Accept output path argument and create batch subdirectory

src/main.rs

@@ -158,24 +158,19 @@ struct CustomerTemplate {
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let args: Vec<String> = env::args().collect();
 
-    if args.len() != 2 {
-        eprintln!("Användning: {} <csv-fil>", args[0]);
+    if args.len() != 3 {
+        eprintln!("Användning: {} <csv-fil> <utdatakatalog>", args[0]);
         std::process::exit(1);
     }
 
     let input_path = Path::new(&args[1]);
+    let base_output_dir = Path::new(&args[2]);
 
     if !input_path.exists() {
         eprintln!("Fel: Filen hittades inte: {:?}", input_path);
         std::process::exit(1);
     }
 
-    let output_dir = input_path.parent().unwrap_or(Path::new("."));
-
-    if !output_dir.exists() {
-        fs::create_dir_all(output_dir)?;
-    }
-
     let batch = read_csv_file(input_path)?;
     println!(
         "Laddade {} transaktioner från {}",
@@ -183,6 +178,11 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         batch.filename
     );
 
+    let batch_number = batch.filename.trim_end_matches(".csv");
+    let output_dir = base_output_dir.join(batch_number);
+
+    fs::create_dir_all(&output_dir)?;
+
     let first_date = batch.transactions.first().map(|t| t.date).unwrap();
     let last_date = batch.transactions.last().map(|t| t.date).unwrap();
     let period = format!(