setup

#!/usr/bin/env ruby
# frozen_string_literal: true

require "pathname"

# path to your application root.
APP_ROOT = Pathname.new File.expand_path("../../", __FILE__)

ROW_SIZE = 80

class String
  COLORS = {
    red: 31,
    green: 32,
    yellow: 33,
    blue: 34
  }
  def colorize(color)
    "\033[#{COLORS[color]}m#{self}\033[0m"
  end
end

def puts_section(info, &block)
  puts info
  puts "-" * ROW_SIZE
  yield block
  puts "-" * ROW_SIZE
  puts ""
end

def puts_line(info, &block)
  print info
  rsize = ROW_SIZE - info.length
  success = yield block
  if success == false
    puts "[Failed]".rjust(rsize).colorize(:red)
  else
    puts "[Done]".rjust(rsize).colorize(:green)
  end
end

def puts_line_with_yn(info, &block)
  print info
  rsize = ROW_SIZE - info.length
  success = yield block
  if success == false
    puts "[No]".rjust(rsize).colorize(:red)
  else
    puts "[Yes]".rjust(rsize).colorize(:green)
  end
end

def replace_file(file_name, from, to)
  File.open(file_name, "r+") do |f|
    out = ""
    f.each do |line|
      out += line.gsub(from, to)
    end
    f.pos = 0
    f.print out
    f.truncate(f.pos)
  end
end

Dir.chdir APP_ROOT do
  # This script is a starting point to setup your application.
  # Add necessary setup steps to this file.

  puts_section "Checking Package Dependencies..." do
    pkg_exist = true
    [["psql", "PostgreSQL 9.4+"], ["redis-server", "Redis 2.0+"]].each do |item|
      puts_line_with_yn item[1] do
        if `which #{item[0]}` == ""
          pkg_exist = false
          false
        else
          true
        end
      end
    end

    exit(0) if pkg_exist == false
  end

  puts_section "Installing dependencies" do
    system "gem install bundler --conservative"
    system "bundle check || bundle install"
  end

  puts_section "Installing NPM packages" do
    system "yarn"
  end

  # Config files
  puts_section "Configure" do
    %w[database redis secrets].each do |fname|
      system "cp config/#{fname}.yml.default config/#{fname}.yml"
    end

    print "Your Redis host (default: 127.0.0.1:6379):"
    host = gets.strip
    host = "127.0.0.1:6379" if host == ""
    replace_file("config/redis.yml", "127.0.0.1", host.split(":")[0])
    replace_file("config/redis.yml", "6379", host.split(":")[1])
  end

  puts_line "Seed default data..." do
    `RAILS_ENV=development bundle exec rake db:setup`
  end

  puts "\n== Removing old logs and tempfiles =="
  system "rm -f log/*"
  system "rm -rf tmp/cache"

  puts ""
  puts "Homeland Successfully Installed."
end