'use client'

import { useCallback, useEffect, useState } from 'react'
import { useRouter } from 'next/navigation'
import { Badge, Card } from 'flowbite-react'
import { LuCheck, LuCopy, LuFacebook, LuFileText } from 'react-icons/lu'
import { IoIosArrowRoundBack, IoLogoInstagram } from 'react-icons/io'
import Link from 'next/link'
import { BsGlobe2 } from 'react-icons/bs'
import { toast } from 'react-toastify'

import { useAuth } from '@/lib/context/AuthContext'
import { capitalizeWords } from '@/lib/utils/string'
import { handleApiError } from '@/lib/utils/error-handler'
import FullPageLoader from '@/lib/components/FullPageLoader'
import { TravelPartner } from '@/lib/types/partner'
import { getTravelPartner } from '@/lib/services/travel-partner-services'
import { PartnerCategory, PayoutMethod } from '@/lib/types/enums/partner'
import { cn } from '@/lib/utils/tw-merge'
import ReferralLinkCard from '../partials/ReferralLinkCard'

interface MainContentProps {
  partnerId: string
}

export default function MainContent({ partnerId }: MainContentProps) {
  const router = useRouter()
  const { user } = useAuth()
  const [isLoading, setIsLoading] = useState(true)
  const [copiedStates, setCopiedStates] = useState<Array<number>>([])
  const [travelPartner, setTravelPartner] = useState<TravelPartner | null>(null)

  useEffect(() => {
    getTravelPartner(Number(partnerId))
      .then(setTravelPartner)
      .catch((error) => {
        handleApiError(error, 'An unexpected error occurred.')
        router.replace('/travel-partners')
      })
      .finally(() => {
        setIsLoading(false)
      })
  }, [partnerId, router])

  function getSocialMediaUsername(url: string) {
    if (!url) return '-'
    const parts = url.split('/')
    return parts[parts.length - 1] || '-'
  }

  async function handleCopy(text: string, id: number) {
    try {
      await navigator.clipboard.writeText(text)
      setCopiedStates([...copiedStates, id])

      toast.success('Successfully copied to clipboard')

      setTimeout(() => {
        setCopiedStates((prev) => {
          return prev.filter((copiedState) => copiedState !== id)
        })
      }, 1000)
    } catch {
      toast.error('Failed to copy to clipboard')
    }
  }

  // Authorize User
  useEffect(() => {
    if (user && user.role !== 'super_admin' && user.role !== 'manager') {
      router.replace('/')
    }
  }, [user, router])

  const downloadQRCode = useCallback(
    (linkName: string, qrRef: SVGSVGElement | null) => {
      if (!qrRef) return

      const svg = qrRef
      const svgData = new XMLSerializer().serializeToString(svg)
      const canvas = document.createElement('canvas')
      const ctx = canvas.getContext('2d')!
      const img = new Image()

      img.onload = () => {
        canvas.width = img.width
        canvas.height = img.height
        ctx.fillStyle = '#ffffff'
        ctx.fillRect(0, 0, canvas.width, canvas.height)
        ctx.drawImage(img, 0, 0)

        const a = document.createElement('a')
        a.download = `qr-${linkName.toLowerCase().replace(/\s+/g, '-')}.png`
        a.href = canvas.toDataURL('image/png')
        a.click()
      }

      img.src = `data:image/svg+xml;base64,${btoa(svgData)}`
    },
    [],
  )

  if (isLoading) {
    return <FullPageLoader />
  }

  return (
    <article className="max-w-3xl mx-auto space-y-8 py-8">
      <Link
        href={`/travel-partners`}
        className="text-blue-500 hover:underline font-medium mb-8 flex items-center gap-2"
      >
        <IoIosArrowRoundBack className="inline w-6 h-6" />
        Back to Travel Partners
      </Link>

      {/* Account Details */}
      <Card className="shadow-none">
        <h2 className="text-2xl font-semibold text-gray-900 mb-4">
          Account Details
        </h2>

        <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
          {/* Email */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Email</h3>
            <p className="mt-1 text-gray-900">{travelPartner?.email}</p>
          </div>

          {/* Partner Category */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Category</h3>
            <Badge
              color={
                travelPartner?.partner_category === 'driver' ? 'blue' : 'green'
              }
              size="xs"
              className="w-fit mt-2"
            >
              {travelPartner?.partner_category === PartnerCategory.HotelVilla
                ? 'Hotel/Villa'
                : capitalizeWords(travelPartner?.partner_category || '')}
            </Badge>
          </div>

          {/* Guest Market */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Guest Market</h3>
            <p className="mt-1 text-gray-900">{travelPartner?.guest_market}</p>
          </div>

