Use alternative image url if needed for coins in widgets

Author: esen

UnstoppableWallet/Widget/Misc/ApiProvider.swift

@@ -24,7 +24,7 @@ class ApiProvider {
     func topCoins(limit: Int) async throws -> [Coin] {
         let parameters: Parameters = [
             "limit": limit,
-            "fields": "uid,name,code",
+            "fields": "uid,name,code,image",
             "order_by_rank": "true",
         ]
 
@@ -48,7 +48,7 @@ class ApiProvider {
     func coinWithPrice(uid: String, currencyCode: String) async throws -> Coin {
         let parameters: Parameters = [
             "uids": uid,
-            "fields": "uid,name,code,price,price_change_24h,price_change_1d",
+            "fields": "uid,name,code,price,price_change_24h,price_change_1d,image",
             "currency": currencyCode.lowercased(),
         ]
 
@@ -102,6 +102,7 @@ struct Coin: ImmutableMappable {
     let priceChange1w: Decimal?
     let priceChange1m: Decimal?
     let priceChange3m: Decimal?
+    let imageUrl: String?
 
     init(map: Map) throws {
         uid = try map.value("uid")
@@ -115,6 +116,7 @@ struct Coin: ImmutableMappable {
         priceChange1w = try? map.value("price_change_1w", using: Transform.stringToDecimalTransform)
         priceChange1m = try? map.value("price_change_1m", using: Transform.stringToDecimalTransform)
         priceChange3m = try? map.value("price_change_3m", using: Transform.stringToDecimalTransform)
+        imageUrl = try? map.value("image")
     }
 }
 

UnstoppableWallet/Widget/Misc/Extensions.swift

@@ -2,13 +2,13 @@ import SwiftUI
 
 extension Coin {
     var image: Image? {
-        let iconUrl = "https://cdn.blocksdecoded.com/coin-icons/32px/\(uid)@3x.png"
-
-        guard let url = URL(string: iconUrl) else { return nil }
-        guard let data = try? Data(contentsOf: url) else { return nil }
-        guard let uiImage = UIImage(data: data) else { return nil }
-
-        return Image(uiImage: uiImage)
+        do {
+            let iconUrl = "https://cdn.blocksdecoded.com/coin-icons/32px/\(uid)@3x.png"
+            return try image(url: iconUrl)
+        } catch {
+            guard let alternativeUrl = imageUrl else { return nil }
+            return try? image(url: alternativeUrl)
+        }
     }
 
     func formattedPrice(currency: Currency) -> String {
@@ -27,6 +27,14 @@ extension Coin {
         return priceChange >= 0 ? .up : .down
     }
 
+    private func image(url: String) throws -> Image? {
+        guard let url = URL(string: url) else { return nil }
+        let data = try Data(contentsOf: url)
+
+        guard let uiImage = UIImage(data: data) else { return nil }
+        return Image(uiImage: uiImage)
+    }
+
     private func priceChange(timePeriod: WatchlistTimePeriod) -> Decimal? {
         switch timePeriod {
         case .hour24: return priceChange24h