Support removing timestamp columns from vote tables

tests/vote_parser_test.rb

@@ -1,5 +1,5 @@
 # Author: Hundter Biede (hbiede.com)
-# Version: 1.2
+# Version: 1.3
 # License: MIT
 require_relative '../vote_parser'
 require_relative './helper'
@@ -330,10 +330,10 @@ def test_init
     # Standard
     vote_file = 'init_vote_test.csv'
     CSV.open(vote_file, 'w') do |f|
-      f << %w[Password President VP]
-      f << %w[abc You I]
-      f << %w[123 Me Them]
-      f << %w[fake Villain Henchman]
+      f << %w[Timestamp Password President VP]
+      f << ['4/12/2024 17:22:30', 'abc', 'You', 'I']
+      f << ['4/12/2024 17:22:30', '123', 'Me', 'Them']
+      f << ['4/12/2024 17:22:30', 'fake', 'Villain', 'Henchman']
     end
 
     token_file = 'init_token_test.csv'

vote_parser.rb

@@ -19,10 +19,24 @@
 end.parse!
 # :nocov:
 
+# Strip timestamps from vote results
+#
+# @param [Array<Array<String>>] csv the contents of the given CSV to remove the timestamps from
+# @return [Array<Array<String>>] the file with timestamps removed
+def remove_timestamps(csv)
+  return [] if csv.nil? || csv.empty?
+
+  timestamp_index = csv[0].index { |col| col =~ /Timestamp/i }
+  timestamp_index.nil? ? csv : csv.map do |row|
+    row.delete_at timestamp_index
+    row
+  end
+end
+
 # Read the contents of the given CSV file
 #
 # @param [String] file_name The name of the file
-# @return [Array<Array<String>>]the contents of the given CSV file
+# @return [Array<Array<String>>] the contents of the given CSV file
 def read_vote_csv(file_name)
   begin
     # @type [Array<Array<String>>]
@@ -32,7 +46,7 @@ def read_vote_csv(file_name)
     exit 1
   end
   csv.delete_if { |line| line.join =~ /^\s*$/ } # delete blank lines
-  csv
+  remove_timestamps csv
 end
 
 # Parse a vote record
@@ -58,7 +72,7 @@ def self.vote_arg_count_validator(args)
   # Read the contents of the token file
   #
   # @param [String] file The file to read from
-  # @return [Array<Array<String>>]the contents of the token file
+  # @return [Array<Array<String>>] the contents of the token file
   def self.read_tokens(file)
     tokens = read_vote_csv file
     tokens.delete_at(0) # remove headers