gruene-seele/resources/views/admin/inventory/stock-entries/_scripts.blade.php

<script>
    (function ($) {
        function toggleBlocks() {
            var t = $('#entry_type').val();
            var isIng = t === 'ingredient';
            $('#stock-entry-ingredient-block').toggle(isIng);
            $('#stock-entry-quality-block').toggle(isIng);
            $('#stock-entry-packaging-block').toggle(!isIng);
            $('#price-per-kg-block').toggle(isIng);
            $('#price-total-block').toggle(!isIng);
        }

        function initIngredientSelect2() {
            var $el = $('#ingredient_id');
            if ($el.data('select2')) {
                $el.select2('destroy');
            }
            $el.select2({
                theme: 'default',
                width: '100%',
                placeholder: '{{ __('Inhaltsstoff suchen…') }}',
                allowClear: true,
                ajax: {
                    url: $el.data('search-url'),
                    dataType: 'json',
                    delay: 250,
                    data: function (params) {
                        return {q: params.term || ''};
                    },
                    processResults: function (data) {
                        return {results: data.results || []};
                    },
                    cache: true
                },
                minimumInputLength: 1
            });
        }

        function initPackagingSelect2() {
            var $el = $('#packaging_item_id');
            if ($el.data('select2')) {
                $el.select2('destroy');
            }
            $el.select2({
                theme: 'default',
                width: '100%',
                placeholder: '{{ __('Verpackungsartikel suchen…') }}',
                allowClear: true,
                ajax: {
                    url: $el.data('search-url'),
                    dataType: 'json',
                    delay: 250,
                    data: function (params) {
                        return {
                            q: params.term || '',
                            entry_type: $('#entry_type').val()
                        };
                    },
                    processResults: function (data) {
                        return {results: data.results || []};
                    },
                    cache: true
                },
                minimumInputLength: 0
            });
        }

        function parseNumber(value) {
            if (value === null || value === undefined) {
                return null;
            }
            var normalized = String(value).trim().replace(/\./g, '').replace(',', '.');
            if (normalized === '' || isNaN(normalized)) {
                return null;
            }
            return parseFloat(normalized);
        }

        function formatNumber(value) {
            return value.toFixed(2).replace('.', ',');
        }

        function currentFactor() {
            var percent = parseFloat($('#tax_rate_id option:selected').data('percent')) || 0;
            return 1 + percent / 100;
        }

        function recalcFromNet() {
            var net = parseNumber($('#price_per_kg').val());
            if (net === null) {
                return;
            }
            $('#price_per_kg_gross').val(formatNumber(net * currentFactor()));
        }

        function recalcFromGross() {
            var gross = parseNumber($('#price_per_kg_gross').val());
            if (gross === null) {
                return;
            }
            var factor = currentFactor();
            $('#price_per_kg').val(formatNumber(factor > 0 ? gross / factor : gross));
        }

        $(document).ready(function () {
            toggleBlocks();
            initIngredientSelect2();
            initPackagingSelect2();

            $('#entry_type').on('change', function () {
                toggleBlocks();
                $('#packaging_item_id').val(null).trigger('change');
                initPackagingSelect2();
            });

            $('#price_per_kg').on('input', recalcFromNet);
            $('#price_per_kg_gross').on('input', recalcFromGross);
            $('#tax_rate_id').on('change', function () {
                if (parseNumber($('#price_per_kg').val()) !== null) {
                    recalcFromNet();
                } else {
                    recalcFromGross();
                }
            });
        });
    })(jQuery);
</script>