All files / routes/admin/whatsapp send.routes.ts

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100% Functions 2/2
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import { normalizeToE164 } from "@interioring/utils/validation/phone";
import { Hono } from "hono";
import type { Dal } from "../../../dal";
import { error, handleError, success } from "../../../lib/response";
import { requireUser } from "../../../lib/utils";
import { requireWhatsAppClient } from "../../../lib/whatsapp/client";
import type { Services } from "../../../services";
 
type Env = {
	Bindings: CloudflareBindings;
	Variables: {
		user: { id: string; name: string; email: string } | null;
		session: unknown;
		dal: Dal;
		services: Services;
	};
};
 
const send = new Hono<Env>();
 
// GET /check-phone - Check if we can send a text message to this number
send.get("/check-phone", async (c) => {
	try {
		requireUser(c.get("user"));
		const phone = c.req.query("phone");
		if (!phone) {
			return error(c, "VALIDATION_ERROR", "Phone number is required", 400);
		}
 
		const dal = c.get("dal");
		const services = c.get("services");
 
		const conversation = await dal.waConversations.findByPhoneNumber(phone);
 
		if (!conversation) {
			return success(c, {
				exists: false,
				windowOpen: false,
				contactName: null,
				contactType: null,
				canSendText: false,
			});
		}
 
		const windowOpen = services.waConversation.isWindowOpen(conversation);
 
		return success(c, {
			exists: true,
			windowOpen,
			contactName: conversation.contactName,
			contactType: conversation.contactType,
			canSendText: windowOpen,
			lastCustomerMessageAt: conversation.lastCustomerMessageAt,
		});
	} catch (err) {
		return handleError(c, err);
	}
});
 
// POST / - Send ad-hoc message to any number
send.post("/", async (c) => {
	try {
		const user = requireUser(c.get("user"));
		const services = c.get("services");
		const dal = c.get("dal");
		const body = await c.req.json<{
			phone: string;
			message?: string;
			templateName?: string;
			language?: string;
			components?: unknown[];
			mediaUrl?: string;
			mediaType?: "video" | "image" | "document";
			caption?: string;
		}>();
 
		if (!body.phone) {
			return error(c, "VALIDATION_ERROR", "Phone number is required", 400);
		}
 
		const e164 = normalizeToE164(body.phone);
		if (!e164) {
			return error(c, "VALIDATION_ERROR", "Invalid phone number format", 400);
		}
 
		const client = requireWhatsAppClient(c.env);
 
		// Find or create conversation for this phone number
		const conversation = await services.waConversation.getOrCreateConversation(
			body.phone,
		);
 
		let result: unknown;
		if (body.templateName) {
			result = await services.waConversation.replyWithTemplate(
				conversation.id,
				body.templateName,
				body.language ?? "en",
				body.components,
				user.id,
				client,
			);
		I} else if (body.mediaUrl) {
			// Media is free-form only — Meta has no media message outside an open
			// window that is not a template header. Checked before the send so the
			// operator gets the reason rather than a Graph error.
			if (!services.waConversation.isWindowOpen(conversation)) {
				return error(
					c,
					"WINDOW_EXPIRED",
					"24-hour window expired. Media can only be sent free-form, inside an open window — ask them to message you first.",
					400,
				);
			}
			const kind = body.mediaType ?? "video";
			if (!["video", "image", "document"].includes(kind)) {
				return error(
					c,
					"VALIDATION_ERROR",
					"mediaType must be video, image or document",
					400,
				);
			}
			// Meta fetches this URL itself. A YouTube or Drive share page serves
			// HTML, not media, and is rejected — it must be a direct file URL.
			if (!/^https:\/\//.test(body.mediaUrl)) {
				return error(
					c,
					"VALIDATION_ERROR",
					"mediaUrl must be a public https:// link to the file itself",
					400,
				);
			}
			result = await services.waConversation.replyWithMedia(
				conversation.id,
				kind,
				body.mediaUrl,
				body.caption,
				user.id,
				client,
			);
		} else if (body.message) {
			if (body.message.length > 4096) {
				return error(
					c,
					"VALIDATION_ERROR",
					"Message too long. Maximum is 4096 characters.",
					400,
				);
			}
			// Check if window is open for text messages
			if (!services.waConversation.isWindowOpen(conversation)) {
				return error(
					c,
					"WINDOW_EXPIRED",
					"24-hour window expired. Use a template message instead.",
					400,
				);
			}
			result = await services.waConversation.reply(
				conversation.id,
				body.message,
				user.id,
				client,
			);
		} else {
			return error(
				c,
				"VALIDATION_ERROR",
				"Either message, templateName or mediaUrl is required",
				400,
			);
		}
 
		// Stamp the prospect, when this number is one.
		//
		// Without it an ad-hoc send to a prospect leaves NO RRM trace: the
		// delivery webhook's `recordRrmDeliveryStatus` finds the row by wamid,
		// reads a null `prospect_id`, and returns `not_rrm` — so a failure like
		// Meta's 131049 marketing cap is stored on `wa_messages` and visible
		// nowhere an operator looks. It also kept these sends out of the
		// frequency caps and out of the scheduler's account-restriction trigger.
		//
		// Cheap, and it makes machinery that already exists reachable from the
		// path operators actually use. Both phone forms, because `phone_norm`
		// carries no leading "+" and `wa_conversations.phone_number` may.
		const sentMessageId = (result as { id?: number } | undefined)?.id;
		if (sentMessageId !== undefined) {
			const prospect =
				(await dal.rrmProspects.findByPhone(e164.replace(/^\+/, ""))) ??
				(await dal.rrmProspects.findByPhone(e164));
			if (prospect) {
				await dal.waMessages.linkProspect(sentMessageId, prospect.id);
			}
		}
 
		return success(c, { message: result, conversationId: conversation.id });
	} catch (err) {
		return handleError(c, err);
	}
});
 
export default send;