          {/* Referral Code */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Referral Code</h3>
            <p className="mt-1 text-gray-900 font-mono font-semibold">
              {travelPartner?.referral_code}
            </p>
          </div>
        </div>
      </Card>

      {/* Business Details */}
      {(travelPartner?.partner_category === PartnerCategory.HotelVilla ||
        travelPartner?.partner_category === PartnerCategory.Restaurant) && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Business Details
          </h2>

          <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
            {/* Business Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Business Name
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.business_name}
              </p>
            </div>

            {/* Business Email */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Business Email
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.business_email}
              </p>
            </div>

            {/* Business Address */}
            <div className="col-span-1 sm:col-span-2">
              <h3 className="text-sm font-medium text-gray-500">
                Business Address
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.business_address}
              </p>
            </div>

            {/* Number of Properties */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Number of Properties
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.number_of_properties}
              </p>
            </div>

            {/* Average Guest per Month */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Average Guest per Month
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.average_guest_per_month}
              </p>
            </div>

            {/* PIC Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">PIC Name</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.pic_name}
              </p>
            </div>

            {/* PIC Email */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">PIC Email</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.pic_email}
              </p>
            </div>

            {/* PIC Position */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                PIC Position
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.pic_position}
              </p>
            </div>

            {/* PIC Phone Number */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                PIC Phone Number
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.business?.pic_phone_number}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Driver Details */}
      {travelPartner?.partner_category === PartnerCategory.Driver && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Driver Details
          </h2>

          <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
            {/* Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">Name</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.name}
              </p>
            </div>

            {/* Email */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">Email</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.email}
              </p>
            </div>

            {/* Phone Number */}
            <div className="col-span-1 sm:col-span-2">
              <h3 className="text-sm font-medium text-gray-500">
                Phone Number
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.phone_number}
              </p>
            </div>

            {/* Address */}
            <div className="col-span-1 sm:col-span-2">
              <h3 className="text-sm font-medium text-gray-500">Address</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.address}
              </p>
            </div>

            {/* Vehicle Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Vehicle Name
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.vehicle_name}
              </p>
            </div>

            {/* Vehicle Plate */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Vehicle Plate
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.driver?.vehicle_plate}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Wise Account */}
      {travelPartner?.payout_method === PayoutMethod.Wise && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Wise Account
          </h2>

          <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
            {/* Account Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Account Name
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.wise_account?.account_name}
              </p>
            </div>

            {/* Email */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">Email</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.wise_account?.email}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Paypal Account */}
      {travelPartner?.payout_method === PayoutMethod.Paypal && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Paypal Account
          </h2>

          <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
            {/* Account Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Account Name
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.paypal_account?.account_name}
              </p>
            </div>

            {/* Email */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">Email</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.paypal_account?.email}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Bank Account */}
      {travelPartner?.payout_method === PayoutMethod.BankTransfer && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Bank Account
          </h2>

          <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
            {/* Bank Name */}
            <div className="col-span-1 sm:col-span-2">
              <h3 className="text-sm font-medium text-gray-500">Bank Name</h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.bank_account?.bank_name}
              </p>
            </div>

            {/* Account Name */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Account Name
              </h3>
              <p className="mt-1 text-gray-900">
                {travelPartner?.bank_account?.account_name}
              </p>
            </div>

            {/* Account Number */}
            <div>
              <h3 className="text-sm font-medium text-gray-500">
                Account Number
              </h3>
              <p className="mt-1 text-gray-900 font-mono font-semibold">
                {travelPartner?.bank_account?.account_number}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Agreement Document */}
      {travelPartner?.agreement_document_url && (
        <Card className="shadow-none">
          <h2 className="text-2xl font-semibold text-gray-900 mb-4">
            Agreement Document
          </h2>

          <a
            href={travelPartner.agreement_document_url}
            target="_blank"
            rel="noopener noreferrer"
            className="inline-flex items-center gap-3 rounded-xl border border-blue-100 bg-blue-50/50 px-5 py-4 text-blue-600 transition-colors hover:bg-blue-100/60"
          >
            <LuFileText className="h-5 w-5 shrink-0" />
            <span className="text-sm font-medium truncate">
              {travelPartner.agreement_document_url}
            </span>
          </a>
        </Card>
      )}

      {/* Social Media */}
      <Card className="shadow-none">
        <h2 className="text-2xl font-semibold text-gray-900 mb-4">
          Social Media
        </h2>

