$(document).ready(function () {
    $(".select2").select2({
        placeholder: "Pilih...",
        allowClear: true,
    });

    // Fungsi untuk mengambil data stok
    function fetchStockData() {
        const dealerId = $("#dealer").val();
        if (!dealerId) return;

        const productIds = $(".product-select")
            .map(function () {
                return $(this).val();
            })
            .get()
            .filter((id) => id !== "");

        if (productIds.length === 0) return;

        $.ajax({
            url: "/warehouse/opnames/get-stock-data",
            method: "POST",
            data: {
                _token: $('meta[name="csrf-token"]').attr("content"),
                dealer_id: dealerId,
                product_ids: productIds,
            },
            success: function (response) {
                if (response.stocks) {
                    $(".product-row").each(function () {
                        const productId = $(this).find(".product-select").val();
                        const systemQtyInput = $(this).find(".system-quantity");
                        const physicalQtyInput = $(this).find(
                            'input[name^="physical_quantity"]'
                        );

                        // Simpan nilai physical quantity yang sudah ada
                        const currentPhysicalQty = physicalQtyInput.val();

                        if (
                            productId &&
                            response.stocks[productId] !== undefined
                        ) {
                            systemQtyInput.val(response.stocks[productId]);
                            // Kembalikan nilai physical quantity jika ada
                            if (currentPhysicalQty) {
                                physicalQtyInput.val(currentPhysicalQty);
                            }
                            calculateDifference(systemQtyInput[0]);
                        } else {
                            systemQtyInput.val("0");
                            calculateDifference(systemQtyInput[0]);
                        }
                    });
                }
            },
            error: function (xhr) {
                console.error("Error fetching stock data:", xhr.responseText);
            },
        });
    }

    // Update stok saat dealer berubah
    $("#dealer").change(function () {
        fetchStockData();
    });

    // Update stok saat produk berubah
    $(document).on("change", ".product-select", function () {
        const row = $(this).closest("tr");
        const productId = $(this).val();
        const systemQtyInput = row.find(".system-quantity");
        const physicalQtyInput = row.find('input[name^="physical_quantity"]');

        // Simpan nilai physical quantity yang sudah ada
        const currentPhysicalQty = physicalQtyInput.val();

        if (productId) {
            fetchStockData();
        } else {
            systemQtyInput.val("0");
            // Kembalikan nilai physical quantity jika ada
            if (currentPhysicalQty) {
                physicalQtyInput.val(currentPhysicalQty);
            }
            calculateDifference(systemQtyInput[0]);
        }
    });

    // Fungsi untuk menambah baris produk
    $("#btn-add-row").click(function () {
        const template = document.getElementById("product-row-template");
        const tbody = $("#product-table tbody");
        const newRow = template.content.cloneNode(true);
        const rowIndex = $(".product-row").length;

        // Update name attributes with correct index
        $(newRow)
            .find('select[name="product[]"]')
            .attr("name", `product[${rowIndex}]`);
        $(newRow)
            .find('input[name="system_quantity[]"]')
            .attr("name", `system_quantity[${rowIndex}]`);
        $(newRow)
            .find('input[name="physical_quantity[]"]')
            .attr("name", `physical_quantity[${rowIndex}]`);
        $(newRow)
            .find('input[name="item_notes[]"]')
            .attr("name", `item_notes[${rowIndex}]`);

        // Add system-quantity class dan pastikan readonly
        const systemQtyInput = $(newRow).find(
            'input[name="system_quantity[]"]'
        );
        systemQtyInput
            .addClass("system-quantity")
            .attr("readonly", true)
            .val("0");

        // Reset semua nilai input di baris baru kecuali system quantity
        $(newRow).find("select").val("");
        $(newRow).find("input:not(.system-quantity)").val("");

        tbody.append(newRow);
        updateRemoveButtons();
    });

    // Fungsi untuk menghapus baris produk
    $(document).on("click", ".btn-remove-row", function () {
        $(this).closest("tr").remove();
        updateRemoveButtons();
        // Reindex semua baris setelah penghapusan
        reindexRows();
    });

    // Fungsi untuk update status tombol hapus
    function updateRemoveButtons() {
        const rows = $(".product-row").length;
        $(".btn-remove-row").prop("disabled", rows <= 1);
    }

    // Fungsi untuk reindex semua baris
    function reindexRows() {
        $(".product-row").each(function (index) {
            $(this)
                .find('select[name^="product"]')
                .attr("name", `product[${index}]`);
            $(this)
                .find('input[name^="system_quantity"]')
                .attr("name", `system_quantity[${index}]`);
            $(this)
                .find('input[name^="physical_quantity"]')
                .attr("name", `physical_quantity[${index}]`);
            $(this)
                .find('input[name^="item_notes"]')
                .attr("name", `item_notes[${index}]`);
        });
    }

    // Update calculateDifference function
    function calculateDifference(input) {
        const row = $(input).closest("tr");
        const systemQty = parseFloat(row.find(".system-quantity").val()) || 0;
        const physicalQty =
            parseFloat(row.find('input[name^="physical_quantity"]').val()) || 0;
        const noteInput = row.find('input[name^="item_notes"]');

        if (Math.abs(systemQty - physicalQty) > 0.01) {
            noteInput.addClass("is-invalid");
            noteInput.attr("required", true);
            noteInput.attr(
                "placeholder",
                "Catatan wajib diisi karena ada perbedaan stock"
            );
            row.addClass("table-warning");
        } else {
            noteInput.removeClass("is-invalid");
            noteInput.removeAttr("required");
            noteInput.attr("placeholder", "Catatan item");
            row.removeClass("table-warning");
        }
    }

    // Prevent manual editing of system quantity
    $(document).on("keydown", ".system-quantity", function (e) {
        e.preventDefault();
        return false;
    });

    $(document).on("paste", ".system-quantity", function (e) {
        e.preventDefault();
        return false;
    });

    // Validasi form sebelum submit
    $("#opname-form").submit(function (e) {
        const dealerId = $("#dealer").val();
        if (!dealerId) {
            e.preventDefault();
            alert("Silakan pilih dealer terlebih dahulu!");
            return false;
        }

        const products = $('select[name^="product"]')
            .map(function () {
                return $(this).val();
            })
            .get();

        // Cek duplikasi produk
        const uniqueProducts = [...new Set(products)];
        if (products.length !== uniqueProducts.length) {
            e.preventDefault();
            alert("Produk tidak boleh duplikat!");
            return false;
        }

        // Cek produk kosong
        if (products.includes("")) {
            e.preventDefault();
            alert("Semua produk harus dipilih!");
            return false;
        }

        // Cek catatan untuk perbedaan stock
        let hasInvalidNotes = false;
        $(".product-row").each(function () {
            const systemQty =
                parseFloat(
                    $(this).find('input[name^="system_quantity"]').val()
                ) || 0;
            const physicalQty =
                parseFloat(
                    $(this).find('input[name^="physical_quantity"]').val()
                ) || 0;
            const note = $(this).find('input[name^="item_notes"]').val();

            if (Math.abs(systemQty - physicalQty) > 0.01 && !note) {
                hasInvalidNotes = true;
                $(this).addClass("table-danger");
            }
        });

        if (hasInvalidNotes) {
            e.preventDefault();
            alert(
                "Catatan wajib diisi untuk produk yang memiliki perbedaan stock!"
            );
            return false;
        }
    });

    // Initial stock data load if dealer is selected
    if ($("#dealer").val()) {
        fetchStockData();
    }
});