import trainList from "@/assets/originData/trainList";
import { AS } from "@/storageControl";
import React, { createContext, useContext, useEffect, useState } from "react";
const initialState = {
  allTrainDiagram: undefined,
  setAllTrainDiagram: () => {},
  allCustonTrainData: [],
};

const AllTrainDiagramContext = createContext(initialState);

export const useAllTrainDiagram = () => useContext(AllTrainDiagramContext);

export const AllTrainDiagramProvider = ({ children }) => {
  const [allTrainDiagram, setAllTrainDiagram] = useState(trainList);
  const [allCustonTrainData, setAllCustonTrainData] = useState([]); // カスタム列車データ
  const [keyList, setKeyList] = useState(); // 第二要素
  useEffect(
    () => allTrainDiagram && setKeyList(Object.keys(allTrainDiagram)),
    [allTrainDiagram]
  );
  useEffect(() => {
    fetch("https://n8n.haruk.in/webhook/JR-shikoku-diagram-migrate-original")
      .then((res) => res.json())
      .then((res) => res.data)
      .then((res) => {
        const data = {};
        res.forEach((d) => {
          const keys = Object.keys(d);
          data[keys] = d[keys];
        });
        return data;
      })
      .then((res) => {
        setAllTrainDiagram(res);
        AS.setItem("allTrainDiagram", JSON.stringify(res));
      })
      .catch((d) => {
        AS.getItem("allTrainDiagram")
          .then((d) => setAllTrainDiagram(JSON.parse(d)))
          .catch(() => {
            alert("初回の路線情報の取得に失敗しました。");
          });
      });
  }, []);
  useEffect(() => {
    // カスタム列車データの取得
    fetch("https://n8n.haruk.in/webhook/jr-shikoku-position-custom-datalist")
      .then((res) => res.json())
      .then((res) => {
        setAllCustonTrainData(res[0].data);
      })
      .catch(() => {
        alert("カスタム列車データの取得に失敗しました。");
      });
  }, []);

  return (
    <AllTrainDiagramContext.Provider
      value={{
        allTrainDiagram,
        setAllTrainDiagram,
        allCustonTrainData,
        keyList,
      }}
    >
      {children}
    </AllTrainDiagramContext.Provider>
  );
};