Changed a bunch of stuff. Almost ready for release.

- updated cli for config viewing and changes
- updated config method. an environment variable `IRS_CONFIG_LOCATION` will be set pointing to a yaml file with a config
- moved album metadata changing from a janky homebrew json modifier to the core json lib
- mapper.cr is the collection of classes for messing around with json metadata
- playlists are almost done, they still need the ability to (optionally) change the metadata of the songs downloaded in
the playlist, but they (optionally) will place all downloaded playlist songs in a single folder
- added a getter to the filename in song.cr

src/bottle/cli.cr

@@ -17,6 +17,7 @@ class CLI
     [["-h", "--help"], "help", "bool"],
     [["-v", "--version"], "version", "bool"],
     [["-i", "--install"], "install", "bool"],
+    [["-c", "--config"], "config", "bool"],
     [["-a", "--artist"], "artist", "string"],
     [["-s", "--song"], "song", "string"],
     [["-A", "--album"], "album", "string"],
@@ -44,7 +45,8 @@ class CLI
     #{Style.bold "Arguments:"}
         #{Style.blue "-h, --help"}                  Show this help message and exit
         #{Style.blue "-v, --version"}               Show the program version and exit
-        #{Style.blue "-i, --install"}               Download necessary binaries to #{Style.green "~/.irs/bin"}
+        #{Style.blue "-i, --install"}               Download binaries to config location
+        #{Style.blue "-c, --config"}                Show config file location
         #{Style.blue "-a, --artist <artist>"}       Specify artist name for downloading
         #{Style.blue "-s, --song <song>"}           Specify song name to download
         #{Style.blue "-A, --album <album>"}         Specify the album name to download
@@ -59,13 +61,16 @@ class CLI
         #{Style.dim %(# => downloads the playlist "a different drummer" by the user prakkillian)}
 
     #{Style.bold "This project is licensed under the MIT license."}
-    #{Style.bold "Project page: <github.com/cooperhammond/irs>"}
+    #{Style.bold "Project page: <https://github.com/cooperhammond/irs>"}
     EOP
 
     puts msg
   end
 
   def act_on_args
+    
+    Config.check_necessities()
+
     if @args["help"]? || @args.keys.size == 0
       help
       exit
@@ -75,6 +80,9 @@ class CLI
     elsif @args["install"]?
       YdlBinaries.get_both(Config.binary_location)
       exit
+    elsif @args["config"]?
+      puts ENV["IRS_CONFIG_LOCATION"]?
+      exit
     elsif @args["song"]? && @args["artist"]?
       s = Song.new(@args["song"], @args["artist"])
       s.provide_client_keys(Config.client_key, Config.client_secret)
@@ -89,6 +97,10 @@ class CLI
       p = Playlist.new(@args["playlist"], @args["artist"])
       p.provide_client_keys(Config.client_key, Config.client_secret)
       p.grab_it()
+    else
+      puts Style.red("Those arguments don't do anything when used that way.")
+      puts "Type `irs -h` to see usage."
+      exit 1
     end
   end
 
@@ -124,7 +136,7 @@ class CLI
       end
 
       # ensure there's an argument if the program needs one
-      if flag[2] == "string" && i + 1 > argv.size
+      if flag[2] == "string" && i + 1 >= argv.size
         arg_error argv, i, %("#{arg}" needs an argument.)
       end
 

src/bottle/config.cr

@@ -1,22 +1,105 @@
+require "yaml"
+
+require "./styles"
+
+
+EXAMPLE_CONFIG = <<-EOP
+#{Style.dim "exampleconfig.yml"}
+#{Style.dim "===="}
+binary_directory: ~/.irs/bin
+music_directory: ~/Music
+client_key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+client_secret: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+single_folder_playlist: 
+  enabled: true
+  retain_playlist_order: true
+  overwrite_album: false
+#{Style.dim "===="}
+EOP
+
 module Config
 
   extend self
 
+  @@arguments = [
+    "binary_directory", 
+    "music_directory", 
+    "client_key", 
+    "client_secret",
+    "single_folder_playlist: enabled", 
+    "single_folder_playlist: retain_playlist_order", 
+    "single_folder_playlist: overwrite_album"
+  ]
+
+  @@conf = YAML.parse("")
+  begin
+    @@conf = YAML.parse(File.read(ENV["IRS_CONFIG_LOCATION"]))
+  rescue
+    puts Style.red "Before anything else, define the environment variable IRS_CONFIG_LOCATION pointing to a .yml file like this one."
+    puts EXAMPLE_CONFIG
+    puts Style.bold "See https://github.com/cooperhammond/irs for more information on the config file"
+    exit 1
+  end
+
   def binary_location : String
-    path = "~/.irs/bin"
+    path = @@conf["binary_directory"].to_s
     return Path[path].expand(home: true).to_s
   end
 
