import 'dart:io';
import 'package:flutter/material.dart';
import 'package:planb_logistic/l10n/app_localizations.dart';

/// A dialog component for confirming and displaying captured photos before upload.
///
/// This dialog shows a preview of the captured photo and prompts the user
/// to confirm the upload or cancel/retake.
///
/// Example:
/// ```dart
/// final confirmed = await PhotoCaptureDialog.show(
///   context,
///   imageFile: File(pickedFile.path),
///   deliveryName: delivery.name,
/// );
///
/// if (confirmed == true) {
///   // Proceed with upload
/// }
/// ```
class PhotoCaptureDialog extends StatelessWidget {
  /// The captured image file to display.
  final File imageFile;

  /// The name of the delivery for the confirmation message.
  final String deliveryName;

  const PhotoCaptureDialog({
    super.key,
    required this.imageFile,
    required this.deliveryName,
  });

  /// Shows the photo capture confirmation dialog.
  ///
  /// Returns `true` if the user confirms the upload, `false` if cancelled.
  /// Returns `null` if the dialog is dismissed without selection.
  static Future<bool?> show(
    BuildContext context, {
    required File imageFile,
    required String deliveryName,
  }) {
    return showDialog<bool>(
      context: context,
      builder: (BuildContext dialogContext) {
        return PhotoCaptureDialog(
          imageFile: imageFile,
          deliveryName: deliveryName,
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context);
    final colorScheme = Theme.of(context).colorScheme;
    final textTheme = Theme.of(context).textTheme;
    final screenSize = MediaQuery.of(context).size;

    return AlertDialog(
      title: Text(
        l10n.confirmPhoto,
        style: textTheme.headlineSmall?.copyWith(
          color: colorScheme.onSurface,
        ),
      ),
      content: SingleChildScrollView(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            ConstrainedBox(
              constraints: BoxConstraints(
                maxHeight: screenSize.height * 0.5,
                maxWidth: screenSize.width * 0.8,
              ),
              child: ClipRRect(
                borderRadius: BorderRadius.circular(8),
                child: Image.file(
                  imageFile,
                  fit: BoxFit.contain,
                  errorBuilder: (context, error, stackTrace) {
                    return Container(
                      height: 200,
                      width: double.infinity,
                      decoration: BoxDecoration(
                        color: colorScheme.errorContainer,
                        borderRadius: BorderRadius.circular(8),
                      ),
                      child: Center(
                        child: Icon(
                          Icons.broken_image,
                          size: 48,
                          color: colorScheme.error,
                        ),
                      ),
                    );
                  },
                ),
              ),
            ),
            const SizedBox(height: 16),
            Text(
              l10n.uploadPhotoConfirmation(deliveryName),
              style: textTheme.bodyMedium?.copyWith(
                color: colorScheme.onSurface,
              ),
              textAlign: TextAlign.center,
            ),
          ],
        ),
      ),
      actions: [
        TextButton(
          onPressed: () => Navigator.of(context).pop(false),
          child: Text(
            l10n.cancel,
            style: TextStyle(color: colorScheme.error),
          ),
        ),
        ElevatedButton(
          onPressed: () => Navigator.of(context).pop(true),
          style: ElevatedButton.styleFrom(
            backgroundColor: colorScheme.primary,
            foregroundColor: colorScheme.onPrimary,
          ),
          child: Text(l10n.upload),
        ),
      ],
    );
  }
}