const expensesCol = collection(firestore, 'expenses')
const expensesQuery = query(
	expensesCol,
	// >, >=, <, <=, ==, !=
	where('release', '>', new Date('6/10/2023')),
	// in, not-in
	where('city', 'in', ['sanaa', 'aden']),
	// we can nest objects to 20 nest
	where('product.cost', '>=', 200),
	where('product.cost', '<=', 100),
	// category is an array: [...]
	where('category', '==', ['food', 'candy']),
	// if category contain 
	where('category', 'array-contains', 'food'),
	// if category contain any of
	where('category', 'array-contains-any', ['food', 'candy']),
	// for range functions, all of them depend on what orderBy
	orderBy('date', 'desc')
	// if use both it will get range of values
	startAt(new Date('1/1/2022'))
	endAt(new Date('/1/2022'))
	limit(100)
)

getDocs(booksRef)
    .then((snapshot) => {
		// console.log(snapshot.docs)
		let books = []
		snapshot.docs.forEach((doc) => {
			books.push({ ...doc.data(), id: doc.id })
		})
		console.log(books)
	})
	.catch(err => {
		console.log(err.message)
	})

getDoc(bookRef)
	.then( doc => {
		console.log(doc.data(), doc.id)
	})