Add rust implementation

src/services/filename_getter.rs

@@ -0,0 +1,77 @@
+use translit::{gost779b_ru, CharsMapping, Transliterator};
+
+use super::book_library::types::{BookAuthor, Book};
+
+pub fn get_author_short_name(author: BookAuthor) -> String {
+    let mut parts: Vec<String> = vec![];
+
+    if author.last_name.len() != 0 {
+        parts.push(author.last_name);
+    }
+
+    if author.first_name.len() != 0 {
+        let first_char = author.first_name.chars().next().unwrap();
+        parts.push(first_char.to_string());
+    }
+
+    if author.middle_name.len() != 0 {
+        let first_char = author.middle_name.chars().next().unwrap();
+        parts.push(first_char.to_string());
+    }
+
+    parts.join(" ")
+}
+
+pub fn get_filename_by_book(book: &Book, file_type: &str, force_zip: bool) -> String {
+    let book_id = book.remote_id;
+    let mut filename_parts: Vec<String> = vec![];
+
+    let file_type_: String = if let "fb2zip" = file_type {
+        "fb2.zip".to_string()
+    } else if force_zip {
+        format!("{file_type}.zip")
+    } else {
+        file_type.to_string()
+    };
+
+    filename_parts.push(
+        book.authors
+            .clone()
+            .into_iter()
+            .map(|author| get_author_short_name(author))
+            .collect::<Vec<String>>()
+            .join("_-_"),
+    );
+    filename_parts.push(book.title.trim().to_string());
+
+    let transliterator = Transliterator::new(gost779b_ru());
+    let mut filename_without_type = transliterator.convert(&filename_parts.join(""), false);
+
+    for char in "(),….’!\"?»«':".get(..) {
+        filename_without_type = filename_without_type.replace(char, "");
+    }
+
+    let replace_char_map: CharsMapping = [
+        ("—", "-"),
+        ("/", "_"),
+        ("№", "N"),
+        (" ", "_"),
+        ("–", "-"),
+        ("á", "a"),
+        (" ", "_"),
+        ("'", ""),
+        ("`", ""),
+    ]
+    .iter()
+    .cloned()
+    .collect();
+
+    let replace_transliterator = Transliterator::new(replace_char_map);
+    let normal_filename = replace_transliterator.convert(&filename_without_type, false);
+
+    let right_part = format!(".{book_id}.{file_type_}");
+    let normal_filename_slice = std::cmp::min(64 - right_part.len() - 1, normal_filename.len());
+    let left_part = normal_filename.get(..normal_filename_slice).unwrap();
+
+    format!("{left_part}{right_part}")
+}