import CLASS from './class'
import { ChartInternal } from './core'

ChartInternal.prototype.generateTargetClass = function(targetId) {
  return targetId || targetId === 0 ? ('-' + targetId).replace(/\s/g, '-') : ''
}
ChartInternal.prototype.generateClass = function(prefix, targetId) {
  return ' ' + prefix + ' ' + prefix + this.generateTargetClass(targetId)
}
ChartInternal.prototype.classText = function(d) {
  return this.generateClass(CLASS.text, d.index)
}
ChartInternal.prototype.classTexts = function(d) {
  return this.generateClass(CLASS.texts, d.id)
}
ChartInternal.prototype.classShape = function(d) {
  return this.generateClass(CLASS.shape, d.index)
}
ChartInternal.prototype.classShapes = function(d) {
  return this.generateClass(CLASS.shapes, d.id)
}
ChartInternal.prototype.classLine = function(d) {
  return this.classShape(d) + this.generateClass(CLASS.line, d.id)
}
ChartInternal.prototype.classLines = function(d) {
  return this.classShapes(d) + this.generateClass(CLASS.lines, d.id)
}
ChartInternal.prototype.classCircle = function(d) {
  return this.classShape(d) + this.generateClass(CLASS.circle, d.index)
}
ChartInternal.prototype.classCircles = function(d) {
  return this.classShapes(d) + this.generateClass(CLASS.circles, d.id)
}
ChartInternal.prototype.classBar = function(d) {
  return this.classShape(d) + this.generateClass(CLASS.bar, d.index)
}
ChartInternal.prototype.classBars = function(d) {
  return this.classShapes(d) + this.generateClass(CLASS.bars, d.id)
}
ChartInternal.prototype.classArc = function(d) {
  return this.classShape(d.data) + this.generateClass(CLASS.arc, d.data.id)
}
ChartInternal.prototype.classArcs = function(d) {
  return this.classShapes(d.data) + this.generateClass(CLASS.arcs, d.data.id)
}
ChartInternal.prototype.classArea = function(d) {
  return this.classShape(d) + this.generateClass(CLASS.area, d.id)
}
ChartInternal.prototype.classAreas = function(d) {
  return this.classShapes(d) + this.generateClass(CLASS.areas, d.id)
}
ChartInternal.prototype.classRegion = function(d, i) {
  return (
    this.generateClass(CLASS.region, i) + ' ' + ('class' in d ? d['class'] : '')
  )
}
ChartInternal.prototype.classEvent = function(d) {
  return this.generateClass(CLASS.eventRect, d.index)
}
ChartInternal.prototype.classTarget = function(id) {
  var $$ = this
  var additionalClassSuffix = $$.config.data_classes[id],
    additionalClass = ''
  if (additionalClassSuffix) {
    additionalClass = ' ' + CLASS.target + '-' + additionalClassSuffix
  }
  return $$.generateClass(CLASS.target, id) + additionalClass
}
ChartInternal.prototype.classFocus = function(d) {
  return this.classFocused(d) + this.classDefocused(d)
}
ChartInternal.prototype.classFocused = function(d) {
  return ' ' + (this.focusedTargetIds.indexOf(d.id) >= 0 ? CLASS.focused : '')
}
ChartInternal.prototype.classDefocused = function(d) {
  return (
    ' ' + (this.defocusedTargetIds.indexOf(d.id) >= 0 ? CLASS.defocused : '')
  )
}
ChartInternal.prototype.classChartText = function(d) {
  return CLASS.chartText + this.classTarget(d.id)
}
ChartInternal.prototype.classChartLine = function(d) {
  return CLASS.chartLine + this.classTarget(d.id)
}
ChartInternal.prototype.classChartBar = function(d) {
  return CLASS.chartBar + this.classTarget(d.id)
}
ChartInternal.prototype.classChartArc = function(d) {
  return CLASS.chartArc + this.classTarget(d.data.id)
}
ChartInternal.prototype.getTargetSelectorSuffix = function(targetId) {
  const targetClass = this.generateTargetClass(targetId)
  if (window.CSS && window.CSS.escape) {
    return window.CSS.escape(targetClass)
  }

  // fallback on imperfect method for old browsers (does not handles unicode)
  return targetClass.replace(/([?!@#$%^&*()=+,.<>'":;\[\]\/|~`{}\\])/g, '\\$1')
}
ChartInternal.prototype.selectorTarget = function(id, prefix) {
  return (prefix || '') + '.' + CLASS.target + this.getTargetSelectorSuffix(id)
}
ChartInternal.prototype.selectorTargets = function(ids, prefix) {
  var $$ = this
  ids = ids || []
  return ids.length
    ? ids.map(function(id) {
        return $$.selectorTarget(id, prefix)
      })
    : null
}
ChartInternal.prototype.selectorLegend = function(id) {
  return '.' + CLASS.legendItem + this.getTargetSelectorSuffix(id)
}
ChartInternal.prototype.selectorLegends = function(ids) {
  var $$ = this
  return ids && ids.length
    ? ids.map(function(id) {
        return $$.selectorLegend(id)
      })
    : null
}