   def music_directory : String
-    path = "./Music/"
+    path = @@conf["music_directory"].to_s
     return Path[path].expand(home: true).to_s
   end
 
   def client_key : String
-    return "362f75b91aeb471bb392945f93eba842"
+    return @@conf["client_key"].to_s
   end
 
   def client_secret : String
-    return "013556dd71e14e1da9443dee73e23a91"
+    return @@conf["client_secret"].to_s
+  end
+
+  def single_folder_playlist? : Bool
+    return @@conf["single_folder_playlist"]["enabled"].as_bool
+  end
+
+  def retain_playlist_order? : Bool
+    return @@conf["single_folder_playlist"]["retain_playlist_order"].as_bool
+  end
+
+  def overwrite_album? : Bool
+    return @@conf["single_folder_playlist"]["overwrite_album"].as_bool
+  end 
+
+  def check_necessities
+    missing_configs = [] of String
+    @@arguments.each do |argument|
+      if !check_conf(argument)
+        missing_configs.push(argument)
+      end      
+    end
+    if missing_configs.size > 0
+      puts Style.red("You are missing the following key(s) in your YAML config file:")
+      missing_configs.each do |config|
+        puts "  " + config
+      end
+      puts "\nHere's an example of what your config should look like:"
+      puts EXAMPLE_CONFIG
+      puts Style.bold "See https://github.com/cooperhammond/irs for more information on the config file"
+      exit 1
+    end
+  end
+
+  private def check_conf(key : String) : YAML::Any?
+    if key.includes?(": ")
+      args = key.split(": ")
+      if @@conf[args[0]]?
+        return @@conf[args[0]][args[1]]?
+      else
+        return @@conf[args[0]]?
+      end
+    else
+      return @@conf[key]?
+    end
   end
 end

src/glue/album.cr

@@ -5,8 +5,6 @@ require "./song"
 require "./list"
 
 
-
-
 class Album < SpotifyList
 
   @home_music_directory = Config.music_directory
@@ -37,7 +35,7 @@ class Album < SpotifyList
       }
     ))
 
-    prepped_data = AlbumTrackMetadataMapper.from_json(datum.to_json)
+    prepped_data = AlbumTracksMapper.from_json(datum.to_json)
     prepped_data.album = album_metadata
 
     data = parse_to_json(prepped_data.to_json)

src/glue/mapper.cr

@@ -24,7 +24,7 @@ class PlaylistTracksMapper
   )
 end
 
-class AlbumTrackMetadataMapper
+class AlbumTracksMapper
   JSON.mapping(
     album: { 
       type: JSON::Any,

src/glue/playlist.cr

@@ -3,9 +3,11 @@ require "../bottle/config"
 require "./song"
 require "./list"
 
+
 class Playlist < SpotifyList
 
   @home_music_directory = Config.music_directory
+  @playlist : JSON::Any?
 
   # Uses the `spotify_searcher` defined in parent `SpotifyList` to find the
   # correct metadata of the list 
@@ -14,8 +16,8 @@ class Playlist < SpotifyList
       "name" => @list_name.as(String),
       "username" => @list_author.as(String)
     })
-    if playlist
-      return playlist.as(JSON::Any)
+    if @playlist
+      return @playlist.as(JSON::Any)
     else
       puts "No playlists were found by that name and user."
       exit 1
@@ -26,16 +28,24 @@ class Playlist < SpotifyList
   # of spotify's album json. Moves the title of the album and the album art
   # to the json of the single song
   def organize_song_metadata(list : JSON::Any, datum : JSON::Any) : JSON::Any
-    puts datum
-    puts "THIS"
-
-    exit 0
     data = datum
 
     return data
   end
 
   private def organize(song : Song)
+    if Config.single_folder_playlist?
+      path = Path[@home_music_directory].expand(home: true)
+      path = path / @playlist.as(JSON::Any)["name"].to_s
+        .gsub(/[\/]/, "").gsub("  ", " ")
+      strpath = path.to_s
+      if !File.directory?(strpath)
+        FileUtils.mkdir_p(strpath)
+      end
+      safe_filename = song.filename.gsub(/[\/]/, "").gsub("  ", " ")
+      File.rename("./" + song.filename, (path / safe_filename).to_s)
+    else
       song.organize_it(@home_music_directory)
     end
   end
+end

src/glue/song.cr

@@ -11,7 +11,7 @@ class Song
   @client_secret = ""
 
   @metadata : JSON::Any?
-  @filename = ""
+  getter filename = ""
   @artist = ""
   @album = ""