Moves files into new subfolder for each year/month - powershell

Question

I am trying to move all files under each subfolder into another folder with subfoldername_mmm_yyyy name.
Below codes only move all files in all sub folders into one folder with the name subfoldername_subfoldername_mmm_yyyy.
I know my for each loops are incorrect but I don't know how to fix them, would someone please help?
$curr_date = Get-Date
$folder_path = "C:\Logs\"
$file_type = "C:\Logs\*.log*"
$destination = "C:\Archive\"
# delete tmp files if existed
$deletefile = Get-ChildItem $destination -recurse -include *.7z.tmp -force | remove-item
# set min age of files
$max_days = "-1"
# determine how far back we go based on current date
$zip_date = $curr_date.AddDays($max_days)
Get-ChildItem -Path $folder_path | Where-Object { $_.Attributes -eq "Directory" } | foreach {
# obtain all subfolders
$servername = Get-ChildItem -Path $folder_path | Where-Object { $_.Attributes -eq "Directory" }
# move all files into servername_mmm_yyyy folder
Get-ChildItem $file_type -Recurse | Where-Object { ($_.LastWriteTime -lt $zip_date) -and ($_.psIsContainer -eq $false)}| foreach {
$x = $_.LastWriteTime.ToShortDateString()
$month_year = Get-Date $x -Format MMM_yyyy
$file_destination = ($destination) + ($servername) + "_" + ($month_year)
if (test-path $file_destination) {
move-item $_.fullname $file_destination
}
else {
new-item -ItemType directory -Path $file_destination
move-item $_.fullname $file_destination
}
}
}

Answer 1

Change:
Get-ChildItem $file_type -Recurse | Where-Object { ($_.LastWriteTime -lt $zip_date) -and ($_.psIsContainer -eq $false)} ...
to
Get-ChildItem $file_type -Recurse | Where-Object { ($_.LastWriteTime -lt $zip_date) -and ($_.psIsContainer -eq $false) -and $_.Name.EndsWith(".log")}
and that should get you just the files you want to target

Answer 2

I figured out my problem. Here is how I do it.
I just need to obtain the folder name of each file and build the destination path. Therefore, I only need one foreach loop.
# move all files into servername_mmm_yyyy folder
Get-ChildItem $file_path -Recurse | Where-Object { ($_.LastWriteTime -lt $zip_date) -and ($_.psIsContainer -eq $false)}| foreach {
$x = $_.LastWriteTime.ToShortDateString()
$month_year = Get-Date $x -Format MMM_yyyy
$servername = $_.Directory.Name
$file_destination = ($destination)+($servername)+"_"+($month_year)
if (test-path $file_destination){
copy-item $_.fullname $file_destination
}
else {
new-item -ItemType directory -Path $file_destination
copy-item $_.fullname $file_destination
}
}