#Requires -RunAsAdministrator
<#
.SYNOPSIS
    BTGO Telegram Bot - Complete Deployment Script
.DESCRIPTION
    Deployment complet pentru bot-ul Telegram pe Windows VM
    Verifica dependente, instaleaza requirements, configureaza serviciul
.NOTES
    Rulare: Right-click → "Run with PowerShell" (ca Administrator)
#>

# Error handling
$ErrorActionPreference = "Stop"

# ============================================================================
# FUNCTIONS
# ============================================================================

function Write-ColorOutput {
    param(
        [string]$Message,
        [string]$Color = "White",
        [string]$Prefix = ""
    )

    $prefixColor = switch ($Prefix) {
        "[OK]" { "Green" }
        "[INFO]" { "Cyan" }
        "[EROARE]" { "Red" }
        "[AVERTIZARE]" { "Yellow" }
        default { "White" }
    }

    if ($Prefix) {
        Write-Host $Prefix -ForegroundColor $prefixColor -NoNewline
        Write-Host " $Message" -ForegroundColor $Color
    } else {
        Write-Host $Message -ForegroundColor $Color
    }
}

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
    }
}

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

$ScriptDir = Split-Path -Parent $PSCommandPath
$ProjectDir = Resolve-Path (Join-Path $ScriptDir "..\..\..") | Select-Object -ExpandProperty Path
$ServiceName = "BTGOTelegramBot"

Write-Separator "BTGO TELEGRAM BOT - DEPLOYMENT COMPLET"
Write-Host ""
Write-ColorOutput "Director proiect: $ProjectDir" -Prefix "[INFO]"
Write-Host ""

# ============================================================================
# [1/6] VERIFICARE PYTHON
# ============================================================================

Write-Separator "[1/6] VERIFICARE PYTHON"

try {
    $pythonVersion = python --version 2>&1
    if ($LASTEXITCODE -ne 0) { throw }
    Write-ColorOutput "Python gasit: $pythonVersion" -Prefix "[OK]"
} catch {
    Write-ColorOutput "Python nu este instalat sau nu este in PATH!" -Prefix "[EROARE]"
    Write-Host ""
    Write-Host "Instaleaza Python 3.11+ de la: https://www.python.org/downloads/"
    Write-Host "Asigura-te ca bifezi 'Add Python to PATH' la instalare"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

# ============================================================================
# [2/6] VERIFICARE FISIERE PROIECT
# ============================================================================

Write-Separator "[2/6] VERIFICARE FISIERE PROIECT"

$criticalFiles = @(
    "telegram_trigger_bot.py",
    "btgo_scraper.py",
    "requirements.txt"
)

$filesOk = $true
foreach ($file in $criticalFiles) {
    $filePath = Join-Path $ProjectDir $file
    if (Test-Path $filePath) {
        Write-ColorOutput "$file - OK" -Prefix "[OK]"
    } else {
        Write-ColorOutput "$file - LIPSESTE!" -Prefix "[EROARE]"
        $filesOk = $false
    }
}

if (-not $filesOk) {
    Write-ColorOutput "Fisiere critice lipsesc din proiect!" -Prefix "[EROARE]"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

# ============================================================================
# [3/6] VERIFICARE/CREARE .env
# ============================================================================

Write-Separator "[3/6] VERIFICARE CONFIGURARE (.env)"

$envFile = Join-Path $ProjectDir ".env"
$envExample = Join-Path $ProjectDir ".env.example"

if (-not (Test-Path $envFile)) {
    if (Test-Path $envExample) {
        Write-ColorOutput ".env nu exista. Copiem .env.example..." -Prefix "[INFO]"
        Copy-Item $envExample $envFile
        Write-ColorOutput ".env creat din .env.example" -Prefix "[OK]"
        Write-Host ""
        Write-ColorOutput "IMPORTANT: Editeaza .env si configureaza:" -Prefix "[AVERTIZARE]"
        Write-Host "  - TELEGRAM_BOT_TOKEN"
        Write-Host "  - TELEGRAM_ALLOWED_USER_IDS"
        Write-Host "  - TELEGRAM_CHAT_ID (optional)"
        Write-Host "  - LOGIN_ID si PAROLA pentru BTGO"
        Write-Host ""
        Read-Host "Apasa Enter dupa ce ai configurat .env"
    } else {
        Write-ColorOutput ".env si .env.example lipsesc!" -Prefix "[EROARE]"
        Write-Host "Creaza manual .env cu variabilele necesare"
        Read-Host "`nApasa Enter pentru a inchide"
        exit 1
    }
}

# Verifică variabile critice
$envContent = Get-Content $envFile -Raw
if ($envContent -notmatch "TELEGRAM_BOT_TOKEN=(?!your_).+") {
    Write-ColorOutput "TELEGRAM_BOT_TOKEN nu este configurat in .env!" -Prefix "[EROARE]"
    Write-Host "Editeaza .env si adauga token-ul de la @BotFather"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

if ($envContent -notmatch "LOGIN_ID=(?!your_).+") {
    Write-ColorOutput "LOGIN_ID nu este configurat in .env!" -Prefix "[AVERTIZARE]"
    Write-Host "Scraper-ul nu va functiona fara credentiale BTGO"
}

Write-ColorOutput ".env exista si pare configurat" -Prefix "[OK]"

