export default class MenuUtils {
  /**
   * @description 获取下级模块
   * @return {String}  selfId  当前组件id
   */
  static getSubModules (components, selfId) {
    let modules = components.map(item => {
      if (item.uuid === selfId) {
        return {
          children: null
        }
      } else if (item.format) { // 数据格式，存在数据源
        return {
          value: item.uuid,
          label: item.name
        }
      } else if (item.type === 'tabs') {
        let _item = {
          value: item.uuid,
          label: item.name,
          children: item.subtabs.map(f_tab => {
            let subItem = {
              value: f_tab.uuid,
              label: f_tab.label,
              children: this.getSubModules(f_tab.components, selfId)
            }

            if (!subItem.children || subItem.children.length === 0) {
              return {children: null}
            }
            return subItem
          })
        }

        _item.children = _item.children.filter(t => t.children !== null)

        if (_item.children.length === 0) {
          return {children: null}
        }

        return _item
      } else if (item.type === 'group') {
        let _item = {
          value: item.uuid,
          label: item.name,
          children: item.components.map(f_tab => {
            if (f_tab.uuid === selfId) {
              return {
                children: null
              }
            } else if (f_tab.format) {
              return {
                value: f_tab.uuid,
                label: f_tab.name
              }
            }
            return {
              children: null
            }
          })
        }

        _item.children = _item.children.filter(t => t.children !== null)

        if (_item.children.length === 0) {
          return {children: null}
        }

        return _item
      } else {
        return {
          children: null
        }
      }
    })

    modules = modules.filter(mod => mod.children !== null)

    if (modules.length === 0) {
      return null
    }
    return modules
  }

  /**
   * @description 获取上级模块
   * @return {String}  selfId  当前组件id
   */
  static getSupModules (components, selfId) {
    let modules = components.map(item => {
      if (item.uuid === selfId) {
        return {
          children: null
        }
      } else if (item.switchable) { // 数据可切换
        return {
          value: item.uuid,
          label: item.name
        }
      } else if (item.type === 'tabs') {
        let _item = {
          value: item.uuid,
          label: item.name,
          children: item.subtabs.map(f_tab => {
            let subItem = {
              value: f_tab.uuid,
              label: f_tab.label,
              children: this.getSupModules(f_tab.components, selfId)
            }

            if (!subItem.children || subItem.children.length === 0) {
              return {children: null}
            }
            return subItem
          })
        }

        _item.children = _item.children.filter(t => t.children !== null)

        if (_item.children.length === 0) {
          return {children: null}
        }

        return _item
      } else if (item.type === 'group') {
        let _item = {
          value: item.uuid,
          label: item.name,
          children: item.components.map(f_tab => {
            if (f_tab.uuid === selfId) {
              return {
                children: null
              }
            } else if (f_tab.switchable) {
              return {
                value: f_tab.uuid,
                label: f_tab.name
              }
            }
            return {
              children: null
            }
          })
        }

        _item.children = _item.children.filter(t => t.children !== null)

        if (_item.children.length === 0) {
          return {children: null}
        }

        return _item
      } else {
        return {
          children: null
        }
      }
    })

    modules = modules.filter(mod => mod.children !== null)

    if (modules.length === 0) {
      return null
    }
    return modules
  }

  /**
   * @description 获取删除按钮Id
   * @return {String}  name
   */
  static getDelButtonIds (card) {
    let uuids = []
    const getUuids = (item) => {
      if (item.type === 'tabs') {
        item.subtabs.forEach(tab => {
          tab.components.forEach(c => {
            getUuids(c)
          })
        })
      } else if (item.type === 'group') {
        item.components.forEach(c => {
          getUuids(c)
        })
      } else {
        if (item.action && item.action.length) {
          item.action.forEach(act => {
            if (!act.origin) {
              uuids.push(act.uuid)
            }
          })
        }
        if (item.type === 'card') {
          item.subcards.forEach(_card => {
            _card.elements && _card.elements.forEach(cell => {
              if (cell.eleType === 'button') {
                uuids.push(cell.uuid)
              }
            })
            _card.backElements && _card.backElements.forEach(cell => {
              if (cell.eleType === 'button') {
                uuids.push(cell.uuid)
              }
            })
          })
        } else if (item.type === 'table' && item.subtype === 'tablecard') {
          item.subcards.forEach(_card => {
            _card.elements && _card.elements.forEach(cell => {
              if (cell.eleType === 'button') {
                uuids.push(cell.uuid)
              }
            })
          })
        } else if (item.type === 'table' && item.subtype === 'normaltable') {
          item.cols && item.cols.forEach(col => {
            if (col.type !== 'action') return
            col.elements && col.elements.forEach(cell => {
              uuids.push(cell.uuid)
            })
          })
        }
      }
    }

    getUuids(card)

    return uuids
  }
}