import { useCallback, useMemo, useState } from "react";
import { APICommonResponse, apiRequest, ResultCode } from "api";
import { UseFormReturn } from "react-hook-form";
import { Dictionary } from "@types";
import { useSnackbar } from "notistack";

export const APIErrorType = {
  NONE: "none",
  INPUT: "input",
  SERVER: "server",
  EXCLUSIVE: "exclusive",
} as const;
export type APIErrorType = (typeof APIErrorType)[keyof typeof APIErrorType];

export default function useAPICall<
  T extends object,
  U extends APICommonResponse
>({
  apiMethod,
  onSuccess,
  onFailed,
  form,
  successMessage = false,
  failedMessage = false,
}: {
  apiMethod: (sendData: T) => Promise<U | null>;
  onSuccess?: (res: U, sendData: T) => void;
  onFailed?: (res: APICommonResponse | null) => void;
  form?: UseFormReturn<any>;
  successMessage?: ((res: U) => string) | boolean;
  failedMessage?: ((res: APICommonResponse | null) => string) | boolean;
}) {
  const [sending, setSending] = useState(false);
  const [sendData, setSendData] = useState<T | null>(null);
  const [result, setResult] = useState<ResultCode | null>(null);
  const [errors, setErrors] = useState<Dictionary>({});
  const [validationError, setValidationError] = useState(false);
  const [exclusiveError, setExclusiveError] = useState(false);
  const [generalErrorMessage, setGeneralErrorMessage] = useState("");

  const { enqueueSnackbar } = useSnackbar();

  const clearErrors = () => {
    setResult(null);
    setErrors({});
    setSendData(null);
    setValidationError(false);
    setExclusiveError(false);
    setGeneralErrorMessage("");
  };

  // 入力項目に対してエラーレスポンスがあるか、ないかでエラーのタイプを設定する
  const errorMode = useMemo<APIErrorType>(() => {
    if (generalErrorMessage !== "") return APIErrorType.INPUT;
    if (exclusiveError) return APIErrorType.EXCLUSIVE;
    if (validationError) return APIErrorType.INPUT;
    if (result === null) return APIErrorType.NONE;
    if (result === ResultCode.SUCCESS) return APIErrorType.NONE;
    if (sendData === null) return APIErrorType.NONE;

    const messageKeys = Object.keys(errors);
    if (messageKeys.length === 0) return APIErrorType.SERVER;

    if (sendData) {
      const sendDataKeys = Object.keys(sendData);
      const find = messageKeys.find((key: string) => {
        return sendDataKeys.includes(key);
      });
      if (find) {
        return APIErrorType.INPUT;
      }
    }
    return APIErrorType.SERVER;
  }, [result, errors, validationError, exclusiveError, generalErrorMessage]);

  const getSuccessMessageStr = useCallback(
    (res: U) => {
      if (typeof successMessage === "boolean") {
        return successMessage ? "成功しました" : "";
      }
      return successMessage(res);
    },
    [successMessage]
  );

  const getFailedMessageStr = useCallback(
    (res: APICommonResponse | null) => {
      if (typeof failedMessage === "boolean") {
        return failedMessage ? "失敗しました" : "";
      }
      return failedMessage(res);
    },
    [failedMessage]
  );

  const successCallback = (res: U, sendData: T) => {
    setResult(ResultCode.SUCCESS);
    const message = getSuccessMessageStr(res);
    if (message) {
      enqueueSnackbar(message);
    }
    if (onSuccess) {
      onSuccess(res, sendData);
    }
  };

  const failedCallback = (res: APICommonResponse | null) => {
    if (res?.result === ResultCode.EXCLUSIVE_ERROR) {
      setExclusiveError(true);
    }
    if (res) {
      setResult(res.result);
    }

    if (res?.messages.errors) {
      console.log("seterrors", res.messages.errors);
      setErrors(res.messages.errors);
    }
    if (res?.messages.general) {
      setGeneralErrorMessage(res.messages.general);
    }

    const message = getFailedMessageStr(res);
    if (message) {
      enqueueSnackbar(message, { variant: "error" });
    }
    if (onFailed) {
      onFailed(res);
    }
  };

  const handleValidationError = (error: any) => {
    console.log(error);
    setValidationError(true);
  };

  const callAPI = async (sendData: T) => {
    if (form) {
      form.clearErrors();
    }
    clearErrors();

    setSendData(sendData);
    const res = await apiRequest({
      apiMethod,
      onSuccess: successCallback,
      onFailed: failedCallback,
      sendData,
      setSending,
      errorSetter: form?.setError,
    });

    return res;
  };

  const makeSendData = (data: T) => {
    return data;
  };

  return {
    callAPI,
    sending,
    errorMode,
    generalErrorMessage,
    handleValidationError,
    makeSendData,
  };
}