#!/usr/bin/ruby

require File.dirname(__FILE__) + '/gruff_test_case'

class TestGruffLine < GruffTestCase
  def test_should_render_with_transparent_theme
    g = Gruff::Line.new(400)
    g.title = 'Transparent Background'
    g.theme = {
        :colors => %w(black grey),
        :marker_color => 'grey',
        :font_color => 'black',
        :background_colors => 'transparent'
    }

    g.labels = {
        0 => '5/6',
        1 => '5/15',
        2 => '5/24',
        3 => '5/30',
    }
    g.data(:apples, [-1, 0, 4, -4])
    g.data(:peaches, [10, 8, 6, 3])
    g.write('test/output/line_transparent.png')
  end

  def test_very_small
    g = Gruff::Line.new(200)
    g.title = 'Very Small Line Chart 200px'
    g.labels = @labels
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write('test/output/line_very_small.png')
  end

  def test_line_graph_with_themes
    line_graph_with_themes()
    line_graph_with_themes(400)
  end

  def test_one_value
    g = Gruff::Line.new
    g.title = 'One Value'
    g.labels = {
        0 => '1',
        1 => '2'
    }
    g.data('one', 1)

    g.write('test/output/line_one_value.png')
  end

  def test_one_value_array
    g = Gruff::Line.new
    g.title = 'One Value in an Array'
    g.labels = {
        0 => '1',
        1 => '2'
    }
    g.data('one', [1])

    g.write('test/output/line_one_value_array.png')
  end


  def test_should_not_hang_with_0_0_100
    g = Gruff::Line.new(320)
    g.title = 'Hang Value Graph Test'
    g.data('test', [0, 0, 100])

    g.write('test/output/line_hang_value.png')
  end

  # TODO
  # def test_fix_crash
  #   g = Gruff::Line.new(370)
  #   g.title = "Crash Test"
  #   g.data "ichi", [5]
  #   g.data "ni", [0]
  #   g.data "san", [0]
  #   g.data "shi", [0]
  #   g.write("test/output/line_crash_fix_test.png")
  # end


  def test_line_small_values
    @datasets = [
        [:small, [0.1, 0.14356, 0.0, 0.5674839, 0.456]],
        [:small2, [0.2, 0.3, 0.1, 0.05, 0.9]]
    ]

    g = Gruff::Line.new
    g.title = 'Small Values Line Graph Test'
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write('test/output/line_small_values.png')

    g = Gruff::Line.new(400)
    g.title = 'Small Values Line Graph Test 400px'
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write('test/output/line_small_values_small.png')
  end

  def test_line_starts_with_zero
    @datasets = [
        [:first0, [0, 5, 10, 8, 18]],
        [:normal, [1, 2, 3, 4, 5]]
    ]

    g = Gruff::Line.new
    g.title = 'Small Values Line Graph Test'
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write('test/output/line_small_zero.png')

    g = Gruff::Line.new(400)
    g.title = 'Small Values Line Graph Test 400px'
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write('test/output/line_small_small_zero.png')
  end


  def test_line_large_values
    @datasets = [
        [:large, [100_005, 35_000, 28_000, 27_000]],
        [:large2, [35_000, 28_000, 27_000, 100_005]],
        [:large3, [28_000, 27_000, 100_005, 35_000]],
        [:large4, [1_238, 39_092, 27_938, 48_876]]
    ]

    g = Gruff::Line.new
    g.title = 'Very Large Values Line Graph Test'
    g.baseline_value = 50_000
    g.baseline_color = 'green'
    g.dot_radius = 15
    g.line_width = 3
    @datasets.each do |data|
      g.data(data[0], data[1])
    end

    g.write('test/output/line_large.png')
  end

  # def test_long_title
  #
  # end
  #
  # def test_add_colors
  #
  # end
  #

  def test_request_too_many_colors
    g = Gruff::Line.new
    g.title = 'More Sets Than in Color Array'
#     g.theme = {} # Sets theme with only black and white
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    @datasets.each do |data|
      g.data("#{data[0]}-B", data[1].map { |d| d + 20 })
    end
    g.write('test/output/line_more_sets_than_colors.png')
  end

  #
  # def test_add_data
  #
  # end

  def test_many_datapoints
    g = Gruff::Line.new
    g.title = 'Many Multi-Line Graph Test'
    g.labels = {
        0 => 'June',
        10 => 'July',
        30 => 'August',
        50 => 'September',
    }
    g.data('many points', (0..50).collect { |i| rand(100) })
    g.x_axis_label = 'Months'

