<?php
header("Content-Type: application/json; charset=utf-8");

/******************************************************
 * CONFIG
 ******************************************************/
$apiKey    = "info@claudiosironi.com_Qfh02D7sAvi2tcx3ZchHpusNaBquCKhJw81fEnkHe2ersQDVOex4IokhCCzaFAz1";
$fileToken = "filetoken://61a780917907f86a340290d22c449357dc68950e9066bd67b2";

// Se passi ?token=xxx usa quello
if (!empty($_GET['token'])) {
    $fileToken = $_GET['token'];
}

/******************************************************
 * 1) ESTRAGGO CSV (solo pagine con tabelle vere)
 ******************************************************/
$endpointCsv = "https://api.pdf.co/v1/pdf/convert/to/csv";

$payloadCsv = [
    "url"              => $fileToken,
    "inline"           => true,
    "detectTables"     => true,
    "pages"            => "all",
    "extractColumnBy"  => "vertical_lines",
    "csvSeparator"     => ";"
];

$ch = curl_init($endpointCsv);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Content-Type: application/json",
    "x-api-key: $apiKey"
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payloadCsv));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$csvResponse = curl_exec($ch);
curl_close($ch);

$csvJson = json_decode($csvResponse, true);

/******************************************************
 * 2) ESTRAGGO ANCHE TESTO (per pagine NON tabellari)
 ******************************************************/
$endpointText = "https://api.pdf.co/v1/pdf/convert/to/text";

$payloadText = [
    "url"    => $fileToken,
    "inline" => true,
    "pages"  => "all"
];

$ch = curl_init($endpointText);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Content-Type: application/json",
    "x-api-key: $apiKey"
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payloadText));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$textResponse = curl_exec($ch);
curl_close($ch);

$textJson = json_decode($textResponse, true);

/******************************************************
 * 3) PARSER CSV → TABELLE FORMATO A
 ******************************************************/
$formatoA = [];

if (isset($csvJson["csv"])) {
    $rows = explode("\n", $csvJson["csv"]);

    foreach ($rows as $r) {
        $cols = str_getcsv($r, ";");

        if (count($cols) < 2) continue;
        if (!preg_match('/^\d{3}\s+[0-9A-Z]{2,3}$/', trim($cols[0]))) continue;

        $formatoA[] = [
            "codice" => trim($cols[0]),
            "descrizione" => trim($cols[1]),
            "prezzi" => array_map(fn($x) => is_numeric(str_replace(",", ".", $x))
                ? floatval(str_replace(",", ".", $x))
                : null, array_slice($cols, 2))
        ];
    }
}

/******************************************************
 * 4) PARSER TESTUALE → FORMATO B (pagina tipo 499…)
 ******************************************************/
$formatoB = [];

if (isset($textJson["body"])) {

    $text = $textJson["body"];

    // pattern codice tipo “499 3A 14”
    $codeRegex = '/\b(\d{3}\s+[A-Z0-9]{1,2}\s+\d{2})\b/';

    // pattern prezzo “5.475” o “5475” o “6.085”
    $priceRegex = '/\b\d{1,2}\.?\d{3}\b/';

    // Cerca combinazioni CODICE + PREZZO ripetute sulla stessa riga
    $linee = explode("\n", $text);

    foreach ($linee as $line) {

        if (!preg_match_all($codeRegex, $line, $codici)) continue;
        if (!preg_match_all($priceRegex, $line, $prezzi)) continue;

        $codici   = $codici[1];
        $prezzi   = $prezzi[0];

        // Se quantità corrispondono → coppie 1:1
        if (count($codici) == count($prezzi)) {
            for ($i = 0; $i < count($codici); $i++) {
                $formatoB[] = [
                    "codice" => $codici[$i],
                    "prezzo" => floatval(str_replace(".", "", $prezzi[$i]))
                ];
            }
        }
    }
}

/******************************************************
 * 5) OUTPUT
 ******************************************************/
echo json_encode([
    "status"    => "ok",
    "formatoA"  => $formatoA,
    "formatoB"  => $formatoB,
], JSON_PRETTY_PRINT);