Very dirty patch to add Whatsapp contact button, Hong Kong area code hardcoded

0001-Adhoc-patch-to-add-Whatsapp-button-for-contacting-cu.patch

From f9482c5c0c2da037acf3c08942be711df630dc95 Mon Sep 17 00:00:00 2001
From: Ivan Ip <m@lifeho.me>
Date: Thu, 29 Apr 2021 23:07:42 +0800
Subject: [PATCH] Adhoc patch to add Whatsapp button for contacting customer

---
 .../BillingInformationViewController.swift    | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/WooCommerce/Classes/ViewRelated/Orders/Order Details/Customer Section/Billing Information/BillingInformationViewController.swift b/WooCommerce/Classes/ViewRelated/Orders/Order Details/Customer Section/Billing Information/BillingInformationViewController.swift
index 580e5f9b6..78cff562d 100644
--- a/WooCommerce/Classes/ViewRelated/Orders/Order Details/Customer Section/Billing Information/BillingInformationViewController.swift	
+++ b/WooCommerce/Classes/ViewRelated/Orders/Order Details/Customer Section/Billing Information/BillingInformationViewController.swift	
@@ -123,6 +123,12 @@ private extension BillingInformationViewController {
             self.displayMessageComposerIfPossible(from: self)
         }
 
+        actionSheet.addDefaultActionWithTitle("Whatsapp") { [weak self] _ in
+            guard let self = self else { return }
+            ServiceLocator.analytics.track(.orderDetailCustomerSMSOptionTapped)
+            self.displayWhatsappComposerIfPossible(from: self)
+        }
+
         let popoverController = actionSheet.popoverPresentationController
         popoverController?.sourceView = sourceView
         popoverController?.sourceRect = sourceView.bounds
@@ -160,6 +166,48 @@ private extension BillingInformationViewController {
                                                                              "type": "sms"])
     }
 
+    /// Initiate communication with a customer via Whatsapp
+    func displayWhatsappComposerIfPossible(from: UIViewController) {
+        guard let phoneNumber = order.billingAddress?.cleanedPhoneNumber else {
+            return
+        }
+
+        let whatsappNumber: String
+        if phoneNumber.characterCount == 8 {
+            whatsappNumber = "+852\(phoneNumber)"
+        } else {
+            whatsappNumber = phoneNumber
+        }
+
+        let urlWhats = "whatsapp://send?phone=\(whatsappNumber)"
+
+        let title = "Error"
+        let alertController = UIAlertController(title: title,
+                                                message: "Whatsapp is not installed.",
+                                                preferredStyle: .alert)
+        let cancel = UIAlertAction(title: "OK",
+                                   style: .cancel,
+                                   handler: nil)
+        alertController.addAction(cancel)
+
+        if let urlString = urlWhats.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed) {
+            if let whatsappURL = NSURL(string: urlString) {
+                if UIApplication.shared.canOpenURL(whatsappURL as URL) {
+                    UIApplication.shared.open(whatsappURL as URL, options: [:], completionHandler: { (Bool) in
+                    })
+                } else {
+                    present(alertController, animated: true)
+                }
+            }
+        }
+
+        ServiceLocator.analytics.track(.orderContactAction, withProperties: [
+            "id": order.orderID,
+            "status": order.status.rawValue,
+            "type": "whatsapp"
+        ])
+    }
+
     /// Create an action sheet that offers the option to copy the email address
     ///
     func displayEmailCopyAlert(from sourceView: UIView) {
-- 
2.30.1 (Apple Git-130)