/**
 * 调查问卷题目编辑组件 Mixin
 * @fileoverview 提供题目编辑、选项管理等功能的混入
 */

import {
  getQuestionList,
  addQuestion,
  updateQuestion
} from '@/api/survey/question'
import {
  getOptionList,
  addOption,
  updateOption
} from '@/api/survey/option'
import {
  QUESTION_TYPE_OPTIONS,
  QUESTION_REQUIRED_OPTIONS,
  QUESTION_TYPE,
  getQuestionTypeLabel,
  getQuestionTypeType,
  getQuestionTypeIcon,
  getQuestionRequiredLabel,
  getQuestionRequiredType,
  isQuestionTypeNeedOptions
} from '@/constants/survey'

/**
 * @typedef {Object} QuestionEditorData
 * @property {string|number} surveyId - 调查问卷ID
 * @property {Array<QuestionItem>} questionList - 题目列表
 * @property {boolean} loading - 加载状态
 * @property {number} total - 总数
 * @property {number} current - 当前页码
 * @property {number} size - 每页数量
 * @property {boolean} questionDialogVisible - 题目对话框显示状态
 * @property {string} questionDialogMode - 题目对话框模式 add|edit
 * @property {QuestionForm} questionForm - 题目表单
 * @property {Object} questionFormRules - 题目表单验证规则
 * @property {Array<{label: string, value: number}>} questionTypeOptions - 题目类型选项
 * @property {Array<{label: string, value: number}>} questionRequiredOptions - 是否必填选项
 * @property {Array<OptionItem>} currentQuestionOptions - 当前题目的选项列表
 * @property {boolean} optionDialogVisible - 选项对话框显示状态
 * @property {string} optionDialogMode - 选项对话框模式 add|edit
 * @property {OptionForm} optionForm - 选项表单
 * @property {Object} optionFormRules - 选项表单验证规则
 * @property {string|number} currentQuestionId - 当前编辑的题目ID
 */

export default {
  name: 'QuestionEditorMixin',

  props: {
    /**
     * 调查问卷ID
     * @type {string|number}
     */
    surveyId: {
      type: [String, Number],
      required: true
    }
  },

  data() {
    return {
      /**
       * 题目列表
       * @type {Array<QuestionItem>}
       */
      questionList: [],

      /**
       * 加载状态
       * @type {boolean}
       */
      loading: false,

      /**
       * 总数
       * @type {number}
       */
      total: 0,

      /**
       * 当前页码
       * @type {number}
       */
      current: 1,

      /**
       * 每页数量
       * @type {number}
       */
      size: 100,

      /**
       * 题目对话框显示状态
       * @type {boolean}
       */
      questionDialogVisible: false,

      /**
       * 题目对话框模式
       * @type {string}
       */
      questionDialogMode: 'add',

      /**
       * 题目表单
       * @type {QuestionForm}
       */
      questionForm: {
        surveyId: '',
        questionNo: 1,
        title: '',
        questionType: QUESTION_TYPE.SINGLE_CHOICE,
        isRequired: 0
      },

      /**
       * 题目表单验证规则
       * @type {Object}
       */
      questionFormRules: {
        title: [
          { required: true, message: '请输入题目标题', trigger: 'blur' },
          { min: 1, max: 200, message: '题目标题长度在 1 到 200 个字符', trigger: 'blur' }
        ],
        questionType: [
          { required: true, message: '请选择题目类型', trigger: 'change' }
        ],
        questionNo: [
          { required: true, message: '请输入题目序号', trigger: 'blur' },
          { type: 'number', min: 1, message: '题目序号必须大于0', trigger: 'blur' }
        ]
      },

      /**
       * 题目类型选项
       * @type {Array<{label: string, value: number}>}
       */
      questionTypeOptions: QUESTION_TYPE_OPTIONS,

      /**
       * 是否必填选项
       * @type {Array<{label: string, value: number}>}
       */
      questionRequiredOptions: QUESTION_REQUIRED_OPTIONS,

      /**
       * 当前题目的选项列表
       * @type {Array<OptionItem>}
       */
      currentQuestionOptions: [],

      /**
       * 选项对话框显示状态
       * @type {boolean}
       */
      optionDialogVisible: false,

      /**
       * 选项对话框显示状态
       * @type {boolean}
       */
      optionAddDialogVisible: false,

      /**
       * 选项对话框模式
       * @type {string}
       */
      optionDialogMode: 'add',

      /**
       * 选项表单
       * @type {OptionForm}
       */
      optionForm: {
        questionId: '',
        optionNo: 1,
        optionText: ''
      },

      /**
       * 选项表单验证规则
       * @type {Object}
       */
      optionFormRules: {
        optionText: [
          { required: true, message: '请输入选项内容', trigger: 'blur' },
          { min: 1, max: 100, message: '选项内容长度在 1 到 100 个字符', trigger: 'blur' }
        ],
        optionNo: [
          { required: true, message: '请输入选项序号', trigger: 'blur' },
          { type: 'number', min: 1, message: '选项序号必须大于0', trigger: 'blur' }
        ]
      },

