Select the orders placed in 1996-1997 by customers from Brazil SQL(pgAdmin4) to MongoDB - sql

Question

--I have a collection named "orders" and in its documents I have attributes "_id",
"o_clerk", o_comment", "o_custkey" , "o_orderkey", "o_orderdate", "o_totalprice","o_orderstatus", "o_shippriority", "o_orderpriority". "o_orderdate" is is written like this: "o_orderdate" : "1993-08-24". I want to resolve this question from SQL(pgAdmin4) to MongoDB: select the orders placed in 1996-1997 by customers from Brazil. Here is the SQL query for that:
--first I extract the year from the date of placing the order (o_ordered)
SELECT DISTINCT EXTRACT (YEAR FROM o_orderdate )
FROM orders
ORDER BY 1
-- then I continued with this part
SELECT o_orderkey, c_name AS customer_name, n_name,
SUM(CASE WHEN EXTRACT (YEAR FROM o_orderdate ) = 1996 THEN o_totalprice ELSE 0 END ) AS orders_1996,
SUM(CASE WHEN EXTRACT (YEAR FROM o_orderdate ) = 1997 THEN o_totalprice ELSE 0 END ) AS orders_1997
FROM customer
INNER JOIN orders ON c_custkey=o_custkey
INNER JOIN nation ON n_nationkey=c_nationkey
WHERE n_name='BRAZIL'
GROUP BY o_orderkey, c_name, n_name
ORDER BY 1
--In MongoDB I started writing like that:
function parse_date(year) {
year = obj['o_orderdate'].getFullYear();
month = obj['o_orderdate'].getMonth() + 1;
day = obj['o_orderdate'].getUTCDate();
printjson(year);
}
db.orders.find({"_id":
ObjectId("5fb6c08fb8065357ba4fb514"),"o_orderdate":{"$gt":new
Date("1998-01-15")}},{
"o_orderdate":1}).forEach(parse_date)
--I don't know how to do this query in MongoDB.