EscolaLMS/sdk

import React, {
  createContext,
  FunctionComponent,
  PropsWithChildren,
  useCallback,
  useRef,
  useEffect,
} from "react";
import {
  EscolaLMSContextConfig,
  EscolaLMSContextReadConfig,
  ContextListState,
} from "./types";
import { defaultConfig } from "./defaults";
import { fetchDataType } from "./states";

import { useLocalStorage } from "../hooks/useLocalStorage";
import * as API from "./../../types/api";
import { getDefaultData } from "./index";
import { uniqueTags as getUniqueTags } from "./../../services/tags";

export const TagsContext: React.Context<
  Pick<EscolaLMSContextConfig, "uniqueTags" | "fetchTags">
> = createContext({
  uniqueTags: defaultConfig.uniqueTags,
  fetchTags: defaultConfig.fetchTags,
});

export interface TagsContextProviderType {
  apiUrl: string;
  defaults?: Partial<Pick<EscolaLMSContextReadConfig, "uniqueTags">>;
  ssrHydration?: boolean;
}

export const TagsContextProvider: FunctionComponent<
  PropsWithChildren<TagsContextProviderType>
> = ({ children, defaults, apiUrl, ssrHydration }) => {
  const abortControllers = useRef<Record<string, AbortController | null>>({});

  useEffect(() => {
    if (defaults) {
      defaults.uniqueTags !== null &&
        setUniqueTags({
          loading: false,
          list: defaults.uniqueTags?.list,
          error: undefined,
        });
    }
  }, [defaults]);

  const [uniqueTags, setUniqueTags] = useLocalStorage<
    ContextListState<API.Tag>
  >(
    "lms",
    "tags",
    getDefaultData("uniqueTags", {
      ...defaultConfig,
      ...defaults,
    }),
    ssrHydration
  );

  const fetchTags = useCallback(() => {
    return fetchDataType<API.Tag>({
      controllers: abortControllers.current,
      controller: `tags`,
      mode: "list",
      fetchAction: getUniqueTags.bind(
        null,
        apiUrl
      )({
        signal: abortControllers.current?.tags?.signal,
      }),
      setState: setUniqueTags,
    });
  }, []);

  return (
    <TagsContext.Provider
      value={{
        uniqueTags,
        fetchTags,
      }}
    >
      {children}
    </TagsContext.Provider>
  );
};