describe('c3 chart arc', function() {
  'use strict'

  var chart, args

  beforeEach(function(done) {
    chart = window.initChart(chart, args, done)
  })

  describe('unloads correctly', function() {
    beforeAll(function() {
      args = {
        data: {
          columns: [
            ['data1', 30],
            ['data2', 150],
            ['data3', 120]
          ],
          type: 'pie'
        },
        transition: {
          duration: 500
        }
      }
    })

    it('unloads without error', function(done) {
      chart.load({
        columns: [['data2', 30, 20, 50, 40, 60, 50]]
      })

      setTimeout(function() {
        chart.destroy()
      }, 200)

      setTimeout(function() {
        expect(chart.internal.config).toBeNull()
        done()
      }, 501)
    })
  })

  describe('show pie chart', function() {
    beforeAll(function() {
      args = {
        data: {
          columns: [
            ['data1', 30],
            ['data2', 150],
            ['data3', 120]
          ],
          type: 'pie'
        }
      }
    })

    it('should have correct classes', function() {
      var chartArc = d3.select('.c3-chart-arcs'),
        arcs = {
          data1: chartArc
            .select('.c3-chart-arc.c3-target.c3-target-data1')
            .select('g.c3-shapes.c3-shapes-data1.c3-arcs.c3-arcs-data1')
            .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data1'),
          data2: chartArc
            .select('.c3-chart-arc.c3-target.c3-target-data2')
            .select('g.c3-shapes.c3-shapes-data2.c3-arcs.c3-arcs-data2')
            .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data2'),
          data3: chartArc
            .select('.c3-chart-arc.c3-target.c3-target-data3')
            .select('g.c3-shapes.c3-shapes-data3.c3-arcs.c3-arcs-data3')
            .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data3')
        }
      expect(arcs.data1.size()).toBe(1)
      expect(arcs.data2.size()).toBe(1)
      expect(arcs.data3.size()).toBe(1)
    })

    it('should have correct d', function() {
      expect(d3.select('.c3-arc-data1').attr('d')).toMatch(
        /M-124\..+,-171\..+A211\..+,211\..+,0,0,1,-3\..+,-211\..+L0,0Z/
      )
      expect(d3.select('.c3-arc-data2').attr('d')).toMatch(
        /M1\..+,-211\..+211\..+,211\..+,0,0,1,1\..+,211\..+L0,0Z/
      )
      expect(d3.select('.c3-arc-data3').attr('d')).toMatch(
        /M1\..+,211\..+211\..+,211\..+,0,0,1,-124\..+,-171\..+L0,0Z/
      )
    })

    describe('with data id that can be converted to a color', function() {
      beforeAll(function() {
        args.data.columns = [
          ['black', 30],
          ['data2', 150],
          ['data3', 120]
        ]
      })

      it('should have correct d even if data id can be converted to a color', function(done) {
        setTimeout(function() {
          expect(d3.select('.c3-arc-black').attr('d')).toMatch(
            /M-124\..+,-171\..+A211\..+,211\..+,0,0,1,-3\..+,-211\..+L0,0Z/
          )
          done()
        }, 500)
      })

      describe('with empty pie chart', function() {
        beforeAll(function() {
          args = {
            data: {
              columns: [
                ['data1', null],
                ['data2', null],
                ['data3', null]
              ],
              type: 'pie'
            }
          }
        })

        it('should have correct d attribute', function() {
          var chartArc = d3.select('.c3-chart-arcs'),
            arcs = {
              data1: chartArc
                .select('.c3-chart-arc.c3-target.c3-target-data1')
                .select('g.c3-shapes.c3-shapes-data1.c3-arcs.c3-arcs-data1')
                .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data1'),
              data2: chartArc
                .select('.c3-chart-arc.c3-target.c3-target-data2')
                .select('g.c3-shapes.c3-shapes-data2.c3-arcs.c3-arcs-data2')
                .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data2'),
              data3: chartArc
                .select('.c3-chart-arc.c3-target.c3-target-data3')
                .select('g.c3-shapes.c3-shapes-data3.c3-arcs.c3-arcs-data3')
                .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data3')
            }
          expect(arcs.data1.attr('d').indexOf('NaN')).toBe(-1)
          expect(arcs.data2.attr('d').indexOf('NaN')).toBe(-1)
          expect(arcs.data3.attr('d').indexOf('NaN')).toBe(-1)
        })
      })
    })
  })

  describe('sort pie chart', function() {
    var createPie = function(order) {
      return {
        data: {
          order: order,
          columns: [
            ['data1', 30],
            ['data2', 150],
            ['data3', 120]
          ],
          type: 'pie'
        }
      }
    }

