filename generation fix (#82)

Reviewed-on: #82
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

Cargo.lock

@@ -149,7 +149,7 @@ checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
 
 [[package]]
 name = "icarus_models"
-version = "0.8.0"
+version = "0.8.3"
 dependencies = [
  "josekit",
  "rand",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "icarus_models"
-version = "0.8.0"
+version = "0.8.3"
 edition = "2024"
 rust-version = "1.90"
 description = "models used for the icarus project"

README.md

@@ -1,2 +1,3 @@
-A library containing commonly used models and functions that is used throughout
-icarus projects. This reduces the amount of duplicated code without a benefit.
+A library containing commonly used structs, functions, enums, constants and other code
+that is used throughout the icarus projects. Code from this library serves as the model
+for other projects in the icarus project.

src/constants.rs

@@ -12,3 +12,9 @@ pub mod file_extensions {
         pub const PNGEXTENSION: &str = ".png";
     }
 }
+
+pub mod error {
+    pub const DIRECTORY_NOT_INITIALIZED: &str = "Directory has not been initialized";
+    pub const FILENAME_NOT_INITIALIZED: &str = "Filename has not bee initialized";
+    pub const LAST_CHARACTER_IN_DIRECTORY: &str = "Could not access last character of directory";
+}

src/coverart.rs

@@ -1,7 +1,10 @@
 use std::io::Write;
 
+use rand::Rng;
 use serde::{Deserialize, Serialize};
 
+const FILENAME_LENGTH: i32 = 16;
+
 #[derive(Clone, Debug, Default, Deserialize, Serialize, utoipa::ToSchema)]
 pub struct CoverArt {
     pub id: uuid::Uuid,
@@ -65,30 +68,59 @@ impl CoverArt {
     /// Gets the path of the CoverArt
     pub fn get_path(&self) -> Result<String, std::io::Error> {
         if self.directory.is_empty() {
-            return Err(std::io::Error::other("Directory has not been initialized"));
+            return Err(std::io::Error::other(
+                crate::constants::error::DIRECTORY_NOT_INITIALIZED,
+            ));
         } else if self.filename.is_empty() {
-            return Err(std::io::Error::other("Filename has not bee initialized"));
+            return Err(std::io::Error::other(
+                crate::constants::error::FILENAME_NOT_INITIALIZED,
+            ));
         }
 
         let directory = &self.directory;
         let last_index = directory.len() - 1;
 
-        if let Some(character) = directory.chars().nth(last_index) {
-            let buffer = if character != '/' {
-                directory.clone() + "/"
-            } else {
-                directory.clone()
-            };
-
-            Ok(buffer + &self.filename.clone())
-        } else {
-            Err(std::io::Error::other(
-                "Could not access last character of directory",
-            ))
+        match crate::util::concatenate_path(directory, &self.filename, last_index) {
+            Ok(path) => Ok(path),
+            Err(err) => Err(err),
         }
     }
 }
 
+/// Generates filename for a CoverArt
+pub fn generate_filename(typ: crate::types::CoverArtTypes, randomize: bool) -> String {
+    let file_extension = match typ {
+        crate::types::CoverArtTypes::PngExtension => {
+            String::from(crate::constants::file_extensions::image::PNGEXTENSION)
+        }
+        crate::types::CoverArtTypes::JpegExtension => {
+            String::from(crate::constants::file_extensions::image::JPEGEXTENSION)
+        }
+        crate::types::CoverArtTypes::JpgExtension => {
+            String::from(crate::constants::file_extensions::image::JPGEXTENSION)
+        }
+    };
+
+    if randomize {
+        let mut filename: String = String::from("coverart-");
+        let some_chars: String = String::from("abcdefghij0123456789");
+        let some_chars_length = some_chars.len();
+        let mut rng = rand::rng();
+
+        for _ in 0..FILENAME_LENGTH {
+            let index = rng.random_range(0..=some_chars_length);
+            let rando_char = some_chars.chars().nth(index);
+
+            if let Some(c) = rando_char {
+                filename.push(c);
+            }
+        }
+        filename + &file_extension
+    } else {
+        "coverart-output".to_string() + &file_extension
+    }
+}
+
 pub mod io {
     use std::io::Read;
 

