#Requires -RunAsAdministrator

<#	
	.NOTES
	===========================================================================
	 Created with: 	SAPIEN Technologies, Inc., PowerShell Studio 2021 v5.8.196
	 Created on:   	2022/03/25 05:55:13 PM
	 Created by:   	Yuuki2012
	 Organization: 	Raiza.dev
	 Filename:     	Manager.ps1
	===========================================================================
	.DESCRIPTION
		Manager for Longvinter Windows Server.
#>

if ($IsLinux)
{
	$global:check = 0

	function success ($msg)
	{
		Write-Host "[" -NoNewline
		Write-Host "✓" -NoNewline -ForegroundColor Green
		Write-Host "]" -NoNewline
		Write-Host " $msg"
	}
	function error ($msg)
	{
		Write-Host "[" -NoNewline
		Write-Host "X" -NoNewline -ForegroundColor Red
		Write-Host "]" -NoNewline
		Write-Host " $msg"
	}
	function check_software ($app)
	{
		$exists_bin = Test-Path -Path "/usr/bin/"$app -PathType Leaf
		$exists_loc = Test-Path -Path "/usr/local/bin/"$app -PathType Leaf
	}
	function check_ram ($in)
	{
		eif ($IsLinux)
		{
			$total = $(awk '{ print $2 }' /proc/meminfo | head -n1) / 1024 / 1024

			if ($total -lt 2.79369)
			{
				error "Not enough RAM installed. You need AT LEAST 3GB."
			}
		}
	}
	function check_arch
	{
		$arch = $(uname -m)
		
		if ($arch -eq "x86_64")
		{
			success "$arch OS detected."
			$global:check += 1
		}
		else
		{
			error "$arch OS detected. You need a 64-bit system to install Longvinter Server."
		}
	}
	function check_os
	{
		if ($IsLinux)
		{
			success "Linux detected."
			$global:check += 1
		}
		else
		{
			error "Please run (one of) the other script(s)"
		}
	}
	function getkey
	{
		$exists = Test-Path -Path ".\longvinter-linux-server\Longvinter\Saved\Logs\Longvinter.log" -PathType Leaf
		
		if ($exists)
		{
			Write-Host (Select-String -Pattern "'[0-9a-f]{32}" -Path ".\longvinter-linux-server\Longvinter\Saved\Logs\Longvinter.log").Matches.groups[0].value.ToString().Replace("'", "") -NoNewline -ForegroundColor Green
		}
		else
		{
			error "Longvinter.log not found. Please run the server first."
		}
		
		Exit
	}
	function update
	{
		if (Test-Path ".\longvinter-linux-server\" -PathType Any)
		{
			Set-Location ".\longvinter-linux-server\"
			git fetch
			git restore .
			git pull
			Set-Location "..\"
			success "Successfully updated server."
		}
		else
		{
			error "Longvinter Windows Server is not installed."
		}
	}
	function backup
	{
		$ctime = Get-Date -Format "yyyyMMdd-HHmm"
		mkdir ".\longvinter-linux-server\Longvinter\Backup" -ErrorAction SilentlyContinue
		tar --exclude="*Logs*" --exclude="*CrashReportClient*" -cvzf ".\longvinter-linux-server\Longvinter\Backup\$ctime.tar.gz" ".\longvinter-linux-server\Longvinter\Saved" 2> $null
		success "Created backup in .\longvinter-linux-server\Longvinter\Backup\$ctime.tar.gz"
	}
	function uninstall
	{
		Remove-Item ".\longvinter-linux-server" -Recurse -Force -ErrorAction SilentlyContinue
		success "Removed longvinter-linux-server."
		
		$udp = Get-NetFirewallRule -DisplayName "LongvinterServer UDP" 2> $null
		$tcp = Get-NetFirewallRule -DisplayName "LongvinterServer TCP" 2> $null
		if ($udp -or $tcp)
		{
			Remove-NetFirewallRule -DisplayName "LongvinterServer UDP"
			Remove-NetFirewallRule -DisplayName "LongvinterServer TCP"
			success "Removed Firewall rules."
		}
		else
		{
			success "No firewall rules exist."
		}
		
		Remove-Item ".\Longvinter.lnk" -ErrorAction SilentlyContinue
		success "Removed Longvinter shortcut."
	}

