docs: update for v1.3.0

Introduces the `godeez download track <ID>` command, allowing users to download individual songs directly.

Single tracks are saved into a "Singles" folder by default to keep them organized. The README has been updated with documentation and examples for this new functionality.

CHANGELOG.md

@@ -5,18 +5,27 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.0] - 2025-09-11
+
+### Added
+- Add new `track` command to download individual songs.
+- Add `--genre` flag to fetch and embed genre information into file metadata tags.
+
+### Fixed
+- Handle empty media resources gracefully to prevent crashes.
+
 ## [1.2.0] - 2025-08-18
 
 ### Added
-- New `artist` command to download an artist’s top tracks.
-- `--limit` flag for the `artist` command to restrict the number of tracks.
-- `--strict` flag for downloads: fail if the requested quality is unavailable.
+- Add new `artist` command to download an artist’s top tracks.
+- Add `--limit` flag for the `artist` command to restrict the number of tracks.
+- Add `--strict` flag for downloads: fail if the requested quality is unavailable.
 
 ### Changed
-- Default download quality is now **MP3 320kbps**.
+- Set default download quality to **MP3 320kbps**.
 
 ### Removed
-- The `--quality=best` option. Fallback to lower quality is now the **default behavior**; use the new `--strict` flag if you want to prevent fallback.
+- Remove `--quality=best` option. Fallback to lower quality is now the default behavior; use the `--strict` flag to prevent fallback.
 
 ### Fixed
 - Handle error when `SNG_CONTRIBUTORS` metadata is empty.
@@ -24,22 +33,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [1.1.1] - 2025-06-16
 
 ### Fixed
-- Restored ability to download tracks **without a Deezer Premium account** (limited to **MP3 128kbps** for free accounts).
+- Restore ability to download tracks without a Deezer Premium account (limited to **MP3 128kbps** for free accounts).
 
 ## [1.1.0] - 2025-05-19
 
 ### Added
-- Support for downloading full albums and playlists with more than 40 tracks (previous limit removed).
-- Option to fetch and embed **BPM** and **musical key** into metadata tags.
-- New local **database system** (`tracks.db`) to track downloaded files and avoid re-downloading, even if files are renamed or moved.
-- Improved CLI **output formatting** for a cleaner and more informative user experience.
+- Support downloading full albums and playlists with more than 40 tracks (previous limit removed).
+- Fetch and embed **BPM** and **musical key** into metadata tags.
+- Add local **database system** (`tracks.db`) to track downloaded files and avoid re-downloading, even if files are renamed or moved.
+- Improve CLI **output formatting** for a cleaner and more informative user experience.
 
 ### Changed
-- The `.godeez` file in the user’s home directory has been replaced by a `.godeez/` directory.  
-  It now stores both `config.toml` and the internal `tracks.db`.  
-  If you're upgrading from an older version, move your existing config into `.godeez/config.toml`.
-- Simplified `config.toml`: `iv` and `license_token` are no longer required.
-- Cleanup logic: corrupted or incomplete files are now automatically deleted on download failure.
+- Replace the `godeez` file in the user’s home directory with a `.godeez/` directory, which now stores both `config.toml` and `tracks.db`.  
+👉 If upgrading, move your existing config into `.godeez/config.toml`.
+- Simplify `config.toml`: remove the need for `iv` and `license_token`.
+- Automatically delete corrupted or incomplete files on download failure.
 
 ## [1.0.0] - 2024-10-15
 

README.md

@@ -13,32 +13,33 @@ A simple Go tool for downloading music from [Deezer](https://www.deezer.com).
 [Configuration](#configuration) •
 [Usage](#usage) •
 [Contributing](#contributing) •
+[Support](#⭐-support-the-project) •
 [License](#license)
 
 </div>
 
 ## Features
 
-* Download playlists, albums, and artists' top tracks from Deezer
-* Select audio quality: MP3 128kbps, MP3 320kbps (default), or FLAC (⚠️ non-premium accounts are limited to 128kbps)
-* Automatically adds metadata tags to downloaded files
-* Fetch and tag songs with BPM and musical key
-* Smart skip system: avoids re-downloading already existing files using hashes and metadata
-* Cross-platform support (works on Windows, macOS, and Linux)
-* Simple and easy-to-use CLI
+- Download playlists, albums, artists’ top tracks, and individual tracks
+- Choose audio quality: **MP3 128kbps**, **MP3 320kbps** (default), or **FLAC** (⚠️ non‑premium accounts are limited to 128kbps)
+- Automatically embed metadata tags (artist, album, title, artwork, etc.)
+- Fetch and tag songs with **BPM**, **musical key**, and **genre**
+- Skip already-downloaded files using hashes and metadata
+- Support Windows, macOS, and Linux
+- Provide a simple, easy-to-use CLI
 
 ## Installation
 
-To install **GoDeez**, simply download the latest binary for your platform from the Releases page.
+To install **GoDeez**, download the latest binary for your platform from the [Releases](https://github.com/mathismqn/godeez/releases) page.
 
 1. Go to the [Releases](https://github.com/mathismqn/godeez/releases) page.
 2. Download the appropriate binary for your operating system (Windows, macOS, or Linux).
-3. Move the binary to a directory included in $PATH for easy access (optional but recommended).
+3. (Optional) Move the binary to a directory included in `$PATH` for easier access.
 
 Example (Linux/macOS):
 ```bash
 # Move the downloaded binary to /usr/local/bin for easy access from anywhere
-mv godeez-1.2.0-linux-amd64 /usr/local/bin/godeez
+mv godeez-1.3.0-linux-amd64 /usr/local/bin/godeez
 ```
 
 ## Configuration
@@ -46,12 +47,12 @@ mv godeez-1.2.0-linux-amd64 /usr/local/bin/godeez
 The first time you run **GoDeez**, a configuration directory named `.godeez` will be automatically created in your home directory (`$HOME` on Linux/macOS, `%USERPROFILE%` on Windows).
 
