FileTree: Show more distinct icons where possible

app/models/file_type.rb

@@ -7,8 +7,14 @@ class FileType < ApplicationRecord
   include DefaultValues
 
   AUDIO_FILE_EXTENSIONS = %w[.aac .flac .m4a .mp3 .ogg .wav .wma].freeze
+  COMPRESSED_FILE_EXTENSIONS = %w[.7z .bz2 .gz .rar .tar .zip].freeze
+  CSV_FILE_EXTENSIONS = %w[.csv].freeze
+  EXCEL_FILE_EXTENSIONS = %w[.xls .xlsx].freeze
   IMAGE_FILE_EXTENSIONS = %w[.bmp .gif .jpeg .jpg .png].freeze
+  PDF_FILE_EXTENSIONS = %w[.pdf].freeze
+  POWERPOINT_FILE_EXTENSIONS = %w[.ppt .pptx].freeze
   VIDEO_FILE_EXTENSIONS = %w[.avi .flv .mkv .mp4 .m4v .ogv .webm].freeze
+  WORD_FILE_EXTENSIONS = %w[.doc .docx].freeze
 
   after_initialize :set_default_values
 
@@ -23,7 +29,7 @@ class FileType < ApplicationRecord
   validates :name, presence: true
   validates :renderable, boolean_presence: true
 
-  %i[audio image video].each do |type|
+  %i[audio compressed csv excel image pdf powerpoint video word].each do |type|
     define_method("#{type}?") do
       self.class.const_get("#{type.upcase}_FILE_EXTENSIONS").include?(file_extension)
     end

lib/file_tree.rb

@@ -4,16 +4,26 @@ class FileTree
   def file_icon(file)
     if file.file_type.audio?
       'fa-regular fa-file-audio'
+    elsif file.file_type.compressed?
+      'fa-regular fa-file-zipper'
+    elsif file.file_type.excel?
+      'fa-regular fa-file-excel'
     elsif file.file_type.image?
       'fa-regular fa-file-image'
+    elsif file.file_type.pdf?
+      'fa-regular fa-file-pdf'
+    elsif file.file_type.powerpoint?
+      'fa-regular fa-file-powerpoint'
     elsif file.file_type.video?
       'fa-regular fa-file-video'
+    elsif file.file_type.word?
+      'fa-regular fa-file-word'
     elsif file.read_only?
       'fa-solid fa-lock'
     elsif file.file_type.executable?
       'fa-regular fa-file-code'
-    elsif file.file_type.renderable?
-      'fa-regular fa-file-text'
+    elsif file.file_type.renderable? || file.file_type.csv?
+      'fa-regular fa-file-lines'
     else
       'fa-regular fa-file'
     end

spec/lib/file_tree_spec.rb

@@ -60,7 +60,7 @@ describe FileTree do
         let(:file) { build(:file, file_type: build(:dot_svg)) }
 
         it 'is a text file icon' do
-          expect(file_icon).to include('fa-file-text')
+          expect(file_icon).to include('fa-file-lines')
           expect(file_icon).to include('fa-regular')
         end
       end