import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../core/providers/bt_provider.dart';
import '../../core/providers/datalog_provider.dart';

class RecordFab extends ConsumerWidget {
  const RecordFab({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final recording = ref.watch(recordingProvider);
    final bt = ref.watch(btProvider);

    // Only show when BT is connected
    if (!bt.isConnected) return const SizedBox.shrink();

    final isRecording = recording.isRecording;

    return FloatingActionButton(
      heroTag: 'record_fab',
      backgroundColor: isRecording ? Colors.red : Theme.of(context).colorScheme.primary,
      onPressed: () async {
        if (isRecording) {
          await ref.read(recordingProvider.notifier).stopRecording();
          if (context.mounted) {
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(
                content: Text(
                  'Session saved — ${recording.frameCount} frames',
                ),
                duration: const Duration(seconds: 2),
              ),
            );
          }
        } else {
          await ref.read(recordingProvider.notifier).startRecording();
        }
      },
      tooltip: isRecording ? 'Stop recording' : 'Start recording',
      child: AnimatedSwitcher(
        duration: const Duration(milliseconds: 200),
        child: isRecording
            ? const Icon(Icons.stop, key: ValueKey('stop'))
            : const Icon(Icons.fiber_manual_record, key: ValueKey('rec')),
      ),
    );
  }
}