 Inside this directory:
-- `config.toml`: main configuration file which contains several important variables that you need to fill out manually
-- `tracks.db`: internal database used to track downloaded files and prevent duplicates
+- `config.toml`: main configuration file you need to edit manually
+- `tracks.db`: internal database used to track downloads and avoid duplicates
 
 ### Steps to configure
 
-1. Run the application for the first time: this creates the `.godeez` directory and the `config.toml` file inside it.
+1. Run the application once: this creates the `.godeez` directory and the `config.toml` file.
 2. Edit the `config.toml` file with a text editor to set the required values.
 
 ### Variables to configure
@@ -78,7 +79,6 @@ Here are the key variables you need to set in `config.toml`:
 
 ### Example
 
-Here's an example of a minimal `config.toml` you can customize:
 ```toml
 # ~/.godeez/config.toml
 
@@ -91,7 +91,8 @@ output_dir = ''  # optional
 
 ### CLI Overview
 
-When you run `godeez` without any additional commands, you’ll see a general help menu:
+Running `godeez` without arguments shows the help menu:
+
 ```bash
 GoDeez is a tool to download music from Deezer
 
@@ -109,9 +110,9 @@ Flags:
 
 Use "godeez [command] --help" for more information about a command.
 ```
-This provides an overview of the available commands and flags.
 
-To download music, you need to use the download command. Here’s how the CLI looks when you run `godeez download`:
+### Download commands
+
 ```bash
 Download songs from Deezer
 
@@ -122,10 +123,12 @@ Available Commands:
   album       Download songs from an album
   artist      Download top songs from an artist
   playlist    Download songs from a playlist
+  track       Download a single track
 
