# Obtener el idioma del sistema
$langId = (Get-UICulture).Name

# Establecer variables según el idioma
if ($langId -eq "es-MX") {
    $titleTxt = "Office 365 Enterprise Kurulum | hecho por srsiaet | www.erium.net"
    $adminTxt = "OBTENIENDO PRIVILEGIOS DE ADMINISTRADOR..."
    $uiTxt = "`t`tPreparando la interface, por favor espera..."
    $psErr = "Ocurrio un error miestras se ejecutaba 0365.ps1."
    O$osErrPopup = "El Sistema Operativo no es Windows 10/11. Este Sistema Operativo no esta soportado. El proceso terminara en 5 segundos."
    $popupTitle = "Hecho por srsaiet | www.erium.net"
} else {
    $titleTxt = "Office 365 Enterprise Setup | hecho por srsaiet | www.TNCTR.com"
    $adminTxt = "ELEVATING ADMINISTRATOR PRIVILEGES..."
    $uiTxt = "`t`tPreparing interface, please wait..."
    $psErr = "An error occurred while running o365.ps1."
    $osErrPopup = "The Operating System is not Windows 10/11. This application is not supported. The process will terminate in 5 seconds."
    $popupTitle = "made by Abdullah ERTÜRK | www.TNCTR.com"
}

# Establecer título de la ventana
$Host.UI.RawUI.WindowTitle = $titleTxt

# Cambiar tamaño de la consola
$Host.UI.RawUI.BufferSize = New-Object System.Management.Automation.Host.Size(100, 4)
$Host.UI.RawUI.WindowSize = New-Object System.Management.Automation.Host.Size(100, 4)

# Verificar permisos de administrador
$currentUser = [Security.Principal.WindowsIdentity]::GetCurrent()
$principal = New-Object Security.Principal.WindowsPrincipal($currentUser)
$isAdmin = $principal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)

if (-not $isAdmin) {
    Write-Host ""
    Write-Host ""
    Write-Host "          $adminTxt"
    Write-Host ""
    
    # Reiniciar con permisos de administrador
    $scriptBlock = "irm https://office.erium.net | iex"
    Start-Process powershell.exe -ArgumentList "-NoProfile -ExecutionPolicy Bypass -Command $scriptBlock" -Verb RunAs
    exit
}

# Verificar versión de Windows
$osVersion = [System.Environment]::OSVersion.Version
$winbuild = $osVersion.Build

if ($winbuild -lt 10240) {
    Write-Host ""
    
    # Mostrar popup con error de versión
    $wshell = New-Object -ComObject wscript.shell
    $wshell.Popup($osErrPopup, 5, $popupTitle, 64 + 4096)
    
    Clear-Host
    exit
}

# Crear directorio temporal para los archivos
$scriptPath = "$env:TEMP\Office365Setup\office"
$langPath = Join-Path $scriptPath "Lang"

if (-not (Test-Path $scriptPath)) {
    New-Item -ItemType Directory -Path $scriptPath | Out-Null
}

if (-not (Test-Path $langPath)) {
    New-Item -ItemType Directory -Path $langPath | Out-Null
}

# Mostrar mensaje de preparación
Write-Host ""
Write-Host "          $uiTxt"

# Definir archivos a descargar
$baseUrl = "https://office.erium.net/office"
$files = @{
    "lang/English.ini"  = Join-Path $langPath "English.ini"
    "lang/Spanish.ini"  = Join-Path $langPath "Spanish.ini"
    "lang/Turkish.ini"  = Join-Path $langPath "Turkish.ini"
    "ico.ico"           = Join-Path $scriptPath "ico.ico"
    "setup.exe"         = Join-Path $scriptPath "setup.exe"
    "check.bat"         = Join-Path $scriptPath "check.bat"
    "o365.ps1"          = Join-Path $scriptPath "o365.ps1"
}

Write-Host ""
Write-Host "          Descargando archivos..."
Write-Host ""

$downloadedFiles = @()
$failedFiles = @()

foreach ($file in $files.Keys) {
    try {
        $url = "$baseUrl/$file"
        $destPath = $files[$file]
        Write-Host "          Descargando: $url"
        
        # Descargar respetando encoding
        $response = Invoke-WebRequest -Uri $url -UseBasicParsing -ErrorAction Stop
        
        # Guardar con UTF-8 y BOM
        if ($file -like "*.ps1" -or $file -like "*.ini") {
            # UTF-8 CON BOM (importante para PowerShell con caracteres especiales)
            $Utf8WithBomEncoding = New-Object System.Text.UTF8Encoding $true
            [System.IO.File]::WriteAllText($destPath, $response.Content, $Utf8WithBomEncoding)
        } else {
            # Para binarios
            [System.IO.File]::WriteAllBytes($destPath, $response.Content)
        }
        
        $downloadedFiles += $file
        Write-Host "          ✓ Descargado: $file"
    } catch {
        Write-Host "          ✗ Error: $file - $($_.Exception.Message)"
        $failedFiles += $file
    }
}

Write-Host ""
Write-Host "          Archivos descargados: $($downloadedFiles.Count)"
Write-Host "          Archivos fallidos: $($failedFiles.Count)"

if ($failedFiles.Count -gt 0) {
    Write-Host ""
    Write-Host "          Archivos que no se descargaron:"
    foreach ($f in $failedFiles) {
        Write-Host "          - $f"
    }
}

# Esperar 3 segundos
Start-Sleep -Seconds 3

# Ejecutar el script o365.ps1 desde su directorio
$o365ScriptPath = Join-Path $scriptPath "o365.ps1"

if (Test-Path $o365ScriptPath) {
    try {
        Write-Host ""
        Write-Host "          Ejecutando o365.ps1..."
        
        # Cambiar al directorio del script para que encuentre los archivos relativos
        Push-Location $scriptPath
        & $o365ScriptPath
        Pop-Location
        
        if ($LASTEXITCODE -ne 0) {
            throw "Script execution failed with exit code: $($LASTEXITCODE)"
        }
    } catch {
        Write-Host ""
        Write-Host "          $psErr"
        Write-Host "          Error: $($_.Exception.Message)"
        Read-Host "Press Enter to continue"
        exit
    }
} else {
    Write-Host ""
    Write-Host "          Error: No se pudo descargar o365.ps1"
    Write-Host "          Ruta esperada: $o365ScriptPath"
    Read-Host "Press Enter to continue"
    exit
}