1 files changed, 34 insertions, 0 deletions
diff --git a/src/utils.rs b/src/utils.rs
new file mode 100644
index 0000000..ab4876f
--- /dev/null
+++ b/src/utils.rs
@@ -0,0 +1,34 @@
+use std::fs;
+use std::path::PathBuf;
+use std::collections::BTreeSet;
+use std::env;
+
+
+pub fn already_downloaded(dir: &str) -> BTreeSet<String> {
+    let mut result = BTreeSet::new();
+
+    let mut path = get_podcast_dir();
+    path.push(dir);
+
+    if let Ok(entries) = fs::read_dir(path) {
+        for entry in entries {
+            if let Ok(entry) = entry {
+                match entry.file_name().into_string() {
+                    Ok(val) => {
+                        result.insert(String::from(val.trim_right_matches(".mp3")));
+                    }
+                    Err(err) => {
+                        println!("OsString: {:?} couldn't be converted to String", err);
+                    }
+                }
+            }
+        }
+    }
+    result
+}
+
+pub fn get_podcast_dir() -> PathBuf {
+    let mut path = env::home_dir().unwrap();
+    path.push("Podcasts");
+    path
+}