IOS-155: strikethrough on the purchase buttons.

1Weather/UI/View controllers/Subscriptions/Views/SubscriptionPurchaseButton.swift

@@ -30,8 +30,18 @@ class SubscriptionPurchaseButton: UIButton {
         super.init(frame: .zero)
         self.translatesAutoresizingMaskIntoConstraints = false
         self.setAttributedTitle(buildTitle(), for: .normal)
-        self.backgroundColor = ThemeManager.currentTheme.subscriptionPurchaseBackgroundColor
-        self.setTitleColor(ThemeManager.currentTheme.subscriptionPurchaseColor, for: .normal)
+        if type == .yearly {
+            self.setTitleColor(ThemeManager.currentTheme.subscriptionPurchaseColor, for: .normal)
+            self.backgroundColor = ThemeManager.currentTheme.subscriptionPurchaseBackgroundColor
+        }
+        else {
+            self.setTitleColor(ThemeManager.currentTheme.subscriptionPurchaseBackgroundColor, for: .normal)
+            self.backgroundColor = ThemeManager.currentTheme.subscriptionPurchaseColor
+        }
+        self.layer.borderWidth = 1
+        self.layer.borderColor = ThemeManager.currentTheme.subscriptionPurchaseBackgroundColor.cgColor
+        
+        
         self.clipsToBounds = true
         self.layer.cornerRadius = 6
         self.snp.makeConstraints { make in
@@ -52,17 +62,39 @@ class SubscriptionPurchaseButton: UIButton {
         
         let template = "subscription.button.\(showUpgradeText ? "upgrade" : "buy").\(subscriptionType.rawValue)".localized()
         
-        var withPrices = template.replacingOccurrences(of: "#PRICE#", with: price)
+        let priceAttributes: [NSAttributedString.Key: Any]
+        if showUpgradeText {
+            priceAttributes = [
+                NSAttributedString.Key.font: AppFont.SFPro.light(size: 18),
+                NSAttributedString.Key.strikethroughStyle: NSUnderlineStyle.single.rawValue
+            ]
+        }
+        else {
+            priceAttributes = [
+                NSAttributedString.Key.font: AppFont.SFPro.semibold(size: 18)
+            ]
+        }
+        
+        let priceValue = NSAttributedString(string: price, attributes: priceAttributes)
+        
+        let resultAttributes = [
+            NSAttributedString.Key.font: AppFont.SFPro.semibold(size: 18)
+        ]
+        
+        let result = NSMutableAttributedString(string: template, attributes: resultAttributes)
+        result.replaceCharacters(in: (result.string as NSString).range(of: "#PRICE#"), with: priceValue)
+
         if let discountSubscription = self.discountSubscription {
             guard let discountPrice = discountSubscription.localizedPrice else {
                 return NSAttributedString()
             }
-            withPrices = withPrices.replacingOccurrences(of: "#DISCOUNT_PRICE#", with: discountPrice)
+
+            let discountPriceRange = (result.string as NSString).range(of: "#DISCOUNT_PRICE#")
+            guard discountPriceRange.location != NSNotFound else {
+                return NSAttributedString()
+            }
+            result.replaceCharacters(in: discountPriceRange, with: discountPrice)
         }
-        
-        var result = NSMutableAttributedString(string: withPrices)
-        #warning("Not implemented markup!")
-        //TODO: implement markup
         return result
     }