#Requires -RunAsAdministrator
<#
.SYNOPSIS
    BTGO Telegram Bot - Service Uninstall Script
.DESCRIPTION
    Dezinstaleaza serviciul Windows BTGO Telegram Bot
.NOTES
    Rulare: Right-click → "Run with PowerShell" (ca Administrator)
#>

$ErrorActionPreference = "Stop"

# ============================================================================
# CONFIGURATION
# ============================================================================

$ServiceName = "BTGOTelegramBot"
$ScriptDir = Split-Path -Parent $PSCommandPath
$ProjectDir = Resolve-Path (Join-Path $ScriptDir "..\..\..") | Select-Object -ExpandProperty Path
$NssmPath = Join-Path $ProjectDir "deployment\windows\tools\nssm.exe"

function Write-ColorOutput {
    param([string]$Message, [string]$Prefix = "")
    $color = switch ($Prefix) {
        "[OK]" { "Green" }
        "[INFO]" { "Cyan" }
        "[EROARE]" { "Red" }
        "[AVERTIZARE]" { "Yellow" }
        default { "White" }
    }
    if ($Prefix) {
        Write-Host "$Prefix " -ForegroundColor $color -NoNewline
        Write-Host $Message
    } else {
        Write-Host $Message
    }
}

function Write-Separator {
    param([string]$Title = "")
    Write-Host ""
    Write-Host ("=" * 80) -ForegroundColor Cyan
    if ($Title) {
        Write-Host $Title -ForegroundColor Yellow
        Write-Host ("=" * 80) -ForegroundColor Cyan
    }
}

# ============================================================================
# VERIFICARE SERVICIU
# ============================================================================

Write-Separator "DEZINSTALARE SERVICIU: $ServiceName"
Write-Host ""

$service = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue

if (-not $service) {
    Write-ColorOutput "Serviciul $ServiceName nu este instalat." -Prefix "[INFO]"
    Write-Host "Nimic de dezinstalat."
    Read-Host "`nApasa Enter pentru a inchide"
    exit 0
}

# ============================================================================
# OPRIRE SERVICIU
# ============================================================================

Write-ColorOutput "Verificare status serviciu..." -Prefix "[INFO]"

if ($service.Status -eq "Running") {
    Write-ColorOutput "Serviciul ruleaza. Oprire..." -Prefix "[INFO]"
    try {
        Stop-Service -Name $ServiceName -Force
        Write-ColorOutput "Serviciu oprit cu succes" -Prefix "[OK]"
        Start-Sleep -Seconds 2
    } catch {
        Write-ColorOutput "Oprirea serviciului a esuat!" -Prefix "[AVERTIZARE]"
        Write-ColorOutput "Incercam oprire fortata..." -Prefix "[INFO]"
        sc.exe stop $ServiceName | Out-Null
        Start-Sleep -Seconds 5
    }
} else {
    Write-ColorOutput "Serviciul este deja oprit" -Prefix "[INFO]"
}

# ============================================================================
# DEZINSTALARE SERVICIU
# ============================================================================

Write-ColorOutput "Dezinstalare serviciu..." -Prefix "[INFO]"

try {
    if (Test-Path $NssmPath) {
        # Folosește NSSM pentru dezinstalare
        & $NssmPath remove $ServiceName confirm
        if ($LASTEXITCODE -ne 0) { throw }
    } else {
        # Fallback la sc delete
        Write-ColorOutput "NSSM nu a fost gasit, folosim sc delete" -Prefix "[INFO]"
        sc.exe delete $ServiceName | Out-Null
        if ($LASTEXITCODE -ne 0) { throw }
    }
} catch {
    Write-ColorOutput "Dezinstalarea serviciului a esuat!" -Prefix "[EROARE]"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

# ============================================================================
# VERIFICARE FINALA
# ============================================================================

Start-Sleep -Seconds 2

$serviceCheck = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue

if (-not $serviceCheck) {
    Write-Separator "[SUCCES] SERVICIU DEZINSTALAT CU SUCCES!"
    Write-Host ""
    Write-Host "Serviciul $ServiceName a fost eliminat din sistem." -ForegroundColor Green
    Write-Host ""
    Write-Host "Pentru a reinstala serviciul, rulati:" -ForegroundColor Yellow
    Write-Host "  .\install_service.ps1"
    Write-Host ""
    Write-Separator
} else {
    Write-ColorOutput "Serviciul pare sa mai existe in sistem!" -Prefix "[AVERTIZARE]"
    Write-Host "Poate fi nevoie de un restart al sistemului."
    Get-Service -Name $ServiceName | Format-List
}

Read-Host "`nApasa Enter pentru a inchide"