import Link from 'next/link';
import { useEffect, useState, forwardRef, useContext, Fragment } from 'react';
import date from 'date-and-time';
import htmlParser from 'html-react-parser';
import { UserContext } from '../../../contexts/UserContext';
import { API_URL } from '../../../utils/config/config';
import ReactMarkdown  from 'react-markdown';
import CodeBlock from "../../CodeBlock";
import api from '../../../utils/api';
import './CommentCard.css';

const CommentCard = forwardRef((props, ref) => {

    const { isAuth, user }          = useContext(UserContext);
    const [isEditing, setEditing]   = useState(false);
    const [editInput, setEditInput] = useState("");
    const [message, setMessage]     = useState("");

    useEffect(() => {
        setEditInput(props.message);
    }, []);

    const deleteCommentById = async () => {
        props.manageComment.setLoadingComments(true);
        if (isAuth && user.token != undefined) {
            try {
                await api.delete(`/comments/${props.id}`, { headers: { 'Authorization': user.token } });
                const newCommentsData = { ...props.manageComment.commentsData };
                const commentIndex    = newCommentsData.rows.findIndex((value) => value.id === props.id);
                newCommentsData.rows.splice(commentIndex, 1);
                props.manageComment.setCommentsData({ hasMore: props.manageComment.commentsData.hasMore, rows: newCommentsData.rows });
            } catch {}
        }
        props.manageComment.setLoadingComments(false);
    }

    const handleChange = (event) => {
        setEditInput(event.target.value);
    }

    const handleSubmit = (event) => {
        event.preventDefault();
        api.put(`/comments/${props.id}`, { message: editInput }, { headers: { 'Authorization': user.token } })
            .then((_response) => {
                setEditing(false);
            })
            .catch((error) => {
                setMessage(`<p class="form-error"><b>Erreur:</b> ${error.response.data.message}</p>`);
            });
    }

    const editComment = () => {
        setEditing(true);
        setMessage("");
    }

    return (
        <div ref={ref} className="CommentCard col-24">
            <div className="CommentCard__container">
                <div className="row">
                    <Link href={"/users/[name]"} as={`/users/${props.user.name}`}>
                        <img className="CommentCard__user-logo" src={API_URL + props.user.logo} alt={props.user.name} />    
                    </Link>
                    <span className="CommentCard__message-info">
                        <Link href={"/users/[name]"} as={`/users/${props.user.name}`}>
                            <a>{props.user.name}</a>
                        </Link> 
                        &nbsp;- {date.format(new Date(props.createdAt), 'DD/MM/YYYY à HH:mm', true)} 
                    </span>
                </div>
                <div className="row">
                    <div className="col-24">
                        {
                            (!isEditing) ?
                                <Fragment>
                                    <div className="CommentCard__message">
                                        <ReactMarkdown source={editInput} renderers={{ code: CodeBlock }} />
                                    </div>
                                    {(isAuth && user.name === props.user.name) && 
                                        <p style={{ fontSize: '15px', margin: '15px 0 0 0', fontStyle: 'italic' }}>
                                            <a onClick={deleteCommentById} href="#">supprimer</a>
                                            &nbsp;-&nbsp;
                                            <a style={{ cursor: 'pointer' }} onClick={editComment}>modifier</a>
                                        </p>
                                    }
                                </Fragment>
                            : 
                                <form onSubmit={handleSubmit}>
                                    <div className="form-group FunctionComments__post-group">
                                        <label className="form-label" htmlFor="commentEdit">Modifier le commentaire :</label>   
                                        <textarea style={{ height: 'auto' }} value={editInput} onChange={handleChange} name="commentEdit" id="commentEdit" className="form-control" rows="5" placeholder="Idée d'amélioration, avis, remarque, partage d'expérience personnel, ... (Markdown autorisé)"></textarea>
                                    </div>
                                    <div className="form-group" style={{ marginTop: '0.7em' }}>
                                        <button type="submit" className="btn btn-dark">Envoyer</button>
                                    </div>
                                    <div className="text-center">
                                        {htmlParser(message)}
                                    </div>
                                </form>
                        }
                    </div>
                </div>
            </div>
        </div>
    );
});

export default CommentCard;