import { useCourse } from '@components/Contexts/CourseContext';
import { useOrg } from '@components/Contexts/OrgContext';
import { getAPIUrl } from '@services/config/config';
import { updateCourseThumbnail } from '@services/courses/courses';
import { getCourseThumbnailMediaDirectory } from '@services/media/media';
import { ArrowBigUpDash, UploadCloud } from 'lucide-react';
import React from 'react'
import { mutate } from 'swr';

function ThumbnailUpdate() {
    const course = useCourse() as any;
    const org = useOrg() as any;
    const [localThumbnail, setLocalThumbnail] = React.useState(null) as any;
    const [isLoading, setIsLoading] = React.useState(false) as any;
    const [error, setError] = React.useState('') as any;


    const handleFileChange = async (event: any) => {
        const file = event.target.files[0];
        setLocalThumbnail(file);
        setIsLoading(true);
        const res = await updateCourseThumbnail(course.courseStructure.course_uuid, file)
        mutate(`${getAPIUrl()}courses/${course.courseStructure.course_uuid}/meta`);
        // wait for 1 second to show loading animation
        await new Promise(r => setTimeout(r, 1500));
        if (res.success === false) {
            setError(res.HTTPmessage);
        } else {
            setIsLoading(false);
            setError('');
        }
    };

    return (
        <div className='w-auto bg-gray-50 rounded-xl outline outline-1 outline-gray-200 h-[200px] shadow'>
            <div className='flex flex-col justify-center items-center h-full'>
                <div className='flex flex-col justify-center items-center'>
                    <div className='flex flex-col justify-center items-center'>
                        {error && (
                            <div className="flex justify-center bg-red-200 rounded-md text-red-950 space-x-2 items-center p-2 transition-all shadow-sm">
                                <div className="text-sm font-semibold">{error}</div>
                            </div>
                        )}
                        {localThumbnail ? (
                            <img src={URL.createObjectURL(localThumbnail)} className={`${isLoading ? 'animate-pulse' : ''} shadow w-[200px] h-[100px] rounded-md`} />

                        ) : (
                            <img src={`${getCourseThumbnailMediaDirectory(org?.org_uuid, course.courseStructure.course_uuid, course.courseStructure.thumbnail_image)}`} className='shadow w-[200px] h-[100px] rounded-md' />
                        )}

                    </div>
                    {isLoading ? (<div className='flex justify-center items-center'>
                        <input type="file" id="fileInput" style={{ display: 'none' }} onChange={handleFileChange} />
                        <div
                            className='font-bold  animate-pulse antialiased items-center bg-green-200 text-gray text-sm rounded-md px-4 py-2 mt-4 flex'
                        >
                            <ArrowBigUpDash size={16} className='mr-2' />
                            <span>Uploading</span>
                        </div>
                    </div>) : (

                        <div className='flex justify-center items-center'>
                            <input type="file" id="fileInput" style={{ display: 'none' }} onChange={handleFileChange} />
                            <button
                                className='font-bold antialiased items-center  text-gray text-sm rounded-md px-4  mt-6 flex'
                                onClick={() => document.getElementById('fileInput')?.click()}
                            >
                                <UploadCloud size={16} className='mr-2' />
                                <span>Change Thumbnail</span>
                            </button>
                        </div>
                    )}
                </div>
            </div>
        </div>
    )
}

export default ThumbnailUpdate