    var collectArcs = function() {
      return d3
        .selectAll('.c3-arc')
        .data()
        .sort(function(a, b) {
          return a.startAngle - b.startAngle
        })
        .map(function(item) {
          return item.data.id
        })
    }

    it('should update data_order to desc', function() {
      args = createPie('desc')
      expect(true).toBeTruthy()
    })

    it('it should have descending ordering', function() {
      expect(collectArcs()).toEqual(['data2', 'data3', 'data1'])
    })

    it('should update data_order to asc', function() {
      args = createPie('asc')
      expect(true).toBeTruthy()
    })

    it('it should have ascending ordering', function() {
      expect(collectArcs()).toEqual(['data1', 'data3', 'data2'])
    })

    it('should update data_order to NULL', function() {
      args = createPie(null)
      expect(true).toBeTruthy()
    })

    it('it should have no ordering', function() {
      expect(collectArcs()).toEqual(['data1', 'data2', 'data3'])
    })

    it('should update data_order to Array', function() {
      args = createPie(['data3', 'data2', 'data1'])
      expect(true).toBeTruthy()
    })

    it('it should have array specified ordering', function() {
      expect(collectArcs()).toEqual(['data3', 'data2', 'data1'])
    })

    it('should update data_order to Function', function() {
      var names = ['data2', 'data1', 'data3']
      args = createPie(function(a, b) {
        return names.indexOf(a.id) - names.indexOf(b.id)
      })
      expect(true).toBeTruthy()
    })

    it('it should have array specified ordering', function() {
      expect(collectArcs()).toEqual(['data2', 'data1', 'data3'])
    })
  })

  describe('config donut chart', function() {
    beforeAll(function() {
      args = {
        data: {
          columns: [
            ['data1', 30],
            ['data2', 150],
            ['data3', 120]
          ],
          type: 'donut'
        },
        donut: {
          padAngle: 0.05
        }
      }
    })

    it('can configure padAngle', function() {
      expect(chart.internal.pie.padAngle()()).toBe(0.05)
    })
  })

  describe('config pie chart', function() {
    beforeAll(function() {
      args = {
        data: {
          columns: [
            ['data1', 30],
            ['data2', 150],
            ['data3', 120]
          ],
          type: 'pie'
        },
        pie: {
          padAngle: 0.05
        }
      }
    })

    it('can configure padAngle', function() {
      expect(chart.internal.pie.padAngle()()).toBe(0.05)
    })
  })

  describe('show gauge', function() {
    describe('with a 180 degree gauge', function() {
      beforeAll(function() {
        args = {
          gauge: {
            width: 10,
            max: 10,
            expand: true
          },
          data: {
            columns: [['data', 8]],
            type: 'gauge'
          }
        }
      })

      it('should have correct d for Pi radian gauge', function() {
        var chartArc = d3.select('.c3-chart-arcs'),
          data = chartArc
            .select('.c3-chart-arc.c3-target.c3-target-data')
            .select('g.c3-shapes.c3-shapes-data.c3-arcs.c3-arcs-data')
            .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data')

        expect(data.attr('d')).toMatch(
          /-258.4,-3\..+A258.4,258.4,0,0,1,209\..+,-151\..+L200\..+,-146\..+A248.39999999999998,248.39999999999998,0,0,0,-248.39999999999998,-3\..+Z/
        )
      })
    })

    describe('with a 2 Pi radian gauge that starts at Pi/2', function() {
      beforeAll(function() {
        args = {
          gauge: {
            width: 10,
            max: 10,
            expand: true,
            fullCircle: true,
            startingAngle: Math.PI / 2
          },
          data: {
            columns: [['data', 8]],
            type: 'gauge'
          }
        }
      })

      it('should have correct d for 2 Pi radian gauge starting at Pi/2', function() {
        var chartArc = d3.select('.c3-chart-arcs'),
          data = chartArc
            .select('.c3-chart-arc.c3-target.c3-target-data')
            .select('g.c3-shapes.c3-shapes-data.c3-arcs.c3-arcs-data')
            .select('path.c3-shape.c3-shape.c3-arc.c3-arc-data')

        expect(data.attr('d')).toMatch(/^M180/)
      })

      describe('with labels use custom text', function() {
        beforeAll(function() {
          args = {
            gauge: {
              width: 10,
              max: 100,
              expand: true,
              label: {
                extents: function(value, isMax) {
                  if (isMax) {
                    return 'Max: ' + value + '%'
                  }

                  return 'Min: ' + value + '%'
                }
              }
            },
            data: {
              columns: [['data', 8]],
              type: 'gauge'
            }
          }
        })
        it('should show custom min/max guage labels', function() {
          var chartArc = d3.select('.c3-chart-arcs'),
            min = chartArc.select('.c3-chart-arcs-gauge-min'),
            max = chartArc.select('.c3-chart-arcs-gauge-max')

