import React, {useEffect, useState} from 'react'
import type { Statistics} from '../utils/api'
import {getStatistics} from '../utils/api'
import {Card, Col, Divider, Flex, Row, Statistic, Tooltip} from 'antd'
import {t} from 'ttag'
import {
  AimOutlined,
  CompassOutlined,
  DatabaseOutlined,
  FieldTimeOutlined,
  NotificationOutlined
} from '@ant-design/icons'

export default function StatisticsPage() {
    const [stats, setStats] = useState<Statistics>()

    useEffect(() => {
        getStatistics().then(setStats)
    }, [])

    const successRate = stats !== undefined
        ? (stats?.domainPurchased === 0 ? undefined : ((stats?.domainPurchased ?? 0) - (stats?.domainPurchaseFailed ?? 0)) /  stats?.domainPurchased)
        : undefined

    return (
        <>
            <Row gutter={16}>
                <Col span={12}>
                    <Card bordered={false}>
                        <Statistic
                            loading={stats === undefined}
                            prefix={<CompassOutlined/>}
                            title={t`RDAP queries`}
                            value={stats?.rdapQueries}
                        />
                    </Card>
                </Col>
                <Col span={12}>
                    <Card bordered={false}>
                        <Statistic
                            loading={stats === undefined}
                            title={t`Alerts sent`}
                            prefix={<NotificationOutlined/>}
                            value={stats?.alertSent}
                            valueStyle={{color: 'violet'}}
                        />
                    </Card>
                </Col>
            </Row>
            <Divider/>
            <Row gutter={16}>
                <Col span={12}>
                    <Card bordered={false}>
                        <Statistic
                            loading={stats === undefined}
                            title={t`Domain names in database`}
                            prefix={<DatabaseOutlined/>}
                            value={stats?.domainCountTotal}
                            valueStyle={{color: 'orange'}}
                        />
                    </Card>
                </Col>
                <Col span={12}>
                    <Card bordered={false}>
                        <Statistic
                            loading={stats === undefined}
                            title={t`Tracked domain names`}
                            prefix={<AimOutlined/>}
                            value={stats?.domainTracked}
                            valueStyle={{color: 'violet'}}
                        />
                    </Card>
                </Col>
            </Row>
            <Divider/>
            <Row gutter={16}>
                <Col span={12}>
                    <Card bordered={false}>
                        <Statistic
                            loading={stats === undefined}
                            title={t`Purchased domain names`}
                            prefix={<FieldTimeOutlined/>}
                            value={(stats?.domainPurchased??0) - (stats?.domainPurchaseFailed??0)}
                            valueStyle={{color: 'green'}}
                        />
                    </Card>
                </Col>
                <Col span={12}>
                    <Card bordered={false}>
                        <Tooltip
                            title={t`This value is based on the status code of the HTTP response from the providers following the domain order.`}
                        >
                            <Statistic
                                loading={stats === undefined}
                                title={t`Success rate`}
                                value={successRate === undefined ? '-' : (successRate * 100).toFixed(2)}
                                suffix='%'
                                valueStyle={{color: successRate === undefined ? 'grey' : successRate >= 0.5 ? 'darkgreen' : 'orange'}}
                            />
                        </Tooltip>
                    </Card>
                </Col>
            </Row>
            <Divider/>
            <Flex gap={16} wrap justify='center' align='middle'>
                {stats?.domainCount
                    .sort((a, b) => b.domain - a.domain)
                    .map(({domain, tld}) =>
                        <Card key={tld} bordered={false}>
                            <Statistic
                                loading={stats === undefined}
                                title={tld ? tld : t`TLD`}
                                value={domain}
                                valueStyle={{color: 'darkorange'}}
                            />
                        </Card>)}
            </Flex>
        </>
    )
}
