/**
 * WordPress dependencies
 */
import { __ } from "@wordpress/i18n";
import { useEffect, useState, createRef, useRef, memo } from "@wordpress/element";
import { safeHTML } from "@wordpress/dom";
import { applyFilters } from "@wordpress/hooks";
import { dateI18n, format, getSettings } from "@wordpress/date";
import { select } from "@wordpress/data";
/**
 * External depencencies
 */
import Slider from "react-slick";
import parse from "html-react-parser";
/**
 * Internal depencencies
 */
import Inspector from "./inspector";
import Style from "./style";
import PostCarouselIcon from "./icon";
import Templates from '../../../../patterns/post-carousel.json'
import defaultAttributes from './attributes';

import {
    ebJsonStringCheck,
    CustomQuery,
    DynamicInputValueHandler,
    BrowseTemplate,
    BlockProps,
    withBlockContext,
    sanitizeIconValue,
    EBDisplayIconEdit
} from "@essential-blocks/controls";



const SlickArrow = (props) => {
    const { className, style, onClick, faClass } = props;

    return (
        <div className={className} style={{ ...style }} onClick={onClick}>
            <EBDisplayIconEdit icon={sanitizeIconValue(faClass)} />
        </div>
    );
};

const Edit = (props) => {
    const { attributes, setAttributes, isSelected } = props;
    const {
        blockId,
        preset,
        showThumbnail,
        showTitle,
        titleLength,
        titleTag,
        showContent,
        contentLength,
        expansionIndicator,
        showReadMore,
        readmoreText,
        showMeta,
        headerMeta,
        footerMeta,
        authorPrefix,
        datePrefix,
        classHook,
        arrows,
        adaptiveHeight,
        autoplay,
        autoplaySpeed,
        dots,
        infinite,
        pauseOnHover,
        speed,
        slideToShowRange,
        TABslideToShowRange,
        MOBslideToShowRange,
        dotPreset,
        leftArrowIcon,
        rightArrowIcon,
        cover,
        showBlockContent,
        showFallbackImg,
        fallbackImgUrl,
        fallbackImgAlt,
        isRTLEnable
    } = attributes;

    const [queryResults, setQueryResults] = useState(false);
    // const [didMount, setDidMount] = useState(false);
    const didMount = useRef(false)

    const dateFormat = getSettings().formats.date;

    // you must declare this variable
    const enhancedProps = {
        ...props,
        blockPrefix: 'eb-post-carousel',
        style: <Style {...props} />
    };

    useEffect(() => {
        if (eb_conditional_localize && eb_conditional_localize.editor_type == 'edit-site') {
            const { isRTL } = select('core/edit-site').getSettings();
            setAttributes({ isRTLEnable: isRTL });
        } else {
            const { isRTL } = select("core/editor").getEditorSettings();
            setAttributes({ isRTLEnable: isRTL });
        }
    }, []);

    // this useEffect is for creating a unique id for each block's unique className by a random unique number
    useEffect(() => {
        if (showBlockContent && typeof queryResults === 'object') {
            didMount.current = true
        }
        else {
            didMount.current = false
        }
    }, [showBlockContent]);

    const TABslideToShowRanges = TABslideToShowRange ? TABslideToShowRange : 2;
    const MOBslideToShowRanges = MOBslideToShowRange ? MOBslideToShowRange : 1;

    /**
     * func slideToShowCount
     * @param {number} range
     * @param {object} posts
     * @returns {number}
     */
    const slideToShowCount = (range, posts) => {
        if (typeof posts === 'object' && Object.keys(posts).length < range) {
            return Object.keys(posts).length
        }
        return range
    }

    const settings = {
        arrows,
        autoplay,
        autoplaySpeed,
        dots,
        infinite,
        pauseOnHover,
        slidesToShow: slideToShowCount(slideToShowRange, queryResults),
        speed,
        rtl: isRTLEnable,
        prevArrow: <SlickArrow faClass={leftArrowIcon} />,
        nextArrow: <SlickArrow faClass={rightArrowIcon} />,
        responsive: [
            {
                breakpoint: 1024,
                settings: {
                    slidesToShow: slideToShowCount(TABslideToShowRanges, queryResults),
                },
            },
            {
                breakpoint: 767,
                settings: {
                    slidesToShow: slideToShowCount(MOBslideToShowRanges, queryResults),
                },
            },
        ],
    };

    const slider = createRef();

    return cover.length ? (
        <div>
            <img src={cover} alt="post carousel" style={{ maxWidth: "100%" }} />
        </div>
    ) : (
        <>
            {isSelected && showBlockContent && <Inspector {...props} slider={slider} setQueryResults={setQueryResults} />}

