370 lines
9 KiB
Ruby
370 lines
9 KiB
Ruby
# frozen_string_literal: true
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require 'tox'
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require 'thread'
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require 'faker'
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require 'screen'
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class Main
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SAVEDATA_FILENAME = File.expand_path '../savedata', __dir__
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def self.inherited(_base)
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raise "#{self} is final"
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end
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def self.mutex
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(@mutex ||= Mutex.new).tap { freeze }
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end
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def initialize
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raise "#{self.class} is singleton" unless self.class.mutex.try_lock
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call
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end
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private
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def call
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before_loop
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before_iteration
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@tox_client.run
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ensure
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after_loop
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end
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def before_loop
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tox_options = Tox::Options.new
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tox_options.savedata = File.binread SAVEDATA_FILENAME if File.exist? SAVEDATA_FILENAME
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@tox_client = Tox::Client.new tox_options
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@tox_client.on_iteration do
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after_iteration
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before_iteration
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end
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@tox_client.on_friend_request do |public_key|
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@tox_client.friend_add_norequest public_key
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end
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@screen = Screen.new
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Style.default = Style.new
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end
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def after_loop
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@screen&.close
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File.binwrite SAVEDATA_FILENAME, @tox_client.savedata if @tox_client
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end
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def before_iteration
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@screen.props = state
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@screen.render
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end
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def after_iteration
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@screen.poll
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end
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def state
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@state ||= {
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x: 0,
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y: 0,
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width: Curses.stdscr.maxx,
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height: Curses.stdscr.maxy,
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focus: :sidebar,
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focused: true,
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on_window_left: method(:on_window_left),
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on_window_right: method(:on_window_right),
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on_menu_up: method(:on_menu_up),
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on_menu_down: method(:on_menu_down),
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on_new_message_putc: method(:on_new_message_putc),
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on_new_message_left: method(:on_new_message_left),
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on_new_message_right: method(:on_new_message_right),
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on_new_message_home: method(:on_new_message_home),
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on_new_message_end: method(:on_new_message_end),
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on_new_message_backspace: method(:on_new_message_backspace),
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on_new_message_delete: method(:on_new_message_delete),
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sidebar: {
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x: 0,
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y: 0,
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width: Widgets::Logo::WIDTH,
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height: Curses.stdscr.maxy,
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focus: :menu,
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focused: true,
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logo: {
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x: 0,
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y: 0,
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width: Widgets::Logo::WIDTH,
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height: Widgets::Logo::HEIGHT,
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}.freeze,
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menu: {
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x: 0,
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y: Widgets::Logo::HEIGHT,
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width: Widgets::Logo::WIDTH,
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height: Curses.stdscr.maxy - Widgets::Logo::HEIGHT,
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focused: true,
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active: 0,
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top: 0,
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items: [],
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}.freeze,
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}.freeze,
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chat: {
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x: Widgets::Logo::WIDTH,
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y: 0,
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width: Curses.stdscr.maxx - Widgets::Logo::WIDTH,
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height: Curses.stdscr.maxy,
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focus: :new_message,
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focused: false,
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info: {
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x: Widgets::Logo::WIDTH,
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y: 0,
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width: Curses.stdscr.maxx - Widgets::Logo::WIDTH,
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height: 2,
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focused: false,
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name: Faker::Name.name,
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public_key: SecureRandom.hex(32),
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}.freeze,
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new_message: {
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x: Widgets::Logo::WIDTH,
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y: Curses.stdscr.maxy - 1,
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width: Curses.stdscr.maxx - Widgets::Logo::WIDTH,
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height: 1,
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focused: false,
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text: '',
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cursor_pos: 0,
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}.freeze,
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history: {
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x: Widgets::Logo::WIDTH,
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y: 2,
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width: Curses.stdscr.maxx - Widgets::Logo::WIDTH,
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height: Curses.stdscr.maxy - 3,
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focused: true,
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messages: 1.upto(100).map do
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{
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out: rand <= 0.2,
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time: Faker::Time.forward,
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name: Faker::Name.name,
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text: Faker::Lorem.sentence,
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}
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end,
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}.freeze,
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}.freeze,
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}.freeze
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end
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def on_window_left
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@state = state.merge(
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focus: :sidebar,
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sidebar: state[:sidebar].merge(
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focused: true,
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logo: state[:sidebar][:logo].merge(focused: state[:sidebar][:focus] == :logo).freeze,