 Flags:
       --bpm                fetch BPM/key and add to file tags
       --config string      config file (default ~/.godeez/config.toml)
+      --genre              fetch genre and add to file tags
   -h, --help               help for download
   -q, --quality string     download quality [mp3_128, mp3_320, flac] (default "mp3_320")
       --strict             fail the song download if the quality is not available
@@ -134,13 +137,40 @@ Flags:
 Use "godeez download [command] --help" for more information about a command.
 ```
 
+### Examples
+
+```bash
+# Download an album
+godeez download album 12345678
+
+# Download a playlist
+godeez download playlist 87654321
+
+# Download top tracks from an artist
+godeez download artist 11223344 --limit 5
+
+# Download a single track
+godeez download track 98765432
+
+# Download with specific quality, BPM and genre data
+godeez download track 98765432 --quality flac --bpm --genre
+```
+
 ## Contributing
 
 Contributions help make **GoDeez** a better tool for everyone, and any help is greatly appreciated.
 Whether it’s a bug fix, a new feature, or improving documentation, your input is valuable.
 
 If you have an idea for improvement, feel free to fork the repository and submit a pull request. You can also open an issue if you spot a bug or have a feature suggestion.
-Every bit of support counts, so don’t forget to give the project a star if you enjoy using it. Thank you for helping make this project better!
+
+## ⭐ Support the Project
+
+If **GoDeez** helps you enjoy your music collection, please consider giving it a star!
+
+**Why star us?**
+- Helps more music lovers discover the project  
+- Shows appreciation for the work and motivates development
+- Takes just one click but means the world to us!
 
 ## License
 
@@ -148,4 +178,4 @@ This project is licensed under the MIT License. See the [LICENSE](https://github
 
 ---
 
-> ⚠️ This tool is provided for educational and personal use only. Please ensure your usage complies with Deezer’s Terms of Service.
+> ⚠️ This tool is provided for educational and personal use only. Please ensure your usage complies with Deezer’s Terms of Service.

cmd/download.go

@@ -29,12 +29,14 @@ func init() {
 	downloadCmd.PersistentFlags().StringVarP(&opts.Quality, "quality", "q", "mp3_320", "download quality [mp3_128, mp3_320, flac]")
 	downloadCmd.PersistentFlags().DurationVarP(&opts.Timeout, "timeout", "t", 2*time.Minute, "timeout for each download (e.g. 10s, 1m, 2m30s)")
 	downloadCmd.PersistentFlags().BoolVar(&opts.BPM, "bpm", false, "fetch BPM/key and add to file tags")
+	downloadCmd.PersistentFlags().BoolVar(&opts.Genre, "genre", false, "fetch genre and add to file tags")
 	downloadCmd.PersistentFlags().BoolVar(&opts.Strict, "strict", false, "fail the song download if the quality is not available")
 
 	downloadCmd.AddCommand(
 		newDownloadCmd("album"),
 		newDownloadCmd("playlist"),
 		newDownloadCmd("artist"),
+		newDownloadCmd("track"),
 	)
 }
 
@@ -77,9 +79,12 @@ func newDownloadCmd(resourceType string) *cobra.Command {
 		},
 	}
 
-	if resourceType == "artist" {
-		cmd.Flags().IntVarP(&opts.Limit, "limit", "l", 10, "number of songs to download")
+	switch resourceType {
+	case "artist":
 		cmd.Short = "Download top songs from an artist"
+		cmd.Flags().IntVarP(&opts.Limit, "limit", "l", 10, "number of songs to download")
+	case "track":
+		cmd.Short = "Download a single track"
 	}
 
 	return cmd

internal/deezer/album.go

@@ -19,6 +19,7 @@ type Album struct {
 			PhysicalReleaseDate string `json:"PHYSICAL_RELEASE_DATE"`
 			Label               string `json:"LABEL_NAME"`
 			ProducerLine        string `json:"PRODUCER_LINE"`
+			Copyright           string `json:"COPYRIGHT"`
 			Duration            string `json:"DURATION"`
 		} `json:"DATA"`
 		Songs struct {

internal/deezer/client.go

@@ -45,6 +45,8 @@ func (c *Client) FetchResource(ctx context.Context, resource Resource, id string
 		payload["alb_id"] = id
 	case *Artist:
 		payload["art_id"] = id
+	case *Track:
+		payload["sng_id"] = id
 	default:
 		return fmt.Errorf("unsupported resource type: %T", r)
 	}
@@ -75,15 +77,17 @@ func (c *Client) FetchResource(ctx context.Context, resource Resource, id string
 		return err
 	}
 
-	if strings.Contains(string(body), `"DATA_ERROR":"playlist::getData"`) {
+	switch {
+	case strings.Contains(string(body), `"DATA_ERROR":"playlist::getData"`):
 		return fmt.Errorf("invalid playlist ID")
-	}
-	if strings.Contains(string(body), `"DATA_ERROR":"album::getData"`) {
+	case strings.Contains(string(body), `"DATA_ERROR":"album::getData"`):
 		return fmt.Errorf("invalid album ID")
-	}
-	if strings.Contains(string(body), `"DATA_ERROR":"artist::getData"`) {
+	case strings.Contains(string(body), `"DATA_ERROR":"artist::getData"`):
 		return fmt.Errorf("invalid artist ID")
+	case strings.Contains(string(body), `"DATA_ERROR":"song::getData"`):
+		return fmt.Errorf("invalid track ID")
 	}
+
 	if strings.Contains(string(body), `"results":{}`) {
 		return fmt.Errorf("unexpected response")
 	}
@@ -137,6 +141,7 @@ func (c *Client) FetchMedia(ctx context.Context, song *Song, quality string) (*M
 
 		return nil, fmt.Errorf("%s", media.Errors[0].Message)
 	}
+
 	if len(media.Data) > 0 && len(media.Data[0].Errors) > 0 {
 		if media.Data[0].Errors[0].Code == 2002 {
 			return nil, fmt.Errorf("invalid track token")
@@ -145,6 +150,10 @@ func (c *Client) FetchMedia(ctx context.Context, song *Song, quality string) (*M
 		return nil, fmt.Errorf("%s", media.Data[0].Errors[0].Message)
 	}
 
+	if len(media.Data) == 0 || len(media.Data[0].Media) == 0 || len(media.Data[0].Media[0].Sources) == 0 {
+		return nil, fmt.Errorf("no sources found")
+	}
+
 	return &media, nil
