feat: add ability to put the themes folder on different paths

src/theme_handler/mod.rs

@@ -0,0 +1 @@
+pub mod theme_path_handler;

src/theme_handler/theme_path_handler.rs

@@ -0,0 +1,31 @@
+//! This module provides the functionality to handle theme folder present on different paths and
+//! provide one appropriate path on which it is present and can be used.
+
+use std::io::Error;
+use std::path::Path;
+
+// ------- Constants --------
+static THEME_DIRECTORY_NAME: &str = "public";
+
+/// A function which returns an appropriate theme directory path checking if the theme
+/// directory exists on that path.
+///
+/// # Error
+///
+/// Returns a `Theme (public) folder not found!!` error if the theme folder is not present under following
+/// paths which are:
+/// 1. `/opt/websurfx` if it not present here then it fallbacks to the next one (2)
+/// 2. Under project folder ( or codebase in other words) if it is not present
+///    here then it returns an error as mentioned above.
+pub fn handle_different_theme_path() -> Result<String, Error> {
+    if Path::new(format!("/opt/websurfx/{}/", THEME_DIRECTORY_NAME).as_str()).exists() {
+        Ok(format!("/opt/websurfx/{}", THEME_DIRECTORY_NAME))
+    } else if Path::new(format!("./{}/", THEME_DIRECTORY_NAME).as_str()).exists() {
+        Ok(format!("./{}", THEME_DIRECTORY_NAME))
+    } else {
+        Err(Error::new(
+            std::io::ErrorKind::NotFound,
+            "Themes (public) folder not found!!",
+        ))
+    }
+}