contents of zip

scripts/initial_heights_obtained.js

@@ -0,0 +1,132 @@
+// Use strict
+"use strict";
+
+
+// Classes
+
+// Initial heights obtained class
+class InitialHeightsObtained {
+
+	// Public
+	
+		// Constructor
+		constructor(node) {
+		
+			// Create database
+			Database.createDatabase(function(database, currentVersion, databaseTransaction) {
+			
+				// Create or get initial heights obtained object store
+				var initialHeightsObtainedObjectStore = (currentVersion === Database.NO_CURRENT_VERSION) ? database.createObjectStore(InitialHeightsObtained.OBJECT_STORE_NAME, {
+				
+					// Key path
+					"keyPath": [
+					
+						// Wallet type
+						Database.toKeyPath(InitialHeightsObtained.DATABASE_WALLET_TYPE_NAME),
+						
+						// Network type
+						Database.toKeyPath(InitialHeightsObtained.DATABASE_NETWORK_TYPE_NAME)
+					]
+					
+				}) : databaseTransaction.objectStore(InitialHeightsObtained.OBJECT_STORE_NAME);
+			});
+		}
+		
+		// Get obtained
+		getObtained() {
+		
+			// Return promise
+			return new Promise(function(resolve, reject) {
+			
+				// Return getting the initial heights obtained with the wallet type and network type in the database
+				return Database.getResults(InitialHeightsObtained.OBJECT_STORE_NAME, 0, 1, Database.NO_INDEX, IDBKeyRange.only([
+				
+					// Wallet type
+					Consensus.getWalletType(),
+					
+					// Network type
+					Consensus.getNetworkType(),
+					
+				])).then(function(results) {
+				
+					// Check if initial heights were obtained
+					if(results["length"] !== 0) {
+					
+						// Resolve true
+						resolve(true);
+					}
+					
+					// Otherwise
+					else {
+					
+						// Resolve false
+						resolve(false);
+					}
+				
+				// Catch errors
+				}).catch(function(error) {
+				
+					// Reject error
+					reject("The database failed.");
+				});
+			});
+		}
+		
+		// Set obtained
+		setObtained() {
+		
+			// Return promise
+			return new Promise(function(resolve, reject) {
+			
+				// Save initial heights obtained for the wallet type and network type in the database
+				Database.saveResults(InitialHeightsObtained.OBJECT_STORE_NAME, [{
+							
+					// Wallet type
+					[Database.toKeyPath(InitialHeightsObtained.DATABASE_WALLET_TYPE_NAME)]: Consensus.getWalletType(),
+					
+					// Network type
+					[Database.toKeyPath(InitialHeightsObtained.DATABASE_NETWORK_TYPE_NAME)]: Consensus.getNetworkType()
+					
+				}], [], Database.CREATE_NEW_TRANSACTION, Database.STRICT_DURABILITY).then(function() {
+				
+					// Resolve
+					resolve();
+				
+				// Catch errors
+				}).catch(function(error) {
+				
+					// Reject error
+					reject("The database failed.");
+				});
+			});
+		}
+	
+	// Private
+		
+		// Object store name
+		static get OBJECT_STORE_NAME() {
+		
+			// Return object store name
+			return "Initial Heights Obtained";
+		}
+		
+		// Database wallet type name
+		static get DATABASE_WALLET_TYPE_NAME() {
+		
+			// Return database wallet type name
+			return "Wallet Type";
+		}
+		
+		// Database network type name
+		static get DATABASE_NETWORK_TYPE_NAME() {
+		
+			// Return database network type name
+			return "Network Type";
+		}
+}
+
+
+// Main function
+
+// Set global object's initial heights obtained
+globalThis["InitialHeightsObtained"] = InitialHeightsObtained;