 }
 
@@ -169,11 +178,7 @@ func (c *Client) FetchCoverImage(ctx context.Context, song *Song) ([]byte, error
 }
 
 func (c *Client) GetMediaStream(ctx context.Context, media *Media, songID string) (io.ReadCloser, error) {
-	url, err := media.GetURL()
-	if err != nil {
-		return nil, err
-	}
-
+	url := media.GetURL()
 	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
 	if err != nil {
 		return nil, err

internal/deezer/media.go

@@ -1,9 +1,5 @@
 package deezer
 
-import (
-	"fmt"
-)
-
 type Media struct {
 	Errors []MediaError `json:"errors"`
 	Data   []struct {
@@ -31,18 +27,10 @@ type Source struct {
 	Provider string `json:"provider"`
 }
 
-func (m *Media) GetURL() (string, error) {
-	if len(m.Data) == 0 || len(m.Data[0].Media) == 0 || len(m.Data[0].Media[0].Sources) == 0 {
-		return "", fmt.Errorf("no media sources found")
-	}
-
-	return m.Data[0].Media[0].Sources[0].URL, nil
+func (m *Media) GetURL() string {
+	return m.Data[0].Media[0].Sources[0].URL
 }
 
-func (m *Media) GetFormat() (string, error) {
-	if len(m.Data) == 0 || len(m.Data[0].Media) == 0 {
-		return "", fmt.Errorf("no media format found")
-	}
-
-	return m.Data[0].Media[0].Format, nil
+func (m *Media) GetFormat() string {
+	return m.Data[0].Media[0].Format
 }

internal/deezer/song.go

@@ -48,9 +48,9 @@ func (s *Song) GetTitle() string {
 	return songTitle
 }
 
-func (s *Song) GetFileName(resourceType string, song *Song, media *Media) string {
+func (s *Song) GetFileName(resourceType, mediaFormat string, song *Song) string {
 	ext := "mp3"
-	if media.Data[0].Media[0].Format == "FLAC" {
+	if mediaFormat == "FLAC" {
 		ext = "flac"
 	}
 	trackNumber := ""
@@ -59,7 +59,7 @@ func (s *Song) GetFileName(resourceType string, song *Song, media *Media) string
 	}
 
 	fileName := fmt.Sprintf("%s%s - %s.%s", trackNumber, s.Artist, s.GetTitle(), ext)
-	fileName, _ = filenamify.Filenamify(fileName, filenamify.Options{})
+	fileName, _ = filenamify.Filenamify(fileName, filenamify.Options{MaxLength: 255})
 
 	return fileName
 }

internal/deezer/track.go

@@ -0,0 +1,77 @@
+package deezer
+
+import (
+	"encoding/json"
+	"fmt"
+	"path"
+	"time"
+
+	"github.com/flytam/filenamify"
+)
+
+type Track struct {
+	Results struct {
+		Data *Song `json:"DATA"`
+	} `json:"results"`
+}
+
+func (t *Track) String() string {
+	if t.Results.Data == nil {
+		return "Track: No data available"
+	}
+
+	duration := "Unknown"
+	if t.Results.Data.Duration != "" {
+		if d, err := time.ParseDuration(t.Results.Data.Duration + "s"); err == nil {
+			duration = d.String()
+		}
+	}
+
+	return fmt.Sprintf(
+		`================= [ Track Info ] =================
+Title:    %s
+Artist:   %s
+Duration: %s
+==================================================`,
+		t.Results.Data.GetTitle(),
+		t.Results.Data.Artist,
+		duration,
+	)
+}
+
+func (t *Track) GetType() string {
+	return "Track"
+}
+
+func (t *Track) GetTitle() string {
+	if t.Results.Data == nil {
+		return ""
+	}
+	return t.Results.Data.GetTitle()
+}
+
+func (t *Track) GetSongs() []*Song {
+	if t.Results.Data == nil {
+		return []*Song{}
+	}
+	return []*Song{t.Results.Data}
+}
+
+func (t *Track) SetSongs(songs []*Song) {}
+
+func (t *Track) GetOutputDir(outputDir string) string {
+	if t.Results.Data == nil {
+		return outputDir
+	}
+
+	// For single tracks, create a simple "Singles" folder
+	base := "Singles"
+	base, _ = filenamify.Filenamify(base, filenamify.Options{})
+	outputDir = path.Join(outputDir, base)
+
+	return outputDir
+}
+
+func (t *Track) Unmarshal(data []byte) error {
+	return json.Unmarshal(data, t)
+}

internal/downloader/client.go

@@ -11,13 +11,12 @@ import (
 	"sync"
 	"time"
 
-	"github.com/briandowns/spinner"
-	"github.com/mathismqn/godeez/internal/bpm"
 	"github.com/mathismqn/godeez/internal/config"
 	"github.com/mathismqn/godeez/internal/crypto"
 	"github.com/mathismqn/godeez/internal/deezer"
 	"github.com/mathismqn/godeez/internal/fileutil"
 	"github.com/mathismqn/godeez/internal/logger"
+	"github.com/mathismqn/godeez/internal/provider"
 	"github.com/mathismqn/godeez/internal/store"
 	"github.com/mathismqn/godeez/internal/tags"
 )
@@ -45,6 +44,19 @@ func New(appConfig *config.Config, resourceType string) *Client {
 }
 
 func (c *Client) Run(ctx context.Context, opts Options, id string) error {
+	if err := c.initDeezerClient(ctx, opts); err != nil {
+		return err
+	}
+
+	resource, outputDir, err := c.prepareResource(ctx, id, opts)
+	if err != nil {
+		return err
+	}
+
+	return c.downloadAllSongs(ctx, resource, id, opts, outputDir)
+}
+
+func (c *Client) initDeezerClient(ctx context.Context, opts Options) error {
 	var err error
 	c.deezerClient, err = deezer.NewClient(ctx, c.appConfig)
 	if err != nil {
@@ -55,192 +67,142 @@ func (c *Client) Run(ctx context.Context, opts Options, id string) error {
 		return fmt.Errorf("premium account required for '%s' quality", opts.Quality)
 	}
 
-	var resource deezer.Resource
-	switch c.resourceType {
-	case "album":
-		resource = &deezer.Album{}
-	case "playlist":
-		resource = &deezer.Playlist{}
-	case "artist":
-		resource = &deezer.Artist{}
-	default:
-		return fmt.Errorf("unsupported resource type: %s", c.resourceType)
+	return nil
+}
+
+func (c *Client) prepareResource(ctx context.Context, id string, opts Options) (deezer.Resource, string, error) {
+	resource, err := c.createResource()
+	if err != nil {
+		return nil, "", err
 	}
 
 	if err := c.deezerClient.FetchResource(ctx, resource, id); err != nil {
-		return fmt.Errorf("failed to fetch resource: %w", err)
+		return nil, "", fmt.Errorf("failed to fetch resource: %w", err)
 	}
 
 	songs := resource.GetSongs()
 	if len(songs) == 0 {
-		return fmt.Errorf("%s has no songs", c.resourceType)
