import { useParams, Link, useNavigate } from 'react-router-dom';
import { useCard } from '../hooks/useCard';
import { useCardDetailMutations } from '../hooks/useCardDetailMutations';
import { useChecklistMutations } from '../hooks/useChecklistMutations';
import { useLabels } from '../hooks/useLabels';
import { useLabelMutations, useCardLabelMutations } from '../hooks/useLabelMutations';
import { useModal } from '../context/modals/useModal';
import { CardSidebar } from '../components/CardSidebar';
import { CardComments } from '../components/CardComments';
import { CardChecklists } from '../components/CardChecklists';
import { CardLabels } from '../components/CardLabels';
import { EditCardModal } from '../components/EditCardModal';
import { DeleteCardModal } from '../components/DeleteCardModal';
import Trash2Icon from '../components/icons/Trash2Icon';
import ArrowLeftIcon from '../components/icons/ArrowLeftIcon';
import Edit2Icon from '../components/icons/Edit2Icon';

export function CardDetail() {
  const { id: boardId, cardId } = useParams<{ id: string; cardId: string }>();
  const navigate = useNavigate();
  const { card, fetchCard } = useCard(parseInt(cardId || '0'));
  const {
    updateCardNameAndDescription,
    deleteCardWithConfirmation,
    addComment,
    editComment,
    deleteCommentWithConfirmation,
  } = useCardDetailMutations(parseInt(cardId || '0'), card, fetchCard);

  const { openModal } = useModal();
  const checklistMutations = useChecklistMutations(parseInt(cardId || '0'), fetchCard);

  // Labels functionality
  const { labels, refetch: refetchLabels } = useLabels(parseInt(boardId || '0'));
  const { addLabel } = useLabelMutations(parseInt(boardId || '0'), refetchLabels);
  const { addLabelToCardMutation, removeLabelFromCardMutation } = useCardLabelMutations(
    parseInt(cardId || '0'),
    fetchCard
  );

  const handleEditCard = () => {
    if (!card) return;

    openModal((props) => (
      <EditCardModal
        card={card}
        onSave={async (name, description) => {
          return await updateCardNameAndDescription(name, description);
        }}
        onClose={props.onClose}
      />
    ));
  };

  const handleDeleteCard = () => {
    if (!card) return;

    openModal((props) => (
      <DeleteCardModal
        cardName={card.name}
        onDelete={async () => {
          deleteCardWithConfirmation(() => {
            props.onClose();
            navigate(`/boards/${boardId}`);
          });
        }}
        onClose={props.onClose}
      />
    ));
  };

  if (!card) {
    return null;
  }

  const formatDate = (dateString: string) => {
    return new Date(dateString).toLocaleDateString('en-US', {
      year: 'numeric',
      month: 'short',
      day: 'numeric',
      hour: '2-digit',
      minute: '2-digit',
    });
  };

  return (
    <div className="space-y-6">
      <div className="flex justify-between items-start">
        <div>
          <Link
            to={`/boards/${boardId}`}
            className="text-gray-400 hover:text-white transition-colors text-sm flex items-center gap-1"
          >
            <span className="w-4 h-4">
              <ArrowLeftIcon />
            </span>
            Back to Board
          </Link>
          <div className="flex items-center gap-3 mt-2">
            <h1 className="text-3xl font-bold text-white">{card.name}</h1>
            <button
              onClick={handleEditCard}
              className="text-gray-400 hover:text-white transition-colors"
              title="Edit card"
            >
              <span className="w-5 h-5">
                <Edit2Icon />
              </span>
            </button>
          </div>
          <p className="text-gray-400 text-sm mt-1">
            In list • Created {formatDate(card.created_at)}
          </p>
        </div>
        <button
          onClick={handleDeleteCard}
          className="bg-red-600 hover:bg-red-700 text-white font-medium py-2 px-4 rounded-lg transition-colors flex items-center gap-2"
        >
          <span className="w-4 h-4">
            <Trash2Icon />
          </span>
          Delete Card
        </button>
      </div>

      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
        <div className="lg:col-span-2 space-y-6">
          {/* Description Section */}
          <div className="bg-gray-800 rounded-lg p-6">
            <div className="flex justify-between items-center mb-4">
              <h2 className="text-xl font-bold text-white flex items-center gap-2">Description</h2>
              <button
                onClick={handleEditCard}
                className="text-blue-400 hover:text-blue-300 text-sm font-medium"
              >
                Edit
              </button>
            </div>
            <p className="text-gray-300 whitespace-pre-wrap">
              {card.description || 'No description added yet.'}
            </p>
          </div>

          {/* Labels Section */}
          <CardLabels
            labels={labels}
            cardLabels={card.labels || []}
            addLabel={addLabel}
            addLabelToCard={addLabelToCardMutation}
            removeLabelFromCard={removeLabelFromCardMutation}
            refetchLabels={refetchLabels}
            refetchCard={fetchCard}
          />

          {/* Checklists Section */}
          <CardChecklists
            checklists={card.checklists || []}
            cardId={parseInt(cardId || '0')}
            addChecklist={checklistMutations.addChecklist}
            removeChecklist={checklistMutations.removeChecklist}
            addCheckItem={checklistMutations.addCheckItem}
            toggleCheckItem={checklistMutations.toggleCheckItem}
            editCheckItem={checklistMutations.editCheckItem}
            removeCheckItem={checklistMutations.removeCheckItem}
          />

          <CardComments
            card={card}
            addComment={addComment}
            editComment={editComment}
            deleteCommentWithConfirmation={deleteCommentWithConfirmation}
            openModal={openModal}
          />
        </div>

        <CardSidebar card={card} />
      </div>
    </div>
  );
}