<?php
// WEVIA Vision VL API — Qwen2.5-VL-32B via OpenRouter
header('Content-Type: application/json');
$_ws = [];
foreach(file('/etc/weval/secrets.env') as $l) {
    $l = trim($l); if (!$l || $l[0]==='#') continue;
    list($k,$v) = explode('=', $l, 2);
    $_ws[trim($k)] = trim($v);
}
$key = $_ws['OPENROUTER_KEY'] ?? '';
if (!$key) { echo json_encode(['error'=>'no key']); exit; }

$imageUrl = $_POST['image_url'] ?? $_GET['image_url'] ?? '';
$prompt = $_POST['prompt'] ?? $_GET['prompt'] ?? 'Describe this image in detail';

if (!$imageUrl) { echo json_encode(['error'=>'no image_url']); exit; }

$msgs = [['role'=>'user','content'=>[
    ['type'=>'image_url','image_url'=>['url'=>$imageUrl]],
    ['type'=>'text','text'=>$prompt]
]]];

$ch = curl_init('https://openrouter.ai/api/v1/chat/completions');
curl_setopt_array($ch, [
    CURLOPT_POST=>true, CURLOPT_RETURNTRANSFER=>true, CURLOPT_TIMEOUT=>30, CURLOPT_CONNECTTIMEOUT=>5,
    CURLOPT_HTTPHEADER=>['Content-Type: application/json', 'Authorization: Bearer '.$key],
    CURLOPT_POSTFIELDS=>json_encode(['model'=>'qwen/qwen2.5-vl-32b-instruct', 'messages'=>$msgs, 'max_tokens'=>1000, 'temperature'=>0.5])
]);
$r = curl_exec($ch); $code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch);

if ($code == 200 && $r) {
    $d = json_decode($r, true);
    $text = $d['choices'][0]['message']['content'] ?? '';
    echo json_encode(['response'=>$text, 'provider'=>'Qwen VL-32B', 'model'=>'qwen/qwen2.5-vl-32b-instruct']);
} else {
    echo json_encode(['error'=>'API error', 'code'=>$code, 'raw'=>substr($r,0,200)]);
}