    # Default theme
    g.write('test/output/line_many.png')
  end


  def test_similar_high_end_values
    @dataset = %w(29.43 29.459 29.498 29.53 29.548 29.589 29.619 29.66 29.689 29.849 29.878 29.74 29.769 29.79 29.808 29.828).collect { |i| i.to_f }

    g = Gruff::Line.new
    g.title = 'Similar High End Values Test'
    g.data('similar points', @dataset)
    g.write('test/output/line_similar_high_end_values.png')

    g = Gruff::Line.new
    g.title = 'Similar High End Values With Floor'
    g.data('similar points', @dataset)
    g.minimum_value = 0
    g.y_axis_label = 'Barometric Pressure'
    g.write('test/output/line_similar_high_end_values_with_floor.png')
  end

  def test_many_lines_graph_small
    g = Gruff::Line.new(400)
    g.title = 'Many Values Line Test 400px'
    g.labels = {
        0 => '5/6',
        10 => '5/15',
        20 => '5/24',
        30 => '5/30',
        40 => '6/4',
        50 => '6/16'
    }
    %w{jimmy jane philip arthur julie bert}.each do |student_name|
      g.data(student_name, (0..50).collect { |i| rand 100 })
    end

    # Default theme
    g.write('test/output/line_many_lines_small.png')
  end

  def test_graph_tiny
    g = Gruff::Line.new(300)
    g.title = 'Tiny Test 300px'
    g.labels = {
        0 => '5/6',
        10 => '5/15',
        20 => '5/24',
        30 => '5/30',
        40 => '6/4',
        50 => '6/16'
    }
    %w{jimmy jane philip arthur julie bert}.each do |student_name|
      g.data(student_name, (0..50).collect { |i| rand 100 })
    end

    # Default theme
    g.write('test/output/line_tiny.png')
  end

  def test_no_data
    g = Gruff::Line.new(400)
    g.title = 'No Data'
    # Default theme
    g.write('test/output/line_no_data.png')

    g = Gruff::Line.new(400)
    g.title = 'No Data Title'
    g.no_data_message = 'There is no data'
    g.write('test/output/line_no_data_msg.png')
  end


  def test_all_zeros
    g = Gruff::Line.new(400)
    g.title = 'All Zeros'

    g.data(:gus, [0, 0, 0, 0])

    # Default theme
    g.write('test/output/line_no_data_other.png')
  end


  def test_some_nil_points
    g = Gruff::Line.new
    g.title = 'Some Nil Points'

    @datasets = [
        [:data1, [1, 2, 3, nil, 3, 5, 6]],
        [:data2, [5, nil, nil, 5, nil, nil, 5]],
        [:data3, [4, nil, 2, 1, 0]],
        [:data4, [nil, nil, 3, 1, 2]]
    ]

    @datasets.each do |data|
      g.data(*data)
    end

    # Default theme
    g.write('test/output/line_some_nil_points.png')
  end

  def test_no_title
    g = Gruff::Line.new(400)
    g.labels = @labels
    @datasets.each do |data|
      g.data(data[0], data[1])
    end

    g.write('test/output/line_no_title.png')
  end

  def test_no_line_markers
    g = setup_basic_graph(400)
    g.title = 'No Line Markers'
    g.hide_line_markers = true
    g.write('test/output/line_no_line_markers.png')
  end

  def test_no_legend
    g = setup_basic_graph(400)
    g.title = 'No Legend'
    g.hide_legend = true
    g.write('test/output/line_no_legend.png')
  end

  def test_nothing_but_the_graph
    g = setup_basic_graph(400)
    g.title = 'THIS TITLE SHOULD NOT DISPLAY!!!'
    g.hide_line_markers = true
    g.hide_legend = true
    g.hide_title = true
    g.write('test/output/line_nothing_but_the_graph.png')
  end

  def test_legend_below_the_chart
    g = setup_basic_graph(400)
    g.title = 'Legend below the chart'
    g.legend_at_bottom = true
    g.write('test/output/line_legend_at_bottom.png')
  end

  def test_baseline_larger_than_data
    g = setup_basic_graph(400)
    g.title = 'Baseline Larger Than Data'
    g.baseline_value = 150
    g.write('test/output/line_large_baseline.png')
  end

  def test_hide_dots
    g = setup_basic_graph(400)
    g.title = 'Hide Dots'
    g.hide_dots = true
    g.write('test/output/line_hide_dots.png')
  end

  def test_hide_lines
    g = setup_basic_graph(400)
    g.title = 'Hide Lines'
    g.hide_lines = true
    g.write('test/output/line_hide_lines.png')
  end

  def test_wide_graph
    g = setup_basic_graph('800x400')
    g.title = 'Wide Graph'
    g.write('test/output/line_wide_graph.png')

    g = setup_basic_graph('400x200')
    g.title = 'Wide Graph Small'
    g.write('test/output/line_wide_graph_small.png')
  end