+		if c.resourceType == "track" {
+			return nil, "", fmt.Errorf("track with ID %s not found", id)
+		}
+		return nil, "", fmt.Errorf("%s has no songs", c.resourceType)
 	}
+
 	if c.resourceType == "artist" && len(songs) > opts.Limit {
 		songs = songs[:opts.Limit]
 		resource.SetSongs(songs)
 	}
 
-	rootOutputDir := c.appConfig.OutputDir
-	resourceOutputDir := resource.GetOutputDir(rootOutputDir)
+	resourceOutputDir := resource.GetOutputDir(c.appConfig.OutputDir)
 	if err := fileutil.EnsureDir(resourceOutputDir); err != nil {
-		return fmt.Errorf("failed to create output directory: %w", err)
+		return nil, "", fmt.Errorf("failed to create output directory: %w", err)
 	}
 
-	startTime := time.Now()
-	fmt.Printf("%s\n\nStarting download...\n\n", resource)
+	return resource, resourceOutputDir, nil
+}
 
-	downloaded := 0
-	skipped := 0
-	failed := 0
+func (c *Client) createResource() (deezer.Resource, error) {
+	switch c.resourceType {
+	case "album":
+		return &deezer.Album{}, nil
+	case "playlist":
+		return &deezer.Playlist{}, nil
+	case "artist":
+		return &deezer.Artist{}, nil
+	case "track":
+		return &deezer.Track{}, nil
+	default:
+		return nil, fmt.Errorf("unsupported resource type: %s", c.resourceType)
+	}
+}
+
+func (c *Client) downloadAllSongs(ctx context.Context, resource deezer.Resource, resourceID string, opts Options, outputDir string) error {
+	songs := resource.GetSongs()
+	startTime := time.Now()
+
+	if c.resourceType != "track" {
+		fmt.Printf("%s\n\nStarting download...\n\n", resource)
+	}
+
+	progress := newProgressTracker(c.Logger, len(songs), c.resourceType)
 
 	for i, song := range songs {
 		if ctx.Err() != nil {
 			return ctx.Err()
 		}
 
-		trackProgress := fmt.Sprintf("[%d/%d]", i+1, len(songs))
-
-		sp := spinner.New(spinner.CharSets[14], 100*time.Millisecond)
-		sp.Writer = os.Stdout
-		sp.Prefix = trackProgress + " "
-		sp.Suffix = fmt.Sprintf(" Downloading: %s - %s", song.Artist, song.Title)
-		sp.Start()
-
-		warnings, err := c.downloadSong(ctx, resource, song, opts, resourceOutputDir)
+		sp := progress.startDownload(i, song)
+		result := c.downloadSong(ctx, resource, song, opts, outputDir)
 		sp.Stop()
 
-		if err != nil {
-			if errors.Is(err, context.Canceled) {
-				return err
+		if result.err != nil {
+			if errors.Is(result.err, context.Canceled) {
+				return result.err
 			}
-
-			if path, ok := IsSkipError(err); ok {
-				skipped++
-				fmt.Printf("%s ↷ Skipped: %s - %s\n    Already exists at: %s\n", trackProgress, song.Artist, song.Title, path)
-				continue
-			}
-
-			failed++
-			c.Logger.Errorf("Failed to download %s - %s: %v\n", song.Artist, song.Title, err)
-			fmt.Printf("%s ✖ Failed: %s - %s:\n    Error: %v\n", trackProgress, song.Artist, song.Title, err)
-
-			continue
 		}
 
-		symbol := "✔"
-		if len(warnings) > 0 {
-			symbol = "⚠"
-		}
-
-		downloaded++
-		c.Logger.Infof("Downloaded %s - %s\n", song.Artist, song.Title)
-		fmt.Printf("%s %s Downloaded: %s - %s\n", trackProgress, symbol, song.Artist, song.Title)
-
-		for _, w := range warnings {
-			c.Logger.Warnf("Warning: %s\n", w)
-			fmt.Printf("    Warning: %s\n", w)
-		}
+		progress.handleResult(i, song, result)
 	}
 
-	if downloaded > 0 || failed > 0 {
-		c.Logger.Infof("Playlist %s (%s): %d downloaded, %d skipped, %d failed\n", resource.GetTitle(), id, downloaded, skipped, failed)
-	}
-	fmt.Printf(`
-================== [ Summary ] ==================
-Downloaded:     %d
-Skipped:        %d
-Failed:         %d
-Elapsed time:   %s
-Files saved to: %s
-=================================================
-`,
-		downloaded,
-		skipped,
-		failed,
-		time.Since(startTime).Round(time.Second),
-		resourceOutputDir,
-	)
+	progress.printSummary(resource.GetTitle(), resourceID, outputDir, time.Since(startTime))
 
 	return nil
 }
 
-func (c *Client) downloadSong(ctx context.Context, resource deezer.Resource, song *deezer.Song, opts Options, outputDir string) ([]string, error) {
+func (c *Client) downloadSong(ctx context.Context, resource deezer.Resource, song *deezer.Song, opts Options, outputDir string) downloadResult {
 	var warnings []string
 
 	media, err := c.deezerClient.FetchMedia(ctx, song, opts.Quality)
 	if err != nil {
-		return nil, fmt.Errorf("failed to fetch media: %w", err)
+		return handleError(fmt.Errorf("failed to fetch media: %w", err))
 	}
 
-	fileName := song.GetFileName(c.resourceType, song, media)
-	outputPath := path.Join(outputDir, fileName)
-
-	mediaFormat, err := media.GetFormat()
-	if err != nil {
-		return nil, fmt.Errorf("failed to get media format: %w", err)
-	}
+	mediaFormat := media.GetFormat()
 	if opts.Strict && strings.ToLower(mediaFormat) != opts.Quality {
-		return nil, fmt.Errorf("requested quality '%s' not available", opts.Quality)
+		return handleError(fmt.Errorf("requested quality '%s' not available", opts.Quality))
 	}
 
 	if path, skip := c.shouldSkipDownload(ctx, song.ID, mediaFormat); skip {
-		return nil, SkipError{Path: path}
+		return handleError(SkipError{Path: path})
 	}
 
-	var metricsChan chan *bpm.Metrics
-	var errChan chan error
-	if opts.BPM {
-		metricsChan = make(chan *bpm.Metrics, 1)
-		errChan = make(chan error, 1)
-		go func() {
-			metrics, err := bpm.FetchMetrics(ctx, c.deezerClient.Session.HttpClient, song.Artist, song.Title, song.Duration)
-			if err != nil {
-				errChan <- err
-				return
-			}
-
-			metricsChan <- metrics
-		}()
-	}
+	metadataFetcher := newMetadataFetcher(c.deezerClient.Session.HttpClient)
+	metadataResult := metadataFetcher.fetch(ctx, song, opts)
+	warnings = append(warnings, metadataResult.warnings...)
 
 	stream, err := c.deezerClient.GetMediaStream(ctx, media, song.ID)
 	if err != nil {
