import { Button, Drawer, Skeleton, Tree, TreeProps, Typography } from 'antd'
import { DefaultValueType } from 'rc-tree-select/lib/interface'
import { useState, useEffect, ReactNode, useCallback, memo, Key } from 'react'
import { useNavigate, useLocation } from 'react-router-dom'

import { WellIcon, WellIconState } from '@components/icons'
import { invokeWebApiWrapperAsync } from '@components/factory'
import { DepositService, DepositDto, WellDto } from '@api'
import { isRawDate } from '@utils'

import { ReactComponent as DepositIcon } from '@images/DepositIcon.svg'
import { ReactComponent as ClusterIcon } from '@images/ClusterIcon.svg'

import '@styles/wellTreeSelect.css'

export const getWellState = (idState?: number): WellIconState => idState === 1 ? 'active' : 'unknown'
export const checkIsWellOnline = (lastTelemetryDate: unknown): boolean =>
    isRawDate(lastTelemetryDate) && (Date.now() - +new Date(lastTelemetryDate) < 600_000)

export type TreeNodeData = {
    title?: string | null
    key?: string
    value?: DefaultValueType
    icon?: ReactNode
    children?: TreeNodeData[]
}

const getKeyByUrl = (url?: string): [Key | null, string | null] => {
    const result = url?.match(/^\/([^\/]+)\/([^\/?]+)/) // pattern "/:type/:id"
    if (!result) return [null, null]
    return [result[0], result[1]]
}

const getLabel = (wellsTree: TreeNodeData[], value?: string): string | undefined => {
    const [url, type] = getKeyByUrl(value)
    if (!url) return
    let deposit: TreeNodeData | undefined
    let cluster: TreeNodeData | undefined
    let well: TreeNodeData | undefined
    switch (type) {
        case 'deposit':
            deposit = wellsTree.find((deposit) => deposit.key === url)
            if (deposit)
                return `${deposit.title}`
            return 'Ошибка! Месторождение не найдено!'

        case 'cluster':
            deposit = wellsTree.find((deposit) => (
                cluster = deposit.children?.find((cluster: TreeNodeData) => cluster.key === url)
            ))
            if (deposit && cluster)
                return `${deposit.title} / ${cluster.title}`
            return 'Ошибка! Куст не найден!'

        case 'well':
            deposit = wellsTree.find((deposit) => (
                cluster = deposit.children?.find((cluster: TreeNodeData) => (
                    well = cluster.children?.find((well: TreeNodeData) => well.key === url)
                ))
            ))
            if (deposit && cluster && well)
                return `${deposit.title} / ${cluster.title} / ${well.title}`
            return 'Ошибка! Скважина не найдена!'

        default: break
    }
}

const getWellSortScore = (well: WellDto) => {
    let out = [1, 2, 0][well.idState ?? 2]
    const timeout = Date.now() - +new Date(well.lastTelemetryDate || 0)
    if (timeout < 600_000) out += 600_000 - timeout
    return out
}

const sortWellsByActive = (a: WellDto, b: WellDto): number => {
    const score = getWellSortScore(b) - getWellSortScore(a)
    if (score !== 0) return score
    return (a.caption || '')?.localeCompare(b.caption || '')
}

export const WellTreeSelector = memo(({ show, ...other }: TreeProps<TreeNodeData> & { show?: boolean }) => {
    const [wellsTree, setWellsTree] = useState<TreeNodeData[]>([])
    const [showLoader, setShowLoader] = useState<boolean>(false)
    const [visible, setVisible] = useState<boolean>(false)
    const [expanded, setExpanded] = useState<Key[]>([])
    const [selected, setSelected] = useState<Key[]>([])
    const [value, setValue] = useState<string>()

    const navigate = useNavigate()
    const location = useLocation()

    useEffect(() => {
        setVisible((prev) => show ?? prev)
        setExpanded((prev) => {
            if (typeof show === 'undefined') return prev
            if (!show) return []
            const out: Key[] = []
            wellsTree.forEach((deposit) => {
                if (deposit.key) out.push(deposit.key)
                deposit.children?.forEach((cluster) => {
                    if (cluster.key) out.push(cluster.key)
                })
            })
            return out
        })
    }, [wellsTree, show])

    useEffect(() => {
        invokeWebApiWrapperAsync(
            async () => {
                const deposits: Array<DepositDto> = await DepositService.getDeposits()
                const wellsTree: TreeNodeData[] = deposits.map(deposit =>({
                    title: deposit.caption,
                    key: `/deposit/${deposit.id}`,
                    value: `/deposit/${deposit.id}`,
                    icon: <DepositIcon width={24} height={24}/>,
                    children: deposit.clusters?.map(cluster => {
                        const wells = cluster.wells ? cluster.wells.slice() : []
                        wells.sort(sortWellsByActive)

                        return {
                            title: cluster.caption,
                            key: `/cluster/${cluster.id}`,
                            value: `/cluster/${cluster.id}`,
                            icon: <ClusterIcon width={24} height={24}/>,
                            children: wells.map(well => ({
                                title: well.caption,
                                key: `/well/${well.id}`,
                                value: `/well/${well.id}`,
                                icon: <WellIcon
                                    width={24}
                                    height={24}
                                    state={getWellState(well.idState)}
                                    online={checkIsWellOnline(well.lastTelemetryDate)}
                                />
                            })),
                        }
                    }),
                }))
                setWellsTree(wellsTree)
            },
            setShowLoader,
            `Не удалось загрузить список скважин`,
            'Получить список скважин'
        )
    }, [])

    const onChange = useCallback((value?: string): void => {
        const key = getKeyByUrl(value)[0]
        setSelected(key ? [key] : [])
        setValue(getLabel(wellsTree, value))
    }, [wellsTree])

    const onSelect = useCallback((value: Key[]): void => {
        navigate(String(value), { state: { from: location.pathname }})
    }, [navigate, location])

    useEffect(() => onChange(location.pathname), [onChange, location])

    return (
        <>
            <Button loading={showLoader} onClick={() => setVisible(true)}>{value ?? 'Выберите месторождение'}</Button>
            <Drawer visible={visible} mask={false} onClose={() => setVisible(false)}>
                <Typography.Title level={3}>Список скважин</Typography.Title>
                <Skeleton active loading={showLoader}>
                    <Tree
                        {...other}
                        showIcon
                        selectedKeys={selected}
                        treeData={wellsTree}
                        onSelect={onSelect}
                        onExpand={setExpanded}
                        expandedKeys={expanded}
                    />
                </Skeleton>
            </Drawer>
        </>
    )
})

export default WellTreeSelector