import {defineStore} from 'pinia';
import {useBundleStore} from "~/store/bundle";
import {Axe, useAxeStore} from "~/store/axe";
import type {Question} from "~/store/question";

export interface QuizResponse {
  question: string;
  score: number;
  comment: string;
}

export interface AxeResponses {
  axeIdentifier: number;
  average: number;
  responses: QuizResponse[];
}

export interface Quiz {
  id: number;
  createdDate: string;
  axes: AxeResponses[]
}

export interface Response {
  axeId: number;
  questionId: number;
  score?: number;
  comment?: string;
}

export interface QuizRate { // ?
  score?: number;
  comment?: string;
}

export const useQuizStore = defineStore('quiz', {
  state: () => ({
    axes: ref<Axe[]>([]),
    questions: ref<Map<number, Question[]>>(new Map()),
    responses: ref<Map<number, QuizRate>>(new Map()),
    questionsRatedPerAxe: ref<Map<number, Array<{ questionId: number; rated: boolean }>>>(new Map())
  }),
  actions: {

    initialize() {
      const bundle = useBundleStore().selectedBundle;
      return useAxeStore().findAxes().then(axes => {
        const promises: any[] = [];
        this.axes = axes;
        axes.forEach(axe => {
          promises.push(
            useApi(`/bundles/${bundle.id}/questions/search`, {
              params: {
                axeId: axe.id
              }
            })
              .then((questions: Question[]) => {
                return {
                  axeId: axe.identifier,
                  questions: questions
                };
              }));
        });
        Promise.all(promises).then((axeQuestions) => {
          axeQuestions.forEach(axeQuestion => {
            this.questions.set(axeQuestion.axeId, axeQuestion.questions)
          });
          this.questions.forEach((questions, axeId) => this.questionsRatedPerAxe.set(axeId, questions.map(value => {
            return {
              questionId: value.id,
              rated: this.responses.has(value.id)
            }
          })));
        });
      });
    },

    resetResponses() {
      this.responses.clear();
      this.questionsRatedPerAxe.forEach((questions) => {
        questions
          .map(value => {
            value.rated = false;
            return value;
          });
      });
    },

    updateScoreResponse(response: Response) {
      const previous = this.responses.get(response.questionId);
      if (previous) {
        this.responses.set(response.questionId, {
          comment: previous.comment,
          score: response.score
        });
      } else {
        this.responses.set(response.questionId, {
          score: response.score
        });
      }
      const questionsRated = this.questionsRatedPerAxe.get(response.axeId);
      if (questionsRated) {
        questionsRated
          .filter(value => value.questionId === response.questionId)
          .map(value => {
            value.rated = true;
            return value;
          });
      }
      // else should not happen
    },

    updateCommentResponse(response: Response) {
      const previous = this.responses.get(response.questionId);
      if (previous) {
        this.responses.set(response.questionId, {
          score: previous.score,
          comment: response.comment
        });
      } else {
        this.responses.set(response.questionId, {
          comment: response.comment
        });
      }
    },

    findQuizzes(bundleId: number) {
      return useApi("/quizzes/search", {
        params: {
          bundleId: bundleId,
          sort: "createdDate,desc"
        }
      });
    },

    findById(quizId: number) {
      return useApi(`/quizzes/${quizId}`);
    },

    save() {
      const responses = [];
      this.responses.forEach((value, key) => {
        responses.push({
          score: value.score ? value.score : 0,
          comment: value.comment,
          questionId: key
        });
      });
      return useApi("/quizzes", {
        method: "POST",
          body: {responses, bundleId: useBundleStore().selectedBundle.id}
      }).finally(() => this.resetResponses());
    }
  }
});