	# Handle commandline arguments
	if ($args.Count -eq 1)
	{
		$arg = $args[0].ToString().ToLower()

		if ($arg -eq "getkey")
		{
			getkey
		}
		elseif ($arg -eq "update")
		{
			update
		}
		elseif ($arg -eq "backup")
		{
			backup
		}
		elseif ($arg -eq "uninstall")
		{
			Write-Host "Uninstalling the server will delete everything in this folder, including backups."
			$answer = Read-Host "> Are you sure you want to uninstall the server? y/n"
			
			if ($answer.ToLower() -eq "yes" -or $answer.ToLower() -eq "y")
			{
				uninstall
			}
		}
		
		Exit
	}

	Write-Host "Please wait while everything is being checked..."
	check_software("Steam")  # argument is program name.
	check_software("/usr/bin/git")
	check_git-lfs
	check_ram(3)  # argument is amount of (required) RAM in GB.
	check_arch
	check_os

	if ($IsWindows)
	{
		if ($check -eq 6)
		{
			Write-Host "Cloning Longvinter Windows Server repository..."
			git clone -q https://github.com/Uuvana-Studios/longvinter-windows-server.git
			
			# Fail-safe for Game.ini.default
			if (Test-Path ".\longvinter-windows-server\Longvinter\Saved\Config\WindowsServer\Game.ini.default" -PathType Leaf)
			{
				Copy-Item ".\longvinter-windows-server\Longvinter\Saved\Config\WindowsServer\Game.ini.default" ".\longvinter-windows-server\Longvinter\Saved\Config\WindowsServer\Game.ini"
			}
			else
			{
				Set-Content -Path ".\longvinter-windows-server\Longvinter\Saved\Config\WindowsServer\Game.ini" -Value "[/game/blueprints/server/gi_advancedsessions.gi_advancedsessions_c]
		ServerName=Unnamed Island
		ServerTag=Default
		MaxPlayers=32
		ServerMOTD=Welcome to Longvinter Island!
		Password=
		CommunityWebsite=www.longvinter.com

		[/game/blueprints/server/gm_longvinter.gm_longvinter_c]
		AdminEosID=97615967659669198
		PVP=true
		TentDecay=true
		MaxTents=2
		ChestRespawnTime=600"
			}
			
			Write-Host "> It is suggested to edit the Game.ini to your liking."
			$edit = Read-Host "> Do you want to edit Game.ini? y/n"
			if ($edit.ToLower() -eq "yes" -or $edit.ToLower() -eq "y")
			{
				notepad ".\longvinter-windows-server\Longvinter\Saved\Config\WindowsServer\Game.ini"
			}
			
			$TargetFile = "$PWD\longvinter-windows-server\LongvinterServer.exe"
			$ShortcutFile = "$PWD\Longvinter.lnk"
			$WScriptShell = New-Object -ComObject WScript.Shell
			$Shortcut = $WScriptShell.CreateShortcut($ShortcutFile)
			$Shortcut.TargetPath = $TargetFile
			$Shortcut.Arguments = "-log"
			$Shortcut.Save()
			Write-Host "> Shortcut created."
			
			Write-Host "Adding firewall rules..."
			New-NetFirewallRule -DisplayName "LongvinterServer UDP" -Action Allow -Protocol UDP -Direction Inbound -LocalPort 7777, 27015, 27016 | Out-Null
			New-NetFirewallRule -DisplayName "LongvinterServer UDP" -Action Allow -Protocol UDP -Direction Outbound -LocalPort 7777, 27015, 2701 | Out-Null
			New-NetFirewallRule -DisplayName "LongvinterServer TCP" -Action Allow -Protocol TCP -Direction Inbound -LocalPort 27015, 27016 | Out-Null
			New-NetFirewallRule -DisplayName "LongvinterServer TCP" -Action Allow -Protocol TCP -Direction Outbound -LocalPort 27015, 27016 | Out-Null
			
			Write-Host "> Press enter to continue..." -NoNewLine
			$Host.UI.ReadLine()
			Write-Host ""
			Write-Host "You can now run the shortcut in the current directory."
		}
		else
		{
			Write-Host "One or more checks failed. Cannot install Longvinter (Windows) Server."
			Exit
		}
	}
	elseif ($IsLinux)
	{
		if ((id -u) -eq 0)
		{
			
		}
		else
		{
			error "Please run the script as root."
		}
	}
}