/* eslint react/no-multi-comp:0, no-console:0, no-alert: 0 */

import '../assets/index.less'
import './demo.less'

import '../../vc-dialog/assets/index.less'
import Dialog from '../../vc-dialog'
import TreeSelect, { TreeNode, SHOW_PARENT } from '../index'
import { gData } from './util'

function isLeaf (value) {
  if (!value) {
    return false
  }
  let queues = [...gData]
  while (queues.length) { // BFS
    const item = queues.shift()
    if (item.value === value) {
      if (!item.children) {
        return true
      }
      return false
    }
    if (item.children) {
      queues = queues.concat(item.children)
    }
  }
  return false
}

function findPath (value, data) {
  const sel = []
  function loop (selected, children) {
    for (let i = 0; i < children.length; i++) {
      const item = children[i]
      if (selected === item.value) {
        sel.push(item)
        return
      }
      if (item.children) {
        loop(selected, item.children, item)
        if (sel.length) {
          sel.push(item)
          return
        }
      }
    }
  }
  loop(value, data)
  return sel
}

export default {
  data () {
    return {
      tsOpen: false,
      visible: false,
      inputValue: '0-0-0-label',
      value: '0-0-0-value1',
      // value: ['0-0-0-0-value', '0-0-0-1-value', '0-0-0-2-value'],
      lv: { value: '0-0-0-value', label: 'spe label' },
      multipleValue: [],
      simpleTreeData: [
        { key: 1, pId: 0, label: 'test1', value: 'test1' },
        { key: 121, pId: 0, label: 'test1', value: 'test121' },
        { key: 11, pId: 1, label: 'test11', value: 'test11' },
        { key: 12, pId: 1, label: 'test12', value: 'test12' },
        { key: 111, pId: 11, label: 'test111', value: 'test111' },
      ],
      treeDataSimpleMode: {
        id: 'key',
        rootPId: 0,
      },
    }
  },

  mounted () {
    // console.log(this.refs.mul.getInputDOMNode());
    // this.refs.mul.getInputDOMNode().setAttribute('disabled', true);
  },
  methods: {
    onClick  () {
      this.visible = true
    },

    onClose () {
      this.visible = false
    },

    onSearch (value) {
      console.log(value, arguments)
    },

    onChange (value) {
      console.log('onChange', arguments)
      this.value = value
    },

    onChangeChildren (value) {
      console.log('onChangeChildren', arguments)
      const pre = value ? this.value : undefined
      this.value = isLeaf(value) ? value : pre
    },

    onChangeLV (value) {
      console.log('labelInValue', arguments)
      if (!value) {
        this.lv = undefined
        return
      }
      const path = findPath(value.value, gData).map(i => i.label).reverse().join(' > ')
      this.lv = { value: value.value, label: path }
    },

    onMultipleChange  (value) {
      console.log('onMultipleChange', arguments)
      this.multipleValue = value
    },

    onSelect () {
      // use onChange instead
      console.log(...arguments)
    },

    onDropdownVisibleChange  (visible, info) {
      console.log(visible, this.value, info)
      if (Array.isArray(this.value) && this.value.length > 1 &&
        this.value.length < 3) {
        alert('please select more than two item or less than one item.')
        return false
      }
      return true
    },

    filterTreeNode (input, child) {
      return String(child.title).indexOf(input) === 0
    },
  },

  render () {
    return (
      <div style={{ margin: '20px' }}>
        <h2>tree-select in dialog</h2>
        <button class='btn btn-primary' onClick={this.onClick}>show dialog</button>
        {this.visible ? <Dialog
          visible={this.visible}
          animation='zoom'
          maskAnimation='fade'
          onClose={this.onClose}
          style={{ width: '600px', height: '400px', overflow: 'auto' }}
          id='area'
        >
          <div style={{ height: '600px', paddingTop: '100px' }}>
            <TreeSelect
              getPopupContainer={(triggerNode) => triggerNode.parentNode}
              style={{ width: '300px' }}
              transitionName='rc-tree-select-dropdown-slide-up'
              choiceTransitionName='rc-tree-select-selection__choice-zoom'
              dropdownStyle={{ maxHeight: '200px', overflow: 'auto', zIndex: 1500 }}
              placeholder={<i>请下拉选择</i>}
              searchPlaceholder='please search'
              showSearch allowClear treeLine
              value={this.value}
              treeData={gData}
              treeNodeFilterProp='label'
              filterTreeNode={false}
              onSearch={this.onSearch}
              onChange={this.onChange}
              onSelect={this.onSelect}
            />
          </div>
        </Dialog> : null}

        <h2>single select</h2>
        <TreeSelect
          style={{ width: '300px' }}
          transitionName='rc-tree-select-dropdown-slide-up'
          choiceTransitionName='rc-tree-select-selection__choice-zoom'
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          showSearch allowClear treeLine
          inputValue={this.inputValue}
          value={this.value}
          treeData={gData}
          treeNodeFilterProp='label'
          filterTreeNode={false}
          onSearch={this.onSearch}
          open={this.tsOpen}
          onChange={(value) => {
            console.log('onChange', value, arguments)
            if (value === '0-0-0-0-value') {
              this.tsOpen = true
            } else {
              this.tsOpen = false
            }
            this.value = value
          } }
          dropdownVisibleChange={(v, info) => {
            console.log('single dropdownVisibleChange', v, info)
            // document clicked
            if (info.documentClickClose && this.value === '0-0-0-0-value') {
              return false
            }
            return true
          } }
          onSelect={this.onSelect}
        />

