import { Flex, Skeleton, Image, Alert } from '@chakra-ui/react';
import React, { useEffect, useState } from 'react';

import config from 'configs/app';
import { useRewardsContext } from 'lib/contexts/rewards';
import { apos } from 'lib/html-entities';
import DailyRewardClaimButton from 'ui/rewards/dashboard/DailyRewardClaimButton';
import RewardsDashboardCard from 'ui/rewards/dashboard/RewardsDashboardCard';
import RewardsDashboardCardValue from 'ui/rewards/dashboard/RewardsDashboardCardValue';
import RewardsReadOnlyInputWithCopy from 'ui/rewards/RewardsReadOnlyInputWithCopy';
import LinkExternal from 'ui/shared/links/LinkExternal';
import PageTitle from 'ui/shared/Page/PageTitle';
import useRedirectForInvalidAuthToken from 'ui/snippets/auth/useRedirectForInvalidAuthToken';

const RewardsDashboard = () => {
  const { balancesQuery, apiToken, referralsQuery, rewardsConfigQuery, dailyRewardQuery, isInitialized } = useRewardsContext();

  const [ isError, setIsError ] = useState(false);

  useRedirectForInvalidAuthToken();

  useEffect(() => {
    if (!config.features.rewards.isEnabled || (isInitialized && !apiToken)) {
      window.location.assign('/');
    }
  }, [ isInitialized, apiToken ]);

  useEffect(() => {
    setIsError(balancesQuery.isError || referralsQuery.isError || rewardsConfigQuery.isError || dailyRewardQuery.isError);
  }, [ balancesQuery.isError, referralsQuery.isError, rewardsConfigQuery.isError, dailyRewardQuery.isError ]);

  if (!config.features.rewards.isEnabled) {
    return null;
  }

  let shareText = `Claim your free @blockscoutcom #Merits and start building your daily streak today! #Blockscout #Merits #IYKYK\n\nBoost your rewards instantly by using my referral code: ${ referralsQuery.data?.link }`; // eslint-disable-line max-len

  if (dailyRewardQuery.data?.streak && Number(dailyRewardQuery.data.streak) > 0) {
    const days = `day${ Number(dailyRewardQuery.data.streak) === 1 ? '' : 's' }`;
    shareText = `I${ apos }ve claimed Merits ${ dailyRewardQuery.data.streak } ${ days } in a row!\n\n` + shareText;
  }

