'use client'

import { Skeleton as HeroSkeleton } from '@heroui/react'
import clsx from 'clsx'

import { texts } from '@/texts'

interface SkeletonProps {
  className?: string
}

export const Skeleton = ({ className }: SkeletonProps) => (
  <HeroSkeleton
    aria-hidden
    className={clsx('block rounded-consumer-control bg-consumer-surface-muted motion-reduce:animate-none', className)}
  />
)

export const ListSkeleton = ({ count = 4, className }: { count?: number; className?: string }) => (
  <div
    aria-busy="true"
    aria-label={texts.common.loadingList}
    className={clsx('flex flex-col gap-3', className ?? 'p-4')}
    role="status"
  >
    {Array.from({ length: count }).map((_, index) => (
      <div
        key={index}
        className="flex items-center gap-4 rounded-consumer-card border border-consumer-border bg-consumer-surface p-4"
      >
        <Skeleton className="size-12 shrink-0 rounded-2xl" />
        <div className="flex flex-1 flex-col gap-2">
          <Skeleton className="h-4 w-2/5" />
          <Skeleton className="h-3 w-3/4" />
        </div>
        <Skeleton className="h-6 w-16 rounded-full" />
      </div>
    ))}
  </div>
)

export const DetailSkeleton = () => (
  <div
    aria-busy="true"
    aria-label={texts.common.loadingDetails}
    className="flex flex-col gap-4 p-4"
    role="status"
  >
    <Skeleton className="aspect-[3/4] w-full rounded-consumer-modal" />
    <div className="rounded-consumer-modal bg-consumer-surface p-4">
      <Skeleton className="h-7 w-1/2" />
      <Skeleton className="mt-4 h-4 w-full" />
      <Skeleton className="mt-2 h-4 w-4/5" />
      <div className="mt-6 grid grid-cols-2 gap-3">
        <Skeleton className="h-20" />
        <Skeleton className="h-20" />
      </div>
    </div>
  </div>
)

const TABLE_SKELETON_CELL_WIDTHS = ['w-28', 'w-40', 'w-24', 'w-32', 'w-20', 'w-36'] as const

interface TableSkeletonProps {
  columnCount?: number
  rows?: number
  showHeader?: boolean
}

export const TableSkeleton = ({ columnCount = 4, rows = 7, showHeader = true }: TableSkeletonProps) => {
  const cellCount = Math.max(1, columnCount)

  return (
    <div
      aria-busy="true"
      aria-label={texts.common.loadingTable}
      className="w-full overflow-hidden bg-surface"
      role="status"
    >
      {showHeader ? (
        <div className="flex gap-6 border-b border-border bg-surface-secondary p-4">
          {Array.from({ length: cellCount }).map((_, index) => (
            <Skeleton
              key={index}
              className={`h-4 ${TABLE_SKELETON_CELL_WIDTHS[index % TABLE_SKELETON_CELL_WIDTHS.length]}`}
            />
          ))}
        </div>
      ) : null}
      {Array.from({ length: rows }).map((_, rowIndex) => (
        <div
          key={rowIndex}
          className="flex items-center gap-6 border-b border-separator px-4 py-3 last:border-0"
        >
          {Array.from({ length: cellCount }).map((_, cellIndex) => (
            <Skeleton
              key={cellIndex}
              className="h-4 min-w-0 flex-1"
            />
          ))}
        </div>
      ))}
    </div>
  )
}

/** Consumer route fallback with stable page chrome; intentionally contains no spinner. */
export const ConsumerRouteSkeleton = ({ className }: { className?: string }) => (
  <section className={clsx('flex min-h-full flex-col bg-consumer-canvas', className)}>
    <div
      aria-busy="true"
      aria-label={texts.common.preparingPanel}
      className="flex min-h-full flex-col"
      role="status"
    >
      <header
        aria-hidden
        className="consumer-deep-header flex min-h-[72px] items-center gap-3 px-4 py-3"
      >
        <Skeleton className="size-11 shrink-0 rounded-consumer-control" />
        <Skeleton className="h-5 w-36 max-w-[60%]" />
      </header>
      <div
        aria-hidden
        className="consumer-page-container flex flex-col gap-4 py-4"
      >
        <div className="rounded-consumer-modal bg-consumer-surface p-4">
          <Skeleton className="h-6 w-2/5" />
          <Skeleton className="mt-4 h-4 w-full" />
          <Skeleton className="mt-2 h-4 w-4/5" />
        </div>
        <div className="rounded-consumer-modal bg-consumer-surface p-4">
          <Skeleton className="h-5 w-1/3" />
          <div className="mt-4 flex flex-col gap-3">
            {Array.from({ length: 4 }).map((_, index) => (
              <div
                key={index}
                className="flex items-center gap-3"
              >
                <Skeleton className="size-10 shrink-0 rounded-2xl" />
                <div className="flex flex-1 flex-col gap-2">
                  <Skeleton className="h-4 w-2/5" />
                  <Skeleton className="h-3 w-3/4" />
                </div>
              </div>
            ))}
          </div>
        </div>
      </div>
    </div>
  </section>
)

export const PageLoading = ({ label = texts.common.preparingPage }: { label?: string }) => (
  <div
    aria-busy="true"
    aria-live="polite"
    className="flex min-h-full w-full items-center justify-center bg-consumer-canvas px-4 py-16"
    role="status"
  >
    <div className="flex flex-col items-center gap-5">
      <div className="relative flex size-16 items-center justify-center rounded-consumer-surface bg-primary">
        <span className="absolute inset-0 animate-ping rounded-consumer-surface bg-primary/20 motion-reduce:animate-none" />
        <span className="relative size-5 animate-spin rounded-full border-2 border-white/40 border-t-white motion-reduce:animate-none" />
      </div>
      <div className="text-center">
        <p className="text-sm font-bold text-secondary-20">{label}</p>
        <p className="mt-1 text-xs text-secondary-30">{texts.common.pleaseWait}</p>
      </div>
    </div>
  </div>
)