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menu: state[:sidebar][:menu].merge(focused: state[:sidebar][:focus] == :menu).freeze,
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).freeze,
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chat: state[:chat].merge(
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focused: false,
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info: state[:chat][:info].merge(focused: false).freeze,
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new_message: state[:chat][:new_message].merge(focused: false).freeze,
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history: state[:chat][:history].merge(focused: false).freeze,
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).freeze,
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).freeze
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end
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def on_window_right
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@state = state.merge(
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focus: :chat,
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sidebar: state[:sidebar].merge(
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focused: true,
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logo: state[:sidebar][:logo].merge(focused: false).freeze,
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menu: state[:sidebar][:menu].merge(focused: false).freeze,
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).freeze,
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chat: state[:chat].merge(
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focused: false,
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info: state[:chat][:info].merge(focused: state[:chat][:focus] == :info).freeze,
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new_message: state[:chat][:new_message].merge(focused: state[:chat][:focus] == :new_message).freeze,
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history: state[:chat][:history].merge(focused: state[:chat][:focus] == :history).freeze,
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).freeze,
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).freeze
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end
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def on_menu_up
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@state = state.merge(
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sidebar: state[:sidebar].merge(
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menu: self.class.update_menu(
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state[:sidebar][:menu],
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active: state[:sidebar][:menu][:active] - 1,
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),
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).freeze,
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).freeze
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end
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def on_menu_down
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@state = state.merge(
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sidebar: state[:sidebar].merge(
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menu: self.class.update_menu(
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state[:sidebar][:menu],
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active: state[:sidebar][:menu][:active] + 1,
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),
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).freeze,
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).freeze
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end
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def on_new_message_putc(char)
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text = state[:chat][:new_message][:text]
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cursor_pos = state[:chat][:new_message][:cursor_pos]
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: "#{text[0...cursor_pos]}#{char}#{text[cursor_pos..-1]}",
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cursor_pos: cursor_pos + 1,
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),
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).freeze,
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).freeze
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end
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def on_new_message_left
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: state[:chat][:new_message][:text],
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cursor_pos: state[:chat][:new_message][:cursor_pos] - 1,
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),
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).freeze,
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).freeze
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end
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def on_new_message_right
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: state[:chat][:new_message][:text],
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cursor_pos: state[:chat][:new_message][:cursor_pos] + 1,
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),
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).freeze,
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).freeze
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end
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def on_new_message_home
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: state[:chat][:new_message][:text],
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cursor_pos: 0,
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),
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).freeze,
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).freeze
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end
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def on_new_message_end
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: state[:chat][:new_message][:text],
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cursor_pos: state[:chat][:new_message][:text].length,
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),
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).freeze,
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).freeze
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end
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def on_new_message_backspace
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text = state[:chat][:new_message][:text]
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cursor_pos = state[:chat][:new_message][:cursor_pos]
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return unless cursor_pos.positive?
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: "#{text[0...(cursor_pos - 1)]}#{text[cursor_pos..-1]}",
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cursor_pos: cursor_pos - 1,
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),
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).freeze,
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).freeze
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end
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def on_new_message_delete
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text = state[:chat][:new_message][:text]
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cursor_pos = state[:chat][:new_message][:cursor_pos]
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return if cursor_pos > text.length
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@state = state.merge(
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chat: state[:chat].merge(
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new_message: self.class.update_new_message(
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state[:chat][:new_message],
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text: "#{text[0...cursor_pos]}#{text[(cursor_pos + 1)..-1]}",
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cursor_pos: cursor_pos,
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),
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).freeze,
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).freeze
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end
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class << self
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def update_menu(state, active:)
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top = state[:top]
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if active.negative?
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active = state[:items].count - 1
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elsif active >= state[:items].count
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active = 0
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end
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if active < state[:top]
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top = active
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elsif active >= state[:top] + state[:height]
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top = active - state[:height] + 1
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end
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state.merge(
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active: active,
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top: top,
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).freeze
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end
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def update_new_message(state, text:, cursor_pos:)
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if cursor_pos.negative?
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cursor_pos = 0
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elsif cursor_pos > text.length
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cursor_pos = text.length
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end
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state.merge(
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text: text,
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cursor_pos: cursor_pos,
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).freeze
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end
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end
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end
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