class UsersController
  def self.stat_image(user, member, stats=nil)
    size_width = 570;
    size_height = 376;
    stats_frame =  "images/LevelUp.png"
    level_up = "images/LevelUpFont.png"
    user_url_img = "images/Image_Builder/user_url_img.png"
    output_file =  "images/Image_Builder/LevelUp"

    begin
      Down.download(member.avatar_url, destination: user_url_img)
    rescue Down::NotFound
      user_url_img = "images/Image_Builder/unknown_img.png"
    end

    #Gif Destroyer
    i = Magick::ImageList.new(user_url_img)
    i[0].write(user_url_img) if i.count > 1

    if stats
      merge_image(
        [stats_frame, level_up, user_url_img],
        output_file,
        size_width,
        size_height,
        [nil, nil, 19],
        [nil, nil, 92],
        [size_width, size_width, 165],
        [size_height, size_height, 165]
      )
    else
      merge_image(
        [stats_frame, user_url_img],
        output_file,
        size_width,
        size_height,
        [nil, 19],
        [nil, 92],
        [size_width, 165],
        [size_height, 165]
      )
    end

    last_level = user.level == 1 ? 0 : ((user.level + 4) **3) / 10.0
    this_level = user.next_level - last_level
    ratio = 1 - ((user.next_level - user.boosted_xp).to_f / this_level)

    user_name = member.nickname || member.name
    short_name = user_name.length > 15 ? "#{user_name[0..14]}..." : user_name
    rank = User.order(unboosted_xp: :desc)
    user_rank = rank.index{ |r| r.id == user.id } + 1

    gc = Draw.new

    gc.font('OpenSans-SemiBold.ttf')

    gc.stroke('#39c4ff').fill('#39c4ff')
    gc.rectangle(42, 48, 42 + (95 * ratio), 48 + 3)

    gc.stroke('none').fill('black')
    gc.pointsize('15')
    gc.text(15,25, short_name)
    gc.text(40, 45, "Lv.#{user.level}")
    gc.text(15, 290, "Rank: #{user_rank}")
    gc.text(40, 65, "Exp: #{user.boosted_xp}")

    gc.stroke('white').fill('white')
    gc.pointsize('30')
    gc.text(40,330, user_name)
    gc.text(40,360, "reached level #{user.level}!") if stats
    gc.text(40,360, "is level #{user.level}!") if !stats

    if stats
      gc.stroke('none').fill('black')
      gc.pointsize('18')
      gc.text(450, 97, stats['hp'].to_s)
      gc.text(450, 127, stats['attack'].to_s)
      gc.text(450, 159, stats['defense'].to_s)
      gc.text(450, 191, stats['sp_attack'].to_s)
      gc.text(450, 222, stats['sp_defense'].to_s)
      gc.text(450, 255, stats['speed'].to_s)

      gc.stroke('none').fill('maroon')
      gc.text(505, 97, "+ #{stats['hp'] - user.hp}")
      gc.text(505, 127, "+ #{stats['attack']- user.attack}")
      gc.text(505, 159, "+ #{stats['defense'] - user.defense}")
      gc.text(505, 191, "+ #{stats['sp_attack'] - user.sp_attack}")
      gc.text(505, 222, "+ #{stats['sp_defense']- user.sp_defense}")
      gc.text(505, 255, "+ #{stats['speed'] - user.speed}")
    else
      gc.stroke('none').fill('black')
      gc.pointsize('18')
      gc.text(450, 97, user.hp.to_s)
      gc.text(450, 127, user.attack.to_s)
      gc.text(450, 159, user.defense.to_s)
      gc.text(450, 191, user.sp_attack.to_s)
      gc.text(450, 222, user.sp_defense.to_s)
      gc.text(450, 255, user.speed.to_s)
    end

    u = Magick::ImageList.new("#{output_file}.png")
    gc.draw(u[0])

    u.write("#{output_file}.png")
    "#{output_file}.png"
  end

  def fetch_ghost_users(event)
    users = User.all
    ghosts = []

    users.each do |u|
      ghosts.push("<@#{u.id}>") if event.server.member(u.id).nil?
    end

    Embed.new(title: "Ghost Members", description: ghosts.join(", "))
  end
end