/*
 * 图片转换对话框脚本
 **/

var tableData = [],
    // 编辑器页面table
  editorTable = null,
  chartsConfig = window.typeConfig,
  resizeTimer = null,
    // 初始默认图表类型
  currentChartType = 0

window.onload = function () {
  editorTable = domUtils.findParentByTagName(editor.selection.getRange().startContainer, 'table', true)

    // 未找到表格， 显示错误页面
  if (!editorTable) {
    document.body.innerHTML = "<div class='edui-charts-not-data'>未找到数据</div>"
    return
  }

    // 初始化图表类型选择
  initChartsTypeView()
  renderTable(editorTable)
  initEvent()
  initUserConfig(editorTable.getAttribute('data-chart'))
  $('#scrollBed .view-box:eq(' + currentChartType + ')').trigger('click')
  updateViewType(currentChartType)

  dialog.addListener('resize', function () {
    if (resizeTimer != null) {
      window.clearTimeout(resizeTimer)
    }

    resizeTimer = window.setTimeout(function () {
      resizeTimer = null

      renderCharts()
    }, 500)
  })
}

function initChartsTypeView () {
  var contents = []

  for (var i = 0, len = chartsConfig.length; i < len; i++) {
    contents.push('<div class="view-box" data-chart-type="' + i + '"><img width="300" src="images/charts' + i + '.png"></div>')
  }

  $('#scrollBed').html(contents.join(''))
}

// 渲染table， 以便用户修改数据
function renderTable (table) {
  var tableHtml = []

    // 构造数据
  for (var i = 0, row; row = table.rows[ i ]; i++) {
    tableData[ i ] = []
    tableHtml[ i ] = []

    for (var j = 0, cell; cell = row.cells[ j ]; j++) {
      var value = getCellValue(cell)

      if (i > 0 && j > 0) {
        value = +value
      }

      if (i === 0 || j === 0) {
        tableHtml[ i ].push('<th>' + value + '</th>')
      } else {
        tableHtml[ i ].push('<td><input type="text" class="data-item" value="' + value + '"></td>')
      }

      tableData[ i ][ j ] = value
    }

    tableHtml[ i ] = tableHtml[ i ].join('')
  }

    // draw 表格
  $('#tableContainer').html('<table id="showTable" border="1"><tbody><tr>' + tableHtml.join('</tr><tr>') + '</tr></tbody></table>')
}

/*
 * 根据表格已有的图表属性初始化当前图表属性
 */
function initUserConfig (config) {
  var parsedConfig = {}

  if (!config) {
    return
  }

  config = config.split(';')

  $.each(config, function (index, item) {
    item = item.split(':')
    parsedConfig[ item[ 0 ] ] = item[ 1 ]
  })

  setUserConfig(parsedConfig)
}

function initEvent () {
  var cacheValue = null,
        // 图表类型数
    typeViewCount = chartsConfig.length - 1,
    $chartsTypeViewBox = $('#scrollBed .view-box')

  $('.charts-format').delegate('.format-ctrl', 'change', function () {
    renderCharts()
  })

  $('.table-view').delegate('.data-item', 'focus', function () {
    cacheValue = this.value
  }).delegate('.data-item', 'blur', function () {
    if (this.value !== cacheValue) {
      renderCharts()
    }

    cacheValue = null
  })

  $('#buttonContainer').delegate('a', 'click', function (e) {
    e.preventDefault()

    if (this.getAttribute('data-title') === 'prev') {
      if (currentChartType > 0) {
        currentChartType--
        updateViewType(currentChartType)
      }
    } else {
      if (currentChartType < typeViewCount) {
        currentChartType++
        updateViewType(currentChartType)
      }
    }
  })

    // 图表类型变化
  $('#scrollBed').delegate('.view-box', 'click', function (e) {
    var index = $(this).attr('data-chart-type')
    $chartsTypeViewBox.removeClass('selected')
    $($chartsTypeViewBox[ index ]).addClass('selected')

    currentChartType = index | 0

        // 饼图， 禁用部分配置
    if (currentChartType === chartsConfig.length - 1) {
      disableNotPieConfig()

        // 启用完整配置
    } else {
      enableNotPieConfig()
    }

    renderCharts()
  })
}

function renderCharts () {
  var data = collectData()

  $('#chartsContainer').highcharts($.extend({}, chartsConfig[ currentChartType ], {

    credits: {
      enabled: false
    },
    exporting: {
      enabled: false
    },
    title: {
      text: data.title,
      x: -20 // center
    },
    subtitle: {
      text: data.subTitle,
      x: -20
    },
    xAxis: {
      title: {
        text: data.xTitle
      },
      categories: data.categories
    },
    yAxis: {
      title: {
        text: data.yTitle
      },
      plotLines: [{
        value: 0,
        width: 1,
        color: '#808080'
      }]
    },
    tooltip: {
      enabled: true,
      valueSuffix: data.suffix
    },
    legend: {
      layout: 'vertical',
      align: 'right',
      verticalAlign: 'middle',
      borderWidth: 1
    },
    series: data.series

  }))
}

function updateViewType (index) {
  $('#scrollBed').css('marginLeft', -index * 324 + 'px')
}

function collectData () {
  var form = document.forms[ 'data-form' ],
    data = null

  if (currentChartType !== chartsConfig.length - 1) {
    data = getSeriesAndCategories()
    $.extend(data, getUserConfig())

