<?php
error_reporting(E_ALL ^ E_NOTICE);

// Encabezados HTTP
header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE");
header("Content-Type: application/json; charset=utf-8");

include_once '../conexion.php';

try {
    // Obtener y decodificar el cuerpo JSON
    $bodyRequest = file_get_contents("php://input");
    $datos = json_decode($bodyRequest, true);

    if (!isset($datos[0], $datos[1])) {
        throw new Exception("Parámetros insuficientes.");
    }

    $empresa_id = (int) $datos[0];
    $cuenta_id = (int) $datos[1];

    $sql = "SELECT SUM(ingreso - egreso) AS SaldoCaja 
            FROM detcaja 
            WHERE empresa_id = :empresa_id 
              AND cuenta_id = :cuenta_id 
              AND anulado = 0";

    $stmt = $conn->prepare($sql);
    $stmt->bindParam(':empresa_id', $empresa_id, PDO::PARAM_INT);
    $stmt->bindParam(':cuenta_id', $cuenta_id, PDO::PARAM_INT);
    $stmt->execute();

    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

    print_json($rows);

} catch (Exception $e) {
    error_response("Error: " . $e->getMessage());
} finally {
    $conn = null;
}

// Función para imprimir JSON y manejar errores
function print_json($data) {
    echo json_encode($data, JSON_UNESCAPED_UNICODE);

    switch (json_last_error()) {
        case JSON_ERROR_NONE: break;
        case JSON_ERROR_DEPTH: error_response('Maximum stack depth exceeded'); break;
        case JSON_ERROR_STATE_MISMATCH: error_response('Underflow or the modes mismatch'); break;
        case JSON_ERROR_CTRL_CHAR: error_response('Unexpected control character found'); break;
        case JSON_ERROR_SYNTAX: error_response('Syntax error, malformed JSON'); break;
        case JSON_ERROR_UTF8: error_response('Malformed UTF-8 characters, possibly incorrectly encoded'); break;
        default: error_response('Unknown error'); break;
    }
}

function error_response($message) {
    http_response_code(500);
    echo json_encode(['error' => $message], JSON_UNESCAPED_UNICODE);
    exit();
}
?>
