import { create } from "zustand";
import { persist } from "zustand/middleware";

import { QuizQuestionEmoji } from "../model/questionTypes/emoji";
import { QuizQuestionImages } from "../model/questionTypes/images";
import { QuizQuestionVariant } from "../model/questionTypes/variant";
import { QuizQuestionVarImg } from "../model/questionTypes/varimg";

import type {
  AnyQuizQuestion,
  QuizQuestionType,
  QuestionVariant,
} from "../model/questionTypes/shared";

import { QUIZ_QUESTION_BASE } from "../constants/base";
import { QUIZ_QUESTION_DATE } from "../constants/date";
import { QUIZ_QUESTION_EMOJI } from "../constants/emoji";
import { QUIZ_QUESTION_FILE } from "../constants/file";
import { QUIZ_QUESTION_IMAGES } from "../constants/images";
import { QUIZ_QUESTION_NUMBER } from "../constants/number";
import { QUIZ_QUESTION_PAGE } from "../constants/page";
import { QUIZ_QUESTION_RATING } from "../constants/rating";
import { QUIZ_QUESTION_SELECT } from "../constants/select";
import { QUIZ_QUESTION_TEXT } from "../constants/text";
import { QUIZ_QUESTION_VARIANT } from "../constants/variant";
import { QUIZ_QUESTION_VARIMG } from "../constants/varimg";
import { setAutoFreeze } from "immer";


setAutoFreeze(false);

interface QuestionStore {
  listQuestions: Record<string, AnyQuizQuestion[]>;
  openedModalSettings: string;
}

let isFirstPartialize = true;

export const questionStore = create<QuestionStore>()(
  persist<QuestionStore>(
    () => ({
      listQuestions: {},
      openedModalSettings: "",
    }),
    {
      name: "question",
      partialize: (state: QuestionStore) => {
        if (isFirstPartialize) {
          isFirstPartialize = false;

          Object.keys(state.listQuestions).forEach((quizId) => {
            [...state.listQuestions[quizId]].forEach(({ id, deleted }) => {
              if (deleted) {
                const removedItemIndex = state.listQuestions[quizId].findIndex(
                  (item) => item.id === id
                );

                state.listQuestions[quizId].splice(removedItemIndex, 1);
              }
            });
          });
        }

        return state;
      },
        merge: (persistedState, currentState) => {
            const state = persistedState as QuestionStore;

            // replace blob urls with ""
            Object.values(state.listQuestions).forEach(questions => {
                questions.forEach(question => {
                    if (question.type === "page" && question.content.picture.startsWith("blob:")) {
                        question.content.picture = "";
                    }
                    if (question.type === "images") {
                        question.content.variants.forEach(variant => {
                            if (variant.extendedText.startsWith("blob:")) {
                                variant.extendedText = "";
                            }
                        });
                    }
                    if (question.type === "varimg") {
                        question.content.variants.forEach(variant => {
                            if (variant.extendedText.startsWith("blob:")) {
                                variant.extendedText = "";
                            }
                        });
                    }
                });
            });

            return {
                ...currentState,
                ...state,
            };
        },
    }
  )
);
export const updateQuestionsList = <T = AnyQuizQuestion>(
  quizId: number,
  index: number,
  data: Partial<T>
) => {
  const questionListClone = { ...questionStore.getState()["listQuestions"] };
  questionListClone[quizId][index] = {
    ...questionListClone[quizId][index],
    ...data,
  };
  questionStore.setState({ listQuestions: questionListClone });
};

export const updateQuestionsListDragAndDrop = (
  quizId: number,
  updatedQuestions: AnyQuizQuestion[]
) => {
  const questionListClone = { ...questionStore.getState()["listQuestions"] };
  questionStore.setState({
    listQuestions: { ...questionListClone, [quizId]: updatedQuestions },
  });
};

export const updateVariants = (
  quizId: number,
  index: number,
  variants: QuestionVariant[]
) => {
  const listQuestions = { ...questionStore.getState()["listQuestions"] };

  switch (listQuestions[quizId][index].type) {
    case "emoji":
      const emojiState = listQuestions[quizId][index] as QuizQuestionEmoji;
      emojiState.content.variants = variants;
      return questionStore.setState({ listQuestions });

    case "images":
      const imagesState = listQuestions[quizId][index] as QuizQuestionImages;
      imagesState.content.variants = variants;
      return questionStore.setState({ listQuestions });

    case "variant":
      const variantState = listQuestions[quizId][index] as QuizQuestionVariant;
      variantState.content.variants = variants;
      return questionStore.setState({ listQuestions });

    case "varimg":
      const varImgState = listQuestions[quizId][index] as QuizQuestionVarImg;
      varImgState.content.variants = variants;
      return questionStore.setState({ listQuestions });
  }
};

export const createQuestion = (
  quizId: number,
  questionType: QuizQuestionType = "nonselected",
  placeIndex = -1
) => {
  const id = getRandom();
  const newData = { ...questionStore.getState()["listQuestions"] };

  if (!newData[quizId]) {
    newData[quizId] = [];
  }

  const defaultObject = [
    QUIZ_QUESTION_BASE,
    QUIZ_QUESTION_DATE,
    QUIZ_QUESTION_EMOJI,
    QUIZ_QUESTION_FILE,
    QUIZ_QUESTION_IMAGES,
    QUIZ_QUESTION_NUMBER,
    QUIZ_QUESTION_PAGE,
    QUIZ_QUESTION_RATING,
    QUIZ_QUESTION_SELECT,
    QUIZ_QUESTION_TEXT,
    QUIZ_QUESTION_VARIANT,
    QUIZ_QUESTION_VARIMG,
  ].find((defaultObjectItem) => defaultObjectItem.type === questionType);

  if (defaultObject) {
    newData[quizId].splice(
      placeIndex < 0 ? newData[quizId].length : placeIndex,
      0,
      { ...defaultObject, id }
    );

    questionStore.setState({ listQuestions: newData });
  }
};

export const copyQuestion = (quizId: number, copiedQuestionIndex: number) => {
  const listQuestions = { ...questionStore.getState()["listQuestions"] };

  const copiedQuiz = listQuestions[quizId][copiedQuestionIndex]
  copiedQuiz.id = getRandom()
  listQuestions[quizId].splice(
    copiedQuestionIndex,
    0,
    copiedQuiz
  );

  questionStore.setState({ listQuestions });
};

export const removeQuestionForce = (quizId: number, removedId: number) => {
  const questionListClone = { ...questionStore.getState()["listQuestions"] };
  const removedItemIndex = questionListClone[quizId].findIndex(
    ({ id }) => id === removedId
  );
  questionListClone[quizId].splice(removedItemIndex, 1);
  questionStore.setState({ listQuestions: questionListClone });
};

export const removeQuestion = (quizId: number, index: number) => {
  const questionListClone = { ...questionStore.getState()["listQuestions"] };
  questionListClone[quizId][index].deleted = true;
  questionStore.setState({ listQuestions: questionListClone });
};

export const resetSomeField = (data: Record<string, string>) => {
  questionStore.setState(data);
};

export const findQuestionById = (quizId: number) => {
  let found = null;
  questionStore
    .getState()
    ["listQuestions"][quizId].some((quiz: AnyQuizQuestion, index: number) => {
      if (quiz.id === quizId) {
        found = { quiz, index };
        return true;
      }
    });
  return found;
};

function getRandom() {
  const min = Math.ceil(1000000);
  const max = Math.floor(10000000);
  return Math.floor(Math.random() * (max - min)) + min;
}