Cacher is the code snippet organizer for pro developers

# Usage examples
#   .\gist-listing.ps1
#   .\gist-listing.ps1 -Username willprice76
#   .\gist-listing.ps1 -Verbose

param (
    [parameter(Mandatory=$false)]
    [string] $Username = "jhorsman"
)


$apiUrl = "https://api.github.com"
$gistListingUrl = "/users/{0}/gists?page={1}&per_page=1000"  # {0} = username  {1} = page

$year = (Get-Date).Year

$ErrorActionPreference = "Stop"
Write-Verbose "getting list of gists for $Username..."


$gistCount = 0
$createCount = 0
$createCountByYear = @{}
$updateCountByYear = @{}
$UpdateCount = 0
$page = 1
$stop = $false
while ($stop -eq $false)
{
    $request = ($apiUrl + $gistListingUrl -f $Username, $page) 
    Write-Verbose ("querying GitHub; request: {0}" -f $request)
    $feed= ConvertFrom-Json(Invoke-WebRequest $request -Verbose:$false)
    $page++
    $gistCount = $gistCount + $feed.Count

    if($feed.Count -eq 0)
    {
        $stop =  $true
    }

    foreach ($entry in $feed)
    {
        $creationDate = Get-Date($entry.created_at)
        if(($creationDate.Year) -eq $year)
        {
            $createCount++
        }
        $updateDate = Get-Date($entry.updated_at)
        if(($updateDate.Year) -eq $year)
        {
            $updateCount++
        }
        $createCountByYear[$creationDate.Year] = $createCountByYear[$creationDate.Year] + 1
        $updateCountByYear[$updateDate.Year] = $updateCountByYear[$updateDate.Year] + 1
        #Write-Output ("create: {0}   update: {1}" -f $creationDate, $updateDate) 
    }
} 


Write-Output ("found a total of {0} gists for {1}" -f $gistCount, $Username)
Write-Host ("this year ({0}): created {1} gists and updated {2} gists" -f $year, $createCount, $UpdateCount)

foreach($y in $createCountByYear.Keys)
{
    Write-Host ("{0}: created {1} gists" -f $y, $createCountByYear[$y])
}