import 'package:flutter/material.dart';

import '../data/variety_repository.dart';
import '../db/enums.dart';
import '../i18n/strings.g.dart';
import 'theme.dart';

/// Opens the "add a Plantare" sheet — a reproduction commitment. Optionally
/// pre-attached to [varietyId] (when opened from a variety's detail).
Future<void> showPlantareSheet(
  BuildContext context, {
  required VarietyRepository repository,
  String? varietyId,
}) {
  return showModalBottomSheet<void>(
    context: context,
    isScrollControlled: true,
    builder: (_) => _PlantareSheet(repository: repository, varietyId: varietyId),
  );
}

class _PlantareSheet extends StatefulWidget {
  const _PlantareSheet({required this.repository, this.varietyId});

  final VarietyRepository repository;
  final String? varietyId;

  @override
  State<_PlantareSheet> createState() => _PlantareSheetState();
}

class _PlantareSheetState extends State<_PlantareSheet> {
  PlantareDirection _direction = PlantareDirection.iReturn;
  final _counterparty = TextEditingController();
  final _owed = TextEditingController();
  final _note = TextEditingController();
  bool _saving = false;

  @override
  void dispose() {
    _counterparty.dispose();
    _owed.dispose();
    _note.dispose();
    super.dispose();
  }

  String? _nullIfBlank(String s) => s.trim().isEmpty ? null : s.trim();

  Future<void> _save() async {
    setState(() => _saving = true);
    await widget.repository.createPlantare(
      direction: _direction,
      varietyId: widget.varietyId,
      counterparty: _nullIfBlank(_counterparty.text),
      owedDescription: _nullIfBlank(_owed.text),
      note: _nullIfBlank(_note.text),
    );
    if (mounted) Navigator.of(context).pop();
  }

  @override
  Widget build(BuildContext context) {
    final t = context.t;
    return Padding(
      padding: EdgeInsets.only(
        left: 16,
        right: 16,
        top: 16,
        bottom: MediaQuery.of(context).viewInsets.bottom + 16,
      ),
      child: SingleChildScrollView(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            Text(t.plantare.add,
                style: Theme.of(context).textTheme.titleLarge),
            const SizedBox(height: 4),
            Text(t.plantare.help,
                style: const TextStyle(color: seedMuted, fontSize: 13)),
            const SizedBox(height: 16),
            Text(t.plantare.direction,
                style: Theme.of(context).textTheme.labelLarge),
            const SizedBox(height: 6),
            // Two big, human choices — no jargon.
            for (final d in PlantareDirection.values)
              ListTile(
                key: Key('plantare.direction.${d.name}'),
                contentPadding: EdgeInsets.zero,
                leading: Icon(
                  _direction == d
                      ? Icons.radio_button_checked
                      : Icons.radio_button_unchecked,
                  color: _direction == d ? seedGreen : seedMuted,
                ),
                title: Text(d == PlantareDirection.iReturn
                    ? t.plantare.iReturn
                    : t.plantare.owedToMe),
                onTap: () => setState(() => _direction = d),
              ),
            const SizedBox(height: 8),
            TextField(
              key: const Key('plantare.counterparty'),
              controller: _counterparty,
              textCapitalization: TextCapitalization.words,
              decoration: InputDecoration(
                labelText: t.plantare.counterparty,
                helperText: t.plantare.counterpartyHint,
                border: const OutlineInputBorder(),
              ),
            ),
            const SizedBox(height: 12),
            TextField(
              key: const Key('plantare.owed'),
              controller: _owed,
              decoration: InputDecoration(
                labelText: t.plantare.owed,
                helperText: t.plantare.owedHint,
                helperMaxLines: 2,
                border: const OutlineInputBorder(),
              ),
            ),
            const SizedBox(height: 12),
            TextField(
              key: const Key('plantare.note'),
              controller: _note,
              minLines: 1,
              maxLines: 3,
              decoration: InputDecoration(
                labelText: t.plantare.note,
                border: const OutlineInputBorder(),
              ),
            ),
            const SizedBox(height: 20),
            FilledButton(
              key: const Key('plantare.save'),
              onPressed: _saving ? null : _save,
              child: Text(t.plantare.save),
            ),
          ],
        ),
      ),
    );
  }
}