provider and user connection management

src/utils/string_utils.rs

@@ -1,3 +1,5 @@
+use rand::Rng;
+
 // other implementations like calculating text_distance on all titles took too much time
 // we keep it now as simple as possible and less memory intensive.
 pub fn get_title_group(text: &str) -> String {
@@ -41,3 +43,32 @@ pub fn get_trimmed_string(value: &Option<String>) -> Option<String> {
     }
     None
 }
+
+pub fn generate_random_string(length: usize) -> String {
+    let charset = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    let mut rng = rand::rng();
+
+    let random_string: String = (0..length)
+        .map(|_| {
+            let idx = rng.random_range(0..charset.len());
+            charset[idx] as char
+        })
+        .collect();
+
+    random_string
+}
+
+#[cfg(test)]
+mod test {
+    use std::collections::HashSet;
+    use crate::utils::string_utils::generate_random_string;
+
+    #[test]
+    fn test_generate_random_string() {
+        let mut strings = HashSet::new();
+        for _i in 0..100 {
+            strings.insert(generate_random_string(5));
+        }
+        assert_eq!(strings.len(), 100);
+    }
+}