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

import '../i18n/strings.g.dart';
import 'theme.dart';

/// Where the full legal documents are published. The masters live in the
/// repository under `docs/legal/` and must stay in sync with these pages.
const String legalBaseUrl = 'https://tane.comunes.org/legal';

/// "Privacy & rules": in-app, human-language summaries of the privacy policy,
/// the terms + community rules, and the seed-legality notice, each linking to
/// the full published text.
class LegalScreen extends StatelessWidget {
  const LegalScreen({super.key});

  @override
  Widget build(BuildContext context) {
    final t = context.t;
    return Scaffold(
      appBar: AppBar(title: Text(t.legal.title)),
      body: ListView(
        padding: const EdgeInsets.fromLTRB(20, 16, 20, 32),
        children: [
          _Section(
            icon: Icons.lock_outline,
            title: t.legal.privacyTitle,
            body: t.legal.privacyBody,
            url: '$legalBaseUrl/privacy',
          ),
          _Section(
            icon: Icons.handshake_outlined,
            title: t.legal.rulesTitle,
            body: t.legal.rulesBody,
            url: '$legalBaseUrl/rules',
          ),
          _Section(
            icon: Icons.grass_outlined,
            title: t.legal.seedsTitle,
            body: t.legal.seedsBody,
            url: '$legalBaseUrl/seeds',
          ),
        ],
      ),
    );
  }
}

/// One titled summary block with its "read the full text" link.
class _Section extends StatelessWidget {
  const _Section({
    required this.icon,
    required this.title,
    required this.body,
    required this.url,
  });

  final IconData icon;
  final String title;
  final String body;
  final String url;

  @override
  Widget build(BuildContext context) {
    final t = context.t;
    final theme = Theme.of(context);
    return Padding(
      padding: const EdgeInsetsDirectional.only(bottom: 24),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(icon, color: seedGreen),
              const SizedBox(width: 10),
              Expanded(
                child: Text(
                  title,
                  style: theme.textTheme.titleMedium?.copyWith(
                    color: seedOnSurface,
                    fontWeight: FontWeight.w600,
                  ),
                ),
              ),
            ],
          ),
          const SizedBox(height: 8),
          Text(
            body,
            style: theme.textTheme.bodyMedium?.copyWith(
              color: seedOnSurface,
              height: 1.5,
            ),
          ),
          TextButton.icon(
            style: TextButton.styleFrom(
              padding: EdgeInsets.zero,
              foregroundColor: seedGreen,
            ),
            icon: const Icon(Icons.open_in_new, size: 16),
            label: Text(t.legal.readFull),
            onPressed: () => launchUrl(
              Uri.parse(url),
              mode: LaunchMode.externalApplication,
            ),
          ),
        ],
      ),
    );
  }
}