wevads-platform/scripts/hamid-image.php

<?php
header('Content-Type: application/json');

$input = json_decode(file_get_contents('php://input'), true);
$prompt = $input['prompt'] ?? '';
$provider = $input['provider'] ?? 'pollinations'; // gratuit!
$size = $input['size'] ?? '1024x1024';

if (empty($prompt)) {
    echo json_encode(['error' => 'Prompt requis']);
    exit;
}

$result = ['success' => false];

switch ($provider) {
    case 'pollinations':
        // API 100% gratuite, sans clé!
        $encodedPrompt = urlencode($prompt);
        $imageUrl = "https://image.pollinations.ai/prompt/{$encodedPrompt}?width=1024&height=1024&nologo=true";
        
        // Télécharger l'image
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $imageUrl,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_TIMEOUT => 60,
            CURLOPT_USERAGENT => 'WEVAL MIND-IA/2.0'
        ]);
        $imageData = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        
        if ($httpCode == 200 && $imageData) {
            // Sauvegarder localement
            $filename = date("Ymd_His") . "_" . substr(md5($prompt), 0, 8) . ".png";
            $filepath = "/opt/wevads/public/hamid-files/" . $filename;
            file_put_contents($filepath, $imageData);
            
            $result = [
                'success' => true,
                'provider' => 'pollinations',
                'prompt' => $prompt,
                'url' => '/hamid-files/' . $filename,
                'external_url' => $imageUrl,
                'size' => strlen($imageData)
            ];
        } else {
            $result['error'] = "Erreur génération image (HTTP $httpCode)";
        }
        break;
        
    case 'stability':
        // Stability AI (nécessite clé API)
        $pdo = new PDO("pgsql:host=localhost;dbname=adx_system", "admin", "admin123");
        $stmt = $pdo->query("SELECT config_value FROM admin.hamid_config WHERE config_key = 'stability_api_key'");
        $apiKey = $stmt->fetchColumn();
        
        if (empty($apiKey)) {
            $result['error'] = "Clé API Stability non configurée";
            break;
        }
        
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => 'https://api.stability.ai/v1/generation/stable-diffusion-xl-1024-v1-0/text-to-image',
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_HTTPHEADER => [
                'Content-Type: application/json',
                'Authorization: Bearer ' . $apiKey
            ],
            CURLOPT_POSTFIELDS => json_encode([
                'text_prompts' => [['text' => $prompt]],
                'cfg_scale' => 7,
                'width' => 1024,
                'height' => 1024,
                'samples' => 1
            ]),
            CURLOPT_TIMEOUT => 60
        ]);
        $response = curl_exec($ch);
        curl_close($ch);
        
        $data = json_decode($response, true);
        if (isset($data['artifacts'][0]['base64'])) {
            $imageData = base64_decode($data['artifacts'][0]['base64']);
            $filename = date("Ymd_His") . "_stability_" . substr(md5($prompt), 0, 8) . ".png";
            $filepath = "/opt/wevads/public/hamid-files/" . $filename;
            file_put_contents($filepath, $imageData);
            
            $result = [
                'success' => true,
                'provider' => 'stability',
                'prompt' => $prompt,
                'url' => '/hamid-files/' . $filename,
                'size' => strlen($imageData)
            ];
        } else {
            $result['error'] = $data['message'] ?? 'Erreur Stability AI';
        }
        break;
        
    case 'together':
        // Together AI (FLUX gratuit)
        $pdo = new PDO("pgsql:host=localhost;dbname=adx_system", "admin", "admin123");
        $stmt = $pdo->query("SELECT config_value FROM admin.hamid_config WHERE config_key = 'together_api_key'");
        $apiKey = $stmt->fetchColumn();
        
        if (empty($apiKey)) {
            // Fallback à pollinations
            $result['error'] = "Together API non configuré, utilisez pollinations";
            break;
        }
        
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => 'https://api.together.xyz/v1/images/generations',
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_HTTPHEADER => [
                'Content-Type: application/json',
                'Authorization: Bearer ' . $apiKey
            ],
            CURLOPT_POSTFIELDS => json_encode([
                'model' => 'black-forest-labs/FLUX.1-schnell-Free',
                'prompt' => $prompt,
                'width' => 1024,
                'height' => 1024,
                'n' => 1
            ]),
            CURLOPT_TIMEOUT => 60
        ]);
        $response = curl_exec($ch);
        curl_close($ch);
        
        $data = json_decode($response, true);
        if (isset($data['data'][0]['url'])) {
            $imageUrl = $data['data'][0]['url'];
            // Télécharger
            $imageData = file_get_contents($imageUrl);
            $filename = date("Ymd_His") . "_flux_" . substr(md5($prompt), 0, 8) . ".png";
            $filepath = "/opt/wevads/public/hamid-files/" . $filename;
            file_put_contents($filepath, $imageData);
            
            $result = [
                'success' => true,
                'provider' => 'together/FLUX',
                'prompt' => $prompt,
                'url' => '/hamid-files/' . $filename,
                'size' => strlen($imageData)
            ];
        } else {
            $result['error'] = $data['error']['message'] ?? 'Erreur Together AI';
        }
        break;
}

echo json_encode($result);