import inquirer, {Questions} from 'inquirer'
import fs from 'fs-extra';
import globby from 'globby'
import fuzzy from 'fuzzy'
import {LegoOptions} from '../core/resolveOption'
import log from '../utils/log'

type DelOptions = {
  configType: 'form' | 'queryForm',
  configListToDel: string[]
}

type ConfigPathMap = {
  form: string[],
  queryForm: string[]
}

type DelQuestions = {[propName: string]: any;}[] | Questions

let legoOption: LegoOptions
const configPathMapIns: ConfigPathMap = {
  form: [],
  queryForm: []
}

const questions: DelQuestions = [
  {
    type: 'list',
    name: 'configType',
    message: '请选择删除哪种配置',
    choices: ['form', 'queryForm']
  },
  {
    type: 'checkbox-plus',
    name: 'configListToDel',
    message: '请选择要删除的配置文件(多选)',
    pageSize: 10,
    highlight: true,
    searchable: true,
    source: async function (answers: DelOptions, input: string) {
      let configPathList: string[] = []

      if (configPathMapIns[answers.configType].length === 0) {
        configPathList = await globby(
          answers.configType === 'form' ? legoOption.customFormMatch : legoOption.queryFormMatch
        )
      }

      return fuzzy.filter(input, configPathList).map(function(element) {
        return element.original;
      });
    },
    validate: (input?: string[]) => {
      if (!input || input.length === 0) {
        return '请至少选择一个配置文件'
      }

      return true
    }
  },
  {
    type: 'confirm',
    name: 'ensureToDel',
    message: '删除后配置文件将无法恢复, 确认要删除吗?'
  }
]

export default function(option: LegoOptions) {
  legoOption = option

  inquirer.prompt(questions)
    .then((answers: DelOptions) => {
      answers.configListToDel.forEach((configPath: string) => {
        fs.removeSync(configPath)
        log.success(`成功删除${configPath}`)
      })
    })
}