification to Slack`,
+				);
+			} else {
+				console.warn(
+					`Failed to send ${body.inquiryType} inquiry notification to Slack, but continuing with email`,
+				);
+			}
+		} catch (error) {
+			console.error("Error sending to Slack:", error);
+			// Continue with email even if Slack fails
+		}
+
 		// Format email content
 		const emailSubject = `[${body.inquiryType.toUpperCase()}] New contact form submission from ${body.firstName} ${body.lastName}`;
 		const emailBody = `

apps/website/lib/slack.ts

@@ -0,0 +1,167 @@
+interface ContactFormData {
+	inquiryType: "support" | "sales" | "other";
+	firstName: string;
+	lastName: string;
+	email: string;
+	company: string;
+	message: string;
+}
+
+interface SlackMessage {
+	text?: string;
+	blocks?: SlackBlock[];
+}
+
+interface SlackBlock {
+	type: string;
+	text?: {
+		type: string;
+		text: string;
+	};
+	fields?: Array<{
+		type: string;
+		text: string;
+	}>;
+	elements?: Array<{
+		type: string;
+		text: string;
+	}>;
+}
+
+/**
+ * Format contact form data as a Slack message with blocks
+ */
+function formatContactDataForSlack(
+	contactData: ContactFormData,
+): SlackMessage {
+	// Get emoji and label based on inquiry type
+	let inquiryTypeEmoji: string;
+	let inquiryTypeLabel: string;
+
+	switch (contactData.inquiryType) {
+		case "sales":
+			inquiryTypeEmoji = "💰";
+			inquiryTypeLabel = "Sales";
+			break;
+		case "support":
+			inquiryTypeEmoji = "🛟";
+			inquiryTypeLabel = "Support";
+			break;
+		case "other":
+			inquiryTypeEmoji = "📝";
+			inquiryTypeLabel = "Other";
+			break;
+		default:
+			inquiryTypeEmoji = "📧";
+			inquiryTypeLabel = "Contact";
+	}
+
+	return {
+		text: `New ${contactData.inquiryType} inquiry from ${contactData.firstName} ${contactData.lastName}`,
+		blocks: [
+			{
+				type: "header",
+				text: {
+					type: "plain_text",
+					text: `${inquiryTypeEmoji} New ${inquiryTypeLabel} Inquiry`,
+				},
+			},
+			{
+				type: "section",
+				fields: [
+					{
+						type: "mrkdwn",
+						text: `*Name:*\n${contactData.firstName} ${contactData.lastName}`,
+					},
+					{
+						type: "mrkdwn",
+						text: `*Email:*\n${contactData.email}`,
+					},
+					{
+						type: "mrkdwn",
+						text: `*Company:*\n${contactData.company}`,
+					},
+					{
+						type: "mrkdwn",
+						text: `*Type:*\n${inquiryTypeLabel}`,
+					},
+				],
+			},
+			{
+				type: "section",
+				text: {
+					type: "mrkdwn",
+					text: `*Message:*\n${contactData.message}`,
+				},
+			},
+			{
+				type: "divider",
+			},
+			{
+				type: "context",
+				elements: [
+					{
+						type: "mrkdwn",
+						text: "Sent from Dokploy website contact form",
+					},
+				],
+			},
+		],
+	};
+}
+
+/**
+ * Send a message to Slack using a webhook URL
+ */
+export async function sendToSlack(
+	contactData: ContactFormData,
+	webhookUrl: string,
+): Promise<boolean> {
+	try {
+		if (!webhookUrl) {
+			console.error("Slack webhook URL is not configured");
+			return false;
+		}
+
+		const message = formatContactDataForSlack(contactData);
+
+		const response = await fetch(webhookUrl, {
+			method: "POST",
+			headers: {
+				"Content-Type": "application/json",
+			},
+			body: JSON.stringify(message),
+		});
+
+		if (!response.ok) {
+			const errorText = await response.text();
+			console.error("Slack webhook error:", response.status, errorText);
+			return false;
+		}
+
+		console.log("Slack notification sent successfully");
+		return true;
+	} catch (error) {
+		console.error("Error sending to Slack:", error);
+		return false;
+	}
+}
+
+/**
+ * Send contact form notification to Slack
+ * All inquiry types (sales, support, other) are sent to the same Slack channel
+ */
+export async function notifySlack(
+	contactData: ContactFormData,
+): Promise<boolean> {
+	const webhookUrl = process.env.SLACK_WEBHOOK_URL;
+
+	if (!webhookUrl) {
+		console.warn(
+			"Slack webhook URL is not configured (SLACK_WEBHOOK_URL)",
+		);
+		return false;
+	}
+
+	return await sendToSlack(contactData, webhookUrl);
+}