// 定义接口类型
interface Question {
  id: number;
  type: number;
  question: string;
  option: Record<string, any>;
}

interface AnswerItem {
  queId: string;
  ans: string[];
  suc?: boolean;
}

interface QuizComponent {
  properties: {
    questions: Question[];
    answerList: AnswerItem[];
  };
  data: {
    selectedAnswers: Record<number, string[]>;
    renderQuestions: Array<
      Question & { options: Array<{ key: string; value: string }> }
    >;
  };
  setData: (data: Partial<Record<string, any>>, callback?: () => void) => void;
  triggerEvent: (name: string, data?: any) => void;
  isSelected: (qid: string | number, key: string) => boolean;
  getSelectedAnswer: (qid: string | number, index: number) => string;
  isCorrect: (qid: string, key: string) => boolean;
  isWrong: (qid: string, key: string) => boolean;
  handleRadioChange: (e: WechatMiniprogram.RadioGroupChange) => void;
  handleCheckboxChange: (e: WechatMiniprogram.CheckboxGroupChange) => void;
  getFormattedAnswers: () => Array<{
    questionId: number;
    answers: string[];
    questionType: number;
  }>;
  getAllAnswers: () => Array<{
    questionId: number;
    answers: string[];
    questionType: number;
  }>;
  isAllAnswered: () => boolean;
  getProgress: () => { answered: number; total: number; percentage: number };
}

// 定义常量
const QUESTION_TYPE = {
  SINGLE: 1,
  MULTIPLE: 2,
};

Component({
  properties: {
    questions: {
      type: Array,
      value: [],
    },
    answerList: {
      type: Array,
      value: [],
    },
  },

  observers: {
    "questions, answerList": function (this: QuizComponent) {
      const renderQuestions = (this.properties.questions || []).map(
        (q: Question) => ({
          ...q,
          options: Object.keys(q.option || {}).map((k) => ({
            key: k,
            value: q.option[k],
          })),
        })
      );

      const answerList = Array.isArray(this.properties.answerList)
        ? this.properties.answerList
        : [];
      const selectedAnswers = answerList.reduce((acc, item) => {
        if (item && item.queId && item.ans) {
          acc[Number(item.queId)] = Array.isArray(item.ans)
            ? item.ans
            : [item.ans];
        }
        return acc;
      }, {} as Record<number, string[]>);

      this.setData({
        renderQuestions,
        selectedAnswers,
      });
    },
  },

  data: {
    selectedAnswers: {} as Record<number, string[]>,
    renderQuestions: [] as Array<
      Question & { options: Array<{ key: string; value: string }> }
    >,
  },

  methods: {
    isSelected(this: QuizComponent, qid: string | number, key: string) {
      const selected = this.data.selectedAnswers[Number(qid)];
      return Array.isArray(selected) && selected.includes(key);
    },

    getSelectedAnswer(this: QuizComponent, qid: string | number, index: number) {
      const selected = this.data.selectedAnswers[Number(qid)];
      return Array.isArray(selected) ? selected[index] : "";
    },

    isCorrect(this: QuizComponent, qid: string, key: string) {
      const answerList = Array.isArray(this.properties.answerList)
        ? this.properties.answerList
        : [];
      return answerList.some((item: AnswerItem) => {
        const answers = Array.isArray(item.ans) ? item.ans : [];
        return String(item.queId) === String(qid) && answers.includes(key) && item.suc;
      });
    },

    isWrong(this: QuizComponent, qid: string, key: string) {
      const answerList = Array.isArray(this.properties.answerList)
        ? this.properties.answerList
        : [];
      return answerList.some((item: AnswerItem) => {
        const answers = Array.isArray(item.ans) ? item.ans : [];
        return String(item.queId) === String(qid) && answers.includes(key) && !item.suc;
      });
    },

    // 处理单选变化  { queId: q.id, ans: selectedAnswers }
    handleRadioChange(
      this: QuizComponent,
      e: WechatMiniprogram.RadioGroupChange
    ) {
      const { questionId } = e.currentTarget.dataset;
      const value = e.detail.value;
      if (!questionId) return;
      const numericQuestionId = Number(questionId);
      const newAnswers = value ? [value] : [];

      this.setData({
        [`selectedAnswers.${numericQuestionId}`]: newAnswers,
      });
      this.triggerEvent("change", {
        queId: numericQuestionId,
        ans: newAnswers,
      });
    },

    // 处理多选变化
    handleCheckboxChange(
      this: QuizComponent,
      e: WechatMiniprogram.CheckboxGroupChange
    ) {
      const { questionId } = e.currentTarget.dataset;
      const values = Array.isArray(e.detail.value) ? e.detail.value : [];
      if (!questionId) return;
      const numericQuestionId = Number(questionId);
      this.setData({
        [`selectedAnswers.${numericQuestionId}`]: values,
      });

      this.triggerEvent("change", {
        queId: numericQuestionId,
        ans: values,
      });
    },

    getFormattedAnswers(this: QuizComponent) {
      const answers = [];
      for (const [questionId, selectedOptions] of Object.entries(
        this.data.selectedAnswers
      )) {
        if (selectedOptions && selectedOptions.length > 0) {
          answers.push({
            queId: Number(questionId),
            ans: selectedOptions,
          });
        }
      }
      return answers;
    },

    getAllAnswers(this: QuizComponent) {
      return this.getFormattedAnswers();
    },

    isAllAnswered(this: QuizComponent) {
      const totalQuestions = this.properties.questions.length;
      const answeredQuestions = Object.values(this.data.selectedAnswers).filter(
        (answers) => answers && answers.length > 0
      ).length;
      return totalQuestions === answeredQuestions;
    },

    getProgress(this: QuizComponent) {
      const totalQuestions = this.data.renderQuestions.length;
      const answeredQuestions = Object.values(this.data.selectedAnswers).filter(
        (answers) => answers && answers.length > 0
      ).length;
      return {
        answered: answeredQuestions,
        total: totalQuestions,
        percentage:
          totalQuestions > 0
            ? Math.round((answeredQuestions / totalQuestions) * 100)
            : 0,
      };
    },
  },
});