const typeSelect = document.querySelector("select[name=type]");
const partSelect = document.querySelector("select[name=part_uid]");
const amountInput = document.querySelector("input[name=amount]");

// type 선택 시 part_uid 옵션 필터링
typeSelect.addEventListener("change", function () {
    let selectedType = this.value;

    for (let option of partSelect.options) {
        if (option.value === "") {
            option.style.display = ""; // "부품정보 선택"은 항상 표시
            continue;
        }
        if (!selectedType || option.dataset.type === selectedType) {
            option.style.display = "";
        } else {
            option.style.display = "none";
        }
    }

    // 선택 초기화
    partSelect.value = "";
    amountInput.value = "";
});

// part_uid 선택 시 amount 자동 반영
partSelect.addEventListener("change", function () {
    let selectedOption = this.options[this.selectedIndex];
    let price = selectedOption.getAttribute("data-price") || "";
    amountInput.value = price;
});