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TodoContext.jsx
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TodoContext.jsx
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import { createContext, useState, useEffect } from "react";
import Modal from "react-modal";
export const TodoContext = createContext();
export function TodoProvider({ children }) {
const [todos, setTodos] = useState([]);
const [editableTodoId, setEditableTodoId] = useState(null);
const [currentTodoDescription, setCurrentTodoDescription] = useState("");
const [dropdownShow, setDropdownShow] = useState(false);
const [modalOpen, setModalOpen] = useState(false);
useEffect(() => {
fetchTodos();
}, []);
async function fetchTodos() {
try {
const response = await fetch("http://localhost:3000/todos");
const result = await response.json();
setTodos(result);
} catch (error) {
console.log("Det gick inte att hämta uppgifter", error);
}
}
async function addTodo(description) {
try {
const response = await fetch("http://localhost:3000/todos/", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({
description,
done: false,
}),
});
if (!response.ok) {
throw new Error("Det gick inte att lägga till uppgiften");
}
const newTodo = await response.json();
setTodos((prevTodos) => [...prevTodos, newTodo]);
} catch (error) {
console.error(error);
}
}
async function updateTodoStatus(id, checked) {
try {
const response = await fetch(`http://localhost:3000/todos/${id}`, {
method: "PATCH",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({ done: checked }),
});
if (!response.ok) {
throw new Error("Det gick inte att slutföra åtgärden");
}
const updatedTodo = await response.json();
setTodos((prevTodos) =>
prevTodos.map((todo) =>
todo.id === updatedTodo.id ? updatedTodo : todo
)
);
} catch (error) {
console.error(error);
}
}
const handleTodoClick = (id) => {
setEditableTodoId(id);
const todo = todos.find((todo) => todo.id === id);
setCurrentTodoDescription(todo.description);
};
const handleTodoBlur = async (id) => {
setEditableTodoId(null);
let updatedDescription = currentTodoDescription.trim();
let originalDescription;
const updatedTodos = todos.map((todo) => {
if (todo.id === id) {
originalDescription = todo.description;
if (updatedDescription.length === 0) {
updatedDescription = originalDescription;
}
return { ...todo, description: updatedDescription };
}
return todo;
});
setTodos(updatedTodos);
try {
const response = await fetch(`http://localhost:3000/todos/${id}`, {
method: "PATCH",
headers: {
"Content-Type": "application.json",
},
body: JSON.stringify({ description: updatedDescription }),
});
if (!response.ok) {
throw new Error("Beskrivningen kunde inte uppdateras");
}
} catch (error) {
console.error(error);
}
};
const handleTodoKeyDown = (event, id) => {
if (event.key === "Enter") {
handleTodoBlur(id);
}
};
async function deleteTodo(id) {
try {
const response = await fetch(`http://localhost:3000/todos/${id}`, {
method: "DELETE",
headers: {
"Content-Type": "application/json",
},
});
if (!response.ok) {
throw new Error("Det gick inte att slutföra åtgärden");
}
setTodos((prevTodos) => prevTodos.filter((todo) => todo.id !== id));
} catch (error) {
console.error(error);
}
}
function toggleDropdownDiv() {
setDropdownShow((dropdownShow) => !dropdownShow);
}
const openModal = () => {
Modal.setAppElement("#container");
setModalOpen(true);
};
const closeModal = () => {
setModalOpen(false);
};
return (
<TodoContext.Provider
value={{
todos,
editableTodoId,
currentTodoDescription,
setCurrentTodoDescription,
fetchTodos,
addTodo,
updateTodoStatus,
handleTodoClick,
handleTodoBlur,
handleTodoKeyDown,
deleteTodo,
dropdownShow,
setDropdownShow,
toggleDropdownDiv,
modalOpen,
setModalOpen,
openModal,
closeModal,
}}
>
{children}
</TodoContext.Provider>
);
}