Class: Coingecko::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/coingecko/cli.rb

Constant Summary collapse

@@commands = 
["ls", "list", "b", "back", "menu", "m", "q", "quit", "exit", "exit!", "find", "f"]

Instance Method Summary collapse

Instance Method Details

#another_selection? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/coingecko/cli.rb', line 20

def another_selection?
  puts "Would you like make another selection?"
  input = gets.strip.downcase
  if input == "y" || input == "yes"
    main_menu
  elsif input == "n" || input == "no" 
    quit
    return
  else 
   check_selection(input)
  end  
end

#check_selection(input) ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 48

def check_selection(input) 
    case input
    when "ls", "list"
      list_top_coins 
    when "menu", "m", "back", "b"
      main_menu
    when "q", "quit", "exit", "exit!"
      quit  
    when "global", "g", "gen", "general" 
      print_global_info
    when "find", "f"  
      find
    else   
      puts "Sorry! Did not Understand that."
      sleep 1
      puts "Going back.."
      sleep 1
      selection
  end
end

#decimal_separator(number) ⇒ Object

Helper Method. Separates numbers with decimals or returns ∞ when NaN.



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# File 'lib/coingecko/cli.rb', line 91

def decimal_separator(number) #Helper Method. Separates numbers with decimals or returns ∞ when NaN.
   if number.is_a? Numeric
      whole, decimal = number.to_s.split(".")
      whole_with_commas = whole.chars.to_a.reverse.each_slice(3).map(&:join).join(",").reverse
      [whole_with_commas, decimal].compact.join(".")
  else 
    number = "∞"
    number
  end 
end

#find ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 138

def find 
  puts "Which coin would you like to find? To go back, please type back."
  input = gets.strip.downcase 
  
  Coingecko::Global.get_all_coins_list
  all_coins_basic = Coingecko::Global.all_coins_list
  returned_id = ""
  all_coins_basic.each do |coin|
    if coin.name.strip.downcase == input
      returned_id = coin.id
    end
   end 
 
 if !returned_id.empty?
      sleep 1
    puts "\nCoin match found!\n\n"
      sleep 2
    print_coin(returned_id)
 else 
   check_selection(input) 
 end 
  
end

#list_top_coins ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 43

def list_top_coins
    list = Coingecko::Coin.new_from_top_100
    print_top(list)
end

#main_menu ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 34

def main_menu
  puts "\n-To list the top 100 coins type ls."
  puts "-To find a coin by name, type find."
  puts "-To get general info, type gen."
  puts "-To QUIT: please type q."
  sleep 1
  selection
end

#print_coin(id, currency = "usd") ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 162

