<?php
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
    header("Access-Control-Allow-Origin: *");
    header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS");
    header("Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With");
    http_response_code(204);
    exit;
}

header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE");
header("Access-Control-Allow-Headers: Content-Type, Authorization");

error_reporting(E_ALL);
ini_set('display_errors', 0);
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/logs/error.log');

require __DIR__ . '/vendor/autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\PrintConnectors\WindowsPrintConnector;

// Helper functions
function printLinea($printer, $char = "-", $width = 48) {
    $printer->text(str_repeat($char, $width) . "\n");
}

function cutString($text, $maxLength) {
    return substr($text, 0, $maxLength);
}

function printAlignedText($printer, $leftText, $rightText, $width = 48) {
    $rightLen = strlen($rightText);
    $leftLen = $width - $rightLen;
    $leftPadded = str_pad($leftText, $leftLen, " ", STR_PAD_RIGHT);
    $printer->text($leftPadded . $rightText . "\n");
}

// Get data from POST
$dataPrint = null;
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST["dataPrint"])) {
    $dataPrint = json_decode($_POST["dataPrint"]);
}

if ($dataPrint) {
    $PRINTER_NAME = $dataPrint->printer ?? 'POS-80C';
    
    try {
        $connector = new WindowsPrintConnector($PRINTER_NAME);
        $printer = new Printer($connector);
        
        // COMPANY HEADER
        $printer->setJustification(Printer::JUSTIFY_CENTER);
        $printer->setTextSize(2, 2);
        $printer->text(cutString(strtoupper($dataPrint->nombre_empresa), 24) . "\n");
        
        $printer->setTextSize(1, 1);
        //$printer->text(cutString(strtoupper($dataPrint->giro_empresa ?? ''), 48) . "\n");
        //$printer->text(cutString(strtoupper($dataPrint->direcion_empresa), 48) . "\n");
        //$printer->text(cutString(strtoupper($dataPrint->rsocial_empresa), 48) . "\n");
        //$printer->text("NRC: " . $dataPrint->nrc_empresa . " - NIT: " . $dataPrint->nit_empresa . "\n");
        
        printLinea($printer);
        
        // DOCUMENT INFO
        $printer->setJustification(Printer::JUSTIFY_LEFT);
        printAlignedText($printer, "Fecha: " . $dataPrint->fecha, "Caja: " . $dataPrint->caja);
        printAlignedText($printer, "Vendedor: " . $dataPrint->vendedor, "Cajero: " . $dataPrint->cajero);
        
        $printer->setJustification(Printer::JUSTIFY_CENTER);
        $printer->setEmphasis(true);
        $printer->text("RECIBO\n");
        $printer->text("No. " . $dataPrint->doc_numero . "\n");
        $printer->setEmphasis(false);
        
        printLinea($printer);
        
        // CUSTOMER INFO
        if (isset($dataPrint->cliente) && $dataPrint->cliente != "") {
            $printer->setJustification(Printer::JUSTIFY_LEFT);
            $printer->text("Cliente: " . $dataPrint->cliente . "\n");
            if (isset($dataPrint->direccion_cliente) && $dataPrint->direccion_cliente != "") {
                $printer->text("Direccion: " . $dataPrint->direccion_cliente . "\n");
            }
            printLinea($printer);
        }
        
        // PRODUCTS TABLE
        $printer->setJustification(Printer::JUSTIFY_LEFT);
        $printer->setEmphasis(true);
        $printer->text("CANT  DESCRIPCION               PRECIO  TOTAL\n");
        printLinea($printer);
        $printer->setEmphasis(false);
        
        foreach ($dataPrint->productos_normal as $producto) {
            $cantidad = str_pad(number_format($producto->cant, 2), 5, " ", STR_PAD_RIGHT);
            $precio = str_pad(number_format($producto->costo, 2), 7, " ", STR_PAD_LEFT);
            $total = str_pad(number_format($producto->costo * $producto->cant, 2), 7, " ", STR_PAD_LEFT);
            
            $descripcion = wordwrap(strtoupper($producto->desc), 23, "\n", true);
            $lineasDescripcion = explode("\n", $descripcion);
            
            $printer->text("$cantidad " . str_pad($lineasDescripcion[0], 23, " ") . " $precio $total\n");
            
            for ($i = 1; $i < count($lineasDescripcion); $i++) {
                $printer->text("      " . $lineasDescripcion[$i] . "\n");
            }
        }
        
        printLinea($printer);
        
        // TOTALS
        $printer->setJustification(Printer::JUSTIFY_RIGHT);
        $printer->setEmphasis(true);
        $printer->setTextSize(1, 2);
        $printer->text("TOTAL $" . number_format($dataPrint->totales->totalTotal, 2) . "\n");
        $printer->setTextSize(1, 1);
        $printer->setEmphasis(false);
        
        $printer->text("EFECTIVO $" . number_format($dataPrint->efectivo, 2) . "\n");
        
        if (isset($dataPrint->pos) && floatval($dataPrint->pos) > 0) {
            $printer->text("POS $" . number_format($dataPrint->pos, 2) . "\n");
        }
        
        $printer->setJustification(Printer::JUSTIFY_LEFT);
        printAlignedText($printer, "REF.: " . $dataPrint->referencia, "CAMBIO $" . number_format($dataPrint->cambio, 2));
        
        printLinea($printer);
        
        // NOTES
        if (isset($dataPrint->notas) && $dataPrint->notas != "") {
            $printer->setJustification(Printer::JUSTIFY_LEFT);
            $printer->text("Notas: " . $dataPrint->notas . "\n");
            printLinea($printer);
        }
        
        // FINAL MESSAGE
        $printer->setJustification(Printer::JUSTIFY_CENTER);
        $printer->text("\n");
        
        if (isset($dataPrint->mensaje_ticket) && $dataPrint->mensaje_ticket != "") {
            $mensajeLines = wordwrap($dataPrint->mensaje_ticket, 48, "\n", true);
            foreach (explode("\n", $mensajeLines) as $linea) {
                $printer->text($linea . "\n");
            }
        }
        
        // FINISH
        $printer->feed(2);
        $printer->cut();
        $printer->close();
        
        echo json_encode([
            "status" => "success",
            "message" => "Recibo impreso correctamente."
        ]);
        
    } catch (Exception $e) {
        echo json_encode([
            "status" => "error",
            "message" => "Error al imprimir: " . $e->getMessage()
        ]);
    }
} else {
    echo json_encode([
        "status" => "error",
        "message" => "No se recibieron datos para imprimir."
    ]);
}
?>