Created CSV Writer Tool

project/src/writer.rs

@@ -0,0 +1,59 @@
+// Libraries
+use super::action::Transaction;
+
+use std::io::Result;
+
+use csv;
+
+// Structures
+pub struct Writer {
+    transactions: Vec<Transaction>,
+    path: String,
+}
+
+// Implementations
+impl Writer {
+    // Constructors
+    pub fn new(transactions: &Vec<Transaction>, path: String) -> Self {
+        // Creating own list of transactions
+        let mut self_transactions: Vec<Transaction> = Vec::new();
+        for transaction in transactions {
+            self_transactions.push(Transaction {
+                description: transaction.description.clone(),
+                amount: transaction.amount.clone(),
+                date: transaction.date.clone(),
+            });
+        }
+
+        // Returning result
+        Self {
+            transactions: self_transactions,
+            path,
+        }
+    }
+
+    // Functions
+    pub fn save(&self) -> Result<()> {
+        // Creating a file based on path
+        let mut writer = csv::Writer::from_path(&self.path)?;
+
+        // Creating the Header
+        writer.write_record(&["Date", "Description", "Amount"])?;
+
+        // Writing all transactions
+        for transaction in &self.transactions {
+            // Creating a record
+            writer.write_record(&[
+                transaction.date.clone(),
+                transaction.description.clone(),
+                transaction.amount.clone().to_string(),
+            ])?;
+        }
+
+        // Flush writer
+        writer.flush()?;
+
+        // Ok!!
+        Ok(())
+    }
+}