            {showBlockContent && didMount.current === false && (
                <>
                    {queryResults === false && (
                        <div className="eb-loading">
                            <img src={`${EssentialBlocksLocalize?.image_url}/ajax-loader.gif`} alt="Loading..." />
                        </div>
                    )}
                    <CustomQuery
                        isEdit={true}
                        attributes={attributes}
                        setAttributes={setAttributes}
                        setQueryResults={setQueryResults}
                    />
                </>
            )}
            <BlockProps.Edit {...enhancedProps}>

                <BrowseTemplate
                    {...props}
                    Icon={PostCarouselIcon}
                    title={"Post Carousel"}
                    description={"Choose a template for the Post Carousel or start blank."}
                    patterns={Templates}
                />

                {showBlockContent && (
                    <>
                        {queryResults !== false && (
                            <div className={`eb-parent-wrapper eb-parent-${blockId} ${classHook}`}>
                                <div
                                    className={`eb-post-carousel-wrapper ${blockId} ${dotPreset} ${preset} ${dots ? "eb-slider-dots" : ""
                                        } ${adaptiveHeight ? "equal-height" : ""}`}
                                    data-id={blockId}
                                >
                                    <Slider {...settings} ref={slider}>
                                        {typeof queryResults === "object" &&
                                            queryResults.length > 0 &&
                                            queryResults.map((post, index) => {
                                                //Generate Featured Image
                                                const {
                                                    featuredImageInfo: { url: imageSourceUrl, alt: featuredImageAlt } = {},
                                                } = post;
                                                const featuredImage = showThumbnail && (
                                                    <img key={index} src={imageSourceUrl} alt={featuredImageAlt} />
                                                );

                                                //Generate Title
                                                const title = post?.title?.rendered;
                                                const titleWithLimitWords =
                                                    titleLength >= 0 ? title.trim().split(" ", titleLength).join(" ") : title;
                                                const titleHTML = safeHTML(`
						<${titleTag} class="ebpg-entry-title">
							<a class="ebpg-carousel-post-link" href="#" title="${titleWithLimitWords}">
								${titleWithLimitWords}
							</a>
						</${titleTag}>
					`);

                                                //Generate Excerpt & Read More
                                                let excerpt = post?.excerpt ? post?.excerpt?.rendered : post?.content?.rendered;

                                                const excerptElement = document.createElement("div");
                                                excerptElement.innerHTML = excerpt ? excerpt : "";
                                                excerpt = excerptElement.textContent || excerptElement.innerText || "";
                                                const excerptWithLimitWords =
                                                    contentLength >= 0
                                                        ? excerpt.trim().split(" ", contentLength).join(" ")
                                                        : excerpt;

                                                const avatarUrl = (author) => {
                                                    if (author.avatar_urls && author.avatar_urls[96]) {
                                                        return author.avatar_urls[96];
                                                    } else {
                                                        return "http://1.gravatar.com/avatar/467ceabf70aaa0e555b7dd11c9729241?s=96&d=mm&r=g";
                                                    }
                                                };
                                                const avatar =
                                                    post._embedded && post._embedded.author ? (
                                                        <div className="ebpg-author-avatar">
                                                            <a href={post._embedded.author[0].link}>
                                                                <img
                                                                    alt={
                                                                        post._embedded.author[0].name
                                                                            ? post._embedded.author[0].name
                                                                            : post._embedded.author[0].slug
                                                                    }
                                                                    src={avatarUrl(post._embedded.author[0])}
                                                                />
                                                            </a>
                                                        </div>
                                                    ) : (
                                                        ""
                                                    );

                                                const date = (
                                                    <span className="ebpg-posted-on">
                                                        <DynamicInputValueHandler
                                                            value={datePrefix}
                                                            tagName="span"
                                                            onChange={(datePrefix) =>
                                                                setAttributes({
                                                                    datePrefix,
                                                                })
                                                            }
                                                            readOnly={true}
                                                        />{" "}
                                                        <time
                                                            dateTime={format(
                                                                "c",
                                                                post.date_gmt
                                                            )}
                                                        >
                                                            {dateI18n(
                                                                dateFormat,
                                                                post.date_gmt
                                                            )}
                                                        </time>
                                                    </span>
                                                );

