import { useVirtualizer } from '@tanstack/react-virtual'
import { motion } from 'motion/react'
import { useEffect, useRef } from 'react'

import { DataLoadingIndicator } from '@/components/ui/data-loading-indicator'
import { useFinanceRecordsVm } from '@/hooks/use-finance-records-vm'
import { cn } from '@/lib/utils'

function maskOrderNo(value: string) {
  const text = value.trim()

  if (text.length <= 12) {
    return text
  }

  return `${text.slice(0, 6)}**${text.slice(-4)}`
}

function MobileFinanceRecordsTab({ enabled }: { enabled: boolean }) {
  const vm = useFinanceRecordsVm({ enabled })
  const parentRef = useRef<HTMLDivElement | null>(null)
  const rowVirtualizer = useVirtualizer({
    count: vm.items.length + (vm.hasNextPage ? 1 : 0),
    estimateSize: () => 52,
    getScrollElement: () => parentRef.current,
    overscan: 6,
  })
  const virtualItems = rowVirtualizer.getVirtualItems()

  useEffect(() => {
    const lastItem = virtualItems.at(-1)

    if (
      !lastItem ||
      lastItem.index < vm.items.length - 1 ||
      !vm.hasNextPage ||
      vm.isFetchingNextPage
    ) {
      return
    }

    void vm.fetchNextPage()
  }, [
    virtualItems,
    vm.fetchNextPage,
    vm.hasNextPage,
    vm.isFetchingNextPage,
    vm.items.length,
  ])

  return (
    <div className="flex h-full min-h-0 w-full flex-col p-design-4">
      <div className="mb-design-8 flex shrink-0 items-center justify-between gap-design-8 rounded-md border border-[#3EAFC7]/40 bg-[#062E39]/80 px-design-8 py-design-7">
        <div className="relative grid min-w-0 grid-cols-2 overflow-hidden rounded-md border border-[#3EAFC7]/30 bg-[#031B24]/75 p-design-3">
          {vm.recordTypes.map((recordType) => {
            const isActive = recordType.key === vm.recordType

            return (
              <button
                key={recordType.key}
                type="button"
                aria-pressed={isActive}
                onClick={() => {
                  vm.selectRecordType(recordType.key)
                  rowVirtualizer.scrollToOffset(0)
                }}
                className={cn(
                  'relative h-design-24 min-w-design-82 cursor-pointer rounded-md px-design-8 text-design-12 transition-colors duration-200',
                  isActive
                    ? 'text-white'
                    : 'text-[#6CCDCF] hover:bg-[#0A4252] hover:text-white',
                )}
              >
                {isActive ? (
                  <motion.span
                    layoutId="finance-record-type-active"
                    className={
                      'absolute inset-0 rounded-md bg-[linear-gradient(180deg,#3DA5BD,#166477)] shadow-[0_0_calc(var(--design-unit)*10)_rgba(62,175,199,0.26)]'
                    }
                    transition={{
                      type: 'spring',
                      stiffness: 420,
                      damping: 34,
                    }}
                  />
                ) : null}
                <span className="relative z-10 text-design-10">
                  {recordType.label}
                </span>
              </button>
            )
          })}
        </div>

        <div className="shrink-0 text-design-11 text-[#7ECAD1]">
          {vm.pageLabel}
        </div>
      </div>

      <div className="min-h-0 flex-1 overflow-x-auto rounded-md">
        <div className="min-w-design-410">
          <div className="grid grid-cols-[minmax(0,1.45fr)_minmax(0,0.75fr)_minmax(0,0.75fr)_minmax(0,0.72fr)] gap-design-6 rounded-md border border-[#2B8CA3]/35 bg-[#031B24]/75 px-design-10 py-design-8 text-design-12 text-[#7ECAD1]">
            <div>{vm.headers.orderNo}</div>
            <div>{vm.headers.amount}</div>
            <div>{vm.headers.bonusAmount}</div>
            <div>{vm.headers.status}</div>
          </div>

          <div
            ref={parentRef}
            className="mt-design-7 max-h-[calc(var(--design-unit)*340)] min-h-0 overflow-y-auto pr-design-2"
          >
            {vm.isLoading ? (
              <DataLoadingIndicator label={vm.loadingText} />
            ) : vm.isError ? (
              <div className="py-design-24 text-center text-design-12 text-[#6CCDCF]">
                {vm.loadFailedText}
              </div>
            ) : vm.items.length === 0 ? (
              <div className="py-design-24 text-center text-design-12 text-[#6CCDCF]">
                {vm.emptyText}
              </div>
            ) : (
              <div
                className="relative w-full"
                style={{ height: `${rowVirtualizer.getTotalSize()}px` }}
              >
                {virtualItems.map((virtualRow) => {
                  const item = vm.items[virtualRow.index]

                  return (
                    <div
                      key={virtualRow.key}
                      className="absolute left-0 top-0 w-full pb-design-7"
                      style={{
                        height: `${virtualRow.size}px`,
                        transform: `translateY(${virtualRow.start}px)`,
                      }}
                    >
                      {item ? (
                        <motion.div
                          className="grid h-design-45 grid-cols-[minmax(0,1.45fr)_minmax(0,0.75fr)_minmax(0,0.75fr)_minmax(0,0.72fr)] items-center gap-design-6 rounded-md bg-[#0A4252] px-design-10 py-design-8 text-design-12 text-[#C4F2F7] shadow-[inset_0_0_calc(var(--design-unit)*10)_rgba(108,205,207,0.05)]"
                          initial={{ opacity: 0, y: 6 }}
                          animate={{ opacity: 1, y: 0 }}
                          transition={{
                            duration: 0.16,
                            ease: 'easeOut',
                          }}
                        >
                          <div
                            className="truncate font-medium text-white"
                            title={item.orderNoLabel}
                          >
                            {maskOrderNo(item.orderNoLabel)}
                          </div>
                          <div className="truncate text-[#FEEEB0]">
                            {item.amountLabel}
                          </div>
                          <div className="truncate text-[#7CFFCF]">
                            {item.bonusAmountLabel}
                          </div>
                          <div>
                            <span
                              className={cn(
                                'inline-flex max-w-full items-center rounded-full border px-design-5 py-design-2 text-design-9 font-medium',
                                item.statusTone === 'approved'
                                  ? 'border-[#5BEA99]/35 bg-[#0F593A]/55 text-[#7CFFCF]'
                                  : item.statusTone === 'rejected'
                                    ? 'border-[#F47C7C]/35 bg-[#5D1E24]/55 text-[#FF9C9C]'
                                    : 'border-[#F0B44A]/35 bg-[#5D441E]/55 text-[#FFD583]',
                              )}
                            >
                              <span className="truncate">
                                {item.statusLabel}
                              </span>
                            </span>
                          </div>
                        </motion.div>
                      ) : (
                        <DataLoadingIndicator
                          compact
                          label={vm.loadingText}
                          className="h-design-45 rounded-md bg-[#0A4252]/60"
                        />
                      )}
                    </div>
                  )
                })}
              </div>
            )}
          </div>
        </div>
      </div>
    </div>
  )
}

export default MobileFinanceRecordsTab