import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';

import '../../app/theme.dart';
import 'settings_screen.dart';

const _faq = [
  (
    'Is Nanga Kathai free?',
    'Yes. Every song is free to stream with a free account, with no ads. Guests can hear a 30-second '
        'preview of each song. If you would like to help, you can make a one-time gift from Settings > '
        'Support Nanga Kathai.',
  ),
  (
    'How do I listen without internet?',
    'Tap ⋮ on a song and choose Download, or use the download button on an album page. Your songs appear in '
        'the Downloads tab and play anywhere, even without signal. By default songs download only on Wi-Fi; you '
        'can change that in Settings.',
  ),
  (
    'Can I copy downloaded songs to another phone or app?',
    'No. Downloads are encrypted and play only inside Nanga Kathai on your phone. This protects the singers '
        'whose work we share.',
  ),
  (
    'Music is playing on the phone speaker instead of my Bluetooth speaker.',
    'Open the player and tap the speaker name under the play controls. Your phone will show every speaker and '
        'headset you can use; pick the one you want. If your device is not listed, make sure it is switched on '
        'and paired in your phone\'s Bluetooth settings.',
  ),
  (
    'How do I make songs sound better?',
    'In the player, tap Sound. Choose a preset such as Vocal or Bass boost, or move the sliders yourself. '
        'Volume boost helps with quiet old cassette recordings. (On iPhone, use Settings > Apps > Music > EQ.)',
  ),
  (
    'I forgot my password.',
    'On the sign-in screen tap "Forgot password?". We will email you a code to set a new one. You can also '
        'choose "Email me a code instead" to sign in without a password.',
  ),
  (
    'One of these songs is mine, or my family\'s.',
    'Thank you for letting us know. Tap ⋮ on the song and choose "Is this your song?". You can ask us to '
        'credit you, correct the details, or remove the song. We review every request.',
  ),
  (
    'I am a singer or music director. Can I publish my songs here?',
    'Yes, that is why we built Nanga Kathai. Creator accounts are coming in a future update. Until then, '
        'write to support@nkbmusic.com and we will get in touch.',
  ),
  (
    'How do I delete my account?',
    'Open your profile (the person icon on Home or in Library) and tap Delete account. Your profile, likes and '
        'playlists are removed for good.',
  ),
];

class HelpScreen extends StatelessWidget {
  const HelpScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Help & FAQ')),
      body: ListView(
        padding: const EdgeInsets.fromLTRB(12, 0, 12, 32),
        children: [
          for (final (q, a) in _faq)
            Theme(
              data: Theme.of(context).copyWith(dividerColor: Colors.transparent),
              child: ExpansionTile(
                title: Text(q, style: const TextStyle(fontWeight: FontWeight.w700)),
                childrenPadding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
                expandedAlignment: Alignment.centerLeft,
                children: [Text(a, style: const TextStyle(color: NkColors.mutedOnPhoto, height: 1.5))],
              ),
            ),
          const SizedBox(height: 16),
          Card(
            color: NkColors.surface,
            child: ListTile(
              leading: const Icon(Icons.mail_outline, color: NkColors.sun),
              title: const Text('Still need help?'),
              subtitle: const Text('Write to us at support@nkbmusic.com'),
              onTap: () => contactSupport(),
            ),
          ),
          TextButton(onPressed: () => context.push('/report'), child: const Text('Report a problem with a song')),
        ],
      ),
    );
  }
}