-		return nil, fmt.Errorf("failed to get media stream: %w", err)
+		return handleError(fmt.Errorf("failed to get media stream: %w", err))
 	}
 
 	dlCtx, cancel := context.WithTimeout(ctx, opts.Timeout)
 	defer cancel()
 
+	fileName := song.GetFileName(c.resourceType, mediaFormat, song)
+	outputPath := path.Join(outputDir, fileName)
+
 	key := crypto.GetKey(c.appConfig.SecretKey, song.ID)
 	if err := c.streamToFile(dlCtx, stream, outputPath, key); err != nil {
 		fileutil.DeleteFile(outputPath)
-
-		return nil, fmt.Errorf("failed to stream to file: %w", err)
+		return handleError(fmt.Errorf("failed to stream to file: %w", err))
 	}
 
 	if opts.Quality != strings.ToLower(mediaFormat) {
 		warnings = append(warnings, fmt.Sprintf("requested quality '%s' not available, using '%s' instead", opts.Quality, strings.ToLower(mediaFormat)))
 	}
 
-	metrics := &bpm.Metrics{}
-	if opts.BPM {
-		select {
-		case metrics = <-metricsChan:
-		case err := <-errChan:
-			if !errors.Is(err, context.Canceled) {
-				warnings = append(warnings, fmt.Sprintf("failed to fetch BPM and key: %v", err))
-			}
-		}
-	}
-
 	cover, err := c.deezerClient.FetchCoverImage(ctx, song)
 	if err != nil && !errors.Is(err, context.Canceled) {
 		warnings = append(warnings, fmt.Sprintf("failed to fetch cover image: %v", err))
 	}
 
-	warnings = append(warnings, c.finalizeDownload(resource, song, outputPath, mediaFormat, cover, metrics)...)
+	finalizeWarnings := c.finalizeDownload(resource, song, outputPath, mediaFormat, metadataResult.genre, cover, metadataResult.bpmKey)
+	warnings = append(warnings, finalizeWarnings...)
 
-	return warnings, nil
+	return downloadResult{
+		success:  true,
+		warnings: warnings,
+	}
 }
 
 func (c *Client) streamToFile(ctx context.Context, stream io.ReadCloser, outputPath string, key []byte) error {
@@ -300,10 +262,10 @@ func (c *Client) streamToFile(ctx context.Context, stream io.ReadCloser, outputP
 	return nil
 }
 
-func (c *Client) finalizeDownload(resource deezer.Resource, song *deezer.Song, outputPath, mediaFormat string, cover []byte, metrics *bpm.Metrics) []string {
+func (c *Client) finalizeDownload(resource deezer.Resource, song *deezer.Song, outputPath, mediaFormat, genre string, cover []byte, bpmKey provider.BPMKey) []string {
 	var warnings []string
 
-	if err := tags.AddTags(resource, song, cover, outputPath, metrics.BPM, metrics.Key); err != nil {
+	if err := tags.AddTags(resource, song, cover, outputPath, bpmKey.BPM, bpmKey.Key, genre); err != nil {
 		warnings = append(warnings, fmt.Sprintf("failed to add tags: %v", err))
 	}
 

internal/downloader/errors.go

@@ -0,0 +1,15 @@
+package downloader
+
+func handleError(err error) downloadResult {
+	if path, ok := IsSkipError(err); ok {
+		return downloadResult{
+			skipped: true,
+			path:    path,
+		}
+	}
+
+	return downloadResult{
+		success: false,
+		err:     err,
+	}
+}

internal/downloader/metadata.go

@@ -0,0 +1,92 @@
+package downloader
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/mathismqn/godeez/internal/deezer"
+	"github.com/mathismqn/godeez/internal/provider"
+)
+
+type metadataResult struct {
+	bpmKey   provider.BPMKey
+	genre    string
+	warnings []string
+}
+
+type metadataFetcher struct {
+	httpClient *http.Client
+}
+
+func newMetadataFetcher(httpClient *http.Client) *metadataFetcher {
+	return &metadataFetcher{
+		httpClient: httpClient,
+	}
+}
+
+func (mf *metadataFetcher) fetch(ctx context.Context, song *deezer.Song, opts Options) metadataResult {
+	result := metadataResult{
+		bpmKey:   provider.BPMKey{},
+		genre:    "",
+		warnings: []string{},
+	}
+
+	if !opts.BPM && !opts.Genre {
+		return result
+	}
+
+	bmpChan := make(chan provider.BPMKey, 1)
+	bmpErrChan := make(chan error, 1)
+	genreChan := make(chan string, 1)
+	genreErrChan := make(chan error, 1)
+
+	if opts.BPM {
+		go func() {
+			p := provider.BPMProvider{}
+			bmpKey, err := p.Fetch(ctx, mf.httpClient, song.Artist, song.Title, song.Duration)
+			if err != nil {
+				bmpErrChan <- err
+			} else {
+				bmpChan <- bmpKey
+			}
+		}()
+	}
+
+	if opts.Genre {
+		go func() {
+			p := provider.GenreProvider{}
+			genre, err := p.Fetch(ctx, mf.httpClient, song.Artist, song.GetTitle())
+			if err != nil {
+				genreErrChan <- err
+			} else {
+				genreChan <- genre
+			}
+		}()
+	}
+
+	if opts.BPM {
+		select {
+		case bmpKey := <-bmpChan:
+			result.bpmKey = bmpKey
+		case err := <-bmpErrChan:
+			if !errors.Is(err, context.Canceled) {
+				result.warnings = append(result.warnings, fmt.Sprintf("failed to fetch BPM and key: %v", err))
+			}
+		}
+	}
+
+	if opts.Genre {
+		select {
+		case genre := <-genreChan:
+			result.genre = genre
+		case err := <-genreErrChan:
+			if !errors.Is(err, context.Canceled) {
+				result.warnings = append(result.warnings, fmt.Sprintf("failed to fetch genre: %v", err))
+			}
+		}
+	}
+
+	return result
+}

internal/downloader/options.go

@@ -16,6 +16,7 @@ type Options struct {
 	Timeout time.Duration
 	Limit   int
 	BPM     bool
+	Genre   bool
 	Strict  bool
 }
 

internal/downloader/progress.go

@@ -0,0 +1,124 @@
+package downloader
+
+import (
+	"fmt"
+	"math/rand"
+	"os"
+	"time"
+
+	"github.com/briandowns/spinner"
+	"github.com/mathismqn/godeez/internal/deezer"
+	"github.com/mathismqn/godeez/internal/logger"
+)
+
+type downloadStats struct {
+	downloaded int
+	skipped    int
+	failed     int
+}
+
+type downloadResult struct {
+	success  bool
+	skipped  bool
+	path     string
+	warnings []string
+	err      error
+}
+
+type progressTracker struct {
+	logger       *logger.Logger
+	stats        *downloadStats
+	totalSongs   int
+	resourceType string
+}
+
+func newProgressTracker(logger *logger.Logger, totalSongs int, resourceType string) *progressTracker {
