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const sqlite3 = require('sqlite3').verbose();
const fs = require('fs');
const location = process.env.SQLITE_DB_LOCATION || '/etc/todos/todo.db';
let db, dbAll, dbRun;
function init() {
const dirName = require('path').dirname(location);
if (!fs.existsSync(dirName)) {
fs.mkdirSync(dirName, { recursive: true });
}
return new Promise((acc, rej) => {
db = new sqlite3.Database(location, err => {
if (err) return rej(err);
if (process.env.NODE_ENV !== 'test')
console.log(`Using sqlite database at ${location}`);
db.run(
'CREATE TABLE IF NOT EXISTS todo_items (id varchar(36), name varchar(255), completed boolean)',
(err, result) => {
if (err) return rej(err);
acc();
},
);
});
});
}
async function teardown() {
return new Promise((acc, rej) => {
db.close(err => {
if (err) rej(err);
else acc();
});
});
}
async function getItems() {
return new Promise((acc, rej) => {
db.all('SELECT * FROM todo_items', (err, rows) => {
if (err) return rej(err);
acc(
rows.map(item =>
Object.assign({}, item, {
completed: item.completed === 1,
}),
),
);
});
});
}
async function getItem(id) {
return new Promise((acc, rej) => {
db.all('SELECT * FROM todo_items WHERE id=?', [id], (err, rows) => {
if (err) return rej(err);
acc(
rows.map(item =>
Object.assign({}, item, {
completed: item.completed === 1,
}),
)[0],
);
});
});
}
async function storeItem(item) {
return new Promise((acc, rej) => {
db.run(
'INSERT INTO todo_items (id, name, completed) VALUES (?, ?, ?)',
[item.id, item.name, item.completed ? 1 : 0],
err => {
if (err) return rej(err);
acc();
},
);
});
}
async function updateItem(id, item) {
return new Promise((acc, rej) => {
db.run(
'UPDATE todo_items SET name=?, completed=? WHERE id = ?',
[item.name, item.completed ? 1 : 0, id],
err => {
if (err) return rej(err);
acc();
},
);
});
}
async function removeItem(id) {
return new Promise((acc, rej) => {
db.run('DELETE FROM todo_items WHERE id = ?', [id], err => {
if (err) return rej(err);
acc();
});
});
}
module.exports = {
init,
teardown,
getItems,
getItem,
storeItem,
updateItem,
removeItem,
};
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