import 'package:flutter/material.dart';
import '../colors/app_colors.dart';
import '../colors/app_gradients.dart';

import '../main.dart' show supabase;
import '../strings/address_strings.dart';
import '../strings/common_strings.dart';
import '../widgets/tap_bounce.dart';
import 'geocoding_service.dart';

/// Mostra o formulário de morada num modal bottom sheet, no mesmo estilo
/// já usado para o formulário de adicionar criança. Devolve `true` se a
/// morada foi guardada com sucesso.
Future<bool?> showAddressEditSheet(
  BuildContext context, {
  String? initialAddress,
}) {
  return showModalBottomSheet<bool>(
    context: context,
    isScrollControlled: true,
    showDragHandle: true,
    backgroundColor: AppColors.pinkBackground,
    shape: const RoundedRectangleBorder(
      borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
    ),
    builder: (ctx) => AddressEditSheet(initialAddress: initialAddress),
  );
}

class AddressEditSheet extends StatefulWidget {
  const AddressEditSheet({super.key, this.initialAddress});

  final String? initialAddress;

  @override
  State<AddressEditSheet> createState() => _AddressEditSheetState();
}

class _AddressEditSheetState extends State<AddressEditSheet> {
  late final _addressController = TextEditingController(
    text: widget.initialAddress ?? '',
  );
  bool _saving = false;
  String? _errorText;

  @override
  void dispose() {
    _addressController.dispose();
    super.dispose();
  }

  Future<void> _save() async {
    final address = _addressController.text.trim();
    if (address.isEmpty) {
      setState(() => _errorText = AddressStrings.addressRequired);
      return;
    }

    setState(() {
      _saving = true;
      _errorText = null;
    });

    final coords = await GeocodingService.geocodeAddress(address);
    if (!mounted) return;
    if (coords == null) {
      setState(() {
        _saving = false;
        _errorText = AddressStrings.geocodeFailed;
      });
      return;
    }

    final uid = supabase.auth.currentUser?.id;
    if (uid == null) {
      setState(() => _saving = false);
      return;
    }

    try {
      await supabase.from('profiles').upsert({
        'id': uid,
        'address': address,
        'address_lat': coords.lat,
        'address_lon': coords.lon,
      });
      if (!mounted) return;
      Navigator.of(context).pop(true);
    } catch (e) {
      if (!mounted) return;
      setState(() {
        _saving = false;
        _errorText = AddressStrings.saveError(e);
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    final bottomInset = MediaQuery.viewInsetsOf(context).bottom;
    return SafeArea(
      child: Padding(
        padding: EdgeInsets.fromLTRB(18, 6, 18, 18 + bottomInset),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            const Text(
              AddressStrings.title,
              textAlign: TextAlign.center,
              style: TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.w900,
                color: AppColors.pink,
              ),
            ),
            const SizedBox(height: 12),
            Container(
              padding: const EdgeInsets.all(14),
              decoration: BoxDecoration(
                color: Colors.white.withValues(alpha: 0.82),
                borderRadius: BorderRadius.circular(16),
                border: Border.all(color: Colors.black.withValues(alpha: 0.08)),
              ),
              child: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  TextField(
                    controller: _addressController,
                    enabled: !_saving,
                    textInputAction: TextInputAction.done,
                    textCapitalization: TextCapitalization.sentences,
                    onSubmitted: (_) => _save(),
                    decoration: InputDecoration(
                      labelText: AddressStrings.label,
                      hintText: AddressStrings.hint,
                      errorText: _errorText,
                    ),
                  ),
                  const SizedBox(height: 10),
                  Text(
                    AddressStrings.privacyDisclaimer,
                    style: TextStyle(
                      fontSize: 11.5,
                      fontWeight: FontWeight.w600,
                      color: Colors.black.withValues(alpha: 0.5),
                      height: 1.35,
                    ),
                  ),
                ],
              ),
            ),
            const SizedBox(height: 14),
            Row(
              children: [
                Expanded(
                  child: SizedBox(
                    height: 44,
                    child: TextButton(
                      onPressed: _saving
                          ? null
                          : () => Navigator.of(context).pop(false),
                      child: const Text(CommonStrings.cancel),
                    ),
                  ),
                ),
                const SizedBox(width: 10),
                Expanded(
                  child: TapBounce(
                    child: ClipRRect(
                      borderRadius: BorderRadius.circular(999),
                      child: DecoratedBox(
                        decoration: const BoxDecoration(
                          gradient: kGreenButtonGradient,
                        ),
                        child: SizedBox(
                          height: 44,
                          child: FilledButton(
                            style: FilledButton.styleFrom(
                              backgroundColor: Colors.transparent,
                              foregroundColor: Colors.white,
                              shape: const StadiumBorder(),
                              textStyle: const TextStyle(
                                fontWeight: FontWeight.w900,
                              ),
                            ),
                            onPressed: _saving ? null : _save,
                            child: _saving
                                ? const SizedBox(
                                    width: 18,
                                    height: 18,
                                    child: CircularProgressIndicator(
                                      strokeWidth: 2,
                                      color: Colors.white,
                                    ),
                                  )
                                : const Text(AddressStrings.save),
                          ),
                        ),
                      ),
                    ),
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}