adding the codes of systemd-boot api

src/bootctl.py

@@ -1,4 +1,6 @@
 from typing import List
+from os import execv, listdir, path
+import subprocess
 
 
 class Entry:
@@ -7,17 +9,37 @@ class Entry:
         self.entry = entry
 
     def get_icon(self) -> str:
-        pass
+        # Return an icon based on the OS name
+        if "arch" in self.name.lower():
+            return ""  # Arch Linux icon (using Font Awesome)
+        elif "ubuntu" in self.name.lower():
+            return ""  # Ubuntu icon
+        elif "windows" in self.name.lower():
+            return ""  # Windows icon
+        else:
+            return ""  # Generic Linux icon
 
 
-def get_os_list() -> List[Entry] :
-    # TODO: return a List of items
-    return [Entry("test", "test")]
+def get_os_list() -> List[Entry]:
+    entries_dir = "/boot/loader/entries/"
+    entries = []
+
+    if path.exists(entries_dir):
+        for entry_file in listdir(entries_dir):
+            if entry_file.endswith(".conf"):
+                with open(path.join(entries_dir, entry_file), 'r') as f:
+                    first_line = f.readline().strip()
+                    if first_line.startswith("title"):
+                        name = first_line.split(" ", 1)[1]
+                        entries.append(Entry(name, entry_file))
+    return entries
+
 
 def set_boot_entry(entry: Entry):
-    # TODO: set a entry for next boot
-    ...
+    # Set the default boot entry using bootctl
+    subprocess.run(["bootctl", "set-default", entry.entry], check=True)
+
 
 def reboot():
-    # TODO: reboot system
-    ...
+    # Reboot the system
+    subprocess.run(["systemctl", "reboot"], check=True)