require 'test_helper'

require 'vedeu/api/view'
require 'vedeu'

module Vedeu
  module API
    describe View do
      before do
        InterfaceStore.reset
        Interface.save('testing_view') do
          x      1
          y      1
          colour  foreground: '#ffffff', background: '#000000'
          centred false
        end
      end

      it 'builds a basic view' do
        Vedeu.view 'testing_view' do
          line do
            text '1. A line of text.'
            text '2. Another line of text.'
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [
                  {
                    text:  '1. A line of text.',
                  }, {
                    text:  '2. Another line of text.',
                  }
                ]
              }
            ]
          }
        )
      end

      it 'handles coloured lines' do
        Vedeu.view 'testing_view' do
          line do
            text '1. Line without colours.'
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [{ text: '1. Line without colours.' }]
              }
            ]
          }
        )
      end

      it 'handles coloured lines' do
        Vedeu.view 'testing_view' do
          line do
            colour '#ff0000', '#ffff00'
            text   '2. Line with colours.'
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  { background: '#ff0000', foreground: '#ffff00' },
                style:   [],
                streams: [{ text: '2. Line with colours.' }]
              }
            ]
          }
        )
      end

      it 'handles coloured lines' do
        Vedeu.view 'testing_view' do
          line do
            colour foreground: '#a7ff00', background: '#005700'
            text   '3. Line with explicit colour declaration.'
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  { background: '#005700', foreground: '#a7ff00' },
                style:   [],
                streams: [{ text: '3. Line with explicit colour declaration.' }]
              }
            ]
          }
        )
      end

      it 'handles coloured lines' do
        Vedeu.view 'testing_view' do
          line do # actually uses streams
            foreground '#ff00ff' do
              text '4. Line with only foreground set.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [{
                  colour: { foreground: '#ff00ff' },
                  style:  [],
                  text:   '4. Line with only foreground set.'
                }]
              }
            ]
          }
        )
      end

      it 'handles coloured lines' do
        Vedeu.view 'testing_view' do
          line do # actually uses streams
            background '#00ff00' do
              text '5. Line with only background set.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [{
                  colour: { background: '#00ff00' },
                  style:  [],
                  text:   '5. Line with only background set.'
                }]
              }
            ]
          }
        )
      end

      it 'handles styles' do
        Vedeu.view 'testing_view' do
          line do
            style 'normal'
            text  '1. Line with a normal style.'
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour:  {},
                style:   ['normal'],
                streams: [{
                  text: '1. Line with a normal style.'
                }]
              }
            ]
          }
        )
      end

      it 'handles styles' do
        Vedeu.view 'testing_view' do
          line do
            style 'underline'
            text  '2. Line with an underline style.'
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour:  {},
                style:   ['underline'],
                streams: [{
                  text: '2. Line with an underline style.'
                }]
              }
            ]
          }
        )
      end

      it 'handles styles' do
        Vedeu.view 'testing_view' do
          line do # actually uses streams
            style 'normal' do
              text '3. Line with a normal style.'
            end
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [{
                  colour: {},
                  style:  ['normal'],
                  text:   '3. Line with a normal style.'
                }]
              }
            ]
          }
        )
      end

      it 'handles styles' do
        Vedeu.view 'testing_view' do
          line do # actually uses streams
            style 'underline' do
              text '4. Line with an underlined style.'
            end
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [{
                  colour: {},
                  style:  ['underline'],
                  text:   '4. Line with an underlined style.'
                }]
              }
            ]
          }
        )
      end

      it 'handles streams, which means sub-line colours and styles' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              text 'A stream of text.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [
                  {
                    colour: {},
                    style:  [],
                    text:   'A stream of text.'
                  }
                ]
              }
            ]
          }
        )
      end

      it 'handles streams, which means sub-line colours and styles' do
        Vedeu.view 'testing_view' do
          line do
            stream do # Stream is an 'explicit declaration'.
                      # We don't need it unless we want to add colours and styles.
                      # See below.
              text '1. Two streams of text, these will be'
            end

