'use client'

type MaterialDetailAction =
  | 'favorite'
  | 'share'
  | 'edit'
  | 'delete'
  | null

export type MaterialDetailCapabilities = {
  canFavorite: boolean
  canEdit: boolean
  canDelete: boolean
}

type MaterialDetailHeaderProps = {
  title: string
  materialType: string
  materialId: string
  isFavorited: boolean
  capabilities: MaterialDetailCapabilities
  busyAction?: MaterialDetailAction
  onBack: () => void
  onFavorite: () => void
  onShare: () => void
  onEdit: () => void
  onDelete: () => void
}

type ActionButtonProps = {
  label: string
  title?: string
  danger?: boolean
  pressed?: boolean
  disabled?: boolean
  onClick: () => void
  children: React.ReactNode
}

function ActionButton({
  label,
  title = label,
  danger = false,
  pressed,
  disabled = false,
  onClick,
  children,
}: ActionButtonProps) {
  return (
    <button
      type="button"
      onClick={onClick}
      disabled={disabled}
      aria-label={title}
      aria-pressed={pressed}
      className={`inline-flex min-h-11 items-center justify-center gap-2 whitespace-nowrap rounded-[8px] border px-3 text-[13px] font-medium tracking-[-0.02em] transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#1a1c1d]/70 focus-visible:ring-offset-2 disabled:cursor-wait disabled:opacity-50 ${
        danger
          ? 'border-[#e7e8ea] text-[#b42318] hover:bg-[#fafafa]'
          : pressed
            ? 'border-[#1a1c1d] bg-[#1a1c1d] text-white hover:bg-[#2a2d2f]'
            : 'border-[#e7e8ea] bg-white text-[#1a1c1d] hover:border-[#1a1c1d]'
      }`}
    >
      {children}
      <span>{label}</span>
    </button>
  )
}

export default function MaterialDetailHeader({
  title,
  materialType,
  materialId,
  isFavorited,
  capabilities,
  busyAction = null,
  onBack,
  onFavorite,
  onShare,
  onEdit,
  onDelete,
}: MaterialDetailHeaderProps) {
  const controlsDisabled = busyAction !== null

  return (
    <section
      aria-label="素材详情操作"
      className="mx-auto mb-6 max-w-[1280px] border-b border-[#e7e8ea] px-0 pb-5"
    >
      <div className="flex flex-col gap-3 lg:flex-row lg:items-center">
        <div className="flex min-w-0 flex-1 items-center gap-3">
          <button
            type="button"
            onClick={onBack}
            aria-label="返回上一页"
            className="inline-flex h-11 w-11 flex-none items-center justify-center rounded-[8px] border border-[#e7e8ea] text-[#1a1c1d] transition-colors hover:bg-white focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#1a1c1d]/70 focus-visible:ring-offset-2"
          >
            <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
            </svg>
          </button>

          <div className="min-w-0">
            <h1 className="truncate text-[20px] font-semibold tracking-[-0.03em] text-[#1a1c1d] sm:text-[22px]" title={title}>
              {title}
            </h1>
            <p className="mt-1 flex min-w-0 items-center gap-2 text-[12px] text-[#86898e]">
              <span className="flex-none">{materialType}</span>
              <span aria-hidden="true">·</span>
              <span className="truncate font-en tabular-nums tracking-[0.04em]" title={materialId}>ID {materialId}</span>
            </p>
          </div>
        </div>

        <div className="grid flex-none grid-cols-2 gap-2 sm:flex sm:flex-wrap sm:justify-end">
          {capabilities.canFavorite && (
            <ActionButton
              label={isFavorited ? '已收藏' : '收藏'}
              title={isFavorited ? '取消收藏' : '收藏'}
              pressed={isFavorited}
              disabled={controlsDisabled}
              onClick={onFavorite}
            >
              <svg className="h-5 w-5" fill={isFavorited ? 'currentColor' : 'none'} stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={isFavorited ? 0 : 2} d="M6 4h12a1 1 0 011 1v15.382a.5.5 0 01-.777.416L12 17.5l-6.223 3.298A.5.5 0 015 20.382V5a1 1 0 011-1z" />
              </svg>
            </ActionButton>
          )}

          <ActionButton
            label={busyAction === 'share' ? '复制中' : '分享'}
            disabled={controlsDisabled}
            onClick={onShare}
          >
            <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8.684 13.342A3 3 0 108.684 10.658m0 2.684l6.632 3.316m-6.632-6l6.632-3.316m0 0a3 3 0 105.367-2.684 3 3 0 00-5.367 2.684zm0 9.316a3 3 0 105.368 2.684 3 3 0 00-5.368-2.684z" />
            </svg>
          </ActionButton>

          {capabilities.canEdit && (
            <ActionButton
              label="编辑"
              disabled={controlsDisabled}
              onClick={onEdit}
            >
              <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
              </svg>
            </ActionButton>
          )}

          {capabilities.canDelete && (
            <ActionButton
              label="删除"
              danger
              disabled={controlsDisabled}
              onClick={onDelete}
            >
              <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
              </svg>
            </ActionButton>
          )}
        </div>
      </div>
    </section>
  )
}