better file previews

backend/src/fs/mod.rs

@@ -5,7 +5,7 @@ pub use file::*;
 
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub enum FileType {
     File,
@@ -17,10 +17,22 @@ pub enum FileType {
 pub struct DirectoryEntry {
     name: String,
     file_type: FileType,
+    mime_type: Option<String>,
 }
 
 impl DirectoryEntry {
     pub fn new(name: String, file_type: FileType) -> Self {
-        Self { name, file_type }
+        let mime_type = match name.split("/").last() {
+            Some(last) if last.contains(".") => {
+                mime_guess::from_path(&name).first_raw().map(str::to_owned)
+            }
+            _ => None,
+        };
+
+        Self {
+            name,
+            file_type,
+            mime_type,
+        }
     }
 }