Requires:  PSFTP Module (https://gallery.technet.microsoft.com/scriptcenter/PowerShell-FTP-Client-db6fe0cb)
           ff7save (http://www.zophar.net/utilities/genutil/ff7-savegame-converter.html)

## Sync-FF7Save.ps1
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################
# Sync-FF7Save #
################
# I tried doing this without this module and it was hacky, ugly, and stupid.  Thanks, guy who wrote this module.
Import-Module PSFTP

# General Script Variables
$LOCALSAVE="D:\Libraries\<username>\My Documents\Square Enix\FINAL FANTASY VII Steam\user_1234567\save00.ff7"
$LOCALBACKUP="D:\Libraries\<username>\My Documents\Square Enix\FINAL FANTASY VII Steam\user_1234567\save00.ff7.backup"
$WORKINGLOCALSAVE="D:\Libraries\<username>\My Documents\Square Enix\FF7 Save Sync\save00.ff7"
$ANDROIDSAVE="/mnt/external_sd/MEMCARDS/ff7_pc.mcd"
$ANDROIDBACKUP="/mnt/external_sd/MEMCARDS/ff7_pc.mcd.backup"
$WORKINGANDROIDSAVE="D:\Libraries\<username>\My Documents\Square Enix\FF7 Save Sync\ff7_pc.mcd"
$WORKINGANDROIDBACKUP="D:\Libraries\<username>\My Documents\Square Enix\FF7 Save Sync\ff7_pc.mcd.backup"
$WORKINGDIR="D:\Libraries\<username>\My Documents\Square Enix\FF7 Save Sync\"

#FTP Support Variables
$ANDROIDFTP="ftp://gpdxd:31337"
$ANDROIDDIR="/mnt/external_sd/MEMCARDS/"
$USERNAME = "<username>"
$PASSWORD = "android" | ConvertTo-SecureString -asPlainText -Force
$CREDENTIAL = New-Object System.Management.Automation.PSCredential($USERNAME,$PASSWORD)

# Set Save Sync Directory
Set-Location $WORKINGDIR

# Delete working copies of saves if they exist
If (Test-Path $WORKINGLOCALSAVE){Remove-Item $WORKINGLOCALSAVE}
If (Test-Path $WORKINGANDROIDSAVE){Remove-Item $WORKINGANDROIDSAVE}
If (Test-Path $WORKINGANDROIDBACKUP){Remove-Item $WORKINGANDROIDBACKUP}

# Copy Local Save to Save Sync Directory
Copy-Item $LOCALSAVE $WORKINGLOCALSAVE

#Initiate Connection to Android Device
Set-FTPConnection -Credentials $CREDENTIAL -Server $ANDROIDFTP -Session AndroidFF7SyncSession -UsePassive
$FTPSession = Get-FTPConnection -Session AndroidFF7SyncSession

# Download Remote Save to Save Sync Directory
Get-FTPItem -Session $FTPSession -Path $ANDROIDSAVE -LocalPath $WORKINGANDROIDSAVE
Copy-Item $WORKINGANDROIDSAVE $WORKINGANDROIDBACKUP

# Check Timestamp of Remote Save vs. Local Save
$RemoteTimestamp = [datetime](Get-FTPChildItem -Session $FTPSession -Path /mnt/external_sd/MEMCARDS/ff7_pc.mcd).ModifiedDate # Get timestamp of Remote Save from Save Sync Directory
$LocalTimestamp = [datetime](Get-ItemProperty -Path $WORKINGLOCALSAVE -Name LastWriteTime).lastwritetime # Get timestamp from Local Save from Save Sync Directory

# If Remote Save is newer, back up local save and replace
If ($RemoteTimestamp -gt $LocalTimestamp) {
  If (Test-Path $LOCALBACKUP){Remove-Item $LOCALBACKUP} # Remove existing backup if it exists
  Copy-Item $WORKINGLOCALSAVE $LOCALBACKUP ## Make backup copy of local save00.ff7
  CMD /C "remote.cmd" ## Convert .MCD format FF7 save to .FF7 save format save
  Remove-Item $LOCALSAVE ## Replace save00.ff7
  Copy-Item $WORKINGLOCALSAVE $LOCALSAVE
  Write-Host "Remote save was newer.  Local save has been backed up and replaced."
  Write-Host "Launching Black_Chocobo to remind you to open and save the file until this step has been removed."
  & "D:\Program Files (x86)\Black_Chocobo\Black_Chocobo.exe"
}

# If Local save is newer, back up remote save and replace
If ($LocalTimestamp -gt $RemoteTimestamp) {
  # Re-upload downloaded ff7_pc.mcd to ff7_pc.mcd backup
  Add-FTPItem -Session $FTPSession -Path $ANDROIDDIR -LocalPath $WORKINGANDROIDBACKUP -Overwrite
  CMD /C "local.cmd" # Convert .ff7 format FF7 save to .MCD save format save
  # Replace ff7_pc.mcd
  Add-FTPItem -Session $FTPSession -Path $ANDROIDDIR -LocalPath $WORKINGANDROIDSAVE -Overwrite
  Write-Host "Local save was newer.  Remote save has been backed up and replaced."
}

# remote.cmd
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ff7save < remote.txt

# remote.txt
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1
ff7_pc.mcd
1
4
save00.ff7
1
1

# local.cmd
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ff7save < local.txt

# local.txt
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4
save00.ff7
1
1
ff7_pc.mcd
1
1
1