solana-contrib: Add support for solscan link generation for `Transact…

…ionReceipt` (#664)

* add solscan link for explorer and rename generateSolanaExplorerLink to generateTXLink

* fix: build error with default return string

* throw an error instead of default string

* put prev explorer link method again

packages/solana-contrib/src/transaction/TransactionReceipt.ts

@@ -19,6 +19,11 @@ export type TransactionLike =
   | PendingTransaction
   | TransactionReceipt;
 
+export enum ExplorerType {
+  SOLANA_EXPLORER = "solana-explorer",
+  SOLSCAN = "solscan",
+}
+
 /**
  * Confirms a transaction, returning its receipt.
  *
@@ -97,6 +102,20 @@ export class TransactionReceipt {
    * @returns
    */
   generateSolanaExplorerLink(cluster: Cluster = "mainnet-beta"): string {
-    return `https://explorer.solana.com/tx/${this.signature}?cluster=${cluster}`;
+    return this.generateTXLink(cluster);
+  }
+
+  generateTXLink(
+    cluster: Cluster = "mainnet-beta",
+    explorerType: string = ExplorerType.SOLANA_EXPLORER
+  ): string {
+    switch (explorerType) {
+      case ExplorerType.SOLANA_EXPLORER:
+        return `https://explorer.solana.com/tx/${this.signature}?cluster=${cluster}`;
+      case ExplorerType.SOLSCAN:
+        return `https://solscan.io/tx/${this.signature}?cluster=${cluster}`;
+      default:
+        throw new Error(`Explorer type ${explorerType} is not supported.`);
+    }
   }
 }