            stream do
              text ' on the same line- note the space.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [
                  {
                    colour: {},
                    style:  [],
                    text:   '1. Two streams of text, these will be'
                  }, {
                    colour: {},
                    style:  [],
                    text:   ' on the same line- note the space.'
                  }
                ]
              }
            ]
          }
        )
      end

      it 'handles streams, which means sub-line colours and styles' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              text '2. Streams can have'
            end

            stream do
              colour foreground: '#ff0000', background: '#00ff00'
              text   ' colours too.'
            end
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour: {},
                style: [],
                streams: [
                  {
                    colour: {},
                    style: [],
                    text: '2. Streams can have'
                  }, {
                    colour: {
                      foreground: '#ff0000',
                      background: '#00ff00'
                    },
                    style: [],
                    text: ' colours too.'
                  }
                ]
              }
            ]
          }
        )
      end

      it 'handles streams, which means sub-line colours and styles' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              text '3. Streams can have'
            end

            stream do
              style 'underline'
              text  ' styles too.'
            end
          end
        end.must_equal(
          {
            name: 'testing_view',
            lines: [
              {
                colour: {},
                style: [],
                streams: [
                  {
                    colour: {},
                    style: [],
                    text: '3. Streams can have'
                  }, {
                    colour: {},
                    style: ['underline'],
                    text: ' styles too.'
                  }
                ]
              }
            ]
          }
        )
      end

      it 'handles alignment' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              width 80
              text  'This is aligned left, and padded with spaces.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [{
              colour:  {},
              style:   [],
              streams: [{
                colour: {},
                style:  [],
                width:  80,
                text:   'This is aligned left, and padded with spaces.'
              }]
            }]
          }
        )
      end

      it 'handles alignment' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              width 80
              align :left # explicit
              text  'This is aligned left, and padded with spaces.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [{
              colour:  {},
              style:   [],
              streams: [{
                colour: {},
                style:  [],
                width:  80,
                align:  :left,
                text:   'This is aligned left, and padded with spaces.'
              }]
            }]
          }
        )
      end

      it 'handles alignment' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              width 80
              align :centre
              text  'This is aligned centrally, and padded with spaces.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [{
              colour:  {},
              style:   [],
              streams: [{
                colour: {},
                style:  [],
                width:  80,
                align:  :centre,
                text:   'This is aligned centrally, and padded with spaces.'
              }]
            }]
          }
        )
      end

      it 'handles alignment' do
        Vedeu.view 'testing_view' do
          line do
            stream do
              width 80
              align :right
              text  'This is aligned right, and padded with spaces.'
            end
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [{
              colour:  {},
              style:   [],
              streams: [{
                colour: {},
                style:  [],
                width:  80,
                align:  :right,
                text:   'This is aligned right, and padded with spaces.'
              }]
            }]
          }
        )
      end

      it 'handles multiple colour and text statements correctly' do
        Vedeu.view 'testing_view' do
          line do
            foreground('#ffff00') { text "\u{25B2}" }
            text " Prev"

            foreground('#ffff00') { text "\u{25BC}" }
            text " Next"

            foreground('#ffff00') { text "\u{21B2}" }
            text " Select"

            foreground('#ffff00') { text "\u{2395}" }
            text " Pause"

            foreground('#ffff00') { text "Q" }
            text " Quit"
          end
        end.must_equal(
          {
            name:  'testing_view',
            lines: [
              {
                colour:  {},
                style:   [],
                streams: [
                  {
                    colour: {
                      foreground: "#ffff00"
                    },
                    style: [],
                    text: "▲"
                  }, {
                    text: " Prev"
                  }, {
                    colour: {
                      foreground: "#ffff00"
                    },
                    style: [],
                    text: "▼"
                  }, {
                    text: " Next"
                  }, {
                    colour: {
                      foreground: "#ffff00"
                    },
                    style: [],
                    text: "↲"
                  }, {
                    text: " Select"
                  }, {
                    colour: {
                      foreground: "#ffff00"
                    },
                    style: [],
                    text: "⎕"
                  }, {
                    text: " Pause"
                  }, {
                    colour: {
                      foreground: "#ffff00"
                    },
                    style: [],
                    text: "Q"
                  }, {
                    text: " Quit"
                  }
                ]
              }
            ]
          }
        )
      end
    end
  end
end