feat(network): add localStorage provider

Author: kodemon

packages/sado-sdk/src/Network/Network.ts

@@ -29,4 +29,4 @@ export type NetworkProvider = {
   get(): Network;
 };
 
-export type Network = "mainnet" | "testnet" | "regtest";
+export type Network = (typeof VALID_NETWORK)[number];

packages/sado-sdk/src/Network/Providers/LocalStorageProvider.ts

@@ -0,0 +1,40 @@
+import { DEFAULT_NETWORK, isValidNetwork, Network, NetworkProvider } from "../Network";
+
+export class LocalStorageProvider implements NetworkProvider {
+  /**
+   * Instantiates a new LocalStorageProvider instance.
+   *
+   * @param value - Initial network value.
+   */
+  constructor(value?: string) {
+    if (value !== undefined) {
+      if (!isValidNetwork(value)) {
+        throw new Error(`Invalid network: ${value}`);
+      }
+      this.set(value);
+    }
+  }
+
+  get storage() {
+    const storage = globalThis.localStorage;
+    if (storage === undefined) {
+      throw new Error("LocalStorageProvider > could not retrieve storage, globalThis.localStorage is not available");
+    }
+    return storage;
+  }
+
+  set(value: Network) {
+    this.storage.setItem("network", value);
+  }
+
+  get(): Network {
+    const network = this.storage.getItem("network");
+    if (network !== null) {
+      if (isValidNetwork(network)) {
+        return network;
+      }
+      this.storage.removeItem("network");
+    }
+    return DEFAULT_NETWORK;
+  }
+}

packages/sado-sdk/src/Network/Providers/MemoryProvider.ts

@@ -1,14 +1,19 @@
-import { DEFAULT_NETWORK, isValidNetwork, Network } from "../Network";
+import { DEFAULT_NETWORK, isValidNetwork, Network, NetworkProvider } from "../Network";
 
-export class NetworkMemoryProvider {
+export class NetworkMemoryProvider implements NetworkProvider {
   #value: Network = DEFAULT_NETWORK;
 
+  /**
+   * Instantiates a new NetworkMemoryProvider instance.
+   *
+   * @param value - Initial network value.
+   */
   constructor(value?: string) {
     if (value !== undefined) {
       if (!isValidNetwork(value)) {
         throw new Error(`Invalid network: ${value}`);
       }
-      this.#value = value;
+      this.set(value);
     }
   }
 

packages/sado-sdk/src/Network/index.ts

@@ -1,2 +1,3 @@
 export * from "./Network";
+export { LocalStorageProvider } from "./Providers/LocalStorageProvider";
 export { NetworkMemoryProvider } from "./Providers/MemoryProvider";