import type { Route } from './+types/route'

import {
  AlertCircleIcon,
  CheckCircle2Icon,
  ClockIcon,
  CalendarIcon,
  UserIcon,
  BanIcon,
  PlusIcon
} from 'lucide-react'
import { Link } from 'react-router'
import { Suspense } from 'react'

import {
  Empty,
  EmptyContent,
  EmptyDescription,
  EmptyHeader,
  EmptyMedia,
  EmptyTitle
} from '@repo/ui/components/ui/empty'
import {
  Card,
  CardContent,
  CardDescription,
  CardFooter,
  CardHeader,
  CardTitle
} from '@repo/ui/components/ui/card'
import {
  Breadcrumb,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbList,
  BreadcrumbPage,
  BreadcrumbSeparator
} from '@repo/ui/components/ui/breadcrumb'
import {
  Alert,
  AlertDescription,
  AlertTitle
} from '@repo/ui/components/ui/alert'
import { request as req } from '@repo/util/request'
import { Skeleton } from '@repo/ui/components/skeleton'
import { Await } from 'react-router'
import { Abbr } from '@repo/ui/components/abbr'
import { Button } from '@repo/ui/components/ui/button'

export function meta({}: Route.MetaArgs) {
  return [{ title: 'Relatório de matrículas' }]
}

export async function loader({ context, request, params }: Route.LoaderArgs) {
  const { orgid, id } = params
  const submission = req({
    url: `/orgs/${orgid}/enrollments/${id}/submitted`,
    context,
    request
  }).then((r) => r.json())

  return {
    data: submission
  }
}

export default function Route({ loaderData: { data } }: Route.ComponentProps) {
  return (
    <Suspense fallback={<Skeleton />}>
      <div className="space-y-2.5">
        <Breadcrumb>
          <BreadcrumbList>
            <BreadcrumbItem>
              <BreadcrumbLink asChild>
                <Link to="../enrollments">Matrículas</Link>
              </BreadcrumbLink>
            </BreadcrumbItem>
            <BreadcrumbSeparator />
            <BreadcrumbItem>
              <BreadcrumbLink asChild>
                <Link to="../enrollments/add">Adicionar matrículas</Link>
              </BreadcrumbLink>
            </BreadcrumbItem>
            <BreadcrumbSeparator />
            <BreadcrumbItem>
              <BreadcrumbPage>Relatório de matrículas</BreadcrumbPage>
            </BreadcrumbItem>
          </BreadcrumbList>
        </Breadcrumb>

        <Await resolve={data} errorElement={<NotFound />}>
          {({ enrolled, scheduled, sk, created_by }) => {
            const succeed = enrolled.filter(
              ({ status }) => status === 'success'
            )
            const failed = enrolled.filter(({ status }) => status === 'fail')

            return (
              <div className="lg:max-w-4xl mx-auto space-y-2.5">
                <Card>
                  <CardHeader>
                    <CardTitle className="text-2xl">
                      Relatório de matrículas
                    </CardTitle>
                    <CardDescription>
                      Resumo detalhado do processamento das matrículas enviadas.
                    </CardDescription>
                  </CardHeader>

                  <CardContent className="space-y-4 text-base">
                    <>
                      {succeed?.length > 0 && (
                        <Alert className="text-green-500 *:data-[slot=alert-description]:text-green-500/90">
                          <CheckCircle2Icon />
                          <AlertTitle>
                            Matrículas adicionadas com sucesso.
                          </AlertTitle>
                          <AlertDescription>
                            <ul className="list-decimal list-inside">
                              {succeed.map(({ output }, index) => (
                                <li className="space-x-1" key={index}>
                                  <Abbr>{output.user.name}</Abbr>
                                  <span>&mdash;</span>
                                  <Abbr>{output.course.name}</Abbr>
                                </li>
                              ))}
                            </ul>
                          </AlertDescription>
                        </Alert>
                      )}

                      {failed?.length > 0 && (
                        <Alert variant="destructive">
                          <AlertCircleIcon />
                          <AlertTitle>Matrículas não processadas.</AlertTitle>
                          <AlertDescription>
                            <ul className="list-decimal list-inside">
                              {failed.map(({ input_record }, index) => (
                                <li className="space-x-1" key={index}>
                                  <Abbr>{input_record.user.name}</Abbr>
                                  <span>&mdash;</span>
                                  <Abbr>{input_record.course.name}</Abbr>
                                </li>
                              ))}
                            </ul>
                          </AlertDescription>
                        </Alert>
                      )}

                      {scheduled?.length && (
                        <Alert>
                          <ClockIcon />
                          <AlertTitle>
                            Matrículas agendadas. Serão processadas na data
                            definida.
                          </AlertTitle>
                          <AlertDescription>
                            <ul className="list-decimal list-inside">
                              <li>...</li>
                              <li>...</li>
                            </ul>
                          </AlertDescription>
                        </Alert>
                      )}
                    </>
                  </CardContent>

                  <CardFooter>
                    <ul
                      className="grid lg:grid-cols-2 gap-x-2.5 text-muted-foreground text-sm
                                 *:flex *:gap-1 *:items-center"
                    >
                      <li>
                        <CalendarIcon className="size-3.5" />
                        {formatted.format(new Date(sk))}
                      </li>
                      {created_by && (
                        <li>
                          <UserIcon className="size-3.5" /> {created_by.name}
                        </li>
                      )}
                    </ul>
                  </CardFooter>
                </Card>
              </div>
            )
          }}
        </Await>
      </div>
    </Suspense>
  )
}

const formatted = new Intl.DateTimeFormat('pt-BR', {
  day: '2-digit',
  month: '2-digit',
  year: 'numeric',
  hour: '2-digit',
  minute: '2-digit'
})

function NotFound() {
  return (
    <>
      <Empty className="border border-dashed">
        <EmptyHeader>
          <EmptyMedia variant="icon">
            <BanIcon />
          </EmptyMedia>
          <EmptyTitle>Nenhum relatório aqui</EmptyTitle>
          <EmptyDescription>
            Matricule colaboradores de forma rápida e acompanhe seu progresso.
          </EmptyDescription>
        </EmptyHeader>
        <EmptyContent>
          <Button asChild>
            <Link to="../enrollments/add">
              <PlusIcon /> Matricular
            </Link>
          </Button>
        </EmptyContent>
      </Empty>
    </>
  )
}