'use client'

import { useCallback, useEffect, useState } from 'react'
import { useRouter } from 'next/navigation'
import { Card } from 'flowbite-react'
import { LuAward, LuFacebook, LuPercent, LuWallet } from 'react-icons/lu'
import { IoIosArrowRoundBack, IoLogoInstagram } from 'react-icons/io'
import Link from 'next/link'
import { BsGlobe2 } from 'react-icons/bs'

import { useAuth } from '@/lib/context/AuthContext'
import { capitalizeWords } from '@/lib/utils/string'
import { formatIDR } from '@/lib/utils/currency'
import { formatDateToLongFormat } from '@/lib/utils/date'
import { handleApiError } from '@/lib/utils/error-handler'
import FullPageLoader from '@/lib/components/FullPageLoader'
import { AffiliatePartner } from '@/lib/types/partner'
import { getAffiliatePartner } from '@/lib/services/affiliate-partner-services'
import { PayoutMethod } from '@/lib/types/enums/partner'
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 [affiliatePartner, setAffiliatePartner] =
    useState<AffiliatePartner | null>(null)

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

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

  // 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={`/affiliate-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 Affiliate 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">{affiliatePartner?.email}</p>
          </div>

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

      {/* Affiliate Details */}
      <Card className="shadow-none">
        <h2 className="text-2xl font-semibold text-gray-900 mb-4">
          Affiliate 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">
              {affiliatePartner?.affiliate?.name}
            </p>
          </div>

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

          {/* Phone Number */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Phone Number</h3>
            <p className="mt-1 text-gray-900 font-mono font-bold">
              {affiliatePartner?.affiliate?.phone_number}
            </p>
          </div>

          {/* Date of Birth */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Date of Birth</h3>
            <p className="mt-1 text-gray-900">
              {formatDateToLongFormat(
                affiliatePartner?.affiliate?.date_of_birth,
              )}
            </p>
          </div>

          {/* Language */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Language</h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.language?.name}
            </p>
          </div>

          {/* Affiliate Category */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">
              Affiliate Category
            </h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.affiliate_category?.name}
            </p>
          </div>

          {/* Niche */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Niche</h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.niche}
            </p>
          </div>

          {/* Affiliate Experience */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">
              Affiliate Experience
            </h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.affiliate_experience
                ? capitalizeWords(
                    affiliatePartner.affiliate.affiliate_experience,
                  )
                : '-'}
            </p>
          </div>

          {/* Country */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Country</h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.country?.en_short_name}
            </p>
          </div>

          {/* Address */}
          <div>
            <h3 className="text-sm font-medium text-gray-500">Address</h3>
            <p className="mt-1 text-gray-900">
              {affiliatePartner?.affiliate?.address}
            </p>
          </div>
        </div>
      </Card>

      {/* Wise Account */}
      {affiliatePartner?.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">
                {affiliatePartner?.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">
                {affiliatePartner?.wise_account?.email}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Paypal Account */}
      {affiliatePartner?.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">
                {affiliatePartner?.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">
                {affiliatePartner?.paypal_account?.email}
              </p>
            </div>
          </div>
        </Card>
      )}

      {/* Bank Account */}
      {affiliatePartner?.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">
                {affiliatePartner?.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">
                {affiliatePartner?.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">
                {affiliatePartner?.bank_account?.account_number}
              </p>
            </div>
          </div>
        </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={affiliatePartner?.instagram_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                @{getSocialMediaUsername(affiliatePartner?.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={affiliatePartner?.facebook_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                @{getSocialMediaUsername(affiliatePartner?.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={affiliatePartner?.website_url}
                target="_blank"
                rel="noopener noreferrer"
                className="mt-1 text-blue-600 hover:underline block"
              >
                {affiliatePartner?.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">
          {affiliatePartner?.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>

      {/* Referral Links Card */}
      {affiliatePartner?.referral_links &&
        affiliatePartner?.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">
              {affiliatePartner.referral_links.map((link) => (
                <ReferralLinkCard
                  key={link.id}
                  link={link}
                  referralCode={affiliatePartner.referral_code || ''}
                  onDownloadQR={downloadQRCode}
                />
              ))}
            </div>
          </Card>
        )}

      {/* Affiliate Profile */}
      <Card className="shadow-none border-2 border-indigo-200">
        <div className="flex items-center gap-4">
          <div className="flex h-14 w-14 shrink-0 items-center justify-center rounded-full bg-gradient-to-br from-indigo-500 to-purple-600 ring-1 ring-indigo-200">
            <LuAward className="h-7 w-7 text-amber-300" />
          </div>
          <div>
            <p className="text-sm font-medium text-indigo-600">
              Affiliate Profile
            </p>
            <h2 className="text-2xl font-bold text-gray-900">
              {affiliatePartner?.affiliate?.affiliate_level?.name || 'Unranked'}
            </h2>
          </div>
        </div>

        <div className="mt-6 grid grid-cols-1 gap-4 sm:grid-cols-2">
          {/* Discount Rate */}
          <div className="rounded-xl bg-indigo-50 p-4 ring-1 ring-indigo-100">
            <div className="flex items-center gap-2 text-indigo-600">
              <LuPercent className="h-4 w-4" />
              <span className="text-xs font-semibold uppercase tracking-wide">
                Discount Rate
              </span>
            </div>
            <p className="mt-2 text-2xl font-bold text-gray-900">
              {affiliatePartner?.affiliate?.affiliate_level?.discount_rate
                ? `${parseFloat(
                    String(
                      affiliatePartner.affiliate.affiliate_level.discount_rate,
                    ),
                  )}%`
                : '-'}
            </p>
          </div>

          {/* Min Sales Volume */}
          <div className="rounded-xl bg-purple-50 p-4 ring-1 ring-purple-100">
            <div className="flex items-center gap-2 text-purple-600">
              <LuWallet className="h-4 w-4" />
              <span className="text-xs font-semibold uppercase tracking-wide">
                Min Sales Volume
              </span>
            </div>
            <p className="mt-2 text-2xl font-bold text-gray-900">
              {affiliatePartner?.affiliate?.affiliate_level?.min_sales_volume !=
              null
                ? formatIDR(
                    affiliatePartner.affiliate.affiliate_level.min_sales_volume,
                  )
                : '-'}
            </p>
          </div>
        </div>
      </Card>
    </article>
  )
}