+	return &progressTracker{
+		logger:       logger,
+		stats:        &downloadStats{},
+		totalSongs:   totalSongs,
+		resourceType: resourceType,
+	}
+}
+
+func (pt *progressTracker) startDownload(index int, song *deezer.Song) *spinner.Spinner {
+	songTitle := song.GetTitle()
+	trackProgress := fmt.Sprintf("[%d/%d]", index+1, pt.totalSongs)
+
+	sp := spinner.New(spinner.CharSets[14], 100*time.Millisecond)
+	sp.Writer = os.Stdout
+	sp.Prefix = trackProgress + " "
+	sp.Suffix = fmt.Sprintf(" Downloading: %s - %s", song.Artist, songTitle)
+	sp.Start()
+
+	return sp
+}
+
+func (pt *progressTracker) handleResult(index int, song *deezer.Song, result downloadResult) {
+	trackProgress := fmt.Sprintf("[%d/%d]", index+1, pt.totalSongs)
+	songTitle := song.GetTitle()
+
+	if result.skipped {
+		pt.stats.skipped++
+		fmt.Printf("%s ↷ Skipped: %s - %s\n    Already exists at: %s\n",
+			trackProgress, song.Artist, songTitle, result.path)
+		return
+	}
+
+	if result.err != nil {
+		pt.stats.failed++
+		pt.logger.Errorf("Failed to download %s - %s: %v\n", song.Artist, songTitle, result.err)
+		fmt.Printf("%s ✖ Failed: %s - %s:\n    Error: %v\n",
+			trackProgress, song.Artist, songTitle, result.err)
+		return
+	}
+
+	symbol := "✔"
+	if len(result.warnings) > 0 {
+		symbol = "⚠"
+	}
+
+	pt.stats.downloaded++
+	pt.logger.Infof("Downloaded %s - %s\n", song.Artist, songTitle)
+	fmt.Printf("%s %s Downloaded: %s - %s\n", trackProgress, symbol, song.Artist, songTitle)
+
+	for _, w := range result.warnings {
+		pt.logger.Warnf("Warning: %s\n", w)
+		fmt.Printf("    Warning: %s\n", w)
+	}
+}
+
+func (pt *progressTracker) printSummary(resourceTitle, resourceID, outputDir string, elapsed time.Duration) {
+	if pt.stats.downloaded > 0 || pt.stats.failed > 0 {
+		pt.logger.Infof("Resource %s (%s): %d downloaded, %d skipped, %d failed\n",
+			resourceTitle, resourceID, pt.stats.downloaded, pt.stats.skipped, pt.stats.failed)
+	}
+
+	if pt.resourceType != "track" {
+		fmt.Printf(`
+================== [ Summary ] ==================
+Downloaded:     %d
+Skipped:        %d
+Failed:         %d
+Elapsed time:   %s
+Files saved to: %s
+=================================================
+`,
+			pt.stats.downloaded,
+			pt.stats.skipped,
+			pt.stats.failed,
+			elapsed.Round(time.Second),
+			outputDir,
+		)
+
+		if pt.stats.downloaded > 0 {
+			pt.showSupportMessage()
+		}
+	}
+}
+
+func (pt *progressTracker) showSupportMessage() {
+	if rand.Float64() < 0.1 {
+		fmt.Printf("\n💖 Enjoying GoDeez? Give us a ⭐ on GitHub: https://github.com/mathismqn/godeez\n")
+	}
+}

internal/provider/bpm.go

@@ -1,4 +1,4 @@
-package bpm
+package provider
 
 import (
 	"bytes"
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
-	"net/url"
+	neturl "net/url"
 	"regexp"
 	"strconv"
 	"strings"
@@ -14,30 +14,32 @@ import (
 	"github.com/PuerkitoBio/goquery"
 )
 
-type Metrics struct {
+type BPMProvider struct{}
+
+type BPMKey struct {
 	BPM string
 	Key string
 }
 
-func FetchMetrics(ctx context.Context, httpClient *http.Client, artist, title, duration string) (*Metrics, error) {
-	url, err := findSongURL(ctx, httpClient, artist, title, duration)
+func (p BPMProvider) Fetch(ctx context.Context, httpClient *http.Client, artist, title, duration string) (BPMKey, error) {
+	url, err := p.findSongURL(ctx, httpClient, artist, title, duration)
 	if err != nil {
-		return nil, err
+		return BPMKey{}, err
 	}
 
-	html, err := fetchPage(ctx, httpClient, url)
+	html, err := p.fetchPage(ctx, httpClient, url)
 	if err != nil {
-		return nil, err
+		return BPMKey{}, err
 	}
 
-	return parseMetrics(html)
+	return p.parse(html)
 }
 
-func findSongURL(ctx context.Context, httpClient *http.Client, artist, title, duration string) (string, error) {
+func (p BPMProvider) findSongURL(ctx context.Context, httpClient *http.Client, artist, title, duration string) (string, error) {
 	rootUrl := "https://songbpm.com"
 	reqUrl := rootUrl + "/searches"
 
-	values := url.Values{}
+	values := neturl.Values{}
 	values.Add("query", fmt.Sprintf("%s %s", artist, title))
 
 	req, err := http.NewRequestWithContext(ctx, "POST", reqUrl, bytes.NewBufferString(values.Encode()))
@@ -90,12 +92,13 @@ func findSongURL(ctx context.Context, httpClient *http.Client, artist, title, du
 		}
 
 		foundDuration := minutes*60 + seconds
-		duration, err := strconv.Atoi(duration)
+		wantDuration, err := strconv.Atoi(duration)
 		if err != nil {
 			return true
 		}
 
-		if foundDuration <= (duration-2) || foundDuration >= (duration+2) {
+		const durationToleranceSec = 2
+		if foundDuration <= (wantDuration-durationToleranceSec) || foundDuration >= (wantDuration+durationToleranceSec) {
 			return true
 		}
 
@@ -112,7 +115,7 @@ func findSongURL(ctx context.Context, httpClient *http.Client, artist, title, du
 	return rootUrl + url, nil
 }
 
-func fetchPage(ctx context.Context, httpClient *http.Client, url string) (string, error) {
+func (p BPMProvider) fetchPage(ctx context.Context, httpClient *http.Client, url string) (string, error) {
 	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
 	if err != nil {
 		return "", err
@@ -136,7 +139,7 @@ func fetchPage(ctx context.Context, httpClient *http.Client, url string) (string
 	return string(body), nil
 }
 
-func parseMetrics(html string) (*Metrics, error) {
+func (p BPMProvider) parse(html string) (BPMKey, error) {
 	bpmRegex := regexp.MustCompile(`tempo of <span[^>]*>(\d+) BPM`)
 	bpmMatch := bpmRegex.FindStringSubmatch(html)
 
@@ -147,7 +150,7 @@ func parseMetrics(html string) (*Metrics, error) {
 	modeMatch := modeRegex.FindStringSubmatch(html)
 
 	if len(bpmMatch) != 2 || len(keyMatch) != 2 || len(modeMatch) != 2 {
-		return nil, fmt.Errorf("no data found")
