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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Clippy do
   6   @moduledoc false
   7
   8   # No software is complete until they have a Clippy implementation.
   9   # A ballmer peak _may_ be required to change this module.
  10
  11   def tip do
  12     tips()
  13     |> Enum.random()
  14     |> puts()
  15   end
  16
  17   def tips do
  18     host = Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host])
  19
  20     [
  21       "“πλήρωμα” is “pleroma” in greek",
  22       "For an extended Pleroma Clippy Experience, use the “Redmond” themes in Pleroma FE settings",
  23       "Staff accounts and MRF policies of Pleroma instances are disclosed on the NodeInfo endpoints for easy transparency!\n
  24 - https://catgirl.science/misc/nodeinfo.lua?#{host}
  25 - https://fediverse.network/#{host}/federation",
  26       "Pleroma can federate to the Dark Web!\n
  27 - Tor: https://git.pleroma.social/pleroma/pleroma/wikis/Easy%20Onion%20Federation%20(Tor)
  28 - i2p: https://git.pleroma.social/pleroma/pleroma/wikis/I2p%20federation",
  29       "Lists of Pleroma instances:\n\n- http://distsn.org/pleroma-instances.html\n- https://fediverse.network/pleroma\n- https://the-federation.info/pleroma",
  30       "Pleroma uses the LitePub protocol - https://litepub.social",
  31       "To receive more federated posts, subscribe to relays!\n
  32 - How-to: https://git.pleroma.social/pleroma/pleroma/wikis/Admin%20tasks#relay-managment
  33 - Relays: https://fediverse.network/activityrelay"
  34     ]
  35   end
  36
  37   @spec puts(String.t() | [[IO.ANSI.ansicode() | String.t(), ...], ...]) :: nil
  38   def puts(text_or_lines) do
  39     import IO.ANSI
  40
  41     lines =
  42       if is_binary(text_or_lines) do
  43         String.split(text_or_lines, ~r/\n/)
  44       else
  45         text_or_lines
  46       end
  47
  48     longest_line_size =
  49       lines
  50       |> Enum.map(&charlist_count_text/1)
  51       |> Enum.sort(&>=/2)
  52       |> List.first()
  53
  54     pad_text = longest_line_size
  55
  56     pad =
  57       for(_ <- 1..pad_text, do: "_")
  58       |> Enum.join("")
  59
  60     pad_spaces =
  61       for(_ <- 1..pad_text, do: " ")
  62       |> Enum.join("")
  63
  64     spaces = "      "
  65
  66     pre_lines = [
  67       "  /  \\#{spaces}  _#{pad}___",
  68       "  |  |#{spaces} / #{pad_spaces}   \\"
  69     ]
  70
  71     for l <- pre_lines do
  72       IO.puts(l)
  73     end
  74
  75     clippy_lines = [
  76       "  #{bright()}@  @#{reset()}#{spaces} ",
  77       "  || ||#{spaces}",
  78       "  || ||   <--",
  79       "  |\\_/|      ",
  80       "  \\___/      "
  81     ]
  82
  83     noclippy_line = "             "
  84
  85     env = %{
  86       max_size: pad_text,
  87       pad: pad,
  88       pad_spaces: pad_spaces,
  89       spaces: spaces,
  90       pre_lines: pre_lines,
  91       noclippy_line: noclippy_line
  92     }
  93
  94     # surrond one/five line clippy with blank lines around to not fuck up the layout
  95     #
  96     # yes this fix sucks but it's good enough, have you ever seen a release of windows
  97     # without some butched features anyway?
  98     lines =
  99       if length(lines) == 1 or length(lines) == 5 do
 100         [""] ++ lines ++ [""]
 101       else
 102         lines
 103       end
 104
 105     clippy_line(lines, clippy_lines, env)
 106   rescue
 107     e ->
 108       IO.puts("(Clippy crashed, sorry: #{inspect(e)})")
 109       IO.puts(text_or_lines)
 110   end
 111
 112   defp clippy_line([line | lines], [prefix | clippy_lines], env) do
 113     IO.puts([prefix <> "| ", rpad_line(line, env.max_size)])
 114     clippy_line(lines, clippy_lines, env)
 115   end
 116
 117   # more text lines but clippy's complete
 118   defp clippy_line([line | lines], [], env) do
 119     IO.puts([env.noclippy_line, "| ", rpad_line(line, env.max_size)])
 120
 121     if lines == [] do
 122       IO.puts(env.noclippy_line <> "\\_#{env.pad}___/")
 123     end
 124
 125     clippy_line(lines, [], env)
 126   end
 127
 128   # no more text lines but clippy's not complete
 129   defp clippy_line([], [clippy | clippy_lines], env) do
 130     if env.pad do
 131       IO.puts(clippy <> "\\_#{env.pad}___/")
 132       clippy_line([], clippy_lines, %{env | pad: nil})
 133     else
 134       IO.puts(clippy)
 135       clippy_line([], clippy_lines, env)
 136     end
 137   end
 138
 139   defp clippy_line(_, _, _) do
 140   end
 141
 142   defp rpad_line(line, max) do
 143     pad = max - (charlist_count_text(line) - 2)
 144     pads = Enum.join(for(_ <- 1..pad, do: " "))
 145     [IO.ANSI.format(line), pads <> " |"]
 146   end
 147
 148   defp charlist_count_text(line) do
 149     if is_list(line) do
 150       text = Enum.join(Enum.filter(line, &is_binary/1))
 151       String.length(text)
 152     else
 153       String.length(line)
 154     end
 155   end
 156 end