src/lib.rs

@@ -7,6 +7,7 @@ pub mod song;
 pub mod token;
 pub mod types;
 pub mod user;
+pub mod util;
 
 pub mod init {
     pub fn is_id_valid(num: &i32) -> bool {

src/song.rs

@@ -69,28 +69,24 @@ impl Song {
         }
     }
 
+    /// Gets the path of a Song
     pub fn song_path(&self) -> Result<String, std::io::Error> {
         if self.directory.is_empty() {
-            return Err(std::io::Error::other("Directory has not been initialized"));
+            return Err(std::io::Error::other(
+                crate::constants::error::DIRECTORY_NOT_INITIALIZED,
+            ));
         } else if self.filename.is_empty() {
-            return Err(std::io::Error::other("Filename has not bee initialized"));
+            return Err(std::io::Error::other(
+                crate::constants::error::FILENAME_NOT_INITIALIZED,
+            ));
         }
 
         let directory = &self.directory;
         let last_index = directory.len() - 1;
 
-        if let Some(character) = directory.chars().nth(last_index) {
-            let buffer: String = if character != '/' {
-                directory.clone() + "/"
-            } else {
-                directory.clone()
-            };
-
-            Ok(buffer + &self.filename.clone())
-        } else {
-            Err(std::io::Error::other(
-                "Could not access last character of directory",
-            ))
+        match crate::util::concatenate_path(directory, &self.filename, last_index) {
+            Ok(path) => Ok(path),
+            Err(err) => Err(err),
         }
     }
 
@@ -129,14 +125,12 @@ impl Song {
     }
 }
 
-/// Generates a filename. In order to save a song to the filesystem, the song must have
-/// a directory and filename
+/// Generates a filename. In order to save a song to the filesystem
 pub fn generate_filename(typ: types::MusicTypes, randomize: bool) -> String {
     let file_extension = match typ {
         types::MusicTypes::DefaultMusicExtension => {
             String::from(constants::file_extensions::audio::DEFAULTMUSICEXTENSION)
         }
-
         types::MusicTypes::WavExtension => {
             String::from(constants::file_extensions::audio::WAVEXTENSION)
         }
@@ -149,12 +143,13 @@ pub fn generate_filename(typ: types::MusicTypes, randomize: bool) -> String {
     };
 
     if randomize {
-        let mut filename: String = String::new();
+        let mut filename: String = String::from("track-");
         let some_chars: String = String::from("abcdefghij0123456789");
+        let some_chars_length = some_chars.len();
         let mut rng = rand::rng();
 
         for _ in 0..FILENAME_LENGTH {
-            let index = rng.random_range(0..=19);
+            let index = rng.random_range(0..=some_chars_length);
             let rando_char = some_chars.chars().nth(index);
 
             if let Some(c) = rando_char {

src/types.rs

@@ -1,6 +1,14 @@
+#[derive(Debug)]
 pub enum MusicTypes {
     DefaultMusicExtension,
     WavExtension,
     FlacExtension,
     MPThreeExtension,
 }
+
+#[derive(Debug)]
+pub enum CoverArtTypes {
+    PngExtension,
+    JpegExtension,
+    JpgExtension,
+}

src/util/mod.rs

@@ -0,0 +1,19 @@
+pub fn concatenate_path(
+    directory: &str,
+    filename: &str,
+    last_index: usize,
+) -> Result<String, std::io::Error> {
+    if let Some(character) = directory.chars().nth(last_index) {
+        let buffer: String = if character != '/' {
+            format!("{directory}/")
+        } else {
+            String::from(directory)
+        };
+
+        Ok(format!("{buffer}{filename}"))
+    } else {
+        Err(std::io::Error::other(
+            crate::constants::error::LAST_CHARACTER_IN_DIRECTORY,
+        ))
+    }
+}