import React from 'react'
import { AnimatePresence, motion, useReducedMotion } from 'framer-motion'

export default function UploadProgress({
  title = 'Upload Artwork',
  description = 'Preload → Details → Publish',
  progress = 24,
  status = 'Idle',
  state,
  processingStatus,
  processingLabel = '',
  isCancelling = false,
  error = '',
  onRetry,
  onReset,
}) {
  const prefersReducedMotion = useReducedMotion()

  const getRecoveryHint = () => {
    const text = String(error || '').toLowerCase()
    if (!text) return ''
    if (text.includes('network') || text.includes('timeout') || text.includes('failed to fetch')) {
      return 'Your connection may be unstable. Retry now or wait a moment and try again.'
    }
    if (text.includes('busy') || text.includes('unavailable') || text.includes('503') || text.includes('server')) {
      return 'The server looks busy right now. Waiting 20–30 seconds before retrying can help.'
    }
    if (text.includes('validation') || text.includes('invalid') || text.includes('too large') || text.includes('format')) {
      return 'Please review the file requirements, then update your selection and try again.'
    }
    return 'You can retry now, or reset this upload and start again with the same files.'
  }

  const recoveryHint = getRecoveryHint()

  const resolvedStatus = (() => {
    if (isCancelling) return 'Processing'
    if (state === 'error') return 'Error'
    if (processingStatus === 'ready') return 'Ready'
    if (state === 'uploading') return 'Uploading'
    if (state === 'processing' || state === 'finishing' || state === 'publishing') return 'Processing'
    if (status) return status
    return 'Idle'
  })()

  const statusTheme = {
    Idle: 'border-slate-400/35 bg-slate-400/15 text-slate-200',
    Uploading: 'border-sky-400/35 bg-sky-400/15 text-sky-100',
    Processing: 'border-amber-400/35 bg-amber-400/15 text-amber-100',
    Ready: 'border-emerald-400/35 bg-emerald-400/15 text-emerald-100',
    Error: 'border-red-400/35 bg-red-400/15 text-red-100',
  }

  const quickTransition = prefersReducedMotion
    ? { duration: 0 }
    : { duration: 0.2, ease: 'easeOut' }

  const stepLabels = ['Preload', 'Details', 'Publish']
  const stepIndex = progress >= 100 ? 2 : progress >= 34 ? 1 : 0
  const progressValue = Math.max(0, Math.min(100, Number(progress) || 0))

  return (
    <header className="rounded-xl ring-1 ring-white/10 bg-gradient-to-br from-slate-900/80 to-slate-900/50 p-5 shadow-[0_12px_40px_rgba(0,0,0,0.35)] sm:p-6">
      {/* Intended props: step, steps, phase, badge, progress, statusMessage */}
      <div className="flex flex-wrap items-center justify-between gap-3">
        <div>
          <h1 className="text-2xl font-semibold tracking-tight text-white sm:text-3xl">{title}</h1>
          <p className="mt-1 text-sm text-white/65">{description}</p>
        </div>

        <span
          className={`inline-flex items-center rounded-full border px-3 py-1 text-xs font-medium ${statusTheme[resolvedStatus] || statusTheme.Idle}`}
        >
          {resolvedStatus}
        </span>
      </div>

      <div className="mt-4 flex items-center gap-2 overflow-x-auto">
        {stepLabels.map((label, idx) => {
          const active = idx <= stepIndex
          return (
            <div key={label} className="flex items-center gap-2">
              <span className={`rounded-full border px-3 py-1 text-xs ${active ? 'border-emerald-400/40 bg-emerald-400/20 text-emerald-100' : 'border-white/15 bg-white/5 text-white/55'}`}>
                {label}
              </span>
              {idx < stepLabels.length - 1 && <span className="text-white/30">→</span>}
            </div>
          )
        })}
      </div>

      <div className="mt-4">
        <div className="h-2 overflow-hidden rounded-full bg-white/10">
          <motion.div
            className="h-full origin-left rounded-full bg-gradient-to-r from-sky-400/90 via-cyan-300/90 to-emerald-300/90"
            initial={false}
            animate={{ scaleX: progressValue / 100 }}
            transition={quickTransition}
          />
        </div>
        <p className="mt-2 text-right text-xs text-white/55">{Math.round(progressValue)}%</p>
      </div>

      <AnimatePresence initial={false}>
        {(state === 'processing' || state === 'finishing' || state === 'publishing' || isCancelling) && (
          <motion.div
            key="processing-note"
            initial={prefersReducedMotion ? false : { opacity: 0, y: 4 }}
            animate={prefersReducedMotion ? {} : { opacity: 1, y: 0 }}
            exit={prefersReducedMotion ? {} : { opacity: 0, y: -4 }}
            transition={quickTransition}
            className="mt-3 rounded-lg border border-cyan-300/25 bg-cyan-500/10 px-3 py-2 text-xs text-cyan-100"
          >
            {processingLabel || 'Analyzing content'} — you can continue editing details while processing finishes.
          </motion.div>
        )}
      </AnimatePresence>

      <AnimatePresence initial={false}>
        {error && (
          <motion.div
            key="progress-error"
            initial={prefersReducedMotion ? false : { opacity: 0, y: 4 }}
            animate={prefersReducedMotion ? {} : { opacity: 1, y: 0 }}
            exit={prefersReducedMotion ? {} : { opacity: 0, y: -4 }}
            transition={quickTransition}
            className="mt-3 rounded-lg border border-rose-200/25 bg-rose-400/8 px-3 py-2"
          >
            <p className="text-sm font-medium text-rose-100">Something went wrong while uploading.</p>
            <p className="mt-1 text-xs text-rose-100/90">You can retry safely. {error}</p>
            {recoveryHint && <p className="mt-1 text-xs text-rose-100/80">{recoveryHint}</p>}
            <div className="mt-2 flex flex-wrap gap-2">
              <button type="button" onClick={onRetry} className="rounded-md border border-rose-200/35 bg-rose-400/10 px-2.5 py-1 text-xs text-rose-100 transition hover:bg-rose-400/15 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-rose-200/75">Retry</button>
              <button type="button" onClick={onReset} className="rounded-md border border-white/25 bg-white/10 px-2.5 py-1 text-xs text-white transition hover:bg-white/20 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-white/60">Reset</button>
            </div>
          </motion.div>
        )}
      </AnimatePresence>
    </header>
  )
}
