import { Todo } from '../types';

const API_URL = '/todos';

export const fetchTodos = async (): Promise<Todo[]> => {
  const res = await fetch(API_URL);
  if (!res.ok) {
    throw new Error('Failed to fetch todos');
  }
  return res.json();
};

export const createTodo = async (data: { title: string; completed?: boolean }): Promise<Todo> => {
  const res = await fetch(API_URL, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(data),
  });
  if (!res.ok) {
    throw new Error('Failed to create todo');
  }
  return res.json();
};

export const updateTodo = async (id: number, data: Partial<Todo>): Promise<Todo> => {
  const res = await fetch(`${API_URL}/${id}`, {
    method: 'PUT',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(data),
  });
  if (!res.ok) {
    throw new Error('Failed to update todo');
  }
  return res.json();
};

export const deleteTodo = async (id: number): Promise<void> => {
  const res = await fetch(`${API_URL}/${id}`, {
    method: 'DELETE',
  });
  if (!res.ok) {
    throw new Error('Failed to delete todo');
  }
};