import { getDevtoArticle, getMediumArticle } from "article-api";
import moment from "moment";
import { Fragment, useEffect, useState } from "react";
import { CgHashtag } from 'react-icons/cg';
import { useSelector } from "react-redux";
import config from "../config";
import { ga, skeleton } from "../helpers/utils";
import LazyImage from "./LazyImage";

const displaySection = () => {
    if (
        typeof config.blog !== 'undefined' &&
        typeof config.blog.source !== 'undefined' &&
        typeof config.blog.username !== 'undefined' &&
        config.blog.source &&
        config.blog.username
    ) {
        return true;
    } else {
        return false;
    }
}

const Blog = () => {
    const [articles, setArticles] = useState(null);
    const loading = useSelector(state => state.loading);

    useEffect(() => {
        if (displaySection()) {
            if (config.blog.source === 'medium') {
                getMediumArticle({
                    user: config.blog.username
                })
                    .then(res => {
                        setArticles(res);
                    });
            } else if (config.blog.source === 'dev.to') {
                getDevtoArticle({
                    user: config.blog.username
                })
                    .then(res => {
                        setArticles(res);
                    });
            }
        }
    }, [])

    const renderSkeleton = () => {
        let array = [];
        for (let index = 0; index < config.blog.limit; index++) {
            array.push((
                <div className="card shadow-lg compact bg-base-100" key={index}>
                    <div className="p-8 h-full w-full">
                        <div className="flex items-center flex-col md:flex-row">
                            <div className="avatar mb-5 md:mb-0">
                                <div className="w-24 h-24 mask mask-squircle">
                                    {
                                        skeleton({
                                            width: 'w-full',
                                            height: 'h-full',
                                            shape: '',
                                        })
                                    }
                                </div>
                            </div>
                            <div className="w-full">
                                <div className="flex items-start px-4">
                                    <div className="w-full">
                                        <h2>
                                            {skeleton({ width: 'w-full', height: 'h-8', className: 'mb-2 mx-auto md:mx-0' })}
                                        </h2>
                                        {skeleton({ width: 'w-24', height: 'h-3', className: 'mx-auto md:mx-0' })}
                                        <div className="mt-3">
                                            {skeleton({ width: 'w-full', height: 'h-4', className: 'mx-auto md:mx-0' })}
                                        </div>
                                        <div className="mt-4 flex items-center flex-wrap justify-center md:justify-start">
                                            {skeleton({ width: 'w-32', height: 'h-4', className: "md:mr-2 mx-auto md:mx-0" })}
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            ))
        }

        return array;
    }

    const renderArticles = () => {
        return articles && articles.slice(0, config.blog.limit).map((article, index) => (
            <div
                className="card shadow-lg compact bg-base-100 cursor-pointer"
                key={index}
                onClick={() => {
                    try {
                        if (config.googleAnalytics.id) {
                            ga.event({
                                action: "Click Blog Post",
                                params: {
                                    post: article.title
                                }
                            });
                        }
                    } catch (error) {
                        console.error(error);
                    }

                    window.open(article.link, '_blank')
                }}
            >
                <div className="p-8 h-full w-full">
                    <div className="flex items-center flex-col md:flex-row">
                        <div className="avatar mb-5 md:mb-0 opacity-90">
                            <div className="w-24 h-24 mask mask-squircle">
                                <LazyImage
                                    src={article.thumbnail}
                                    alt={'thumbnail'}
                                    placeholder={
                                        skeleton({
                                            width: 'w-full',
                                            height: 'h-full',
                                            shape: '',
                                        })
                                    }
                                />
                            </div>
                        </div>
                        <div className="w-full">
                            <div className="flex items-start px-4">
                                <div className="text-center md:text-left w-full">
                                    <h2 className="font-semibold text-base-content opacity-60">{article.title}</h2>
                                    <p className="opacity-50 text-xs">
                                        {moment(article.publishedAt).fromNow()}
                                    </p>
                                    <p className="mt-3 text-base-content text-opacity-60 text-sm">
                                        {article.description}
                                    </p>
                                    <div className="mt-4 flex items-center flex-wrap justify-center md:justify-start">
                                        {
                                            article.categories.map((category, index2) => (
                                                <div key={index2} className="flex text-sm mr-3 items-center opacity-50 font-bold font-mono">
                                                    <CgHashtag />
                                                    <span>{category}</span>
                                                </div>
                                            ))
                                        }
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        ))
    }

    return (
        <Fragment>
            {
                displaySection() && (
                    <div className="col-span-1 lg:col-span-2">
                        <div className="grid grid-cols-2 gap-6">
                            <div className="col-span-2">
                                <div className="card compact bg-base-100 shadow-sm">
                                    <div className="card-body">
                                        <ul className="menu row-span-3 bg-base-100 text-base-content">
                                            <li>
                                                <div className="pb-0-important mx-4 flex items-center justify-between">
                                                    <h5 className="card-title">
                                                        {
                                                            (loading || !articles) ? skeleton({ width: 'w-28', height: 'h-8' }) : (
                                                                <span className="opacity-70">Recent Posts</span>
                                                            )
                                                        }
                                                    </h5>
                                                </div>
                                            </li>
                                        </ul>
                                    </div>
                                </div>
                            </div>
                            <div className="col-span-2">
                                <div className="grid grid-cols-1 gap-6">
                                    {(loading || !articles) ? renderSkeleton() : renderArticles()}
                                </div>
                            </div>
                        </div>
                    </div>
                )
            }
        </Fragment>
    )
}

export default Blog;