        <h2>single select (just select children)</h2>
        <TreeSelect
          style={{ width: '300px' }}
          transitionName='rc-tree-select-dropdown-slide-up'
          choiceTransitionName='rc-tree-select-selection__choice-zoom'
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          showSearch allowClear treeLine
          value={this.value}
          treeData={gData}
          treeNodeFilterProp='label'
          filterTreeNode={false}
          onChange={this.onChangeChildren}
        />

        <h2>multiple select</h2>
        <TreeSelect ref='mul'
          style={{ width: '300px' }}
          transitionName='rc-tree-select-dropdown-slide-up'
          choiceTransitionName='rc-tree-select-selection__choice-zoom'
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          multiple
          value={this.multipleValue}
          treeData={gData}
          treeNodeFilterProp='title'
          onChange={this.onMultipleChange}
          onSelect={this.onSelect}
          allowClear
        />

        <h2>check select</h2>
        <TreeSelect
          class='check-select'
          transitionName='rc-tree-select-dropdown-slide-up'
          choiceTransitionName='rc-tree-select-selection__choice-zoom'
          dropdownStyle={{ height: '200px', overflow: 'auto' }}
          dropdownPopupAlign={{ overflow: { adjustY: 0, adjustX: 0 }, offset: [0, 2] }}
          onDropdownVisibleChange={this.onDropdownVisibleChange}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          treeLine maxTagTextLength={10}
          value={this.value}
          inputValue={null}
          treeData={gData}
          treeNodeFilterProp='title'
          treeCheckable showCheckedStrategy={SHOW_PARENT}
          onChange={this.onChange}
          onSelect={this.onSelect}
        />

        <h2>labelInValue & show path</h2>
        <TreeSelect
          style={{ width: '500px' }}
          transitionName='rc-tree-select-dropdown-slide-up'
          choiceTransitionName='rc-tree-select-selection__choice-zoom'
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          showSearch allowClear treeLine
          value={this.lv} labelInValue
          treeData={gData}
          treeNodeFilterProp='label'
          filterTreeNode={false}
          onChange={this.onChangeLV}
        />

        <h2>use treeDataSimpleMode</h2>
        <TreeSelect
          style={{ width: '300px' }}
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          placeholder={<i>请下拉选择</i>}
          searchPlaceholder='please search'
          treeLine maxTagTextLength={10}
          inputValue={'test111'}
          value={this.value}
          treeData={this.simpleTreeData}
          treeNodeFilterProp='title'
          treeDataSimpleMode={this.treeDataSimpleMode}
          treeCheckable showCheckedStrategy={SHOW_PARENT}
          onChange={this.onChange}
          onSelect={this.onSelect}
        />

        <h2>Testing in extreme conditions (Boundary conditions test) </h2>
        <TreeSelect
          style={{ width: '200px' }}
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          defaultValue={'leaf1'} multiple treeCheckable showCheckedStrategy={SHOW_PARENT}
          treeDefaultExpandAll
          treeData={[
            { key: '', value: '', label: 'empty value', children: [] },
            {
              key: '0', value: '0', label: '0 label', children: [
                { key: '00', value: '00', label: '00 label', children: [] },
                { key: '01', value: '01', label: '01 label', children: [] },
              ],
            },
          ]}
          onChange={(val) => console.log(val, arguments)}
        />

        <h2>use TreeNode Component (not recommend)</h2>
        <TreeSelect
          style={{ width: '200px' }}
          dropdownStyle={{ maxHeight: '200px', overflow: 'auto' }}
          defaultValue={'leaf1'}
          treeDefaultExpandAll
          treeNodeFilterProp='title'
          filterTreeNode={this.filterTreeNode}
          onChange={(val) => console.log(val, arguments)}
        >
          <TreeNode value='' title='parent 1' key=''>
            <TreeNode value='parent 1-0' title='parent 1-0' key='0-1-0'>
              <TreeNode value='leaf1' title='my leaf' key='random' />
              <TreeNode value='leaf2' title='your leaf' key='random1' disabled />
            </TreeNode>
            <TreeNode value='parent 1-1' title='parent 1-1' key='0-1-1'>
              <TreeNode value='sss'
                title={<span style={{ color: 'red' }}>sss</span>} key='random3'
              />
              <TreeNode value='same value1' title='same txtle' key='0-1-1-1'>
                <TreeNode value='same value10' title='same titlexd' key='0-1-1-1-0' />
              </TreeNode>
            </TreeNode>
          </TreeNode>
          <TreeNode value='same value2' title='same title' key='0-2'>
            <TreeNode value='2same value' title='2same title' key='0-2-0' />
          </TreeNode>
          <TreeNode value='same value3' title='same title' key='0-3' />
        </TreeSelect>
      </div>
    )
  },
}