<?php
header('Content-Type: application/json');
require_once __DIR__ . '/class/db-functions.php';

try {
    $db = DBHandlerSelect::getInstance();
    $pdo = $db->getConnection();

    if (empty($_POST['production_id']) || empty($_POST['photo_type'])) {
        throw new Exception("Dati mancanti");
    }

    $production_id = (int)$_POST['production_id'];
    $type = $_POST['photo_type'];

    if (!isset($_FILES['photo'])) {
        throw new Exception("Nessuna foto caricata");
    }

    // Estensione
    $ext = pathinfo($_FILES['photo']['name'], PATHINFO_EXTENSION);
    $ext = strtolower($ext ?: "jpg");

    // Inserimento record DB
    $stmt = $pdo->prepare("
        INSERT INTO production_photos (production_id, photo_type, filename)
        VALUES (?, ?, '')
    ");
    $stmt->execute([$production_id, $type]);

    $photo_id = $pdo->lastInsertId();
    $timestamp = time();

    $filename = "{$production_id}-{$photo_id}-{$timestamp}.{$ext}";
    $filepath = __DIR__ . "/photos/" . $filename;

    if (!move_uploaded_file($_FILES['photo']['tmp_name'], $filepath)) {
        throw new Exception("Errore salvataggio file");
    }

    // aggiorna filename completo
    $pdo->prepare("
        UPDATE production_photos SET filename = ? WHERE id = ?
    ")->execute([$filename, $photo_id]);

    echo json_encode(["success" => true]);
} catch (Exception $e) {
    echo json_encode([
        "success" => false,
        "message" => $e->getMessage()
    ]);
}