  return (
    <>
      <PageTitle
        title="Dashboard"
        secondRow={ (
          <span>
            The Blockscout Merits Program is just getting started! Learn more about the details,
            features, and future plans in our{ ' ' }
            <LinkExternal href="https://www.blog.blockscout.com/blockscout-merits-rewarding-block-explorer-skills">
              blog post
            </LinkExternal>.
          </span>
        ) }
      />
      <Flex flexDirection="column" alignItems="flex-start" w="full" gap={ 6 }>
        { isError && <Alert status="error">Failed to load some data. Please try again later.</Alert> }
        <Flex gap={ 6 } flexDirection={{ base: 'column', md: 'row' }} w="full">
          <RewardsDashboardCard
            title="All Merits"
            description="Claim your daily Merits and any Merits received from referrals."
            direction="column-reverse"
            contentAfter={ <DailyRewardClaimButton/> }
          >
            <RewardsDashboardCardValue
              label="Total balance"
              value={ balancesQuery.data?.total || 'N/A' }
              isLoading={ balancesQuery.isPending }
              withIcon
              hint={ (
                <>
                  Total number of Merits earned from all activities.{ ' ' }
                  <LinkExternal href="https://docs.blockscout.com/using-blockscout/merits">
                    More info on Merits
                  </LinkExternal>
                </>
              ) }
            />
          </RewardsDashboardCard>
          <RewardsDashboardCard
            title="Referrals"
            description="Total number of users who have joined the program using your code or referral link."
            direction="column-reverse"
          >
            <RewardsDashboardCardValue
              label="Referrals"
              value={ referralsQuery.data?.referrals ?
                `${ referralsQuery.data?.referrals } user${ Number(referralsQuery.data?.referrals) === 1 ? '' : 's' }` :
                'N/A'
              }
              isLoading={ referralsQuery.isPending }
            />
          </RewardsDashboardCard>
          <RewardsDashboardCard
            title="Streak"
            description={ (
              <>
                Current number of consecutive days you{ apos }ve claimed your daily Merits.{ ' ' }
                The longer your streak, the more daily Merits you can earn.{ ' ' }
                <LinkExternal
                  href={ `https://x.com/intent/tweet?text=${ encodeURIComponent(shareText) }` }
                  fontWeight="500"
                >
                  Share on X
                </LinkExternal>
              </>
            ) }
            direction="column-reverse"
          >
            <RewardsDashboardCardValue
              label="Streak"
              value={
                dailyRewardQuery.data?.streak ?
                  `${ dailyRewardQuery.data?.streak } day${ Number(dailyRewardQuery.data?.streak) === 1 ? '' : 's' }` :
                  'N/A'
              }
              isLoading={ dailyRewardQuery.isPending }
              hint={ (
                <>
                  See the{ ' ' }
                  <LinkExternal
                    href="https://docs.blockscout.com/using-blockscout/merits/streak-number-and-daily-rewards"
                    isExternal
                  >
                    docs
                  </LinkExternal>{ ' ' }
                  to learn how your streak number affects daily rewards
                </>
              ) }
            />
          </RewardsDashboardCard>
        </Flex>
        <Flex gap={ 6 } flexDirection={{ base: 'column', md: 'row' }}>
          <RewardsDashboardCard
            title="Referral program"
            description={ (
              <>
                Refer friends and boost your Merits! You receive a{ ' ' }
                <Skeleton as="span" isLoaded={ !rewardsConfigQuery.isPending }>
                  { rewardsConfigQuery.data?.rewards.referral_share ?
                    `${ Number(rewardsConfigQuery.data?.rewards.referral_share) * 100 }%` :
                    'N/A'
                  }
                </Skeleton>
                { ' ' }bonus on all Merits earned by your referrals.
              </>
            ) }
          >
            <Flex
              flex={ 1 }
              gap={{ base: 2, lg: 6 }}
              px={{ base: 4, lg: 6 }}
              py={{ base: 4, lg: 0 }}
              flexDirection={{ base: 'column', lg: 'row' }}
            >
              <RewardsReadOnlyInputWithCopy
                label="Referral link"
                value={ referralsQuery.data?.link || 'N/A' }
                isLoading={ referralsQuery.isPending }
                flex={ 2 }
              />
              <RewardsReadOnlyInputWithCopy
                label="Referral code"
                value={ referralsQuery.data?.code || 'N/A' }
                isLoading={ referralsQuery.isPending }
                flex={ 1 }
              />
            </Flex>
          </RewardsDashboardCard>
          <RewardsDashboardCard
            title="Badges"
            description={ (
              <Flex flexDir="column" gap={ 2 }>
                <span>
                  Collect limited and legendary badges by completing different Blockscout related tasks.
                  Go to the badges website to see what{ apos }s available and start your collection today.
                </span>
              </Flex>
            ) }
          >
            <Flex
              flex={ 1 }
              gap={ 4 }
              pl={ 10 }
              pr={ 7 }
              py={{ base: 4, lg: 0 }}
              flexDirection={{ base: 'column', lg: 'row' }}
              justifyContent="space-between"
              alignItems="center"
            >
              <Image
                src="/static/badges.svg"
                alt="Badges"
                w="260px"
                h="86px"
                fallback={ <Skeleton w="260px" h="86px"/> }
              />
              <LinkExternal
                href="https://merits.blockscout.com/?tab=badges&utm_source=blockscout&utm_medium=dashboard"
                fontSize="md"
                fontWeight="500"
              >
                View badges
              </LinkExternal>
            </Flex>
          </RewardsDashboardCard>
        </Flex>
        <Flex gap={ 6 } flexDirection={{ base: 'column', md: 'row' }}>
          <RewardsDashboardCard
            title="Activity"
            description="Earn Merits for your everyday Blockscout activities. You deserve to be rewarded for choosing open-source public goods!"
            availableSoon
            blurFilter
          >
            <RewardsDashboardCardValue label="Activity" value="0%"/>
            <RewardsDashboardCardValue label="Received" value="0" withIcon/>
          </RewardsDashboardCard>
          <RewardsDashboardCard
            title="Verify contracts"
            description="Verified contracts are so important for transparency and interaction. Verify your contracts on Blockscout and receive Merits for your efforts." // eslint-disable-line max-len
            availableSoon
            blurFilter
          >
            <RewardsDashboardCardValue label="Activity" value="0%"/>
            <RewardsDashboardCardValue label="Received" value="0" withIcon/>
          </RewardsDashboardCard>
        </Flex>
      </Flex>
    </>
  );
};

export default RewardsDashboard;
