import React, { useEffect, useState } from 'react'

export default function UploadActions({
  step = 1,
  canStart = false,
  canContinue = false,
  canPublish = false,
  canGoBack = false,
  canReset = true,
  canCancel = false,
  canRetry = false,
  isUploading = false,
  isProcessing = false,
  isPublishing = false,
  isCancelling = false,
  disableReason = 'Complete required fields',
  onStart,
  onContinue,
  onPublish,
  onBack,
  onCancel,
  onReset,
  onRetry,
  onSaveDraft,
  showSaveDraft = false,
  mobileSticky = true,
  resetLabel = 'Reset',
}) {
  const [confirmCancel, setConfirmCancel] = useState(false)

  useEffect(() => {
    if (!confirmCancel) return
    const timer = window.setTimeout(() => setConfirmCancel(false), 3200)
    return () => window.clearTimeout(timer)
  }, [confirmCancel])

  const handleCancel = () => {
    if (!canCancel || isCancelling) return
    if (!confirmCancel) {
      setConfirmCancel(true)
      return
    }
    setConfirmCancel(false)
    onCancel?.()
  }

  const renderPrimary = () => {
    if (step === 1) {
      const disabled = !canStart || isUploading || isProcessing || isCancelling
      const label = isUploading ? 'Uploading…' : isProcessing ? 'Processing…' : 'Start upload'
      return (
        <button
          type="button"
          disabled={disabled}
          title={disabled ? disableReason : 'Start upload'}
          onClick={() => onStart?.()}
          className={`rounded-lg px-5 py-2.5 text-sm font-semibold transition focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-emerald-300/75 ${disabled ? 'cursor-not-allowed bg-emerald-700/55 text-white/75' : 'bg-emerald-500 text-white hover:bg-emerald-400 shadow-[0_10px_28px_rgba(16,185,129,0.32)] ring-1 ring-emerald-200/40'}`}
        >
          {label}
        </button>
      )
    }

    if (step === 2) {
      const disabled = !canContinue
      return (
        <button
          type="button"
          disabled={disabled}
          title={disabled ? disableReason : 'Continue to Publish'}
          onClick={() => onContinue?.()}
          className={`rounded-lg px-4 py-2 text-sm font-semibold transition focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-sky-300/75 ${disabled ? 'cursor-not-allowed bg-sky-700/45 text-sky-100/75' : 'bg-sky-400 text-slate-950 hover:bg-sky-300 shadow-[0_10px_28px_rgba(56,189,248,0.28)] ring-1 ring-sky-100/45'}`}
        >
          Continue to Publish
        </button>
      )
    }

    const disabled = !canPublish || isPublishing
    return (
      <button
        type="button"
        disabled={disabled}
        title={disabled ? disableReason : 'Publish artwork'}
        onClick={() => onPublish?.()}
        className={`rounded-lg px-4 py-2 text-sm font-semibold transition focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-emerald-300/75 ${disabled ? 'cursor-not-allowed bg-emerald-700/45 text-emerald-100/75' : 'bg-emerald-400 text-slate-950 shadow-[0_0_0_1px_rgba(167,243,208,0.85),0_0_24px_rgba(52,211,153,0.45)] hover:bg-emerald-300'}`}
      >
        {isPublishing ? 'Publishing…' : 'Publish'}
      </button>
    )
  }

  return (
    <footer data-testid="wizard-action-bar" className={`${mobileSticky ? 'sticky bottom-0 z-20' : ''} rounded-xl border border-white/10 bg-slate-950/80 p-3 shadow-[0_-12px_32px_rgba(2,8,23,0.65)] backdrop-blur sm:p-4 lg:static lg:shadow-none`}>
      <div className="flex flex-wrap items-center justify-end gap-2.5">
        {canGoBack && (
          <button
            type="button"
            onClick={() => onBack?.()}
            className="rounded-lg border border-white/30 bg-white/10 px-3.5 py-2 text-sm font-medium text-white transition hover:bg-white/20 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-white/70"
          >
            Back
          </button>
        )}

        {showSaveDraft && (
          <button
            type="button"
            onClick={() => onSaveDraft?.()}
            className="rounded-lg border border-purple-300/45 bg-purple-500/20 px-3.5 py-2 text-sm font-medium text-purple-50 transition hover:bg-purple-500/30 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-purple-300/70"
          >
            Save draft
          </button>
        )}

        {step === 1 && canCancel && (
          <button
            type="button"
            onClick={handleCancel}
            disabled={isCancelling}
            title={confirmCancel ? 'Click again to confirm cancel' : 'Cancel current upload'}
            className="rounded-lg border border-amber-300/45 bg-amber-500/20 px-3.5 py-2 text-sm font-medium text-amber-50 transition hover:bg-amber-500/30 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-amber-300/75 disabled:cursor-not-allowed disabled:opacity-60"
          >
            {isCancelling ? 'Cancelling…' : confirmCancel ? 'Cancel upload?' : 'Cancel'}
          </button>
        )}

        {canRetry && (
          <button
            type="button"
            onClick={() => onRetry?.()}
            className="rounded-lg border border-amber-300/45 bg-amber-500/20 px-3.5 py-2 text-sm font-medium text-amber-50 transition hover:bg-amber-500/30 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-amber-300/75"
          >
            Retry
          </button>
        )}

        {canReset && (
          <button
            type="button"
            onClick={() => onReset?.()}
            className="rounded-lg border border-white/30 bg-white/10 px-3.5 py-2 text-sm font-medium text-white transition hover:bg-white/20 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-white/70"
          >
            {resetLabel}
          </button>
        )}

        {renderPrimary()}
      </div>
    </footer>
  )
}