'use client'
import { useOrg } from '@components/Contexts/OrgContext'
import { getAPIUrl, getUriWithOrg } from '@services/config/config'
import { removeCourse } from '@services/courses/activity'
import { getCourseThumbnailMediaDirectory } from '@services/media/media'
import { revalidateTags } from '@services/utils/ts/requests'
import { useLHSession } from '@components/Contexts/LHSessionContext'
import { getUserCertificates } from '@services/courses/certifications'
import Link from 'next/link'
import { useRouter } from 'next/navigation'
import { useEffect, useState } from 'react'
import { mutate } from 'swr'
import { Award, ExternalLink } from 'lucide-react'

interface TrailCourseElementProps {
  course: any
  run: any
  orgslug: string
}

function TrailCourseElement(props: TrailCourseElementProps) {
  const org = useOrg() as any
  const session = useLHSession() as any;
  const access_token = session?.data?.tokens?.access_token;
  const courseid = props.course.course_uuid.replace('course_', '')
  const course = props.course
  const router = useRouter()
  const course_total_steps = props.run.course_total_steps
  const course_completed_steps = props.run.steps.length
  const orgID = org?.id
  const course_progress = Math.round(
    (course_completed_steps / course_total_steps) * 100
  )
  
  const [courseCertificate, setCourseCertificate] = useState<any>(null)
  const [isLoadingCertificate, setIsLoadingCertificate] = useState(false)

  async function quitCourse(course_uuid: string) {
    // Close activity
    let activity = await removeCourse(course_uuid, props.orgslug,access_token)
    // Mutate course
    await revalidateTags(['courses'], props.orgslug)
    router.refresh()

    // Mutate
    mutate(`${getAPIUrl()}trail/org/${orgID}/trail`)
  }

  // Fetch certificate for this course
  useEffect(() => {
    const fetchCourseCertificate = async () => {
      if (!access_token || course_progress < 100) return;
      
      setIsLoadingCertificate(true);
      try {
        const result = await getUserCertificates(
          props.course.course_uuid,
          access_token
        );
        
        if (result.success && result.data && result.data.length > 0) {
          setCourseCertificate(result.data[0]);
        }
      } catch (error) {
        console.error('Error fetching course certificate:', error);
      } finally {
        setIsLoadingCertificate(false);
      }
    };

    fetchCourseCertificate();
  }, [access_token, course_progress, props.course.course_uuid]);

  useEffect(() => {}, [props.course, org])

  return (
    <div
      className="trailcoursebox flex p-3 bg-white rounded-xl"
      style={{ boxShadow: '0px 4px 7px 0px rgba(0, 0, 0, 0.03)' }}
    >
      <Link href={getUriWithOrg(props.orgslug, '/course/' + courseid)}>
        <div
          className="course_tumbnail inset-0 ring-1 ring-inset ring-black/10 rounded-lg relative h-[50px] w-[72px] bg-cover bg-center"
          style={{
            backgroundImage: `url(${getCourseThumbnailMediaDirectory(
              org.org_uuid,
              props.course.course_uuid,
              props.course.thumbnail_image
            )})`,
            boxShadow: '0px 4px 7px 0px rgba(0, 0, 0, 0.03)',
          }}
        ></div>
      </Link>
      <div className="course_meta pl-5 grow space-y-1">
        <div className="course_top">
          <div className="course_info flex">
            <div className="course_basic flex flex-col flex-end -space-y-2">
              <p className="p-0 font-bold text-sm text-gray-700">Course</p>
              <div className="course_progress flex items-center space-x-2">
                <h2 className="font-bold text-xl">{course.name}</h2>
                <div className="bg-slate-300 rounded-full w-[10px] h-[5px]"></div>
                <h2>{course_progress}%</h2>
              </div>
            </div>
            <div className="course_actions grow flex flex-row-reverse">
              <button
                onClick={() => quitCourse(course.course_uuid)}
                className="bg-red-200 text-red-700 hover:bg-red-300  rounded-full text-xs h-5 px-2 font-bold"
              >
                Quit Course
              </button>
            </div>
          </div>
        </div>
        <div className="course_progress indicator w-full">
          <div className="w-full bg-gray-200 rounded-full h-1.5 ">
            <div
              className={`bg-teal-600 h-1.5 rounded-full`}
              style={{ width: `${course_progress}%` }}
            ></div>
          </div>
        </div>
        
        {/* Certificate Section */}
        {course_progress === 100 && (
          <div className="mt-2 pt-2 border-t border-gray-100">
            {isLoadingCertificate ? (
              <div className="flex items-center space-x-1 text-xs text-gray-500">
                <div className="animate-spin rounded-full h-3 w-3 border-b-2 border-yellow-500"></div>
                <span>Loading...</span>
              </div>
            ) : courseCertificate ? (
              <div className="flex items-center justify-between">
                <div className="flex items-center space-x-1">
                  <Award className="w-3 h-3 text-yellow-500" />
                  <span className="text-xs font-medium text-gray-700">
                    Certificate
                  </span>
                </div>
                <Link
                  href={getUriWithOrg(props.orgslug, `/certificates/${courseCertificate.certificate_user.user_certification_uuid}/verify`)}
                  target="_blank"
                  rel="noopener noreferrer"
                  className="inline-flex items-center space-x-1 text-blue-600 hover:text-blue-700 text-xs font-medium"
                >
                  <span>Verify</span>
                  <ExternalLink className="w-3 h-3" />
                </Link>
              </div>
            ) : (
              <div className="flex items-center space-x-1 text-xs text-gray-500">
                <Award className="w-3 h-3 text-gray-300" />
                <span>No certificate</span>
              </div>
            )}
          </div>
        )}
      </div>
    </div>
  )
}

export default TrailCourseElement