                                                const author =
                                                    post._embedded && post._embedded.author ? (
                                                        <span className="ebpg-posted-by">
                                                            <DynamicInputValueHandler
                                                                value={authorPrefix}
                                                                tagName="span"
                                                                onChange={(frontTitle) =>
                                                                    setAttributes({
                                                                        frontTitle,
                                                                    })
                                                                }
                                                                readOnly={true}
                                                            />{" "}
                                                            <a
                                                                href="#"
                                                                title={
                                                                    post._embedded.author[0].name
                                                                        ? post._embedded.author[0].name
                                                                        : post._embedded.author[0].slug
                                                                }
                                                                rel="author"
                                                            >
                                                                {post._embedded.author[0].name
                                                                    ? post._embedded.author[0].name
                                                                    : post._embedded.author[0].slug}
                                                            </a>
                                                        </span>
                                                    ) : (
                                                        ""
                                                    );

                                                const postTermsVal = {};
                                                post._embedded &&
                                                    post._embedded["wp:term"] &&
                                                    post._embedded["wp:term"].length > 0 &&
                                                    post._embedded["wp:term"].map((item) => {
                                                        let termObj = {};
                                                        let termName = "";
                                                        item.length > 0 &&
                                                            item.map((term) => {
                                                                termName = term.taxonomy;
                                                                termObj[term.slug] = {
                                                                    name: term.name,
                                                                    id: term.id,
                                                                    link: term.link,
                                                                    slug: term.slug,
                                                                };
                                                            });
                                                        postTermsVal[termName] = termObj;
                                                    });

                                                const postTermsHtml = {};
                                                if (Object.keys(postTermsVal).length > 0) {
                                                    Object.keys(postTermsVal).map((term) => {
                                                        let termClass = term;
                                                        if (term === "category") {
                                                            termClass = "categories";
                                                        } else if (term === "post_tag") {
                                                            termClass = "tags";
                                                        }
                                                        let markup = `<div className="ebpg-meta ebpg-${termClass}-meta">`;
                                                        Object.keys(postTermsVal[term]).length > 0 &&
                                                            Object.keys(postTermsVal[term]).map((item, index) => {
                                                                markup += `
													<a
														key=${index}
														href=${postTermsVal[term][item].link}
														title=${postTermsVal[term][item].name}
													>
														${postTermsVal[term][item].name}
													</a>
												`;
                                                            });
                                                        markup += `</div>`;
                                                        postTermsHtml[term] = markup;
                                                    });
                                                }

                                                const categories = postTermsVal.category ? (
                                                    <div className="ebpg-meta ebpg-categories-meta">
                                                        {Object.keys(postTermsVal.category).map((item, index) => (
                                                            <a
                                                                key={index}
                                                                href={postTermsVal.category[item].link}
                                                                title={postTermsVal.category[item].name}
                                                            >
                                                                {postTermsVal.category[item].name}
                                                            </a>
                                                        ))}
                                                    </div>
                                                ) : (
                                                    ""
                                                );

                                                const tags = postTermsVal.post_tag ? (
                                                    <div className="ebpg-meta ebpg-tags-meta">
                                                        {Object.keys(postTermsVal.post_tag).map((item, index) => (
                                                            <a
                                                                key={index}
                                                                href={postTermsVal.post_tag[item].link}
                                                                title={postTermsVal.post_tag[item].name}
                                                            >
                                                                {postTermsVal.post_tag[item].name}
                                                            </a>
                                                        ))}
                                                    </div>
                                                ) : (
                                                    ""
                                                );

                                                const metaObject = {
                                                    date,
                                                    author,
                                                    categories,
                                                    tags,
                                                };

                                                const headerMetaItems = ebJsonStringCheck(headerMeta)
                                                    ? JSON.parse(headerMeta).map((item) => item.value)
                                                    : [];
                                                const headerMetaHtml = showMeta ? (
                                                    <div className="ebpg-entry-meta ebpg-header-meta">
                                                        {headerMetaItems.includes("avatar") && avatar}
                                                        <div className="ebpg-entry-meta-items">
                                                            {headerMetaItems.map((item) => {
                                                                if (metaObject.hasOwnProperty(item)) {
                                                                    return metaObject[item];
                                                                } else if (postTermsHtml.hasOwnProperty(item)) {
                                                                    return parse(postTermsHtml[item]);
                                                                } else {
                                                                    if (item === "avatar") {
                                                                        return;
                                                                    }
                                                                    return applyFilters("essential_blocks_post_carousel_dynamic_fields_markup",
                                                                        "",
                                                                        item
                                                                    );
                                                                }
                                                            })}
                                                        </div>
                                                    </div>
                                                ) : (
                                                    ""
                                                );

