import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import '../config/display_config.dart';
import 'custom_app_text_field.dart';

/// Widget générique pour afficher un champ de formulaire
/// S'adapte automatiquement selon le DisplayConfig (editable/readonly, mobile/desktop)
class FormFieldWrapper extends StatelessWidget {
  /// Configuration d'affichage
  final DisplayConfig config;
  
  /// Label du champ
  final String label;
  
  /// Valeur actuelle
  final String value;
  
  /// Controller pour le mode éditable
  final TextEditingController? controller;
  
  /// Callback de changement (mode éditable)
  final ValueChanged<String>? onChanged;
  
  /// Hint du champ (mode éditable)
  final String? hint;
  
  /// Nombre de lignes (pour textarea)
  final int? maxLines;
  
  /// Type de clavier
  final TextInputType? keyboardType;
  
  /// Widget personnalisé à afficher (override le champ standard)
  final Widget? customWidget;

  const FormFieldWrapper({
    super.key,
    required this.config,
    required this.label,
    required this.value,
    this.controller,
    this.onChanged,
    this.hint,
    this.maxLines,
    this.keyboardType,
    this.customWidget,
  });

  @override
  Widget build(BuildContext context) {
    if (config.isReadonly) {
      return _buildReadonlyField(context);
    } else {
      return _buildEditableField(context);
    }
  }

  /// Construit un champ en mode lecture seule
  Widget _buildReadonlyField(BuildContext context) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: LayoutHelper.getSpacing(context, 
          mobileSpacing: 8.0, 
          desktopSpacing: 12.0,
        ),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Label
          Text(
            label,
            style: GoogleFonts.merienda(
              fontSize: config.isMobile ? 14 : 16,
              fontWeight: FontWeight.bold,
              color: const Color(0xFF4A4A4A),
            ),
          ),
          const SizedBox(height: 6),
          
          // Valeur avec fond beige
          Container(
            width: double.infinity,
            padding: const EdgeInsets.symmetric(
              horizontal: 16,
              vertical: 12,
            ),
            decoration: BoxDecoration(
              image: const DecorationImage(
                image: AssetImage('assets/images/bg_beige.png'),
                fit: BoxFit.fill,
              ),
              borderRadius: BorderRadius.circular(8),
            ),
            child: Text(
              value.isEmpty ? '-' : value,
              style: GoogleFonts.merienda(
                fontSize: config.isMobile ? 14 : 16,
                color: const Color(0xFF2C2C2C),
              ),
            ),
          ),
        ],
      ),
    );
  }

  /// Construit un champ en mode éditable
  Widget _buildEditableField(BuildContext context) {
    // Si un widget personnalisé est fourni, l'utiliser
    if (customWidget != null) {
      return Padding(
        padding: EdgeInsets.symmetric(
          vertical: LayoutHelper.getSpacing(context, 
            mobileSpacing: 8.0, 
            desktopSpacing: 12.0,
          ),
        ),
        child: customWidget,
      );
    }

    // Sinon, utiliser le champ standard
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: LayoutHelper.getSpacing(context, 
          mobileSpacing: 8.0, 
          desktopSpacing: 12.0,
        ),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Label
          Text(
            label,
            style: GoogleFonts.merienda(
              fontSize: config.isMobile ? 14 : 16,
              fontWeight: FontWeight.w600,
              color: const Color(0xFF4A4A4A),
            ),
          ),
          const SizedBox(height: 8),
          
          // Champ de saisie
          CustomAppTextField(
            controller: controller!,
            labelText: label,
            hintText: hint ?? label,
            keyboardType: keyboardType ?? TextInputType.text,
            fieldWidth: double.infinity,
          ),
        ],
      ),
    );
  }
}

/// Widget générique pour afficher une ligne de champs
/// S'adapte automatiquement: horizontal sur desktop, vertical sur mobile
class FormFieldRow extends StatelessWidget {
  /// Configuration d'affichage
  final DisplayConfig config;
  
  /// Liste des champs à afficher
  final List<Widget> fields;
  
  /// Espacement entre les champs
  final double? spacing;

  const FormFieldRow({
    super.key,
    required this.config,
    required this.fields,
    this.spacing,
  });

  @override
  Widget build(BuildContext context) {
    final effectiveSpacing = spacing ?? 
      LayoutHelper.getSpacing(context, 
        mobileSpacing: 12.0, 
        desktopSpacing: 20.0,
      );

    if (config.isMobile) {
      // Layout vertical sur mobile
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: fields,
      );
    } else {
      // Layout horizontal sur desktop
      return Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          for (int i = 0; i < fields.length; i++) ...[
            Expanded(child: fields[i]),
            if (i < fields.length - 1) SizedBox(width: effectiveSpacing),
          ],
        ],
      );
    }
  }
}