Trying to extract specific text and merge output with existing output - powershell

Question

I want to extract text from a .txt file. The way the file is layed out is in this format (below first block). Optimally, I would like for the powershell script to take the content of username and votecount and output them side by side. With an integer of 25>= add the letter D beside it. With the output adding itself to a pre-existing output file. Say this week is week 1. And testuser voted 25 times. They should have the output "testuser" 25D. But say in week 2 they voted 24 times. Then it should be "testuser" 49D. However say they had 25 again. Output should then be "testuser" 50DD or 50D2?.. I have what I think should work as an initial baseline for the script which in itself doesn't work.. But combining an output with a pre existing output is beyond my capability. This needs to parse an entire txt file of some 100+ people. So imagine there's like an extra 100 users..
{
"username": "testuser",
"votecount": "42",
"votesclaimed": "0",
"lastvotetime": "2022-11-04 09:08:29",
"steamid": "00000000000000000000"
}
Below is what I am working with.
Get-Content -Raw C:\Users\--------\Desktop\votes.txt |
ConvertFrom-txt |
ForEach-Object {
[pscustomobject] #{
UserName = $_.username
VoteCount = '{0}{1}' -f $_.votecount, ('', 'D')[[int] $_.votecount -gt 25]
}
} |
Export-Csv -NoTypeInformation -Encoding utf8 C:\Users\---------\Desktop\outvotes.csv

Answer 1

Try following :
$match = Select-String -Path "c:\temp\test.txt" -Pattern '^\s*"(?<key>[^"]+)"\s*:\s*"(?<value>[^"]+)'
$table = [System.Collections.ArrayList]::new()
foreach( $row in $match.Matches )
{
$key = $row.Groups["key"].Value
$value = $row.Groups["value"].Value
if($key -eq "username") {
$newRow = New-Object -TypeName psobject
$table.Add($newRow) | Out-Null
}
$newRow | Add-Member -NotePropertyName $key -NotePropertyValue $value
}
$table | Format-Table
$groups = $table | Group-Object {$_.username}