import React from "react";
import SimpleMDE from "react-simplemde-editor";
import "easymde/dist/easymde.min.css";

<SimpleMDE />;

export const ControlledUsage = () => {
  const [value, setValue] = useState("Initial value");

  const onChange = useCallback((value: string) => {
    setValue(value);
  }, []);

  return <SimpleMdeReact value={value} onChange={onChange} />;
};

export const UsingOptions = () => {
  const [value, setValue] = useState("Initial");

  const onChange = useCallback((value: string) => {
    setValue(value);
  }, []);

  const autofocusNoSpellcheckerOptions = useMemo(() => {
    return {
      autofocus: true,
      spellChecker: false,
    } as SimpleMDE.Options;
  }, []);

  return (
    <SimpleMdeReact
      options={autofocusNoSpellcheckerOptions}
      value={value}
      onChange={onChange}
    />
  );
};

export const UpdateableByHotKeys = () => {
  const extraKeys = useMemo<KeyMap>(() => {
    return {
      Up: function (cm) {
        cm.replaceSelection(" surprise. ");
      },
      Down: function (cm) {
        cm.replaceSelection(" surprise again! ");
      },
    };
  }, []);

  const [value, setValue] = useState("initial");
  const onChange = (value: string) => setValue(value);

  return (
    <SimpleMdeReact value={value} onChange={onChange} extraKeys={extraKeys} />
  );
};

import ReactDOMServer from "react-dom/server";

export const CustomPreview = () => {
  const customRendererOptions = useMemo(() => {
    return {
      previewRender() {
        return ReactDOMServer.renderToString(
          <ReactMarkdown
            source={text}
            renderers={{
              CodeBlock: CodeRenderer,
              Code: CodeRenderer,
            }}
          />
        );
      },
    } as SimpleMDE.Options;
  }, []);

  return (
    <div>
      <h4>Custom preview</h4>
      <SimpleMdeReact options={customRendererOptions} />
    </div>
  );
};

import { SimpleMdeReact } from "react-simplemde-editor";
import type { SimpleMdeToCodemirrorEvents } from "react-simplemde-editor";

export const CustomEventListeners = () => {
  const [value, setValue] = useState("Initial value");

  const onChange = useCallback((value: string) => {
    setValue(value);
  }, []);

  // Make sure to always `useMemo` all the `options` and `events` props to ensure best performance!
  const events = useMemo(() => {
    return {
      focus: () => console.log(value),
    } as SimpleMdeToCodemirrorEvents;
  }, []);

  return <SimpleMdeReact events={events} value={value} onChange={onChange} />;
};

export const Autosaving = () => {
  const delay = 1000;
  const autosavedValue = localStorage.getItem(`smde_demo`) || "Initial value";
  const anOptions = useMemo(() => {
    return {
      autosave: {
        enabled: true,
        uniqueId: "demo",
        delay,
      },
    };
  }, [delay]);

  return (
    <SimpleMdeReact id="demo" value={autosavedValue} options={anOptions} />
  );
};

export const GetDifferentInstances = () => {
  // simple mde
  const [simpleMdeInstance, setMdeInstance] = useState<SimpleMDE | null>(null);

  const getMdeInstanceCallback = useCallback((simpleMde: SimpleMDE) => {
    setMdeInstance(simpleMde);
  }, []);

  useEffect(() => {
    simpleMdeInstance &&
      console.info("Hey I'm editor instance!", simpleMdeInstance);
  }, [simpleMdeInstance]);

  // codemirror
  const [codemirrorInstance, setCodemirrorInstance] = useState<Editor | null>(
    null
  );
  const getCmInstanceCallback = useCallback((editor: Editor) => {
    setCodemirrorInstance(editor);
  }, []);

  useEffect(() => {
    codemirrorInstance &&
      console.info("Hey I'm codemirror instance!", codemirrorInstance);
  }, [codemirrorInstance]);

  // line and cursor
  const [lineAndCursor, setLineAndCursor] = useState<Position | null>(null);

  const getLineAndCursorCallback = useCallback((position: Position) => {
    setLineAndCursor(position);
  }, []);

  useEffect(() => {
    lineAndCursor &&
      console.info("Hey I'm line and cursor info!", lineAndCursor);
  }, [lineAndCursor]);

  return (
    <div>
      <h4>Getting instance of Mde and codemirror and line and cursor info</h4>
      <SimpleMdeReact
        value="Go to console to see stuff logged"
        getMdeInstance={getMdeInstanceCallback}
        getCodemirrorInstance={getCmInstanceCallback}
        getLineAndCursor={getLineAndCursorCallback}
      />
    </div>
  );
};

import { act, render, screen } from "@testing-library/react";
import { useState } from "react";
import { SimpleMdeReact } from "SimpleMdeReact";
import userEvent from "@testing-library/user-event";

// @ts-ignore
Document.prototype.createRange = function () {
  return {
    setEnd: function () {},
    setStart: function () {},
    getBoundingClientRect: function () {
      return { right: 0 };
    },
    getClientRects: function () {
      return {
        length: 0,
        left: 0,
        right: 0,
      };
    },
  };
};

const Editor = () => {
  const [value, setValue] = useState("");
  return <SimpleMdeReact value={value} onChange={setValue} />;
};

describe("Renders", () => {
  it("succesfully", async () => {
    act(() => {
      render(<Editor />);
    });
    const editor = await screen.findByRole("textbox");
    userEvent.type(editor, "hello");
    expect(screen.getByText("hello")).toBeDefined();
  });
});

export interface SimpleMdeReactProps
  extends Omit<React.HTMLAttributes<HTMLDivElement>, "onChange"> {
  id?: string;
  onChange?: (value: string) => void;
  value?: string;
  extraKeys?: KeyMap;
  options?: SimpleMDE.Options;
  events?: SimpleMdeToCodemirrorEvents;
  getMdeInstance?: (instance: SimpleMDE) => void;
  getCodemirrorInstance?: (codemirror: Editor) => void;
  getLineAndCursor?: (position: Position) => void;
}