+		return BPMKey{}, fmt.Errorf("no data found")
 	}
 
 	isMinor := false
@@ -169,8 +172,9 @@ func parseMetrics(html string) (*Metrics, error) {
 		key += "m"
 	}
 
-	return &Metrics{
+	return BPMKey{
 		BPM: bpm,
 		Key: key,
 	}, nil
+
 }

internal/provider/genre.go

@@ -0,0 +1,86 @@
+package provider
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+type GenreProvider struct{}
+
+func (p GenreProvider) Fetch(ctx context.Context, httpClient *http.Client, artist, title string) (string, error) {
+	reqUrl := fmt.Sprintf("https://www.last.fm/music/%s/%s/+tags", artist, title)
+	doc, err := p.fetchPage(ctx, httpClient, reqUrl)
+	if err != nil {
+		return "", err
+	}
+
+	tags := p.parse(doc)
+	if len(tags) == 0 {
+		return "", fmt.Errorf("no data found")
+	}
+
+	if len(tags) > 1 {
+		tags = tags[:2]
+	}
+	genre := p.formatTags(tags)
+
+	return genre, nil
+}
+
+func (p GenreProvider) fetchPage(ctx context.Context, httpClient *http.Client, reqUrl string) (*goquery.Document, error) {
+	req, err := http.NewRequestWithContext(ctx, "GET", reqUrl, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	doc, err := goquery.NewDocumentFromReader(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return doc, nil
+}
+
+func (p GenreProvider) parse(doc *goquery.Document) []string {
+	var tags []string
+	doc.Find("ol.big-tags .big-tags-item-name a").Each(func(_ int, s *goquery.Selection) {
+		tag := strings.TrimSpace(s.Text())
+		if tag != "" {
+			tags = append(tags, tag)
+		}
+	})
+
+	return tags
+}
+
+func (p GenreProvider) formatTags(tags []string) string {
+	var formatted []string
+	for _, tag := range tags {
+		tag = strings.TrimSpace(tag)
+		if tag == "" {
+			continue
+		}
+
+		words := strings.Fields(tag)
+		for i, w := range words {
+			words[i] = strings.Title(w)
+		}
+		formatted = append(formatted, strings.Join(words, " "))
+	}
+
+	return strings.Join(formatted, "/")
+}

internal/tags/flac.go

@@ -16,26 +16,28 @@ type flacTagger struct {
 	index int
 }
 
-func (t *flacTagger) addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key string) error {
+func (t *flacTagger) addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key, genre string) error {
 	if album, ok := resource.(*deezer.Album); ok {
 		dateParts := strings.Split(album.Results.Data.PhysicalReleaseDate, "-")
 		if len(dateParts) == 3 {
 			album.Results.Data.PhysicalReleaseDate = dateParts[0]
 		}
 
-		t.addTag("ALBUM", album.Results.Data.Title)
+		t.addTag("TRACKNUMBER", song.TrackNumber)
 		t.addTag("ALBUMARTIST", album.Results.Data.Artist)
+		t.addTag("ALBUM", album.Results.Data.Title)
 		t.addTag("PUBLISHER", album.Results.Data.Label)
 		t.addTag("ORIGINALDATE", album.Results.Data.OriginalReleaseDate)
 		t.addTag("DATE", album.Results.Data.PhysicalReleaseDate)
 		t.addTag("COMMENT", album.Results.Data.ProducerLine)
-		t.addTag("TRACKNUMBER", song.TrackNumber)
+		t.addTag("COPYRIGHT", album.Results.Data.Copyright)
 	}
 
-	t.addTag("TITLE", song.Title)
 	t.addTag("ARTIST", strings.Join(song.Contributors.MainArtists, ", "))
+	t.addTag("TITLE", song.GetTitle())
 	t.addTag("COMPOSER", strings.Join(song.Contributors.Composers, ", "))
 	t.addTag("LYRICIST", strings.Join(song.Contributors.Authors, ", "))
+	t.addTag("GENRE", genre)
 	t.addTag("REPLAYGAIN_TRACK_GAIN", song.Gain)
 	t.addTag("ISRC", song.ISRC)
 

internal/tags/id3v2.go

@@ -13,7 +13,7 @@ type id3v2Tagger struct {
 	tag *id3v2.Tag
 }
 
-func (t *id3v2Tagger) addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key string) error {
+func (t *id3v2Tagger) addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key, genre string) error {
 	defer t.tag.Close()
 
 	duration, err := strconv.Atoi(song.Duration)
@@ -23,19 +23,21 @@ func (t *id3v2Tagger) addTags(resource deezer.Resource, song *deezer.Song, cover
 	song.Duration = fmt.Sprintf("%d", duration*1000)
 
 	if album, ok := resource.(*deezer.Album); ok {
-		t.addTag("TALB", album.Results.Data.Title)
+		t.addTag("TRCK", song.TrackNumber)
 		t.addTag("TPE2", album.Results.Data.Artist)
+		t.addTag("TALB", album.Results.Data.Title)
 		t.addTag("TPUB", album.Results.Data.Label)
 		t.addTag("TDOR", album.Results.Data.OriginalReleaseDate)
 		t.addTag("TYER", album.Results.Data.PhysicalReleaseDate)
 		t.addTag("COMM", album.Results.Data.ProducerLine)
-		t.addTag("TRCK", song.TrackNumber)
+		t.addTag("TCOP", album.Results.Data.Copyright)
 	}
 
-	t.addTag("TIT2", song.Title)
 	t.addTag("TPE1", strings.Join(song.Contributors.MainArtists, ", "))
+	t.addTag("TIT2", song.GetTitle())
 	t.addTag("TCOM", strings.Join(song.Contributors.Composers, ", "))
 	t.addTag("TEXT", strings.Join(song.Contributors.Authors, ", "))
+	t.addTag("TCON", genre)
 	t.addTag("TLEN", song.Duration)
 	t.addTXXXTag("GAIN", song.Gain)
 	t.addTXXXTag("ISRC", song.ISRC)

internal/tags/tags.go

@@ -10,7 +10,7 @@ import (
 )
 
 type tagger interface {
-	addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key string) error
+	addTags(resource deezer.Resource, song *deezer.Song, cover []byte, path, tempo, key, genre string) error
 }
 
 func newTagger(filePath string) (tagger, error) {
@@ -39,11 +39,11 @@ func newTagger(filePath string) (tagger, error) {
 	return &flacTagger{file: file, cmts: cmts, index: idx}, nil
 }
 
-func AddTags(resource deezer.Resource, song *deezer.Song, cover []byte, filePath, tempo, key string) error {
+func AddTags(resource deezer.Resource, song *deezer.Song, cover []byte, filePath, tempo, key, genre string) error {
 	tagger, err := newTagger(filePath)
 	if err != nil {
 		return err
 	}
 
-	return tagger.addTags(resource, song, cover, filePath, tempo, key)
+	return tagger.addTags(resource, song, cover, filePath, tempo, key, genre)
 }