#
# AWS PowerOn/Off Schedular
# Tag Name: Power_Options
# Requires AWS plugin: https://aws.amazon.com/powershell/
# Set-AWSCredentials -AccessKey <access key> -SecretKey <secret key> -Storeas <profile name>
# Full instructions found http://i-script-stuff.electric-horizons.com/
#
#


#profiles to check
$profile_list = ("Example_1")


#Just a quick check for powershell 3.0 and older changes the method of plugin loading.
if($PSVersionTable.PSVersion.Major -ge 4) {
Import-Module AWSPowerShell
} else {
Import-Module "C:\Program Files (x86)\AWS Tools\PowerShell\AWSPowerShell\AWSPowerShell.psd1"
}


#Actual Engine.
#Parses through profiles and regions.
foreach($profile in $profile_list) {
Set-AWSCredentials -ProfileName $profile
$region_list = Get-AWSRegion | select -expandproperty Region

    foreach($region in $region_list) {
    $Instance_list = Get-EC2Instance -region $region |select -expandproperty instances

    $VPC_list = Get-EC2Vpc -Region $region
        foreach ($VPC in $VPC_list) {
            $Instance_list | Where-Object {$_.VpcId -eq $VPC.VpcId} | foreach-object {
            $Instance_name = ($_.Tags | Where-Object {$_.Key -eq 'Name'}).Value
            $power_Action = $NULL
                if($Power_Options = ($_.Tags | Where-Object {$_.Key -eq 'Power_Options'}).Value) {
                if($_.State.Name -like "running") {
                stop-EC2Instance -InstanceId $_.InstanceId -Region $region
                } else {
                Start-EC2Instance -InstanceId $_.InstanceId -Region $region
                }
                }
            }
        }
    }
}