'use client';
// Subscription.tsx — 订阅导入（链接 + 二维码占位 + 一键导入三方客户端）。承袭 UCSub。
import React, { useEffect, useState } from 'react';
import { Icon } from './icons';
import { card } from './shared';
import type { TFn } from '../lib/i18n';
import { getClient } from '../lib/api/client';

export default function Subscription({ t, mobile }: { t: TFn; mobile: boolean }) {
  const api = getClient();
  const [url, setUrl] = useState('');
  const [copied, setCopied] = useState(false);
  const [reset, setReset] = useState(false);
  const [busy, setBusy] = useState(false);

  useEffect(() => {
    api.getSubscription().then((s) => setUrl(s.url)).catch(() => {});
  }, [api]);

  const clients = [
    { name: `${t('brandName')} App`, sub: 'iOS / Android / 桌面', icon: 'shield-check', accent: true },
    { name: 'Shadowrocket', sub: 'iOS', icon: 'external-link' },
    { name: 'Clash Verge', sub: 'Windows / macOS', icon: 'external-link' },
    { name: 'v2rayN', sub: 'Windows', icon: 'external-link' },
    { name: 'sing-box', sub: '全平台', icon: 'external-link' },
  ];

  async function copy() {
    try {
      await navigator.clipboard?.writeText(url);
    } catch {
      /* ignore */
    }
    setCopied(true);
    setTimeout(() => setCopied(false), 1800);
  }

  async function doReset() {
    if (busy) return;
    setBusy(true);
    try {
      const s = await api.resetSubscription();
      setUrl(s.url);
      setReset(true);
    } finally {
      setBusy(false);
    }
  }

  return (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 18, maxWidth: 720 }}>
      <div>
        <div style={{ fontFamily: 'var(--font-display)', fontSize: 25, fontWeight: 700, color: 'var(--fg1)' }}>{t('subTitle')}</div>
        <div style={{ fontSize: 13, color: 'var(--fg3)', marginTop: 5, lineHeight: 1.6 }}>{t('subDesc')}</div>
      </div>
      <div style={{ display: 'grid', gridTemplateColumns: mobile ? '1fr' : '1fr auto', gap: 14, alignItems: 'start' }}>
        {/* link card */}
        <div style={{ ...card, padding: '18px 20px' }}>
          <div style={{ display: 'flex', alignItems: 'center', gap: 9, background: 'var(--bg-subtle)', border: '1px solid var(--border)', borderRadius: 'var(--radius-md)', padding: '11px 13px', marginBottom: 12 }}>
            <Icon name="link" size={15} color="var(--fg3)" />
            <span style={{ flex: 1, fontFamily: 'var(--font-mono)', fontSize: 12.5, color: 'var(--fg1)', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{url || t('loading')}</span>
          </div>
          <div style={{ display: 'flex', gap: 10, flexWrap: 'wrap' }}>
            <button onClick={copy} style={{ display: 'inline-flex', alignItems: 'center', gap: 7, border: 'none', borderRadius: 'var(--radius-full)', padding: '10px 18px', background: 'var(--accent)', color: '#fff', fontWeight: 700, fontSize: 13.5, cursor: 'pointer' }}>
              <Icon name={copied ? 'check' : 'copy'} size={15} color="#fff" />
              {copied ? t('subCopied') : t('subCopy')}
            </button>
            <button onClick={doReset} disabled={busy} style={{ display: 'inline-flex', alignItems: 'center', gap: 7, border: '1.5px solid var(--border-strong)', borderRadius: 'var(--radius-full)', padding: '10px 18px', background: 'transparent', color: 'var(--fg2)', fontWeight: 600, fontSize: 13.5, cursor: busy ? 'wait' : 'pointer' }}>
              <Icon name="refresh-cw" size={14} color="var(--fg2)" />
              {t('subReset')}
            </button>
          </div>
          <div style={{ fontSize: 11.5, color: reset ? 'var(--success)' : 'var(--fg3)', marginTop: 10, display: 'flex', alignItems: 'center', gap: 6 }}>
            {reset && <Icon name="check-circle" size={13} color="var(--success)" />}
            {reset ? t('subResetOk') : t('subResetSub')}
          </div>
        </div>
        {/* QR */}
        <div style={{ ...card, padding: '16px', width: mobile ? '100%' : 170, boxSizing: 'border-box', textAlign: 'center' }}>
          <div style={{ width: 138, height: 138, margin: '0 auto', borderRadius: 'var(--radius-md)', background: 'var(--bg-subtle)', border: '1px dashed var(--border-strong)', display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', gap: 8 }}>
            <Icon name="qr-code" size={42} color="var(--fg3)" stroke={1.5} />
            <span style={{ fontSize: 10.5, color: 'var(--fg3)', fontWeight: 600 }}>{t('scanTitle')}</span>
          </div>
          <div style={{ fontSize: 10.5, color: 'var(--fg3)', marginTop: 10, lineHeight: 1.5 }}>{t('scanSub')}</div>
        </div>
      </div>
      {/* one-tap import */}
      <div style={{ ...card, padding: '18px 20px' }}>
        <div style={{ fontSize: 14.5, fontWeight: 700, color: 'var(--fg1)' }}>{t('importTitle')}</div>
        <div style={{ fontSize: 12.5, color: 'var(--fg3)', margin: '4px 0 14px' }}>{t('importSub')}</div>
        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fill,minmax(190px,1fr))', gap: 10 }}>
          {clients.map((c) => (
            <button key={c.name} style={{ display: 'flex', alignItems: 'center', gap: 11, textAlign: 'left', cursor: 'pointer', background: c.accent ? 'var(--accent-subtle)' : 'var(--surface)', border: `1px solid ${c.accent ? 'var(--accent-border)' : 'var(--border)'}`, borderRadius: 'var(--radius-lg)', padding: '12px 14px' }}>
              <div style={{ width: 34, height: 34, borderRadius: 'var(--radius-md)', background: c.accent ? 'var(--accent)' : 'var(--bg-subtle)', display: 'flex', alignItems: 'center', justifyContent: 'center', flexShrink: 0 }}>
                <Icon name={c.icon} size={17} color={c.accent ? '#fff' : 'var(--accent)'} />
              </div>
              <div style={{ minWidth: 0 }}>
                <div style={{ fontSize: 13.5, fontWeight: 600, color: 'var(--fg1)', whiteSpace: 'nowrap' }}>{c.name}</div>
                <div style={{ fontSize: 11, color: 'var(--fg3)' }}>{c.sub}</div>
              </div>
            </button>
          ))}
        </div>
        <div style={{ fontSize: 11.5, color: 'var(--fg3)', marginTop: 12 }}>{t('fmtNote')}</div>
      </div>
    </div>
  );
}