import 'package:appflowy/plugins/document/presentation/more/cubit/document_appearance_cubit.dart';
import 'package:appflowy_editor/appflowy_editor.dart';
import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:google_fonts/google_fonts.dart';

class EditorStyleCustomizer {
  EditorStyleCustomizer({
    required this.context,
  });

  static double get horizontalPadding =>
      PlatformExtension.isDesktop ? 50.0 : 10.0;

  final BuildContext context;

  EditorStyle style() {
    if (PlatformExtension.isDesktopOrWeb) {
      return desktop();
    } else if (PlatformExtension.isMobile) {
      return mobile();
    }
    throw UnimplementedError();
  }

  EditorStyle desktop() {
    final theme = Theme.of(context);
    final fontSize = context.read<DocumentAppearanceCubit>().state.fontSize;
    return EditorStyle.desktop(
      padding: EdgeInsets.symmetric(horizontal: horizontalPadding),
      backgroundColor: theme.colorScheme.surface,
      cursorColor: theme.colorScheme.primary,
      textStyleConfiguration: TextStyleConfiguration(
        text: TextStyle(
          fontFamily: 'Poppins',
          fontSize: fontSize,
          color: theme.colorScheme.onBackground,
          height: 1.5,
        ),
        bold: const TextStyle(
          fontFamily: 'Poppins-Bold',
          fontWeight: FontWeight.w600,
        ),
        italic: const TextStyle(fontStyle: FontStyle.italic),
        underline: const TextStyle(decoration: TextDecoration.underline),
        strikethrough: const TextStyle(decoration: TextDecoration.lineThrough),
        href: TextStyle(
          color: theme.colorScheme.primary,
          decoration: TextDecoration.underline,
        ),
        code: GoogleFonts.robotoMono(
          textStyle: TextStyle(
            fontSize: fontSize,
            fontWeight: FontWeight.normal,
            color: Colors.red,
            backgroundColor: theme.colorScheme.inverseSurface,
          ),
        ),
      ),
    );
  }

  EditorStyle mobile() {
    final theme = Theme.of(context);
    final fontSize = context.read<DocumentAppearanceCubit>().state.fontSize;
    return EditorStyle.desktop(
      padding: EdgeInsets.symmetric(horizontal: horizontalPadding),
      backgroundColor: theme.colorScheme.surface,
      cursorColor: theme.colorScheme.primary,
      textStyleConfiguration: TextStyleConfiguration(
        text: TextStyle(
          fontFamily: 'poppins',
          fontSize: fontSize,
          color: theme.colorScheme.onBackground,
          height: 1.5,
        ),
        bold: const TextStyle(
          fontFamily: 'poppins-Bold',
          fontWeight: FontWeight.w600,
        ),
        italic: const TextStyle(fontStyle: FontStyle.italic),
        underline: const TextStyle(decoration: TextDecoration.underline),
        strikethrough: const TextStyle(decoration: TextDecoration.lineThrough),
        href: TextStyle(
          color: theme.colorScheme.primary,
          decoration: TextDecoration.underline,
        ),
        code: GoogleFonts.robotoMono(
          textStyle: TextStyle(
            fontSize: fontSize,
            fontWeight: FontWeight.normal,
            color: Colors.red,
            backgroundColor: theme.colorScheme.inverseSurface,
          ),
        ),
      ),
    );
  }

  TextStyle headingStyleBuilder(int level) {
    final fontSize = context.read<DocumentAppearanceCubit>().state.fontSize;
    final fontSizes = [
      fontSize + 16,
      fontSize + 12,
      fontSize + 8,
      fontSize + 4,
      fontSize + 2,
      fontSize
    ];
    return TextStyle(
      fontSize: fontSizes.elementAtOrNull(level - 1) ?? fontSize,
      fontWeight: FontWeight.bold,
    );
  }

  TextStyle codeBlockStyleBuilder() {
    final theme = Theme.of(context);
    final fontSize = context.read<DocumentAppearanceCubit>().state.fontSize;
    return TextStyle(
      fontFamily: 'poppins',
      fontSize: fontSize,
      height: 1.5,
      color: theme.colorScheme.onBackground,
    );
  }
}