def print_coin(id, currency="usd")
  puts "Retrieving your coin."
    sleep 0.5
  puts ".."  
    sleep 0.5
  puts "....\n\n"  
    sleep 0.5
  coin = Coingecko::Coin.get_coin(id)
  rows = []
    rows << [ "----------- #{coin.name}(#{coin.symbol}) - Rank##{coin.market_cap_rank} (Real-Time) ------------"]
      sleep 2
    rows << [ "\nCurrent Price: $#{decimal_separator(coin.market_data["current_price"][currency])} | Market Cap: $#{decimal_separator(coin.market_data["market_cap"][currency])}"]
    rows << [ "24hr Trading Vol: $#{decimal_separator(coin.market_data["total_volume"][currency])}"]
    rows << [ "Available Supply: #{decimal_separator(coin.market_data["total_supply"])} / #{decimal_separator(coin.market_data["circulating_supply"])}\n\n" ]
  table_printer(rows)
      sleep 2
    puts  "\nDESCRIPTION:\n"
      sleep 2
    puts  coin.description["en"].gsub(/<\/?[^>]*>/, "") #.gsub strips HTML tags
      sleep 2  
    puts "\n----------------QUICK FACTS---------------\n"
      sleep 1  
    rows_two = []
    rows_two << ["Percentage Change: \n(7 Days) =>(30 Days) =>(1 Year)"]
    rows_two << [ "(#{round_if_num(coin.market_data["price_change_percentage_7d_in_currency"][currency])}%        #{round_if_num(coin.market_data["price_change_percentage_30d_in_currency"][currency])}%      #{round_if_num(coin.market_data["price_change_percentage_1y_in_currency"][currency])}%  "] 
    rows_two << [ "\n\nAll-Time High |  ATH Date  | Since ATH "]
    rows_two << ["#{coin.market_data["ath"][currency]}          #{coin.market_data["ath_date"][currency][0..9]}      #{round_if_num(coin.market_data["ath_change_percentage"][currency])}%"]
  table_printer(rows_two)
  rows_three = [] 
    rows_three << ["Website: #{coin.links["homepage"][0]}"]
    rows_three << ["Reddit: #{coin.links["subreddit_url"]}"]
    rows_three << ["Github: #{coin.links["repos_url"]["github"][0]} "]
    rows_three << ["Twitter Handle: @#{coin.links["twitter_screen_name"]}"]
    rows_three << ["Genesis Date: #{coin.genesis_date}"] if coin.genesis_date
    rows_three << ["Last Updated: #{coin.last_updated[0..9]}"]
      sleep 2
  table_printer(rows_three)
      sleep 2
  another_selection?
end

#print_global_info(currency = "usd") ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 115

def print_global_info(currency="usd")
  global_info = Coingecko::Global.new_from_global
  rows = []
  puts "Returning Real-Time Global Info from Coingecko..."
    sleep 2
  puts "\nGlobal Info:\n"
    sleep 0.5
    rows << ["Total Cryptocurrencies: #{global_info.data["active_cryptocurrencies"]}"]
    rows << ["Total Market Cap: #{decimal_separator(global_info.data["total_market_cap"][currency])}"]
    rows << ["Total Volume: #{decimal_separator(global_info.data["total_volume"][currency])}"]
  table_printer(rows)
    sleep 2
  rows_two = []
  puts "Market Cap Share (Top 10):\n"
    sleep 1.5
    global_info.data["market_cap_percentage"].each do |k, v|
    rows_two << ["#{k.upcase}: #{round_if_num(v)}%"] 
    end 
  table_printer(rows_two)
    sleep 2
  another_selection?
end

#print_top(list) ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 69

def print_top(list)
  puts "Here are the Top 100 Coins!"
    sleep 1.0
  puts ".."  
    sleep 1.0
  puts "....\n\n"  
    sleep 0.5
  Coingecko::Coin.top_coins.each_with_index do |coin, index|
  	puts "#{index + 1}. #{coin.name}"
  end 
    sleep 0.5
  puts "\n\nWhich coin would you like to check out? Please type a number 1-100."
  answer = gets.chomp.to_i 
  
  if answer > 0 #if string converted to_i will have value of 0
    id = Coingecko::Coin.top_coins[answer - 1].id
    print_coin(id)
  else
    check_selection(answer) 
  end   
end

#quit ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 203

def quit
  sleep 0.5
  puts "\nGoodbye! See you next time."
  sleep 1
  system('clear') 
end

#round_if_num(num) ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 102

def round_if_num(num)
  if num.is_a? Numeric
      num.round(1)    
  else 
      "Coingecko Returned N/A"
  end 
end

#run ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 4

def run 
  welcome
  sleep 0.5
  selection 
end

#selection ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 14

def selection 
  puts "\nWhat would you like to do? For the main menu please type menu."
  input = gets.strip.downcase 
  self.check_selection(input) #from now on self will be implicit as method receiver.
end

#table_printer(rows) ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 110

def table_printer(rows)
  table = Terminal::Table.new :rows => rows
  puts table
end

#welcome ⇒ Object 



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# File 'lib/coingecko/cli.rb', line 10

def welcome 
  puts "\nWelcome to Coingecko! Powered by CoinGecko API.\n"
end