      /**
       * 当前编辑的题目ID
       * @type {string|number}
       */
      currentQuestionId: ''
    }
  },

  computed: {
    /**
     * 题目对话框标题
     * @returns {string} 对话框标题
     */
    questionDialogTitle() {
      return this.questionDialogMode === 'add' ? '新增题目' : '编辑题目'
    },

    /**
     * 选项对话框标题
     * @returns {string} 对话框标题
     */
    optionDialogTitle() {
      return this.optionDialogMode === 'add' ? '新增选项' : '编辑选项'
    },

    /**
     * 是否为新增题目模式
     * @returns {boolean} 是否为新增模式
     */
    isAddQuestionMode() {
      return this.questionDialogMode === 'add'
    },

    /**
     * 是否为编辑题目模式
     * @returns {boolean} 是否为编辑模式
     */
    isEditQuestionMode() {
      return this.questionDialogMode === 'edit'
    },

    /**
     * 是否为新增选项模式
     * @returns {boolean} 是否为新增模式
     */
    isAddOptionMode() {
      return this.optionDialogMode === 'add'
    },

    /**
     * 是否为编辑选项模式
     * @returns {boolean} 是否为编辑模式
     */
    isEditOptionMode() {
      return this.optionDialogMode === 'edit'
    }
  },

  mounted() {
    this.loadQuestionList()
  },

  methods: {
    /**
     * 加载题目列表
     * @returns {Promise<void>}
     */
    async loadQuestionList() {
      try {
        this.loading = true
        const params = {
          surveyId: this.surveyId,
          size: this.size,
          current: this.current
        }

        const responseOrigin = await getQuestionList(params)
        const response = responseOrigin.data

        if (response.code === 200 && response.success) {
          this.questionList = response.data.records || []
          this.total = response.data.total || 0

          // 为每个题目加载选项
          await this.loadAllQuestionOptions()
        } else {
          this.$message.error(response.msg || '获取题目列表失败')
        }
      } catch (error) {
        console.error('加载题目列表失败:', error)
        this.$message.error('加载题目列表失败')
      } finally {
        this.loading = false
      }
    },

    /**
     * 加载所有题目的选项
     * @returns {Promise<void>}
     */
    async loadAllQuestionOptions() {
      for (const question of this.questionList) {
        if (isQuestionTypeNeedOptions(question.questionType)) {
          question.options = await this.loadQuestionOptions(question.id)
        } else {
          question.options = []
        }
      }
    },

    /**
     * 加载指定题目的选项
     * @param {string|number} questionId - 题目ID
     * @returns {Promise<Array<OptionItem>>} 选项列表
     */
    async loadQuestionOptions(questionId) {
      try {
        const params = {
          questionId,
          size: 100,
          current: 1
        }

        const responseOrigin = await getOptionList(params)
        const response = responseOrigin.data

        if (response.code === 200 && response.success) {
          return response.data.records || []
        } else {
          console.error('获取选项列表失败:', response.msg)
          return []
        }
      } catch (error) {
        console.error('加载选项列表失败:', error)
        return []
      }
    },

    /**
     * 新增题目
     * @returns {void}
     */
    handleAddQuestion() {
      this.questionDialogMode = 'add'
      this.resetQuestionForm()
      this.questionForm.surveyId = this.surveyId
      this.questionForm.questionNo = this.getNextQuestionNo()
      this.questionDialogVisible = true
    },

    /**
     * 编辑题目
     * @param {QuestionItem} question - 题目数据
     * @returns {void}
     */
    handleEditQuestion(question) {
      this.questionDialogMode = 'edit'
      this.setQuestionForm(question)
      this.questionDialogVisible = true
    },

    /**
     * 管理题目选项
     * @param {QuestionItem} question - 题目数据
     * @returns {void}
     */
    async handleManageOptions(question) {
      if (!isQuestionTypeNeedOptions(question.questionType)) {
          this.$message.warning('文本类型题目不需要设置选项')
          return
      }

      this.currentQuestionId = question.id
      this.currentQuestionOptions = await this.loadQuestionOptions(question.id)
      this.optionDialogVisible = true
    },

    /**
     * 新增选项
     * @returns {void}
     */
    handleAddOption() {
      this.optionDialogMode = 'add'
      this.optionAddDialogVisible = true
      this.resetOptionForm()
      this.optionForm.questionId = this.currentQuestionId
      this.optionForm.optionNo = this.getNextOptionNo()
      this.optionDialogVisible = true
    },

    /**
     * 编辑选项
     * @param {OptionItem} option - 选项数据
     * @returns {void}
     */
    handleEditOption(option) {
      this.optionDialogMode = 'edit'
      this.setOptionForm(option)
      this.optionDialogVisible = true
      this.optionAddDialogVisible = true
    },

    /**
     * 提交题目表单
     * @returns {Promise<void>}
     */
    async handleSubmitQuestion() {
      try {
        const valid = await this.$refs.questionForm.validate()
        if (!valid) return

        this.loading = true

        let response
        if (this.isAddQuestionMode) {
          response = await addQuestion(this.questionForm)
        } else {
          response = await updateQuestion(this.questionForm)
        }
        response = response.data

        if (response.code === 200 && response.success) {
          this.$message.success(response.msg || '操作成功')
          this.questionDialogVisible = false
          await this.loadQuestionList()
        } else {
          this.$message.error(response.msg || '操作失败')
        }
      } catch (error) {
        console.error('提交题目表单失败:', error)
        this.$message.error('操作失败')
      } finally {
        this.loading = false
      }
    },

