Modularizing further fron-end code, prettyfying sass & pug, added new user_1 image, exhcanged node_module Bootstrap4.5 to a CDN link

Author: migbash

package-lock.json

@@ -8,8 +8,8 @@
 
 /**
  * Class Model for "Block(s)"
- * holds the modal structure for a block in the "blockmatrix"
-
+ * holds the modal structure for a block in 
+ * the "blockmatrix"
  */
 
 public class Block {
@@ -25,6 +25,7 @@ public class Block {
     private long timeStamp;                                           // number of milliseconds since 1/1/1970
     private int nonce;                                                // first number a blockchain miner needs to discover before solving for a block in the blockchain
     private boolean genesis;                                          // whether or not this block is genesis block, by default it is 'FALSE'
+    private static int difficulty = 5;                                // blockchain mining difficulty (more higher = more difficult)
 
     // __________________
     // Class Constructors
@@ -49,8 +50,15 @@ public String calculate_Block_Hash() {
     }
 
     public void mine_Block() {
-        merkleRoot = StringUtil.getMerkleRoot(transactions);
-        hash = calculate_Block_Hash();
+        String target = new String(new char[difficulty]).replace('\0', '0'); // Create a string with difficulty * "0" 
+        
+        merkleRoot = StringUtil.getMerkleRoot(transactions);                 // Get the MerkleRoot (Block Hash)
+
+        while(!hash.substring(0, difficulty).equals(target)) {               // Infinite while loop until the hash is found
+            nonce++;
+            hash = calculate_Block_Hash();
+        }
+
         System.out.println("Block Mined: " + hash);
     }
 

src/main/java/blockmatrix/blockchain/Block.java

@@ -142,6 +142,7 @@ public void setUpSecurity() {
     }
 
     public Boolean is_Matrix_Valid() {
+        
         // sees if our matrix has maintained its security, or if it has been tampered with
         Block currentBlock;                                                                          // ..
         HashMap<String, Transaction_Output> tempUTXOs = new HashMap<>();                             // a temporary working list of unspent transactions at a given block state.
@@ -160,7 +161,7 @@ public Boolean is_Matrix_Valid() {
                 return false;
             }
 
-            // check if hash is solved
+            // check if hash is solved (mined)
             // if(!currentBlock.getHash().substring(0, difficulty).equals(hashTarget)) {
             // System.out.println("Block " + i +  " hasn't been mined (first instance of unmined block, there may be more)");
             // return false;
@@ -169,7 +170,7 @@ public Boolean is_Matrix_Valid() {
             // loop through blockchain transactions
             Transaction_Output tempOutput;
 
-            for(int t=0; t <currentBlock.getTransactions().size(); t++) {
+            for(int t=0; t < currentBlock.getTransactions().size(); t++) {
                 Transaction currentTransaction = currentBlock.getTransactions().get(t);
 
                 if(!currentTransaction.verify_Transaction_Signature()) {

src/main/java/blockmatrix/blockchain/BlockMatrix.java

@@ -55,7 +55,7 @@ public static void main(String[] args) {
 
         bm.add_Block(block2);                                                                                                   // Add our block with transactions to the BlockMatrix
 
-        bm.clear_Info_In_Transaction(2, 1);                                                                                     // Clear Transaction Info. passed along in the BlockNumber: 2 & Transaction Number: 1
+        // bm.clear_Info_In_Transaction(2, 1);                                                                                     // Clear Transaction Info. passed along in the BlockNumber: 2 & Transaction Number: 1
 
         block2.print_Block_Transactions();                                                                                      //..
 

src/main/java/blockmatrix/blockchain/MatrixChain_Main.java

@@ -6,6 +6,12 @@
 import java.util.HashMap;
 import java.util.Map;
 
+/**
+ * Class Model for "Wallet"
+ * holds the modal structure for a wallet on
+ * on the blockmatrix;
+ */
+
 public class Wallet {
 
     // __________________
@@ -14,7 +20,7 @@ public class Wallet {
     private PrivateKey privateKey;                                           // 'this' wallet private Key
     private PublicKey publicKey;                                             // 'this' wallet public Key
     private HashMap<String, Transaction_Output> UTXOs = new HashMap<>();     // only UTXOs owned by this wallet.
-    private ArrayList<Transaction> transaction_list = new ArrayList<>();          // only transactions made by this wallet.
+    private ArrayList<Transaction> transaction_list = new ArrayList<>();     // only transactions made by this wallet.
 
     // __________________
     // Class Constructors

src/main/java/blockmatrix/blockchain/Wallet.java

@@ -17,6 +17,7 @@
 import blockmatrix.blockchain.BlockMatrix;
 
 @Controller
+@RequestMapping("/node")
 public class Node_Controller {
 
     // __________________
@@ -26,7 +27,7 @@ public class Node_Controller {
     private BlockMatrix new_blockMatrix;
 
     /**
-     * Registerin the nodes onto the network
+     * Registering the nodes onto the network
      */
 
     @RequestMapping(value = "/register", method = RequestMethod.POST)

src/main/java/blockmatrix/controllers/Node_Controller.java

@@ -3,6 +3,7 @@
 import blockmatrix.blockchain.BlockMatrix;
 import blockmatrix.blockchain.StringUtil;
 import blockmatrix.blockchain.Wallet;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
@@ -35,7 +36,7 @@ public class Wallet_Controller {
 
     /**
      * _________________
-     * Blockchain Data (Explorer)
+     * Blockchain Data (Explorer) @GetMapping
      * 
      * Returns ->
      * 
@@ -64,7 +65,7 @@ public String block_explorer(Model model) {
 
     /**
      * __________________
-     * User Dashboard (UI/UX)
+     * User Dashboard (UI/UX) @GetMapping
      * 
      * Returns ->
      *