# ==========================================
# 📜 LOG VIEWER
# ==========================================
# View logs from sing-box and ProxiFyre

param([switch]$Follow)

$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
. "$ScriptDir\lib\Common.ps1"

$SingboxLog = "C:\Tools\sing-box\singbox.log"
$ProxiFyreLog = "C:\Tools\ProxiFyre"

function Show-LogFile {
    param(
        [string]$Path,
        [string]$Title,
        [int]$Lines = 30,
        [string]$Color = "Gray"
    )
    
    if (Test-Path $Path) {
        Write-Host "`n═══ $Title ═══" -ForegroundColor Cyan
        $content = Get-Content $Path -Tail $Lines -ErrorAction SilentlyContinue
        if ($content) {
            $content | ForEach-Object { Write-Host "   $_" -ForegroundColor $Color }
        }
        else {
            Write-Host "   (Лог пустой)" -ForegroundColor DarkGray
        }
    }
    else {
        Write-Host "`n═══ $Title ═══" -ForegroundColor Cyan
        Write-Host "   (Файл не найден: $Path)" -ForegroundColor DarkGray
    }
}

function Tail-Logs {
    Write-Host "`n📜 Режим отслеживания логов (Ctrl+C для выхода)" -ForegroundColor Yellow
    Write-Host "   sing-box: $SingboxLog" -ForegroundColor DarkGray
    Write-Host "   ProxiFyre: $ProxiFyreLog\*.log" -ForegroundColor DarkGray
    Write-Host ""
    
    $sbPos = 0
    $pfPos = 0
    $pfLogFile = $null
    
    # Initial positions
    if (Test-Path $SingboxLog) { $sbPos = (Get-Item $SingboxLog).Length }
    $pfLogFile = Get-ChildItem "$ProxiFyreLog\*.log" -ErrorAction SilentlyContinue | Sort-Object LastWriteTime | Select-Object -Last 1
    if ($pfLogFile) { $pfPos = $pfLogFile.Length }
    
    try {
        while ($true) {
            Start-Sleep -Milliseconds 500
            
            # Sing-box
            if (Test-Path $SingboxLog) {
                $newSize = (Get-Item $SingboxLog).Length
                if ($newSize -gt $sbPos) {
                    $content = Get-Content $SingboxLog -Tail 20 -ErrorAction SilentlyContinue
                    # Show only new lines (approximate)
                    $content | Select-Object -Last ([math]::Max(1, [math]::Ceiling(($newSize - $sbPos) / 100))) | ForEach-Object {
                        Write-Host "[SB] $_" -ForegroundColor Green
                    }
                    $sbPos = $newSize
                }
            }
            
            # ProxiFyre
            $pfLogFile = Get-ChildItem "$ProxiFyreLog\*.log" -ErrorAction SilentlyContinue | Sort-Object LastWriteTime | Select-Object -Last 1
            if ($pfLogFile) {
                $newSize = $pfLogFile.Length
                if ($newSize -gt $pfPos) {
                    $content = Get-Content $pfLogFile.FullName -Tail 20 -ErrorAction SilentlyContinue
                    $content | Select-Object -Last ([math]::Max(1, [math]::Ceiling(($newSize - $pfPos) / 100))) | ForEach-Object {
                        Write-Host "[PF] $_" -ForegroundColor Yellow
                    }
                    $pfPos = $newSize
                }
            }
        }
    }
    catch {
        Write-Host "`nОстановлено." -ForegroundColor Gray
    }
}

# --- MAIN ---

Write-Header "ПРОСМОТР ЛОГОВ" -ClearScreen

$opts = [Ordered]@{
    "1" = "Показать последние логи"
    "2" = "Следить за логами в реальном времени (tail -f)"
    "b" = "Назад"
}

$choice = Show-Menu -Options $opts

switch ($choice) {
    "1" {
        Show-LogFile -Path $SingboxLog -Title "SING-BOX (VPN)" -Lines 50 -Color "Green"
        
        $pfLog = Get-ChildItem "$ProxiFyreLog\*.log" -ErrorAction SilentlyContinue | Sort-Object LastWriteTime | Select-Object -Last 1
        if ($pfLog) {
            Show-LogFile -Path $pfLog.FullName -Title "PROXIFYRE (Discord)" -Lines 50 -Color "Yellow"
        }
        else {
            Write-Host "`n═══ PROXIFYRE (Discord) ═══" -ForegroundColor Cyan
            Write-Host "   (Логов не найдено в $ProxiFyreLog)" -ForegroundColor DarkGray
        }
        
        Write-Host ""
        Read-Host "Нажмите Enter для выхода"
    }
    "2" {
        Tail-Logs
    }
    "b" { exit }
}