    /**
     * 提交选项表单
     * @returns {Promise<void>}
     */
    async handleSubmitOption() {
      try {
        const valid = await this.$refs.optionForm.validate()
        if (!valid) return

        this.loading = true

        let response
        if (this.isAddOptionMode) {
          response = await addOption(this.optionForm)
        } else {
          response = await updateOption(this.optionForm)
        }

        response = response.data

        if (response.code === 200 && response.success) {
          this.$message.success(response.msg || '操作成功')
          // this.optionDialogVisible = false
          this.optionAddDialogVisible = false
          this.currentQuestionOptions = await this.loadQuestionOptions(this.currentQuestionId)
          await this.loadQuestionList()
        } else {
          this.$message.error(response.msg || '操作失败')
        }
      } catch (error) {
        console.error('提交选项表单失败:', error)
        this.$message.error('操作失败')
      } finally {
        this.loading = false
      }
    },

    /**
     * 设置题目表单数据
     * @param {QuestionItem} question - 题目数据
     * @returns {void}
     */
    setQuestionForm(question) {
      this.questionForm = {
        id: question.id,
        surveyId: question.surveyId,
        questionNo: question.questionNo,
        title: question.title,
        questionType: question.questionType,
        isRequired: question.isRequired
      }
    },

    /**
     * 重置题目表单
     * @returns {void}
     */
    resetQuestionForm() {
      this.questionForm = {
        surveyId: this.surveyId,
        questionNo: 1,
        title: '',
        questionType: QUESTION_TYPE.SINGLE_CHOICE,
        isRequired: 0
      }

      this.$nextTick(() => {
        this.$refs.questionForm?.clearValidate()
      })
    },

    /**
     * 设置选项表单数据
     * @param {OptionItem} option - 选项数据
     * @returns {void}
     */
    setOptionForm(option) {
      this.optionForm = {
        id: option.id,
        questionId: option.questionId,
        optionNo: option.optionNo,
        optionText: option.optionText
      }
    },

    /**
     * 重置选项表单
     * @returns {void}
     */
    resetOptionForm() {
      this.optionForm = {
        questionId: this.currentQuestionId,
        optionNo: 1,
        optionText: ''
      }

      this.$nextTick(() => {
        this.$refs.optionForm?.clearValidate()
      })
    },

    /**
     * 关闭题目对话框
     * @returns {void}
     */
    handleCloseQuestionDialog() {
      this.questionDialogVisible = false
      this.resetQuestionForm()
    },

    /**
     * 关闭选项对话框
     * @returns {void}
     */
    handleCloseOptionDialog() {
      this.optionDialogVisible = false
      this.resetOptionForm()
        this.currentQuestionOptions = []
        this.optionAddDialogVisible = false
    },

    /**
     * 获取下一个题目序号
     * @returns {number} 下一个序号
     */
    getNextQuestionNo() {
      if (this.questionList.length === 0) return 1
      const maxNo = Math.max(...this.questionList.map(q => q.questionNo))
      return maxNo + 1
    },

    /**
     * 获取下一个选项序号
     * @returns {number} 下一个序号
     */
    getNextOptionNo() {
      if (this.currentQuestionOptions.length === 0) return 1
      const maxNo = Math.max(...this.currentQuestionOptions.map(o => o.optionNo))
      return maxNo + 1
    },

    /**
     * 获取题目类型标签
     * @param {number} questionType - 题目类型
     * @returns {string} 类型标签
     */
    getQuestionTypeLabel(questionType) {
      return getQuestionTypeLabel(questionType)
    },

    /**
     * 获取题目类型类型
     * @param {number} questionType - 题目类型
     * @returns {string} 类型类型
     */
    getQuestionTypeType(questionType) {
      return getQuestionTypeType(questionType)
    },

    /**
     * 获取题目类型图标
     * @param {number} questionType - 题目类型
     * @returns {string} 类型图标
     */
    getQuestionTypeIcon(questionType) {
      return getQuestionTypeIcon(questionType)
    },

    /**
     * 获取是否必填标签
     * @param {number} isRequired - 是否必填
     * @returns {string} 必填标签
     */
    getQuestionRequiredLabel(isRequired) {
      return getQuestionRequiredLabel(isRequired)
    },

    /**
     * 获取是否必填类型
     * @param {number} isRequired - 是否必填
     * @returns {string} 必填类型
     */
    getQuestionRequiredType(isRequired) {
      return getQuestionRequiredType(isRequired)
    },

    /**
     * 判断题目类型是否需要选项
     * @param {number} questionType - 题目类型
     * @returns {boolean} 是否需要选项
     */
    isQuestionTypeNeedOptions(questionType) {
      return isQuestionTypeNeedOptions(questionType)
    }
  }
}