# TestAjani - modelin ekran kartinda (GPU) calisip calismadigini kontrol eder.
# Kullanim: scripts\gpu-kontrol.ps1 [-Model qwen2.5-coder:14b]
# Ne yapar: ekran kartini gosterir, modeli kisa bir istekle yukler, GPU payini ve uretim hizini olcer.
param(
    [string]$Model = $(if ($env:OLLAMA_MODEL) { $env:OLLAMA_MODEL } else { "" })
)
$ErrorActionPreference = 'Stop'
$Ollama = 'http://localhost:11434'

function Ok($m)   { Write-Host "  [TAMAM] $m" -ForegroundColor Green }
function Warn($m) { Write-Host "  [UYARI] $m" -ForegroundColor Yellow }
function Bad($m)  { Write-Host "  [SORUN] $m" -ForegroundColor Red }

Write-Host ""
Write-Host "1) Ekran karti" -ForegroundColor Cyan
$hasNvidia = $false
if (Get-Command nvidia-smi -ErrorAction SilentlyContinue) {
    $gpu = (nvidia-smi --query-gpu=name,memory.used,memory.total,driver_version --format=csv,noheader) -join "; "
    Ok "NVIDIA: $gpu (bellek: kullanilan, toplam MiB; surucu)"
    $hasNvidia = $true
} else {
    Warn "nvidia-smi bulunamadi. NVIDIA karti yoksa ya da surucu kurulu degilse model CPU'da calisir."
}

Write-Host ""
Write-Host "2) Ollama" -ForegroundColor Cyan
try { $tags = Invoke-RestMethod "$Ollama/api/tags" -TimeoutSec 5 }
catch {
    Bad "Bilgisayardaki Ollama'ya ($Ollama) ulasilamadi."
    $c = docker ps --format "{{.Names}}" 2>$null | Select-String -Pattern 'ollama'
    if ($c) { Warn "Ollama Docker konteynerinde calisiyor. Konteyner Windows'ta GPU'yu genellikle KULLANMAZ: https://ollama.com/download adresinden Ollama'yi Windows'a kurun ve Baslat-Windows.bat'i yeniden calistirin." }
    else { Warn "Ollama uygulamasini acin (gorev cubugunda lama simgesi gorunmeli)." }
    exit 1
}
Ok "Ollama calisiyor ($(@($tags.models).Count) model yuklu)"
if (-not $Model) {
    $ps = Invoke-RestMethod "$Ollama/api/ps"
    $Model = if (@($ps.models).Count) { $ps.models[0].name } elseif (@($tags.models | Where-Object { $_.name -eq 'qwen2.5-coder:14b' }).Count) { 'qwen2.5-coder:14b' } else { $tags.models[0].name }
}
if (-not (@($tags.models | Where-Object { $_.name -eq $Model -or $_.name -eq "$($Model):latest" }).Count)) {
    Bad "Model yuklu degil: $Model   ->   ollama pull $Model"; exit 1
}

Write-Host ""
Write-Host "3) Model yukleme ve hiz olcumu: $Model" -ForegroundColor Cyan
$body = @{ model = $Model; prompt = 'Write a Python function that returns the sum of a list.'; stream = $false;
           options = @{ num_predict = 120; num_ctx = 16384 }; keep_alive = '30m' } | ConvertTo-Json -Depth 4
$t0 = Get-Date
$r = Invoke-RestMethod "$Ollama/api/generate" -Method Post -ContentType 'application/json' -Body $body -TimeoutSec 900
$secs = [math]::Round(((Get-Date) - $t0).TotalSeconds, 1)
$tps = if ($r.eval_duration) { [math]::Round($r.eval_count / ($r.eval_duration / 1e9), 1) } else { 0 }
Ok "Yanit alindi ($secs sn, ilk yukleme dahil). Uretim hizi: $tps token/sn"

$ps = Invoke-RestMethod "$Ollama/api/ps"
$m = @($ps.models | Where-Object { $_.name -eq $Model -or $_.name -eq "$($Model):latest" })[0]
$pct = if ($m -and $m.size) { [math]::Round(100 * $m.size_vram / $m.size) } else { 0 }
$vram = if ($m) { [math]::Round($m.size_vram / 1e9, 1) } else { 0 }
$size = if ($m) { [math]::Round($m.size / 1e9, 1) } else { 0 }

Write-Host ""
Write-Host "Sonuc" -ForegroundColor Cyan
if ($pct -ge 100) {
    Ok "Model TAMAMEN ekran kartinda: %100 GPU ($vram GB VRAM). Hiz $tps token/sn."
} elseif ($pct -gt 0) {
    Warn "Modelin GPU payi yalnizca %$pct ($vram / $size GB); kalani CPU'da. Bu belirgin yavaslatir."
    Write-Host "     Cozumler: GPU kullanan diger uygulamalari kapatin; baska bir modeli bosaltin (ollama stop <model>);"
    Write-Host "     daha kucuk model secin (7b) ya da baglam penceresini kucultun (OLLAMA_NUM_CTX=8192)."
} else {
    Bad "Model tamamen CPU'da calisiyor (%0 GPU). Hiz $tps token/sn."
    if ($hasNvidia) { Write-Host "     NVIDIA surucunuzu guncelleyin ve Ollama'yi yeniden baslatin (gorev cubugu > Quit Ollama > yeniden acin)." }
}
Write-Host ""
Write-Host "4) TestAjani uygulamasi" -ForegroundColor Cyan
$want = (Get-Content (Join-Path (Split-Path -Parent $PSScriptRoot) 'VERSION') -ErrorAction SilentlyContinue | Select-Object -First 1)
try {
    $h = Invoke-RestMethod 'http://localhost:8000/api/health' -TimeoutSec 30
    if ($h.version -and $h.version -eq $want) { Ok "Uygulama guncel (surum $want)." }
    else { Warn "Acik olan uygulama ESKI surum ($(if ($h.version) { $h.version } else { 'bilinmiyor' }); klasordeki: $want). Baslat-Windows.bat'i calistirin - uygulama yeniden derlenir." }
} catch { Warn "Uygulama calismiyor (http://localhost:8000). Baslat-Windows.bat ile baslatin." }
Write-Host ""
Write-Host "Ipucu: Uygulamanin ust cubugundaki GPU gostergesi bu bilgileri gercek zamanli gosterir." -ForegroundColor DarkGray