# encoding: utf-8

require 'shellwords'
require 'tty/prompt/reader/codes'

RSpec.describe TTY::Prompt::Reader::KeyEvent, '#from' do
  let(:keys) { TTY::Prompt::Reader::Codes.keys }

  it "parses backspace" do
    event = described_class.from(keys, "\x7f")
    expect(event.key.name).to eq(:backspace)
    expect(event.value).to eq("\x7f")
  end

  it "parses lowercase char" do
    event = described_class.from(keys, 'a')
    expect(event.key.name).to eq(:alpha)
    expect(event.value).to eq('a')
  end

  it "parses uppercase char" do
    event = described_class.from(keys, 'A')
    expect(event.key.name).to eq(:alpha)
    expect(event.value).to eq('A')
  end

  it "parses ctrl-a to ctrl-z inputs" do
    (1..26).zip('a'..'z').each do |code, char|
      next if ['i', 'j', 'm'].include?(char)
      event = described_class.from(keys, code.chr)
      expect(event.key.name).to eq(:"ctrl_#{char}")
      expect(event.value).to eq(code.chr)
    end
  end

  # F1-F12 keys
  {
    f1:  ["\eOP", "\e[11~"],
    f2:  ["\eOQ", "\e[12~"],
    f3:  ["\eOR", "\e[13~"],
    f4:  ["\eOS", "\e[14~"],
    f5:  [        "\e[15~"],
    f6:  [        "\e[17~"],
    f7:  [        "\e[18~"],
    f8:  [        "\e[19~"],
    f9:  [        "\e[20~"],
    f10: [        "\e[21~"],
    f11: [        "\e[23~"],
    f12: [        "\e[24~"]
  }.each do |name, codes|
    codes.each do |code|
      it "parses #{Shellwords.escape(code)} as #{name} key" do
        event = described_class.from(keys, code)
        expect(event.key.name).to eq(name)
        expect(event.key.meta).to eq(false)
        expect(event.key.ctrl).to eq(false)
        expect(event.key.shift).to eq(false)
      end
    end
  end

  # arrow keys & page navigation
  {
    up:    ["\e[A"],
    down:  ["\e[B"],
    right: ["\e[C"],
    left:  ["\e[D"],
    clear: ["\e[E"],
    end:   ["\e[F"],
    home:  ["\e[H"]
  }.each do |name, codes|
    codes.each do |code|
      it "parses #{Shellwords.escape(code)} as #{name} key" do
        event = described_class.from(keys, code)
        expect(event.key.name).to eq(name)
        expect(event.key.meta).to eq(false)
        expect(event.key.ctrl).to eq(false)
        expect(event.key.shift).to eq(false)
      end
    end
  end
end