mongoDB group by date and other column - mongodb

Question

i need some help grouping by date and by other column, at the moment i got:
[
{
'$project': {
'date': 1,
'source': 1,
'callDirection': 1,
'status': 1
}
}, {
'$match': {
'$or': [
{
'source': '501'
}, {
'source': '555'
}
]
}
}, {
'$group': {
'_id': 0,
'total': {
'$sum': 1
},
'answered': {
'$sum': {
'$cond': [
{
'$eq': [
'$status', 'ANSWERED'
]
}, 1, 0
]
}
},
'no answer': {
'$sum': {
'$cond': [
{
'$eq': [
'$status', 'NO ANSWER'
]
}, 1, 0
]
}
}
}
}
]
the result i got now is the totals:
_id:0
total:591
answered:443
no answer:129
what i need is to split the data by source and by date so i get the data return like this
date => 2022-01-23 , source => 501, answered => 12, noanswer => 2
date => 2022-01-23 , source => 555, answered => 5, noanswer => 5
date => 2022-01-24 , source => 501, answered => 6, noanswer => 3
date => 2022-01-24 , source => 555, answered => 22, noanswer => 6
example data:
"date": "2021-12-23 10:25:59","source": "501","callDirection": "Outgoing","status": "ANSWERED"
"date": "2021-12-23 11:21:19","source": "501","callDirection": "Outgoing","status": "NO ANSWER"
"date": "2021-12-24 01:21:19","source": "501","callDirection": "Outgoing","status": "ANSWERED"
"date": "2021-12-24 10:25:59","source": "555","callDirection": "Outgoing","status": "ANSWERED"
"date": "2021-12-25 12:55:19","source": "555","callDirection": "Outgoing","status": "ANSWERED"
im new to mongoDb and i need some help ,thanks a lot

Answer 1

Perhaps Something like this:
db.collection.aggregate([
{
$addFields: {
date: {
$substr: [
"$date",
0,
10
]
}
}
},
{
$group: {
_id: {
da: "$date",
so: "$source",
cd: "$callDirection"
},
answer: {
"$sum": {
"$cond": [
{
"$eq": [
"ANSWERED",
"$status"
]
},
1,
0
]
}
},
noanswer: {
"$sum": {
"$cond": [
{
"$eq": [
"ANSWERED",
"$status"
]
},
0,
1
]
}
}
}
},
{
$project: {
date: "$_id.da",
source: "$_id.so",
callDirection: "$_id.cd",
answer: 1,
noanswer: 1
}
}
])
Explained:
Replace the datetime string with date only string
Group by date,source & callDirection generating two new counting fields answer and noanswer from the status field.
Project only the necessary fields are needed
playground