                                                const footerMetaItems = ebJsonStringCheck(footerMeta)
                                                    ? JSON.parse(footerMeta).map((item) => item.value)
                                                    : [];
                                                const footerMetaHtml = showMeta ? (
                                                    <div className="ebpg-entry-meta ebpg-footer-meta">
                                                        {footerMetaItems.includes("avatar") && avatar}
                                                        <div className="ebpg-entry-meta-items">
                                                            {footerMetaItems.map((item) => {
                                                                if (metaObject.hasOwnProperty(item)) {
                                                                    return metaObject[item];
                                                                } else if (postTermsHtml.hasOwnProperty(item)) {
                                                                    return parse(postTermsHtml[item]);
                                                                } else {
                                                                    if (item === "avatar") {
                                                                        return;
                                                                    }
                                                                    return applyFilters("essential_blocks_post_carousel_dynamic_fields_markup",
                                                                        "",
                                                                        item
                                                                    );
                                                                }
                                                            })}
                                                        </div>
                                                    </div>
                                                ) : (
                                                    ""
                                                );

                                                return (
                                                    <article
                                                        className="ebpg-carousel-post ebpg-post-carousel-column"
                                                        data-id={post.id}
                                                    >
                                                        <div className="ebpg-carousel-post-holder">
                                                            {preset === "style-4" && (
                                                                <a className="ebpg-post-link-wrapper" href="#"></a>
                                                            )}
                                                            <div className="ebpg-entry-media">
                                                                {showThumbnail && (
                                                                    <div className="ebpg-entry-thumbnail">
                                                                        {preset !== "style-4" && (
                                                                            <a className="ebpg-post-link-wrapper" href="#"></a>
                                                                        )}
                                                                        {post._embedded &&
                                                                            post._embedded["wp:featuredmedia"] &&
                                                                            post._embedded["wp:featuredmedia"].length > 0 && (
                                                                                <img
                                                                                    src={
                                                                                        post._embedded["wp:featuredmedia"][0]
                                                                                            .source_url
                                                                                    }
                                                                                    alt={post?.title?.alt_text}
                                                                                />
                                                                            )}
                                                                        {post._embedded && !post._embedded["wp:featuredmedia"] && (
                                                                            <>
                                                                                {showFallbackImg && fallbackImgUrl && (
                                                                                    <img
                                                                                        src={fallbackImgUrl}
                                                                                        alt={`${fallbackImgAlt ? fallbackImgAlt : `No Thumbnail Available`}`}
                                                                                    />
                                                                                )}

                                                                                {(!showFallbackImg || (showFallbackImg && fallbackImgUrl === undefined)) && (
                                                                                    <img
                                                                                        src={EssentialBlocksLocalize?.placeholder_image}
                                                                                        alt="No Thumbnail Available"
                                                                                    />
                                                                                )}
                                                                            </>
                                                                        )}
                                                                    </div>
                                                                )}
                                                            </div>

                                                            <div className="ebpg-entry-wrapper">
                                                                {/* Header Meta */}
                                                                {showMeta && headerMetaHtml}

                                                                {showTitle && (
                                                                    <header
                                                                        className="ebpg-entry-header"
                                                                        dangerouslySetInnerHTML={{
                                                                            __html: titleHTML,
                                                                        }}
                                                                    ></header>
                                                                )}

                                                                <div className="ebpg-entry-content">
                                                                    {showContent && excerptWithLimitWords && (
                                                                        <div className="ebpg-carousel-post-excerpt">
                                                                            <p>
                                                                                {excerptWithLimitWords}
                                                                                {__(expansionIndicator)}
                                                                            </p>
                                                                        </div>
                                                                    )}
                                                                    {showReadMore && (
                                                                        <div className="ebpg-readmore-btn">
                                                                            <a href="#">{__(readmoreText)}</a>
                                                                        </div>
                                                                    )}
                                                                </div>
                                                                {/* Footer Meta */}
                                                                {showMeta && footerMetaHtml}
                                                            </div>
                                                        </div>
                                                    </article>
                                                );
                                            })}
                                        {typeof queryResults != "undefined" && queryResults.length < 1 && <p>No Posts Found</p>}
                                    </Slider>
                                </div>
                            </div>
                        )}
                    </>
                )}
            </BlockProps.Edit>
        </>
    );
}

export default memo(withBlockContext(defaultAttributes)(Edit))
