import { Plus, Trash2, Edit3, Check, X, BookOpen } from 'lucide-react';
import { useState } from 'react';
import Table from '@/components/Table';
import Popup from '@/components/Popup';
import InputTextWithColorIcon from '@/components/InputTextWithColorIcon';
import { DndProvider } from 'react-dnd';
import { HTML5Backend } from 'react-dnd-html5-backend';
import SpecialityItem from '@/components/Structure/Configuration/SpecialityItem';

const SpecialitiesSection = ({ specialities, setSpecialities, handleCreate, handleEdit, handleDelete }) => {

  const [newSpeciality, setNewSpeciality] = useState(null);
  const [editingSpeciality, setEditingSpeciality] = useState(null);
  const [formData, setFormData] = useState({});
  const [localErrors, setLocalErrors] = useState({});
  const [popupVisible, setPopupVisible] = useState(false);
  const [popupMessage, setPopupMessage] = useState("");

  const [removePopupVisible, setRemovePopupVisible] = useState(false);
  const [removePopupMessage, setRemovePopupMessage] = useState("");
  const [removePopupOnConfirm, setRemovePopupOnConfirm] = useState(() => {});

  // Récupération des messages d'erreur
  const getError = (field) => {
    return localErrors?.[field]?.[0];
  };

  const handleAddSpeciality = () => {
    setNewSpeciality({ id: Date.now(), name: '', color_code: '' });
  };

  const handleRemoveSpeciality = (id) => {
    return handleDelete(id)
      .then(() => {
        setSpecialities(prevSpecialities => prevSpecialities.filter(speciality => speciality.id !== id));
      })
      .catch(error => {
        console.error(error);
      });
  };

  const handleSaveNewSpeciality = () => {
    if (
      newSpeciality.name) {
      handleCreate(newSpeciality)
        .then((createdSpeciality) => {
          setSpecialities([createdSpeciality, ...specialities]);
          setNewSpeciality(null);
          setLocalErrors({});
        })
        .catch((error) => {
          console.error('Error:', error.message);
          if (error.details) {
              console.error('Form errors:', error.details);
              setLocalErrors(error.details);
          }
        });
    } else {
      setPopupMessage("Tous les champs doivent être remplis et valides");
      setPopupVisible(true);
    }
  };

  const handleUpdateSpeciality = (id, updatedSpeciality) => {
    if (
      updatedSpeciality.name) {
      handleEdit(id, updatedSpeciality)
        .then((updatedSpeciality) => {
          setSpecialities(specialities.map(speciality => speciality.id === id ? updatedSpeciality : speciality));
          setEditingSpeciality(null);
          setLocalErrors({});
        })
        .catch((error) => {
          console.error('Error:', error.message);
          if (error.details) {
              console.error('Form errors:', error.details);
              setLocalErrors(error.details);
          }
        });
    } else {
      setPopupMessage("Tous les champs doivent être remplis et valides");
      setPopupVisible(true);
    }
  };

  const handleChange = (e) => {
    const { name, value } = e.target;
    let parsedValue = value;
    if (name.includes('_color')) {
      parsedValue = value;
    }

    const fieldName = name.includes('_color') ? 'color_code' : name;
    if (editingSpeciality) {
      setFormData((prevData) => ({
        ...prevData,
        [fieldName]: parsedValue,
      }));
    } else if (newSpeciality) {
      setNewSpeciality((prevData) => ({
        ...prevData,
        [fieldName]: parsedValue,
      }));
    }
  };

  const renderSpecialityCell = (speciality, column) => {
    const isEditing = editingSpeciality === speciality.id;
    const isCreating = newSpeciality && newSpeciality.id === speciality.id;
    const currentData = isEditing ? formData : newSpeciality;

    if (isEditing || isCreating) {
      switch (column) {
        case 'LIBELLE':
          return (
            <InputTextWithColorIcon
              name="name"
              textValue={currentData.name}
              colorValue={currentData.color_code}
              onTextChange={handleChange}
              onColorChange={handleChange}
              placeholder="Nom de la spécialité"
              errorMsg={getError('name')}
            />
          );
        case 'ACTIONS':
          return (
            <div className="flex justify-center space-x-2">
              <button
                type="button"
                onClick={() => (isEditing ? handleUpdateSpeciality(editingSpeciality, formData) : handleSaveNewSpeciality())}
                className="text-green-500 hover:text-green-700"
              >
                <Check className="w-5 h-5" />
              </button>
              <button
                type="button"
                onClick={() => (isEditing ? setEditingSpeciality(null) : setNewSpeciality(null))}
                className="text-red-500 hover:text-red-700"
              >
                <X className="w-5 h-5" />
              </button>
            </div>
          );
        default:
          return null;
      }
    } else {
      switch (column) {
        case 'LIBELLE':
          return (
            <SpecialityItem key={speciality.id} speciality={speciality} />
          );
        case 'MISE A JOUR':
          return speciality.updated_date_formatted;
        case 'ACTIONS':
          return (
            <div className="flex justify-center space-x-2">              
              <button
                type="button"
                onClick={() => setEditingSpeciality(speciality.id) || setFormData(speciality)}
                className="text-blue-500 hover:text-blue-700"
              >
                <Edit3 className="w-5 h-5" />
              </button>
              <button
                type="button"
                onClick={() => {
                  setRemovePopupVisible(true);
                  setRemovePopupMessage("Attentions ! \nVous êtes sur le point de supprimer la spécialité " + speciality.name + ".\nÊtes-vous sûr(e) de vouloir poursuivre l'opération ?");
                  setRemovePopupOnConfirm(() => () => {
                    handleRemoveSpeciality(speciality.id)
                      .then(data => {
                        console.log('Success:', data);
                        setPopupMessage("La spécialité " + speciality.name + " a été correctement supprimée");
                        setPopupVisible(true);
                        setRemovePopupVisible(false);
                      })
                      .catch(error => {
                        console.error('Error archiving data:', error);
                        setPopupMessage("Erreur lors de la suppression de la spécialité " + speciality.name);
                        setPopupVisible(true);
                        setRemovePopupVisible(false);
                      });
                  });
                }}
                className="text-red-500 hover:text-red-700"
              >
                <Trash2 className="w-5 h-5" />
              </button>
            </div>
          );
        default:
          return null;
      }
    }
  };

  const columns = [
        { name: 'LIBELLE', label: 'Libellé' },
        { name: 'MISE A JOUR', label: 'Date mise à jour' },
        { name: 'ACTIONS', label: 'Actions' }
      ];

  return (
    <DndProvider backend={HTML5Backend}>
      <div className="space-y-4">
        <div className="flex justify-between items-center">
          <div className="flex items-center mb-4">
            <BookOpen className="w-6 h-6 text-emerald-500 mr-2" />
            <h2 className="text-xl font-semibold">Spécialités</h2>
          </div>
          <button type="button" onClick={handleAddSpeciality} className="text-emerald-500 hover:text-emerald-700">
            <Plus className="w-5 h-5" />
          </button>
        </div>
        <Table
          data={newSpeciality ? [newSpeciality, ...specialities] : specialities}
          columns={columns}
          renderCell={renderSpecialityCell}
        />
        <Popup
          visible={popupVisible}
          message={popupMessage}
          onConfirm={() => setPopupVisible(false)}
          onCancel={() => setPopupVisible(false)}
          uniqueConfirmButton={true}
        />
        <Popup
          visible={removePopupVisible}
          message={removePopupMessage}
          onConfirm={removePopupOnConfirm}
          onCancel={() => setRemovePopupVisible(false)}
        />
      </div>
    </DndProvider>
  );
};

export default SpecialitiesSection;