# ============================================================================
# [4/6] INSTALARE DEPENDENTE PYTHON
# ============================================================================

Write-Separator "[4/6] INSTALARE DEPENDENTE PYTHON"

try {
    Write-ColorOutput "Upgrade pip..." -Prefix "[INFO]"
    python -m pip install --upgrade pip --quiet

    Write-ColorOutput "Instalare requirements.txt..." -Prefix "[INFO]"
    $requirementsFile = Join-Path $ProjectDir "requirements.txt"
    python -m pip install -r $requirementsFile

    if ($LASTEXITCODE -ne 0) { throw }
    Write-ColorOutput "Dependente instalate cu succes" -Prefix "[OK]"
} catch {
    Write-ColorOutput "Instalarea dependentelor a esuat!" -Prefix "[EROARE]"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

# ============================================================================
# [5/6] INSTALARE PLAYWRIGHT BROWSERS (GLOBAL)
# ============================================================================

Write-Separator "[5/6] INSTALARE PLAYWRIGHT BROWSERS (GLOBAL)"

# Setează locație globală pentru browsere (accesibilă pentru serviciul SYSTEM)
$globalBrowserPath = "C:\playwright-browsers"

Write-ColorOutput "Configurare locatie globala browsere: $globalBrowserPath" -Prefix "[INFO]"

# Creează directorul dacă nu există
if (-not (Test-Path $globalBrowserPath)) {
    New-Item -ItemType Directory -Path $globalBrowserPath -Force | Out-Null
    Write-ColorOutput "Director creat: $globalBrowserPath" -Prefix "[OK]"
}

# Acordă permisiuni SYSTEM la director
Write-ColorOutput "Acordare permisiuni SYSTEM..." -Prefix "[INFO]"
icacls $globalBrowserPath /grant "SYSTEM:(OI)(CI)F" /T 2>&1 | Out-Null

# Setează environment variable la nivel de sistem
[System.Environment]::SetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH", $globalBrowserPath, [System.EnvironmentVariableTarget]::Machine)
$env:PLAYWRIGHT_BROWSERS_PATH = $globalBrowserPath
Write-ColorOutput "Environment variable setata: PLAYWRIGHT_BROWSERS_PATH" -Prefix "[OK]"

# Instalează browserele
try {
    Write-ColorOutput "Instalare browsere Playwright in $globalBrowserPath..." -Prefix "[INFO]"
    Write-Host "Aceasta poate dura 1-2 minute..." -ForegroundColor Gray
    python -m playwright install chromium

    if ($LASTEXITCODE -ne 0) { throw }
    Write-ColorOutput "Playwright browsere instalate cu succes!" -Prefix "[OK]"
} catch {
    Write-ColorOutput "Instalarea browserelor Playwright a esuat!" -Prefix "[AVERTIZARE]"
    Write-Host "Scraper-ul poate sa nu functioneze corect"
}

# ============================================================================
# CREARE DIRECTOARE NECESARE
# ============================================================================

$dataDir = Join-Path $ProjectDir "data"
$logsDir = Join-Path $ProjectDir "logs"

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

Write-ColorOutput "Directoare create: data, logs" -Prefix "[OK]"

# ============================================================================
# [6/6] INSTALARE/RESTART SERVICIU
# ============================================================================

Write-Separator "[6/6] INSTALARE SERVICIU WINDOWS"

# Verifică dacă serviciul există
$service = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue

if ($service) {
    Write-ColorOutput "Serviciul exista deja. Reinstalam..." -Prefix "[INFO]"
    & "$ScriptDir\uninstall_service.ps1"
    Start-Sleep -Seconds 3
}

Write-ColorOutput "Rulare install_service.ps1..." -Prefix "[INFO]"
& "$ScriptDir\install_service.ps1"

if ($LASTEXITCODE -ne 0) {
    Write-ColorOutput "Instalarea serviciului a esuat!" -Prefix "[EROARE]"
    Read-Host "`nApasa Enter pentru a inchide"
    exit 1
}

# ============================================================================
# FINALIZARE
# ============================================================================

Write-Separator "[SUCCES] DEPLOYMENT FINALIZAT!"
Write-Host ""
Write-Host "Serviciul BTGO Telegram Bot este acum instalat si ruleaza." -ForegroundColor Green
Write-Host ""
Write-Host "Comenzi utile:" -ForegroundColor Yellow
Write-Host "  - Status:      Get-Service $ServiceName"
Write-Host "  - Logs:        Get-Content '$logsDir\telegram_bot_stdout.log' -Tail 20"
Write-Host "  - Opreste:     Stop-Service $ServiceName"
Write-Host "  - Porneste:    Start-Service $ServiceName"
Write-Host "  - Restart:     Restart-Service $ServiceName"
Write-Host "  - Dezinstala:  .\uninstall_service.ps1"
Write-Host ""
Write-Host "Teste bot Telegram:" -ForegroundColor Yellow
Write-Host "  1. Deschide Telegram si cauta bot-ul tau"
Write-Host "  2. Trimite /start pentru a vedea comenzile"
Write-Host "  3. Trimite /scrape pentru a testa scraper-ul"
Write-Host ""
Write-Host "Verificare logs in timp real:" -ForegroundColor Yellow
Write-Host "  Get-Content '$logsDir\telegram_bot_stdout.log' -Wait"
Write-Host ""
Write-Separator

Read-Host "`nApasa Enter pentru a inchide"