Proyectos de Subversion LeadersLinked - Backend

import React, { useEffect, useRef, useState } from "react";

import { axios } from "../../../utils";

import { useForm } from "react-hook-form";

import Emojione from "./emojione/Emojione";

import FileModal from "./fileModal/FileModal";

import MessagesList from "./messages/MessagesList";

import AttachFileIcon from "@mui/icons-material/AttachFile";

import InsertEmoticonIcon from "@mui/icons-material/InsertEmoticon";

import SendIcon from "@mui/icons-material/Send";

import styles from "./chat.module.scss";

const permittedFiles =

  "video/mp4, video/mpeg, video/webm, application/pdf, image/jpeg, image/png, image/jpg";

const Chat = ({ entity }) => {

  const [oldMessages, setOldMessages] = useState([]);

  const [messages, setMessages] = useState([]);

  const [totalPages, setTotalPages] = useState(1);

  const [currentPage, setCurrentPage] = useState(1);

  const [loading, setLoading] = useState(false);

  const [showEmojione, setShowEmojione] = useState(false);

  const [selectedFile, setSelectedFile] = useState("");

  const { handleSubmit, register } = useForm();

  const scrollList = useRef(null);

  const inputTextEl = useRef(null);

  const fileInputEl = useRef(null);

  const {

    url_get_all_messages,

    url_send,

    url_upload,

    url_close,

    url_mark_seen,

    type,

  } = entity;

  // Get messages

  const getMessages = () => {

    setLoading(true);

    axios

      .get(url_get_all_messages)

      .then(({ data: response }) => {

        const { data, success } = response;

        if (!success) {

          return console.log("Ha ocurrido un error");

        }

        const messageResponse = [...data.items].reverse();

        const updatedMessages = messageResponse.reduce(

          (acum, updatedMessage) => {

            if (

              messages.findIndex(

                (message) => message.id === updatedMessage.id

              ) === -1

            ) {

              acum = [...acum, updatedMessage];

            }

            return acum;

          },

          []

        );

        if (updatedMessages.length > 0) {

          setMessages((prevMessages) => [...prevMessages, ...updatedMessages]);

          setTotalPages(data.pages);

          scrollToBottom();

        }

      })

      .finally(() => setLoading(false));

  };

  const onIntersection = (entities) => {

    const target = entities[0];

    if (target.isIntersecting && currentPage < totalPages) {

      setCurrentPage((prevState) => prevState + 1);

      scrollTo(messageList, 200);

    }

  };

  const getOldMessages = () => {

    setLoading(true);

    axios

      .get(`${url_get_all_messages}?page=${currentPage}`)

      .then(({ data: response }) => {

        const { data, success } = response;

        if (success && data.page > 1) {

          setOldMessages([...data.items.slice().reverse(), ...oldMessages]);

        }

      })

      .finally(() => setLoading(false));

  };

  //Utilitys

  const scrollTo = (element, distance) => {

    const divToScrollEl = element.current;

    if (!distance) {

      element.current.scrollBy(0, element.current.scrollHeight);

      return;

    }

    element.current.scrollBy(0, distance);

  };

  const onClickEmoji = (event) => {

    const shortname = event.currentTarget.dataset.shortname;

    const currentText = inputTextEl.current.value;

    const cursorPosition = inputTextEl.current.selectionStart;

    const textBehind = currentText.substring(0, cursorPosition);

    const textForward = currentText.substring(cursorPosition);

    const unicode = emojione.shortnameToUnicode(shortname);

    inputTextEl.current.value = `${textBehind}${unicode}${textForward}`;

    inputTextEl.current.focus();

    inputTextEl.current.setSelectionRange(

      cursorPosition + unicode.length,

      cursorPosition + unicode.length

    );

  };

  const handleUploadFile = ({ target }) => {

    const file = target.files[0];

    if (!file) return;

    setSelectedFile(file);

  };

  const removeSelectedFile = () => {

    setSelectedFile("");

  };

  // On send

  const handleKeyDown = (e) => {

    if (e.key !== "Enter") return false;

    e.preventDefault();

    onHandleSubmit();

  };

  const onHandleSubmit = () => {

    const formData = new FormData();

    formData.append("message", emojione.toShort(inputTextEl.current.value));

    axios.post(url_send, formData).then(({ data: response }) => {

      const { data, success } = response;

      if (!success) {

        console.log("Ha ocurrido un error: " + data);

        return;

      }

      inputTextEl.current.value = "";

      setShowEmojione(false);

      scrollToBottom();

    });

  };

  const handleSendFile = () => {

    const formData = new FormData();

    formData.append("file", selectedFile);

    axios.post(url_upload, formData).then(({ data: response }) => {

      const { success, data } = response;

      if (!success) {

        console.log("Ha ocurrido un error: " + data);

        return;

      }

      setSelectedFile("");

      setShowEmojione(false);

      scrollToBottom();

    });

  };

  useEffect(() => {

    let timeInterval;

    if (loading) return;

    timeInterval = setTimeout(() => getMessages(), 2000);

    return () => {

      clearTimeout(timeInterval);

    };

  }, [loading]);

  useEffect(() => {

    setMessages([]);

    setOldMessages([]);

    setTotalPages(1);

    setCurrentPage(1);

  }, [entity]);

  useEffect(() => getOldMessages(), [currentPage]);

  useEffect(() => axios.post(url_mark_seen), []);

  return (

    <div className={styles.chat}>

      <MessagesList

        isLastPage={currentPage >= totalPages}

        messages={[...oldMessages, ...messages]}

        onIntersection={onIntersection}

        scrollRef={scrollList}

      />

      <div className={styles.chat__input__container}>

        {showEmojione && <Emojione onClickEmoji={onClickEmoji} />}

        <form

          onSubmit={handleSubmit(onHandleSubmit)}

          encType="multipart/form-data"

        >

          <button

            type="button"

            className={"btn " + styles.icon_btn}

            onClick={() => fileInputEl.current.click()}

          >

            <AttachFileIcon />

          </button>

          <button

            type="button"

            className={"btn " + styles.icon_btn}

            onClick={() => setShowEmojione(!showEmojione)}

          >

            <InsertEmoticonIcon />

          </button>

          <input

            type="file"

            ref={(e) => (fileInputEl.current = e)}

            accept={permittedFiles}

            onChange={handleUploadFile}

            hidden

          />

          <textarea

            className={styles.chatInput}

            placeholder="Escribe un mensaje"

            ref={inputTextEl}

            onKeyDown={handleKeyDown}

          />

          <button type="submit" className={"btn " + styles.send_btn}>

            <SendIcon />

          </button>

        </form>

      </div>

      {selectedFile && (

        <FileModal

          file={selectedFile}

          onCancel={removeSelectedFile}

          onSend={handleSendFile}

        />

      )}

    </div>

  );

};

export default Chat;