<?php

require_once __DIR__ . "/../../vendor/autoload.php";

use Spatie\PdfToText\Pdf;

// ---------------------------------------------------------
// 1) Percorso PDF
// ---------------------------------------------------------
$pdfFile = __DIR__ . "/listino.pdf";

if (!file_exists($pdfFile)) {
    die(json_encode(["error" => "PDF non trovato: $pdfFile"]));
}

// ---------------------------------------------------------
// 2) Estrazione testo usando Poppler
// ---------------------------------------------------------
$poppler = 'C:\poppler\Library\bin\pdftotext.exe';

try {
    $text = Pdf::getText($pdfFile, $poppler);
} catch (Exception $e) {
    die(json_encode(["error" => $e->getMessage()]));
}

// ---------------------------------------------------------
// 3) Normalizzazione
// ---------------------------------------------------------
$text = preg_replace('/[ ]{2,}/', ' ', $text);
$text = str_replace("\t", " ", $text);

// ---------------------------------------------------------
// 4) REGEX PER IL LISTINO CASSINA
// ---------------------------------------------------------
$regex = '/(\d{3}\s+\d{2,3}\s*[A-Z]?)\s+([^0-9]+?)\s+((?:\d{1,2}[.,]\d{2,3}\s+)+)/';

preg_match_all($regex, $text, $matches, PREG_SET_ORDER);

$results = [];

foreach ($matches as $m) {

    $codice = trim($m[1]);
    $descr  = trim($m[2]);
    $priceChunk = trim($m[3]);

    // Trova tutti i prezzi
    preg_match_all('/\d{1,2}[.,]\d{2,3}/', $priceChunk, $nums);

    foreach ($nums[0] as $i => $val) {

        // 10,80 → 10.80
        $val = str_replace(',', '.', $val);

        $results[] = [
            "codice" => $codice,
            "descrizione" => $descr,
            "colonna" => "COL_" . ($i + 1),
            "prezzo" => floatval($val)
        ];
    }
}

// ---------------------------------------------------------
// 5) Output JSON
// ---------------------------------------------------------
header("Content-Type: application/json");

echo json_encode([
    "items" => count($results),
    "data"  => $results
], JSON_PRETTY_PRINT);