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useTasks.js
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useTasks.js
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import { useReducer, useEffect } from 'react';
function getTasks(options) {
return fetch('/tasks', options).then((res) => res.json());
}
function updateTask(tasks, id, updatedTask) {
return tasks.map((task) =>
task.id === id ? { ...task, ...updatedTask } : task
);
}
export const reducer = (tasks, action) => {
switch (action.type) {
case 'UPDATE_TASKS':
return action.tasks;
case 'ARCHIVE_TASK':
return updateTask(tasks, action.id, { state: 'TASK_ARCHIVED' });
case 'PIN_TASK':
return updateTask(tasks, action.id, { state: 'TASK_PINNED' });
case 'INBOX_TASK':
return updateTask(tasks, action.id, { state: 'TASK_INBOX' });
case 'EDIT_TITLE':
return updateTask(tasks, action.id, { title: action.title });
default:
return tasks;
}
};
export function useTasks() {
const [tasks, dispatch] = useReducer(reducer, []);
useEffect(() => {
const abortController = new AbortController();
const signal = abortController.signal;
getTasks({ signal })
.then(({ tasks }) => {
dispatch({ type: 'UPDATE_TASKS', tasks });
})
.catch((error) => {
if (!abortController.signal.aborted) {
console.log(error);
}
});
return () => {
abortController.abort();
};
}, []);
return [tasks, dispatch];
}