  def test_negative
    g = setup_pos_neg(800)
    g.write('test/output/line_pos_neg.png')

    g = setup_pos_neg(400)
    g.title = 'Pos/Neg Line Test Small'
    g.write('test/output/line_pos_neg_400.png')
  end

  def test_all_negative
    g = setup_all_neg(800)
    g.maximum_value = 0
    g.write('test/output/line_all_neg.png')
  end

  def test_all_negative_no_max_value
    g = setup_all_neg(800)
    g.write('test/output/line_all_neg_no_max.png')
  end

  def test_all_negative_400
    g = setup_all_neg(400)
    g.maximum_value = 0
    g.title = 'All Neg Line Test Small'
    g.write('test/output/line_all_neg_400.png')
  end

  def test_many_numbers
    g = Gruff::Line.new('400x170')
    g.title = 'Line Test, Many Numbers'

    data = [
        {:date => '01',
         :wpm => 0,
         :errors => 0,
         :accuracy => 0},
        {:date => '02',
         :wpm => 10,
         :errors => 2,
         :accuracy => 80},
        {:date => '03',
         :wpm => 15,
         :errors => 0,
         :accuracy => 100},
        {:date => '04',
         :wpm => 16,
         :errors => 2,
         :accuracy => 87},
        {:date => '05'},
        {:date => '06',
         :wpm => 18,
         :errors => 1,
         :accuracy => 94},
        {:date => '07'},
        {:date => '08'},
        {:date => '09',
         :wpm => 21,
         :errors => 1,
         :accuracy => 95},
        {:date => '10'},
        {:date => '11'},
        {:date => '12'},
        {:date => '13'},
        {:date => '14'},
        {:date => '15'},
        {:date => '16'},
        {:date => '17'},
        {:date => '18'},
        {:date => '19',
         :wpm => 28,
         :errors => 5,
         :accuracy => 82},
        {:date => '20'},
        {:date => '21'},
        {:date => '22'},
        {:date => '23'},
        {:date => '24'},
        {:date => '25'},
        {:date => '26'},
        {:date => '27',
         :wpm => 37,
         :errors => 3,
         :accuracy => 92},
    ]

    [:wpm, :errors, :accuracy].each do |field|
      g.dataxy(field, data.each_with_index.map { |d, i| [i + 1, d[field]] if d[field] }.compact)
    end

    labels = Hash.new
    data.each_with_index do |d, i|
      labels[i + 1] = d[:date] if d.size > 1
    end
    g.labels = labels

    g.write('test/output/line_many_numbers.png')
  end

  def test_no_hide_line_no_labels
    g = Gruff::Line.new
    g.title = 'No Hide Line No Labels'
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.hide_line_markers = false
    g.write('test/output/line_no_hide.png')
  end

  def test_xy_data
    g = Gruff::Line.new
    g.title = 'X/Y Dataset'
    g.dataxy('Apples', [1, 3, 4, 5, 6, 10], [1, 2, 3, 4, 4, 3])
    g.dataxy('Bapples', [1, 3, 4, 5, 7, 9], [1, 1, 2, 2, 3, 3])
    g.data('Capples', [1, 1, 2, 2, 3, 3])
    g.labels = {0 => '2003', 2 => '2004', 4 => '2005', 6 => '2006', 8 => '2007', 10 => '2008'}
    g.write('test/output/line_xy.png')
  end

  def test_xy_data_pairs
    g = Gruff::Line.new
    g.title = 'X/Y Dataset Pairs'
    g.dataxy('Apples', [[1, 1], [3, 2], [4, 3], [5, 4], [6, 4], [10, 3]])
    g.dataxy('Bapples', [[1, 1], [3, 1], [4, 2], [5, 2], [7, 3], [9, 3]])
    g.data('Capples', [1, 1, 2, 2, 3, 3])
    g.dataxy('Dapples', [[1, 1], [2, 2], [5, 6], [13, 13], [15, nil], [2, 17], [3, nil], [3, 17], [13, nil], [3, 18], [5, nil], [2, 18]])
    g.dataxy('Eapples', [[1, 1], [2, 3], [5, 8], [13, 21], [13, 8], [5, 3], [2, 1], [1, 1]])
    g.labels = {0 => '2003', 2 => '2004', 4 => '2005', 6 => '2006', 8 => '2007', 10 => '2008', 12 => '2009'}
    g.write('test/output/line_xy_pairs.png')
  end

  def test_jruby_error
    g = Gruff::Line.new
    g.theme = {
        :colors => %w(#7F0099 #2F85ED #2FED09 #EC962F),
        :marker_color => '#aaa',
        :background_colors => %w(#E8E8E8 #B9FD6C)
    }
    g.hide_title = true

