import 'dart:io';

import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'package:lucide_icons/lucide_icons.dart';

import '../../../../core/theme/design_tokens.dart';

const homeAttachmentStripKey = ValueKey('home_attachment_strip');

class HomeAttachmentStrip extends StatelessWidget {
  const HomeAttachmentStrip({
    super.key,
    required this.images,
    required this.onRemove,
  });

  final List<XFile> images;
  final ValueChanged<int> onRemove;

  @override
  Widget build(BuildContext context) {
    if (images.isEmpty) {
      return const SizedBox.shrink();
    }

    final colorScheme = Theme.of(context).colorScheme;

    return Container(
      key: homeAttachmentStripKey,
      padding: const EdgeInsets.all(AppSpacing.sm),
      decoration: BoxDecoration(
        color: colorScheme.surfaceContainerLow,
        borderRadius: BorderRadius.circular(AppRadius.xl),
        border: Border.all(color: colorScheme.outlineVariant),
      ),
      child: Wrap(
        spacing: AppSpacing.sm,
        runSpacing: AppSpacing.sm,
        children: images.asMap().entries.map((entry) {
          return _AttachmentPreviewTile(
            image: entry.value,
            onRemove: () => onRemove(entry.key),
          );
        }).toList(),
      ),
    );
  }
}

class _AttachmentPreviewTile extends StatelessWidget {
  const _AttachmentPreviewTile({required this.image, required this.onRemove});

  final XFile image;
  final VoidCallback onRemove;

  @override
  Widget build(BuildContext context) {
    const previewExtent = AppSpacing.xxl * 3 + AppSpacing.sm;
    final colorScheme = Theme.of(context).colorScheme;

    return Stack(
      children: [
        ClipRRect(
          borderRadius: BorderRadius.circular(AppRadius.md),
          child: Image.file(
            File(image.path),
            width: previewExtent,
            height: previewExtent,
            fit: BoxFit.cover,
            errorBuilder: (context, error, stackTrace) {
              return Container(
                width: previewExtent,
                height: previewExtent,
                color: colorScheme.surface,
                alignment: Alignment.center,
                child: Icon(
                  LucideIcons.image,
                  size: AppSpacing.xl,
                  color: colorScheme.onSurfaceVariant,
                ),
              );
            },
          ),
        ),
        Positioned(
          top: AppSpacing.xs,
          right: AppSpacing.xs,
          child: GestureDetector(
            onTap: onRemove,
            child: Container(
              width: AppSpacing.lg + AppSpacing.sm,
              height: AppSpacing.lg + AppSpacing.sm,
              decoration: BoxDecoration(
                color: colorScheme.error,
                shape: BoxShape.circle,
              ),
              child: Icon(
                LucideIcons.x,
                size: AppSpacing.md,
                color: colorScheme.onError,
              ),
            ),
          ),
        ),
      ],
    );
  }
}