pluriwave/lib/pantallas/ajustes/pantalla_ajustes_grabaciones.dart

import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../../estado/estado_grabacion.dart';
import '../../l10n/gen/app_localizations.dart';
import '../../widgets/pluri_glass_surface.dart';
import '../../widgets/pluri_layout.dart';
import '../../widgets/pluri_push_scaffold.dart';

/// GRABACIONES Y MÚSICA group · "Grabaciones" (design ADR-3). Body moved
/// verbatim from the former `_SeccionGrabaciones` in `pantalla_ajustes.dart`
/// — only the panel header's icon and title were removed (the pushed
/// screen's title now carries them); every method below is unchanged.
///
/// Known pre-existing bug, deliberately NOT fixed here (out of scope, moved
/// verbatim, tracked separately): [_editarTamanoMaximo] disposes its
/// [TextEditingController] immediately after `showModalBottomSheet` resolves,
/// racing the sheet's own close animation — the same shape of bug already
/// documented for `_editarGrupo` in `pantalla_ajustes_grupos_favoritos.dart`.
class PantallaAjustesGrabaciones extends StatelessWidget {
  const PantallaAjustesGrabaciones({super.key});

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context);
    return PluriPushScaffold(
      title: l10n.recordingsSectionTitle,
      body: ListView(
        padding: PluriLayout.pageContentPadding,
        children: const [_CuerpoGrabaciones()],
      ),
    );
  }
}

class _CuerpoGrabaciones extends StatelessWidget {
  const _CuerpoGrabaciones();

  Future<void> _seleccionarRuta(BuildContext context) async {
    final estado = context.read<EstadoGrabacion>();
    final messenger = ScaffoldMessenger.of(context);
    final l10n = AppLocalizations.of(context);
    final ruta = await FilePicker.platform.getDirectoryPath(
      dialogTitle: l10n.recordingsFolderDialogTitle,
    );
    if (ruta == null) return;
    try {
      await estado.cambiarDirectorio(ruta);
      if (!context.mounted) return;
      messenger.showSnackBar(
        SnackBar(content: Text(l10n.recordingsPathUpdated)),
      );
    } catch (e) {
      if (!context.mounted) return;
      messenger.showSnackBar(
        SnackBar(content: Text(l10n.recordingsPathSaveError(e.toString()))),
      );
    }
  }

  Future<void> _restaurarRuta(BuildContext context) async {
    final estado = context.read<EstadoGrabacion>();
    final messenger = ScaffoldMessenger.of(context);
    final l10n = AppLocalizations.of(context);
    await estado.restaurarDirectorio();
    if (!context.mounted) return;
    messenger.showSnackBar(
      SnackBar(content: Text(l10n.recordingsDefaultFolderRestored)),
    );
  }

  Future<void> _abrirCarpeta(BuildContext context) async {
    final estado = context.read<EstadoGrabacion>();
    final messenger = ScaffoldMessenger.of(context);
    final l10n = AppLocalizations.of(context);
    try {
      final abierto = await estado.abrirDirectorio();
      if (!context.mounted) return;
      if (!abierto) {
        messenger.showSnackBar(
          SnackBar(content: Text(l10n.recordingsOpenFolderError(l10n.dash))),
        );
      }
    } catch (e) {
      if (!context.mounted) return;
      messenger.showSnackBar(
        SnackBar(content: Text(l10n.recordingsOpenFolderError(e.toString()))),
      );
    }
  }

  Future<void> _editarTamanoMaximo(BuildContext context) async {
    final estado = context.read<EstadoGrabacion>();
    final l10n = AppLocalizations.of(context);
    final actualMb = _bytesAMegabytes(estado.maxBytes);
    final controller = TextEditingController(text: actualMb.toString());

    final nuevoMb = await showModalBottomSheet<int>(
      context: context,
      isScrollControlled: true,
      showDragHandle: true,
      builder: (ctx) {
        final bottom = MediaQuery.viewInsetsOf(ctx).bottom;
        return Padding(
          padding: EdgeInsets.fromLTRB(20, 0, 20, bottom + 24),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(
                l10n.recordingsMaxSizeDialogTitle,
                style: Theme.of(ctx).textTheme.titleLarge,
              ),
              const SizedBox(height: 16),
              TextField(
                controller: controller,
                autofocus: true,
                keyboardType: TextInputType.number,
                decoration: InputDecoration(
                  labelText: l10n.recordingsMaxSizeMbLabel,
                  border: const OutlineInputBorder(),
                ),
              ),
              const SizedBox(height: 16),
              FilledButton.icon(
                onPressed: () {
                  final value = int.tryParse(controller.text.trim());
                  if (value == null || value <= 0) return;
                  Navigator.of(ctx).pop(value);
                },
                icon: const Icon(Icons.save_rounded),
                label: Text(l10n.saveQuickAccessButton),
              ),
            ],
          ),
        );
      },
    );
    controller.dispose();
    if (nuevoMb == null || !context.mounted) return;
    await estado.cambiarMaxBytes(nuevoMb * 1024 * 1024);
    if (!context.mounted) return;
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text(l10n.recordingsMaxSizeSaved(nuevoMb))),
    );
  }

  int _bytesAMegabytes(int bytes) =>
      (bytes / (1024 * 1024)).round().clamp(1, 1048576);

  @override
  Widget build(BuildContext context) {
    // Recording state lives in EstadoGrabacion (S4-R2): this section only
    // rebuilds on recording changes, never on playback notifications.
    final estado = context.watch<EstadoGrabacion>();
    final l10n = AppLocalizations.of(context);

    return PluriGlassSurface(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          FutureBuilder<String>(
            future: estado.directorioEfectivo(),
            builder:
                (ctx, snap) => ListTile(
                  contentPadding: EdgeInsets.zero,
                  leading: const Icon(Icons.folder_outlined),
                  title: Text(l10n.recordingsFolderTitle),
                  subtitle: Text(
                    snap.data ?? l10n.recordingsPathCalculating,
                    maxLines: 2,
                    overflow: TextOverflow.ellipsis,
                  ),
                ),
          ),
          Wrap(
            spacing: 8,
            runSpacing: 8,
            children: [
              OutlinedButton.icon(
                icon: const Icon(Icons.folder_open_rounded),
                label: Text(l10n.recordingsChangePath),
                onPressed: () => _seleccionarRuta(context),
              ),
              FilledButton.tonalIcon(
                icon: const Icon(Icons.folder_copy_rounded),
                label: Text(l10n.recordingsOpenFolder),
                onPressed: () => _abrirCarpeta(context),
              ),
              IconButton.filledTonal(
                tooltip: l10n.recordingsUseDefaultPath,
                icon: const Icon(Icons.restore_rounded),
                onPressed: () => _restaurarRuta(context),
              ),
            ],
          ),
          const SizedBox(height: 8),
          ListTile(
            contentPadding: EdgeInsets.zero,
            leading: const Icon(Icons.sd_storage_rounded),
            title: Text(l10n.recordingsMaxSizeTitle),
            subtitle: Text(
              l10n.recordingsMaxSizeSubtitle(_bytesAMegabytes(estado.maxBytes)),
            ),
            onTap: () => _editarTamanoMaximo(context),
          ),
          const SizedBox(height: 8),
          Text(
            l10n.recordingsOriginalStreamHint,
            style: Theme.of(context).textTheme.bodySmall,
          ),
        ],
      ),
    );
  }
}