        <div className="grid grid-cols-1 space-y-5 sm:gap-2 sm:grid-cols-2">
          <div className="flex items-center gap-4">
            <div className="bg-pink-50 w-12 h-12 rounded-full flex items-center justify-center">
              <IoLogoInstagram className="w-6 h-6 mx-auto text-pink-500" />
            </div>
            <div>
              <h3 className="text-sm font-medium text-gray-500">Instagram</h3>
              <a
                href={travelPartner?.instagram_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                @{getSocialMediaUsername(travelPartner?.instagram_url || '')}
              </a>
            </div>
          </div>

          <div className="flex items-center gap-4">
            <div className="bg-blue-50 w-12 h-12 rounded-full flex items-center justify-center">
              <LuFacebook className="w-6 h-6 mx-auto text-blue-500" />
            </div>
            <div>
              <h3 className="text-sm font-medium text-gray-500">Facebook</h3>
              <a
                href={travelPartner?.facebook_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                @{getSocialMediaUsername(travelPartner?.facebook_url || '')}
              </a>
            </div>
          </div>

          <div className="flex items-center gap-4">
            <div className="bg-slate-100 w-12 h-12 rounded-full flex items-center justify-center">
              <BsGlobe2 className="w-6 h-6 mx-auto text-slate-500" />
            </div>
            <div>
              <h3 className="text-sm font-medium text-gray-500">Website</h3>
              <a
                href={travelPartner?.website_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                {travelPartner?.website_url || '-'}
              </a>
            </div>
          </div>
        </div>
      </Card>

      {/* Marketing Channels */}
      <Card className="shadow-none">
        <h2 className="text-2xl font-semibold text-gray-900 mb-6">
          Marketing Channels
        </h2>

        <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
          {travelPartner?.marketing_channels?.map((marketingChannel) => (
            <div
              key={marketingChannel.id}
              className="rounded-lg border border-slate-200 bg-slate-50 px-4 py-3 dark:border-slate-700"
            >
              <span className="text-base font-medium text-slate-900 dark:text-white">
                {marketingChannel.channel_name}
              </span>
            </div>
          ))}
        </div>
      </Card>

      {/* Business Widgets */}
      <Card className="shadow-none">
        <h2 className="text-2xl font-semibold text-gray-900 mb-6">
          Business Widgets
        </h2>

        <div className="grid grid-cols-1 gap-10">
          {travelPartner?.merchant_widgets?.map((merchantWidget, idx) => {
            const scriptCode = `<script src="https://widget.balirsv.com/dist/index.js"></script><ticket-search-widget widgetid="${merchantWidget.username}" refcode="${travelPartner.referral_code}"></ticket-search-widget>`

            return (
              <div key={idx}>
                <h3 className="text-lg font-semibold text-gray-900 mb-2">
                  {merchantWidget.name}
                </h3>

                <div className="relative">
                  <pre className="bg-white p-4 rounded-md border border-slate-200 overflow-x-auto">
                    <code className="text-sm font-mono text-gray-600">
                      <span className="text-blue-500">
                        {'<!-- Add this script before closing body tag -->'}
                      </span>
                      <br />
                      {`<script src="https://widget.balirsv.com/dist/index.js"></script>`}
                      <br />
                      <br />
                      <span className="text-blue-500">
                        {'<!-- Add the widget where you want it to appear -->'}
                      </span>
                      <br />
                      {`<ticket-search-widget widgetid="${merchantWidget.username}" refcode="${travelPartner.referral_code}"></ticket-search-widget>`}
                    </code>
                  </pre>
                  <button
                    onClick={() => handleCopy(scriptCode, idx)}
                    className={cn(
                      'absolute top-3 right-3 p-2 rounded-md transition-colors',
                      copiedStates.includes(idx)
                        ? 'bg-green-500 text-white'
                        : ' bg-gray-300 text-gray-700 hover:bg-gray-400',
                    )}
                  >
                    {copiedStates.includes(idx) ? (
                      <LuCheck className="w-5 h-5" />
                    ) : (
                      <LuCopy className="w-5 h-5" />
                    )}
                  </button>
                </div>
              </div>
            )
          })}
        </div>
      </Card>

      {/* Referral Links Card */}
      {travelPartner?.referral_links &&
        travelPartner?.referral_links?.length > 0 && (
          <Card className="shadow-none">
            <h2 className="text-2xl font-semibold text-gray-900 mb-6">
              Referral Links
            </h2>

            <div className="grid grid-cols-1 gap-6 sm:grid-cols-2">
              {travelPartner.referral_links.map((link) => (
                <ReferralLinkCard
                  key={link.id}
                  link={link}
                  referralCode={travelPartner.referral_code || ''}
                  onDownloadQR={downloadQRCode}
                />
              ))}
            </div>
          </Card>
        )}
    </article>
  )
}