          expect(min.text()).toMatch('Min: 0%')
          expect(max.text()).toMatch('Max: 100%')
        })
      })
    })

    describe('with more than one data_column ', function() {
      beforeAll(function() {
        args = {
          data: {
            columns: [
              ['padded1', 100],
              ['padded2', 90],
              ['padded3', 50],
              ['padded4', 20]
            ],
            type: 'gauge'
          },
          color: {
            pattern: ['#FF0000', '#F97600', '#F6C600', '#60B044'],
            threshold: {
              values: [30, 80, 95]
            }
          }
        }
      })
      var arcColor = [
        'rgb(96, 176, 68)',
        'rgb(246, 198, 0)',
        'rgb(249, 118, 0)',
        'rgb(255, 0, 0)'
      ]

      describe('should contain arcs ', function() {
        it('each data_column should have one arc', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc')
            .each(function(d, i) {
              expect(
                d3.select(this).classed('c3-arc-' + args.data.columns[i][0])
              ).toBeTruthy()
            })
        })

        it('each arc should have the color from color_pattern if color_treshold is given ', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc')
            .each(function(d, i) {
              expect(d3.select(this).style('fill')).toBe(arcColor[i])
            })
        })
      })

      describe('should contain backgrounds ', function() {
        it('each data_column should have one background', function() {
          chart.internal.main
            .selectAll('.c3-chart-arcs path.c3-chart-arcs-background')
            .each(function(d, i) {
              expect(
                d3.select(this).classed('c3-chart-arcs-background-' + i)
              ).toBeTruthy()
            })
        })

        it('each background should have tbe same color', function() {
          chart.internal.main
            .selectAll('.c3-chart-arcs path.c3-chart-arcs-background')
            .each(function() {
              expect(d3.select(this).style('fill')).toBe('rgb(224, 224, 224)')
            })
        })
      })

      describe('should contain labels', function() {
        it('each data_column should have a label', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-gauge-value')
            .each(function(d, i) {
              expect(d3.select(this).text()).toBe(
                chart.internal.defaultArcValueFormat(
                  null,
                  args.data.columns[i][1] / 100
                )
              )
            })
        })

        it('each label should have the same color', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-gauge-value')
            .each(function() {
              expect(d3.select(this).style('fill')).toBe('rgb(0, 0, 0)')
            })
        })

        it('if only one data_column is visible the label should have "" for transform', function(done) {
          var textBeforeHide = chart.internal.main.select(
            '.c3-chart-arc.c3-target.c3-target-padded4 text'
          )
          expect(textBeforeHide.attr('transform')).not.toBe('')
          chart.hide(['padded1', 'padded2', 'padded3'])
          setTimeout(function() {
            var textAfterHide = chart.internal.main.select(
              '.c3-chart-arc.c3-target.c3-target-padded4 text'
            )
            expect(textAfterHide.attr('transform')).toBe('')
            done()
          }, 1000)
        })
      })

      describe('should contain labellines', function() {
        it('each data_column should have a labelline', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc-label-line')
            .each(function(d, i) {
              expect(
                d3.select(this).classed('c3-target-' + args.data.columns[i][0])
              ).toBeTruthy()
            })
        })

        it('each labelline should have the color from color_pattern if color_treshold is given', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc-label-line')
            .each(function(d, i) {
              expect(d3.select(this).style('fill')).toBe(arcColor[i])
            })
        })
      })
    })

    describe('with more than one data value ', function() {
      beforeAll(function() {
        args = {
          data: {
            columns: [
              ['padded1', 40, 60],
              ['padded2', 100, -10],
              ['padded3', 0, 50],
              ['padded4', 20, 0]
            ],
            type: 'gauge'
          },
          color: {
            pattern: ['#FF0000', '#F97600', '#F6C600', '#60B044'],
            threshold: {
              values: [30, 80, 95]
            }
          }
        }
      })
      var arcColor = [
        'rgb(96, 176, 68)',
        'rgb(246, 198, 0)',
        'rgb(249, 118, 0)',
        'rgb(255, 0, 0)'
      ]

      describe('should contain arcs ', function() {
        it('each data_column should have one arc', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc')
            .each(function(d, i) {
              expect(
                d3.select(this).classed('c3-arc-' + args.data.columns[i][0])
              ).toBeTruthy()
            })
        })

        it('each arc should have the color from color_pattern if color_treshold is given ', function() {
          chart.internal.main
            .selectAll('.c3-chart-arc .c3-arc')
            .each(function(d, i) {
              expect(d3.select(this).style('fill')).toBe(arcColor[i])
            })
        })
      })
    })
  })
})