    g.legend_font_size = 12
    g.marker_font_size = 16
    g.hide_dots = false

    g.write('test/output/line_jruby_error.png')
  end

  def test_marker_label_accuracy
    g = Gruff::Line.new
    g.title = 'Marker label accuracy'
    g.labels = {
        0 => '1',
        1 => '2',
        2 => '3',
        3 => '4',
        4 => '5'
    }
    g.data('first', [0.5, 0.51, 0.52, 0.53, 0.54])
    g.data('second', [0.6, 0.61, 0.62, 0.63, 0.64])
    g.data('third', [0.7, 0.71, 0.72, 0.73, 0.74])

    g.write('test/output/line_marker_label_accuracy.png')
  end

  def test_y_axis_increment
    g = Gruff::Line.new
    g.title = 'y axis increment'

    g.data('data', [1, 2, 3])

    g.y_axis_increment = 1

    g.write('test/output/line_y_axis_increment.png')
  end

  def test_multiple_reference_lines

    g = Gruff::Line.new
    g.title = 'Line Chart with Multiple Reference Lines'

    g.data('Apples', [3, 2, 3, 4, 4, 3])
    g.data('Oranges', [4, 8, 7, 9, 8, 9])
    g.data('Watermelon', [2, 3, 4, 5, 6, 8])
    g.data('Peaches', [9, 9, 10, 8, 7, 9])

    g.labels = {0 => '2003', 2 => '2004', 4 => '2005'}

    g.reference_line_default_width = 1

    g.reference_lines[:baseline]  = { :value => 5 }
    g.reference_lines[:lots]      = { :value => 9 }
    g.reference_lines[:little]    = { :value => 3 }
    g.reference_lines[:horiz_one] = { :index => 1, :color => 'green' }
    g.reference_lines[:horiz_two] = { :index => 3, :color => 'green' }

    g.write('line_reference_lines.png')
  end

  def test_baseline
    g = Gruff::Line.new
    g.title = 'Line Chart with Baseline = 5'

    g.data('Apples', [3, 2, 3, 4, 4, 3])
    g.data('Oranges', [4, 8, 7, 9, 8, 9])
    g.data('Watermelon', [2, 3, 4, 5, 6, 8])
    g.data('Peaches', [9, 9, 10, 8, 7, 9])

    g.labels = {0 => '2003', 2 => '2004', 4 => '2005'}
    g.baseline_value = 5

    g.write('line_baseline.png')
  end

  def test_webp
    g = setup_basic_graph('800x400')
    g.title = 'Line Chart WEBP'
    g.write('line_webp.webp')
  rescue Magick::ImageMagickError
    assert_match /no encode delegate for this image format .*\.webp/, $!.message
  end

  private

  # TODO Reset data after each theme
  def line_graph_with_themes(size=nil)
    g = Gruff::Line.new(size)
    g.title = "Multi-Line Graph Test #{size}"
    g.labels = @labels
    g.baseline_value = 90
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    # Default theme
    g.write("test/output/line_theme_keynote_#{size}.png")

    g = Gruff::Line.new(size)
    g.title = "Multi-Line Graph Test #{size}"
    g.labels = @labels
    g.baseline_value = 90
    g.theme = Gruff::Themes::THIRTYSEVEN_SIGNALS
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write("test/output/line_theme_37signals_#{size}.png")

    g = Gruff::Line.new(size)
    g.title = "Multi-Line Graph Test #{size}"
    g.labels = @labels
    g.baseline_value = 90
    g.theme = Gruff::Themes::RAILS_KEYNOTE
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write("test/output/line_theme_rails_keynote_#{size}.png")

    g = Gruff::Line.new(size)
    g.title = "Multi-Line Graph Test #{size}"
    g.labels = @labels
    g.baseline_value = 90
    g.theme = Gruff::Themes::ODEO
    @datasets.each do |data|
      g.data(data[0], data[1])
    end
    g.write("test/output/line_theme_odeo_#{size}.png")
  end

  def setup_pos_neg(size=800)
    g = Gruff::Line.new(size)
    g.title = 'Pos/Neg Line Graph Test'
    g.labels = {
        0 => '5/6',
        1 => '5/15',
        2 => '5/24',
        3 => '5/30',
    }
    g.data(:apples, [-1, 0, 4, -4])
    g.data(:peaches, [10, 8, 6, 3])
    g
  end


  def setup_all_neg(size=800)
    g = Gruff::Line.new(size)
    g.title = 'All Neg Line Graph Test'
    g.labels = {
        0 => '5/6',
        1 => '5/15',
        2 => '5/24',
        3 => '5/30',
    }
    g.data(:apples, [-1, -5, -20, -4])
    g.data(:peaches, [-10, -8, -6, -3])
    g
  end

end
