chore: week 2 assignment

code/src/main.rs

@@ -4,6 +4,16 @@ mod week_2;
 // entry point to run all topics covered
 fn main() {
     // call functions from session_3 modules
+    println!("Task 1:");
+    week_2::task_1::main();
+
+    println!("\nTask 2:");
+    week_2::task_2::main();
+
+    println!("\nTask 3:");
+    week_2::task_3::main();
+
+    println!("\nOther topics:");
     week_2::function::run();
     week_2::loops::run();
     week_2::primitive_types::run();

code/src/week_2/mod.rs

@@ -3,4 +3,8 @@ pub mod function;
 pub mod loops;
 pub mod primitive_types;
 pub mod slices;
-pub mod variables;
+pub mod variables;
+
+pub mod task_1;
+pub mod task_2;
+pub mod task_3;

code/src/week_2/task_1.rs

@@ -2,10 +2,18 @@
 fn btc_value_in_usd(btc: f64, rate: f64) -> f64 {
     btc * rate 
 }
+
+fn mine_blocks(limit: u8) {
+    for height in 1..=limit {
+        println!("Mining block #{}", height);
+    }
+}
+
 //main run main
-fn main() {
+pub fn main() {
     let btc = 0.25; //a dream amount
     let rate = 65_000.0; // example rate here 
     let value = btc_value_in_usd(btc, rate);
     println!("{} BTC is worth ${} USD", btc, value);
+    mine_blocks(10);
 }

code/src/week_2/task_2.rs

@@ -1,21 +1,29 @@
+use core::time;
+
 fn mine_blocks(limit: u8) {
     let mut difficulty = 1;
 
     for height in 1..=limit {
         println!("Mining block #{}", height);
 
-        // Simulate difficulty
-        while difficulty < 3 {
+        let time_to_mine =  difficulty * 1000;
+
+        while difficulty < 5 {
             println!("Simulating difficulty level {}", difficulty);
-            difficulty += 1; // the number of starting zero's
+            // Simulate mining time
+            std::thread::sleep(std::time::Duration::from_millis(time_to_mine));
+            break;
         }
 
         if height % 5 == 0 {
             println!("Checkpoint reached");
         }
+
+        difficulty += 1; 
+
     }
 }
 
-fn main() {
-    mine_blocks(10);
+pub fn main() {
+    mine_blocks(21);
 }

code/src/week_2/task_3.rs

@@ -12,25 +12,15 @@ fn get_rpc_url(network: &Network) -> &str {
     }
 }
 
-fn print_network_details(network: &Network) {
-    match network {
-        Network::Mainnet => println!("This is the main Bitcoin network."),
-        Network::Testnet => println!("This is the test Bitcoin network."),
-        Network::Regtest => println!("This is the regtest Bitcoin network."),
-    }
-}
-
-fn main() {
-    let network = Network::Regtest;
+pub fn main() {
 
-    print_network_details(&network);
-    println!("RPC URL: {}", get_rpc_url(&network));
-    let network = Network::Mainnet;
+    let mut network = Network::Regtest;
+    println!("Net: {}", get_rpc_url(&network));
 
-    print_network_details(&network);
-    println!("RPC URL: {}", get_rpc_url(&network));
-    let network = Network::Testnet;
+    network = Network::Mainnet;
+    println!("Net: {}", get_rpc_url(&network));
 
-    print_network_details(&network);
-    println!("RPC URL: {}", get_rpc_url(&network));
+    network = Network::Testnet;
+    println!("Net: {}", get_rpc_url(&network));
+
 }