import 'package:apidash/dashbot/core/utils/safe_parse_json_message.dart';
import 'package:apidash_design_system/tokens/tokens.dart';
import '../../../../core/utils/dashbot_icons.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_markdown/flutter_markdown.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../viewmodel/chat_viewmodel.dart';
import '../../models/chat_models.dart';

class ChatBubble extends ConsumerWidget {
  final String message;
  final MessageRole role;
  final String? promptOverride;
  final ChatAction? action;

  const ChatBubble({
    super.key,
    required this.message,
    required this.role,
    this.promptOverride,
    this.action,
  });

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    if (action != null) {
      debugPrint('[ChatBubble] Action received: ${action!.toJson()}');
    } else {
      final preview =
          message.length > 100 ? '${message.substring(0, 100)}...' : message;
      debugPrint('[ChatBubble] No action received for message: $preview');
    }
    if (promptOverride != null &&
        role == MessageRole.user &&
        message == promptOverride) {
      return SizedBox.shrink();
    }
    if (message.isEmpty) {
      return Align(
        alignment: Alignment.centerLeft,
        child: Column(
          children: [
            kVSpacer8,
            DashbotIcons.getDashbotIcon1(width: 42),
            kVSpacer8,
            CircularProgressIndicator.adaptive(),
          ],
        ),
      );
    }
    // Parse agent JSON when role is system and show only the "explnation" field.
    String renderedMessage = message;
    if (role == MessageRole.system) {
      try {
        final Map<String, dynamic> parsed = MessageJson.safeParse(message);
        if (parsed.containsKey('explnation')) {
          final exp = parsed['explnation'];
          if (exp is String && exp.isNotEmpty) {
            renderedMessage = exp;
          }
        }
      } catch (_) {
        // Fallback to raw message
      }
    }

    return Align(
      alignment: role == MessageRole.user
          ? Alignment.centerRight
          : Alignment.centerLeft,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.start,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          if (role == MessageRole.system) ...[
            kVSpacer6,
            DashbotIcons.getDashbotIcon1(width: 42),
            kVSpacer8,
          ],
          Container(
            margin: const EdgeInsets.symmetric(vertical: 5.0),
            padding: const EdgeInsets.all(12.0),
            constraints: BoxConstraints(
              maxWidth: MediaQuery.of(context).size.width * 0.75,
            ),
            decoration: BoxDecoration(
              color: role == MessageRole.user
                  ? Theme.of(context).colorScheme.primaryContainer
                  : Theme.of(context).colorScheme.surfaceContainerHighest,
              borderRadius: BorderRadius.circular(16.0),
            ),
            child: MarkdownBody(
              data: renderedMessage.isEmpty ? " " : renderedMessage,
              selectable: true,
              styleSheet: MarkdownStyleSheet.fromTheme(
                Theme.of(context),
              ).copyWith(
                p: Theme.of(context).textTheme.bodyMedium?.copyWith(
                      color: role == MessageRole.user
                          ? Theme.of(context).colorScheme.surfaceBright
                          : Theme.of(context).colorScheme.onSurface,
                    ),
              ),
            ),
          ),
          if (role == MessageRole.system) ...[
            if (action != null) ...[
              const SizedBox(height: 4),
              _buildActionButton(context, ref, action!),
            ],
            const SizedBox(height: 4),
            IconButton(
              onPressed: () {
                Clipboard.setData(ClipboardData(text: message));
              },
              icon: Icon(
                Icons.copy_rounded,
                color: Theme.of(context).colorScheme.onSurfaceVariant,
              ),
            ),
          ],
        ],
      ),
    );
  }

  Widget _buildActionButton(
      BuildContext context, WidgetRef ref, ChatAction action) {
    final isTestAction = action.action == 'other' && action.target == 'test';

    return ElevatedButton.icon(
      onPressed: () async {
        final chatViewmodel = ref.read(chatViewmodelProvider.notifier);
        await chatViewmodel.applyAutoFix(action);
        if (isTestAction) {
          debugPrint('Test added to post-request script successfully!');
        } else {
          debugPrint('Auto-fix applied successfully!');
        }
      },
      icon: Icon(isTestAction ? Icons.playlist_add_check : Icons.auto_fix_high,
          size: 16),
      label: Text(isTestAction ? 'Add Test' : 'Auto Fix'),
      style: ElevatedButton.styleFrom(
        backgroundColor: Theme.of(context).colorScheme.primary,
        foregroundColor: Theme.of(context).colorScheme.onPrimary,
        padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
        textStyle: Theme.of(context).textTheme.labelSmall,
      ),
    );
  }
}