class TaskForm extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        .task-form {
          @apply bg-white rounded-lg shadow-md p-6 mb-6;
        }
        .form-title {
          @apply text-xl font-semibold text-gray-800 mb-4;
        }
        .form-group {
          @apply mb-4;
        }
        label {
          @apply block text-sm font-medium text-gray-700 mb-1;
        }
        input, textarea, select {
          @apply w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-blue-500 focus:border-blue-500;
        }
        .priority-options {
          @apply grid grid-cols-3 gap-2 mt-2;
        }
        .priority-option {
          @apply flex items-center justify-center p-2 border rounded-md cursor-pointer;
        }
        .priority-option.selected {
          @apply border-blue-500 bg-blue-50 text-blue-600;
        }
        .submit-btn {
          @apply w-full bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-md transition-colors duration-200;
        }
      </style>
      <div class="task-form">
        <h3 class="form-title">Add New Task</h3>
        <form id="taskForm">
          <div class="form-group">
            <label for="taskTitle">Task Title</label>
            <input type="text" id="taskTitle" required>
          </div>
          <div class="form-group">
            <label for="taskDescription">Description</label>
            <textarea id="taskDescription" rows="3"></textarea>
          </div>
          <div class="form-group">
            <label for="dueDate">Due Date</label>
            <input type="date" id="dueDate" required>
          </div>
          <div class="form-group">
            <label>Priority</label>
            <div class="priority-options">
              <div class="priority-option" data-value="low">Low</div>
              <div class="priority-option" data-value="medium">Medium</div>
              <div class="priority-option selected" data-value="high">High</div>
            </div>
            <input type="hidden" id="priority" value="high">
          </div>
          <button type="submit" class="submit-btn">Add Task</button>
        </form>
      </div>
    `;

    // Priority selection
    this.shadowRoot.querySelectorAll('.priority-option').forEach(option => {
      option.addEventListener('click', () => {
        this.shadowRoot.querySelectorAll('.priority-option').forEach(opt => 
          opt.classList.remove('selected')
        );
        option.classList.add('selected');
        this.shadowRoot.getElementById('priority').value = option.dataset.value;
      });
    });

    // Form submission
    this.shadowRoot.getElementById('taskForm').addEventListener('submit', (e) => {
      e.preventDefault();
      const newTask = {
        title: this.shadowRoot.getElementById('taskTitle').value,
        description: this.shadowRoot.getElementById('taskDescription').value,
        dueDate: this.shadowRoot.getElementById('dueDate').value,
        priority: this.shadowRoot.getElementById('priority').value,
        completed: false
      };
      this.dispatchEvent(new CustomEvent('task-added', { detail: newTask }));
      this.shadowRoot.getElementById('taskForm').reset();
    });
  }
}

customElements.define('task-form', TaskForm);