ANTOOZA-BACKEND/Admin/Pages/Store/Coupon/Write.cshtml

@page
@model Admin.Pages.Store.Coupon.WriteModel
@using Domain.Entities.Store.ValueObject
@{
    ViewData["Title"] = "쿠폰 등록";
}

<div class="container">
    <h3>@ViewData["Title"]</h3>
    <hr />

    <partial name="_StatusMessage" />

    <div class="alert alert-info">
        쿠폰 등록 후 <strong>코드 풀</strong> 화면에서 CSV 파일로 실제 코드를 업로드해주세요.<br />
        쿠폰 상품에만 쿠폰 발급 가능합니다.
    </div>

    <form name="f_admin_write" id="fAdminWrite" method="post" accept-charset="utf-8" autocomplete="off">
        <div class="row mb-2">
            <label asp-for="Input.GameID" class="col-sm-2 col-form-label"><span>*</span> 게임</label>
            <div class="col-sm-10">
                <select asp-for="Input.GameID" asp-items="Model.Games" id="couponGameID" class="form-select" required>
                    <option value="">게임을 선택하세요</option>
                </select>
                <span asp-validation-for="Input.GameID" class="text-danger"></span>
            </div>
        </div>
        <div class="row mb-2">
            <label asp-for="Input.ProductID" class="col-sm-2 col-form-label"><span>*</span> 쿠폰 상품</label>
            <div class="col-sm-10">
                <select asp-for="Input.ProductID" id="couponProductID" class="form-select" required>
                    <option value="">게임을 먼저 선택하세요</option>
                </select>
                <span asp-validation-for="Input.ProductID" class="text-danger"></span>
            </div>
        </div>
        <div class="row mb-2">
            <label asp-for="Input.Name" class="col-sm-2 col-form-label"><span>*</span> 쿠폰명</label>
            <div class="col-sm-10">
                <input asp-for="Input.Name" class="form-control" required maxlength="200" placeholder="예) LOL RP 충전 쿠폰 1만원권 (200자 이내)" />
                <span asp-validation-for="Input.Name" class="text-danger"></span>
            </div>
        </div>

        <hr />

        <div class="row mb-2">
            <label asp-for="Input.UsagePolicy" class="col-sm-2 col-form-label">사용 정책</label>
            <div class="col-sm-10 align-content-center">
                <div class="form-check-inline">
                    <input asp-for="Input.UsagePolicy" type="radio" id="usageSingle" class="form-check-input" value="@CouponUsagePolicy.SingleUse" />
                    <label class="form-check-label" for="usageSingle">1회 사용 후 소진</label>
                </div>
                <div class="form-check-inline">
                    <input asp-for="Input.UsagePolicy" type="radio" id="usageReusable" class="form-check-input" value="@CouponUsagePolicy.Reusable" />
                    <label class="form-check-label" for="usageReusable">재사용 가능</label>
                </div>
            </div>
        </div>
        <div class="row mb-2">
            <label asp-for="Input.ExpiresAt" class="col-sm-2 col-form-label">만료 일시</label>
            <div class="col-sm-10">
                <input asp-for="Input.ExpiresAt" class="form-control w-auto" type="datetime-local" />
                <small class="form-text text-muted">비워두면 만료 없음</small>
            </div>
        </div>
        <div class="row mb-2">
            <label asp-for="Input.LowStockThreshold" class="col-sm-2 col-form-label">재고 알림 임계치</label>
            <div class="col-sm-10">
                <div class="row">
                    <div class="col col-md-auto">
                        <div class="input-group">
                            <input asp-for="Input.LowStockThreshold" class="form-control" type="number" min="0" />
                            <span class="input-group-text">개</span>
                        </div>
                    </div>
                </div>
                <small class="form-text text-muted">잔여 코드 수가 이 값 미만이면 목록에서 빨간색 표시</small>
                <span asp-validation-for="Input.LowStockThreshold" class="text-danger"></span>
            </div>
        </div>

        <hr />

        <div class="d-grid gap-2 text-center d-md-block">
            <button type="submit" class="btn btn-success">등록</button>
            <a href="/Store/Coupon" class="btn btn-secondary">취소</a>
        </div>
        <br />
    </form>
</div>

@section Scripts {
    <partial name="_ValidationScriptsPartial" />
    <script>
        var allProducts = @Html.Raw(System.Text.Json.JsonSerializer.Serialize(Model.Products.Select(p => new { id = p.ID, gameID = p.GameID, name = p.Name })));

        function refreshProducts() {
            var gameID = parseInt(document.getElementById("couponGameID").value) || 0;
            var sel = document.getElementById("couponProductID");
            sel.innerHTML = "";

            if (gameID === 0) {
                sel.innerHTML = '<option value="">게임을 먼저 선택하세요</option>';
                return;
            }

            var filtered = allProducts.filter(function(p) { return p.gameID === gameID; });
            if (filtered.length === 0) {
                sel.innerHTML = '<option value="">해당 게임의 쿠폰 상품이 없습니다</option>';
                return;
            }

            sel.innerHTML = '<option value="">상품을 선택하세요</option>';
            filtered.forEach(function(p) {
                var opt = document.createElement("option");
                opt.value = p.id;
                opt.textContent = p.name;
                sel.appendChild(opt);
            });
        }

        document.getElementById("couponGameID").addEventListener("change", refreshProducts);
        refreshProducts();
    </script>
}