Laravel Query Builder get sum with clause and results - json

Question

I have this table :
created_at | name | source
this is my builder query:
$data = Contact::select(
DB::raw('DATE_FORMAT(created_at, "%m-%d-%Y")'),
DB::raw('SUM(source = "IG") as instagram'),
DB::raw('SUM(source = "FBS") as facebook')
)
->orderBy('data', 'DESC')
->groupBy(DB::raw("DATE_FORMAT(created_at, '%d-%m-%Y')"))
->get();
return response()->json(['contacts' => $data], 200);
I get a correct Json with sum, groupBy and ordered by data:
{
"contacts": [
{
"created_at": "01-17-2022",
"www": "0",
"FBS": "42"
},
{
"created_at": "01-16-2022",
"www": "3",
"FBS": "68"
}
]
}
But in this way I would be forced to make another json to explode all the data, instead I'd like to return results with details for each rows, like this:
{
"contacts": [
{
"created_at": "01-17-2022",
"www": [
{
counts : 0
}
],
"FBS": [
{
counts : 42
},
{
name : "John Doe",
source: "FBS"
},
...
]
},
{
"created_at": "01-16-2022",
"www": [
{
counts : 3
},
{
name : "John Doe",
source: "FBS"
},
{
name : "Jane Doe",
source: "FBS"
},
...
],
"FBS": [
{
counts : 68,
},
{
name : "John Doe",
source: "FBS"
},
{
name : "Jane Doe",
source: "FBS"
},
...
]
}
]
}
Should I completely change my query? What is the best way for get it?