Rename-CameraTrapCaptures.ps1

# Description: Rename argument files of taken photos (JPG) and videos (AVI) to a Nextcloud compatible timestamp format.
#
# Author: Markus Kwaśnicki
# 
# Prerequisites:
# * { Install-Module -Name ExifDateTime -Scope CurrentUser }
# * { Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope CurrentUser }
# 
# Setup: Create shortcut to
# `"C:\Program Files\PowerShell\7\pwsh.exe" -WindowStyle Hidden -File "%USERPROFILE%\Documents\PowerShell\Scripts\Rename-FotofallenFotos.ps1"´ inside
# `shell:SendTo´.
#
# Hint: Set `$DebugPreference = "Continue"´ for the debug messages to be displayed.
#
# See also:
# * https://github.com/ChrisWarwick/ExifDateTime
# * https://markw.dev/sendto_powershell/

param (
    [Parameter(ValueFromRemainingArguments=$true)]
    $FilePath
)

Get-ChildItem -Recurse -Path $FilePath | ForEach-Object {
  if ((Split-Path $_ -Leaf) -match '^DSCF(\d{4}).*\.JPG') {
    Get-ExifDateTaken $_ | ForEach-Object {
      $NewName = '{0:yyyy-MM-dd HH-mm-ss} {1}.jpg' -f $_.ExifDateTaken, $Matches[1]
      $RenameMessage = "Rename-Item from '{0}' to '{1}'" -f (Split-Path $_ -Leaf), $NewName
      Write-Debug $RenameMessage
      Rename-Item -Path $_ -NewName $NewName
    }
  }
}

Get-ChildItem -Recurse -Path $FilePath | ForEach-Object {
  if ((Split-Path $_ -Leaf) -match '^DSCF(\d{4}).*\.AVI') {
    $CreationTime = $_.CreationTime   # Better this should be Exif date taken of the first (JPEG) frame
    $NewName = '{0:yyyy-MM-dd HH-mm-ss} {1}.avi' -f $CreationTime, $Matches[1]
    $RenameMessage = "Rename-Item from '{0}' to '{1}'" -f (Split-Path $_ -Leaf), $NewName
    Write-Debug $RenameMessage
    Rename-Item -Path $_ -NewName $NewName
  }
}