Browse reddit via commandline.

command.line.reddit.rb

require 'json'
require 'rest_client'
require 'pry'
require 'awesome_print'
require 'colorize'

system("clear")
puts("Starting up...")

if ARGV.first
  if ARGV.first.include?("r/")
    reddit_hash = JSON.parse(RestClient.get('http://reddit.com/' + ARGV.first + '.json'))
  else
    reddit_hash = JSON.parse(RestClient.get('http://reddit.com/r/' + ARGV.first + '.json'))
  end
else
  reddit_hash = JSON.parse(RestClient.get('http://reddit.com/.json'))
end

class Post

  POSTS = []

  attr_accessor :permalink, :title, :id, :votes_diff

  def initialize(permalink, title, id, upvotes, downvotes)
    self.permalink = "http://reddit.com/" + permalink
    self.title = title
    self.id = id
    self.votes_diff = upvotes - downvotes

    POSTS << self
  end

  def self.launch_story(path)
    post_to_open = POSTS.select { |post| post.id == path }[0]
    `open #{post_to_open.permalink}`
  end

  def self.clear_posts
    while POSTS.size > 0
      POSTS.pop
    end
  end

end

def list_top_subreddits
  subreddit_hash = JSON.parse(RestClient.get('http://www.reddit.com/subreddits.json'))
  system("clear")
  subs = subreddit_hash["data"]["children"]
  puts "Top Subreddits"
  puts "--------------"
  subs.each do |sub|
    puts sub["data"]["display_name"].blue
  end
  puts ""
  print "Enter to continue: "
  gets.chomp
end

def help_me
  system("clear")
  puts "You can use the following commands:"
  puts "-----------------------------------"
  puts "1. 'main' to view stories on main page"
  puts "2. '<storyid>' to open story in browser"
  puts "3. 'subs' to view top subreddits"
  puts "4. '<subreddit_name>' to view top stories in that subreddit"
  puts "5. 'exit' to exit"
  puts ""
  print "Enter to continue: "
  gets.chomp
end

def make_posts(post_hash)
  data_hash = post_hash["data"]
  Post.new(data_hash["permalink"], data_hash["title"], data_hash["id"], data_hash["ups"], data_hash["downs"])
end

reddit_hash["data"]["children"].each do |post|
  unless post["data"]["over_18"] == true
    make_posts(post)
  end
end

while true
  system("clear")
  visible_posts = []
  longest_votes_diff = 0
  Post::POSTS.each do |post|
    if post.votes_diff.to_s.length > longest_votes_diff
      longest_votes_diff = post.votes_diff.to_s.length
    end
  end

  puts "id".ljust(2, " ") + "  " + "votes".center(longest_votes_diff, " ") + "  " + "story".center(60, " ")
  puts ("-"*2).ljust(2, " ") + '  ' +  ("-"*(longest_votes_diff + 1)).center(longest_votes_diff + 1, ' ') + '  ' + ('-'*60).center(60, ' ')
  
  i = 1
  Post::POSTS.each do |post|
    if i < 10
      formatted_i = " " + i.to_s
    else
      formatted_i = i
    end
    puts "#{formatted_i}".blue + '  ^'.green + post.votes_diff.to_s.ljust(longest_votes_diff, " ").green + '  ' + post.title[0..60].black
    visible_posts << post.id
    i += 1
  end
  puts ""
  print "Enter a command ('help' for options): "
  path = $stdin.gets.chomp

  if path == 'exit'
    break
  elsif path == ''
  elsif path == 'help'
    help_me
  elsif path == 'subs'
    puts "Loading top subreddits..."
    list_top_subreddits
  elsif (visible_posts.length < path.to_i || path.to_i == 0) && path.to_i.to_s == path
    puts "I don't recognize that story id. Please try again."
    sleep(1)
  elsif visible_posts.length >= path.to_i && path.to_i.to_s == path
    Post.launch_story(visible_posts[path.to_i - 1])
  # elsif path[0].to_i.to_s == path[0]
  #   puts "I don't recognize that story id. Please try again."
  #   sleep(1)
  else
    Post.clear_posts
    puts "Loading stories..."
    if path == 'main'
      reddit_hash = JSON.parse(RestClient.get('http://reddit.com/.json'))
    else
      begin
        reddit_hash = JSON.parse(RestClient.get('http://reddit.com/r/' + path + '.json'))
      rescue
        puts "I can't seem to find that subreddit. Please try again."
        sleep (1.2)
      end
    end
    reddit_hash["data"]["children"].each do |post|
      unless post["data"]["over_18"] == true
        make_posts(post)
      end
    end
  end
end