    // 饼图数据格式
  } else {
    data = getSeriesForPieChart()
    data.title = form[ 'title' ].value
    data.suffix = form[ 'unit' ].value
  }

  return data
}

/**
 * 获取用户配置信息
 */
function getUserConfig () {
  var form = document.forms[ 'data-form' ],
    info = {
      title: form[ 'title' ].value,
      subTitle: form[ 'sub-title' ].value,
      xTitle: form[ 'x-title' ].value,
      yTitle: form[ 'y-title' ].value,
      suffix: form[ 'unit' ].value,
            // 数据对齐方式
      tableDataFormat: getTableDataFormat(),
            // 饼图提示文字
      tip: $('#tipInput').val()
    }

  return info
}

function setUserConfig (config) {
  var form = document.forms[ 'data-form' ]

  config.title && (form[ 'title' ].value = config.title)
  config.subTitle && (form[ 'sub-title' ].value = config.subTitle)
  config.xTitle && (form[ 'x-title' ].value = config.xTitle)
  config.yTitle && (form[ 'y-title' ].value = config.yTitle)
  config.suffix && (form[ 'unit' ].value = config.suffix)
  config.dataFormat == '-1' && (form[ 'charts-format' ][ 1 ].checked = true)
  config.tip && (form[ 'tip' ].value = config.tip)
  currentChartType = config.chartType || 0
}

function getSeriesAndCategories () {
  var form = document.forms[ 'data-form' ],
    series = [],
    categories = [],
    tmp = [],
    tableData = getTableData()

    // 反转数据
  if (getTableDataFormat() === '-1') {
    for (var i = 0, len = tableData.length; i < len; i++) {
      for (var j = 0, jlen = tableData[ i ].length; j < jlen; j++) {
        if (!tmp[ j ]) {
          tmp[ j ] = []
        }

        tmp[ j ][ i ] = tableData[ i ][ j ]
      }
    }

    tableData = tmp
  }

  categories = tableData[0].slice(1)

  for (var i = 1, data; data = tableData[ i ]; i++) {
    series.push({
      name: data[ 0 ],
      data: data.slice(1)
    })
  }

  return {
    series: series,
    categories: categories
  }
}

/*
 * 获取数据源数据对齐方式
 */
function getTableDataFormat () {
  var form = document.forms[ 'data-form' ],
    items = form['charts-format']

  return items[ 0 ].checked ? items[ 0 ].value : items[ 1 ].value
}

/*
 * 禁用非饼图类型的配置项
 */
function disableNotPieConfig () {
  updateConfigItem('disable')
}

/*
 * 启用非饼图类型的配置项
 */
function enableNotPieConfig () {
  updateConfigItem('enable')
}

function updateConfigItem (value) {
  var table = $('#showTable')[ 0 ],
    isDisable = value === 'disable'

    // table中的input处理
  for (var i = 2, row; row = table.rows[ i ]; i++) {
    for (var j = 1, cell; cell = row.cells[ j ]; j++) {
      $('input', cell).attr('disabled', isDisable)
    }
  }

    // 其他项处理
  $('input.not-pie-item').attr('disabled', isDisable)
  $('#tipInput').attr('disabled', !isDisable)
}

/*
 * 获取饼图数据
 * 饼图的数据只取第一行的
 **/
function getSeriesForPieChart () {
  var series = {
      type: 'pie',
      name: $('#tipInput').val(),
      data: []
    },
    tableData = getTableData()

  for (var j = 1, jlen = tableData[ 0 ].length; j < jlen; j++) {
    var title = tableData[ 0 ][ j ],
      val = tableData[ 1 ][ j ]

    series.data.push([ title, val ])
  }

  return {
    series: [ series ]
  }
}

function getTableData () {
  var table = document.getElementById('showTable'),
    xCount = table.rows[0].cells.length - 1,
    values = getTableInputValue()

  for (var i = 0, value; value = values[ i ]; i++) {
    tableData[ Math.floor(i / xCount) + 1 ][ i % xCount + 1 ] = values[ i ]
  }

  return tableData
}

function getTableInputValue () {
  var table = document.getElementById('showTable'),
    inputs = table.getElementsByTagName('input'),
    values = []

  for (var i = 0, input; input = inputs[ i ]; i++) {
    values.push(input.value | 0)
  }

  return values
}

function getCellValue (cell) {
  var value = utils.trim((cell.innerText || cell.textContent || ''))

  return value.replace(new RegExp(UE.dom.domUtils.fillChar, 'g'), '').replace(/^\s+|\s+$/g, '')
}

// dialog确认事件
dialog.onok = function () {
    // 收集信息
  var form = document.forms[ 'data-form' ],
    info = getUserConfig()

    // 添加图表类型
  info.chartType = currentChartType

    // 同步表格数据到编辑器
  syncTableData()

    // 执行图表命令
  editor.execCommand('charts', info)
}

/*
 * 同步图表编辑视图的表格数据到编辑器里的原始表格
 */
function syncTableData () {
  var tableData = getTableData()

  for (var i = 1, row; row = editorTable.rows[ i ]; i++) {
    for (var j = 1, cell; cell = row.cells[ j ]; j++) {
      cell.innerHTML = tableData[ i ][ j ]
    }
  }
}
