2015DecemberChallenge.ps1

$list = @"
1 Partridge in a pear tree
2 Turtle Doves
3 French Hens
4 Calling Birds
5 Golden Rings
6 Geese a laying
7 Swans a swimming
8 Maids a milking
9 Ladies dancing
10 Lords a leaping
11 Pipers piping
12 Drummers drumming
"@

$total = 0
$cumulativeTotal = 0
$totalBirds = 0
$giftsWithBirds = 0
$birds = "Partridge","Turtle Doves","French Hens","Calling Birds","Geese","Swans"

$splitList = $list.Split("`n") 

$objectList = $splitList | ForEach-Object {
    $numbers = ($_ -creplace '[^0-9]',"")
    $words = ($_ -creplace '[^a-z A-Z]',"").TrimStart()
    [PSCustomObject]@{
        "GiftNumber" = $numbers
        "GiftType" = $words
    }
}

$sortedByLength = $objectList | Sort-Object {[int]$_.GiftType.length}
$sortedByGifts = $objectList | Sort-Object -Unique {[int]$_.GiftNumber}
$objectList | ForEach-Object {$total += $_.GiftNumber}

$objectList | ForEach-Object {
    $giftType = $_.giftType
    $giftNumber = $_.GiftNumber

    $birds | ForEach-Object {
        if ($giftType -like "*$_*") {
            $giftsWithBirds++
            $totalBirds += $giftNumber
        } 
    }
}

($sortedByGifts.count - 1)..0 | ForEach-Object {
    $interationTotal = 0
    $_..0 | ForEach-Object {
        $objectNumber = $sortedByGifts.GiftNumber[$_]
        $interationTotal += $objectNumber
    }

    $cumulativeTotal += $interationTotal
}

Write-Output "Sorted by gift name length:`n"
$sortedByLength.GiftType
Write-Output "`nSorted by number of gifts:"
$sortedByGifts
Write-Output "`nGifts containing birds in it: $giftsWithBirds"
Write-Output "`nTotal number of birds in gifts: $totalBirds"
Write-Output "`nTotal number of gifts: $total"
Write-Output "`nCumulative number of gifts: $cumulativeTotal"