import { Check, Copy, MessageCircle, Music2 } from 'lucide-react';
import { useEffect, useMemo, useRef, useState } from 'react';

import { copyTextToClipboard } from '../../services/clipboard';
import {
  buildPublishShareText,
  type PublishShareModalPayload,
} from './publishShareModalModel';
import { UnifiedModal } from './UnifiedModal';

type PublishShareModalProps = {
  open: boolean;
  payload: PublishShareModalPayload | null;
  onClose: () => void;
};

const SHARE_CHANNELS = [
  {
    id: 'wechat',
    label: '微信',
    icon: MessageCircle,
    className: 'bg-emerald-500 text-white',
  },
  {
    id: 'qq',
    label: 'QQ',
    icon: MessageCircle,
    className: 'bg-sky-500 text-white',
  },
  {
    id: 'douyin',
    label: '抖音',
    icon: Music2,
    className: 'bg-slate-950 text-white',
  },
] as const;

/**
 * 发布完成后的分享弹窗。
 * 目前各渠道先统一复制分享文本，后续如接入微信/QQ/抖音 SDK，可以只替换这里的渠道点击逻辑。
 */
export function PublishShareModal({
  open,
  payload,
  onClose,
}: PublishShareModalProps) {
  const [copyState, setCopyState] = useState<'idle' | 'copied' | 'failed'>(
    'idle',
  );
  const resetTimerRef = useRef<number | null>(null);
  const shareText = useMemo(
    () => (payload ? buildPublishShareText(payload) : ''),
    [payload],
  );

  useEffect(
    () => () => {
      if (resetTimerRef.current !== null) {
        window.clearTimeout(resetTimerRef.current);
      }
    },
    [],
  );

  useEffect(() => {
    setCopyState('idle');
  }, [payload?.publicWorkCode]);

  const copyShareText = () => {
    if (!shareText) {
      return;
    }

    void copyTextToClipboard(shareText).then((copied) => {
      setCopyState(copied ? 'copied' : 'failed');
      if (resetTimerRef.current !== null) {
        window.clearTimeout(resetTimerRef.current);
      }
      resetTimerRef.current = window.setTimeout(() => {
        resetTimerRef.current = null;
        setCopyState('idle');
      }, 1400);
    });
  };

  return (
    <UnifiedModal
      open={open && Boolean(payload)}
      title="分享给朋友"
      onClose={onClose}
      size="sm"
      panelClassName="platform-remap-surface"
      bodyClassName="space-y-4 px-4 py-4 sm:px-5 sm:py-5"
      footerClassName="justify-center border-t-0 px-4 pb-5 pt-0 sm:px-5"
      footer={
        <div className="grid w-full grid-cols-3 gap-3">
          {SHARE_CHANNELS.map((channel) => {
            const Icon = channel.icon;

            return (
              <button
                key={channel.id}
                type="button"
                onClick={copyShareText}
                className="flex min-w-0 flex-col items-center gap-2 rounded-[1rem] px-2 py-2.5 text-xs font-bold text-[var(--platform-text-base)] transition hover:bg-white/62"
                aria-label={`分享到${channel.label}`}
                title={channel.label}
              >
                <span
                  className={`inline-flex h-11 w-11 items-center justify-center rounded-full shadow-sm ${channel.className}`}
                >
                  <Icon className="h-5 w-5" />
                </span>
                <span>{channel.label}</span>
              </button>
            );
          })}
        </div>
      }
    >
      <div className="rounded-[1.25rem] border border-[var(--platform-subpanel-border)] bg-white/72 p-4">
        <div className="whitespace-pre-wrap break-words text-sm leading-6 text-[var(--platform-text-strong)]">
          {shareText}
        </div>
      </div>
      <button
        type="button"
        onClick={copyShareText}
        disabled={!shareText}
        className="platform-button platform-button--primary w-full justify-center gap-2 disabled:cursor-not-allowed disabled:opacity-55"
      >
        {copyState === 'copied' ? (
          <Check className="h-4 w-4" />
        ) : (
          <Copy className="h-4 w-4" />
        )}
        {copyState === 'copied'
          ? '已复制'
          : copyState === 'failed'
            ? '复制失败'
            : '分享'}
      </button>
    </UnifiedModal>
  );
}