@page
@model DiwanRazor.Areas.Admin.Pages.RolesModel
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@{
    Layout = "_AdminLayout";
    ViewData["Title"] = "مدیریت نقش‌ها";
}

<div class="up-page-header">
    <h1>@ViewData["Title"]</h1>
</div>

@if (!string.IsNullOrEmpty(Model.LastError))
{
    <div class="up-alert up-alert--danger">@Model.LastError</div>
}

<div class="up-card">
    <h2 class="up-card__title">نقش جدید</h2>
    <div class="up-form-actions">
        <input type="text" id="new-role-name" placeholder="نام نقش" style="flex:1;" />
        <input type="text" id="new-role-description" placeholder="توضیحات" style="flex:1;" />
        <a role="button" onclick="createRole()" class="up-btn up-btn--success">➕ ایجاد</a>
    </div>
</div>

<script>
    function createRole() {
        var name = document.getElementById('new-role-name').value.trim();
        var description = document.getElementById('new-role-description').value.trim();
        if (name === '') {
            upToast('نام نقش خالی است.', 'error');
            return;
        }
        $.ajax({
            type: "POST",
            url: '?handler=NewRole',
            data: { name: name, description: description },
            error: function (e) {
                upToast(e.responseText || String(e), 'error');
            },
            success: function () {
                location.reload(true);
            }
        });
    }

    async function deleteRole(roleName) {
        var ok = await upConfirm('آیا از حذف نقش «' + roleName + '» اطمینان دارید؟');
        if (!ok) return;

        $.ajax({
            type: "DELETE",
            url: '?handler=Role',
            data: { roleName: roleName },
            error: function (e) {
                upToast(e.responseText || String(e), 'error');
            },
            success: function () {
                var row = document.getElementById('tr-role-' + roleName);
                row.parentNode.removeChild(row);
            }
        });
    }

    function toggleRolePermissions(roleName) {
        var row = document.getElementById('perm-row-' + roleName);
        if (row.style.display === 'none' || row.style.display === '') {
            row.style.display = 'table-row';
            loadRolePermissions(roleName);
        } else {
            row.style.display = 'none';
        }
    }

    function loadRolePermissions(roleName) {
        var container = document.getElementById('perm-container-' + roleName);
        container.innerHTML = 'در حال بارگذاری...';
        $.ajax({
            type: "GET",
            url: '?handler=Permissions&roleName=' + encodeURIComponent(roleName),
            error: function (e) {
                upToast(e.responseText || String(e), 'error');
            },
            success: function (items) {
                renderPermissionTree(roleName, items);
            }
        });
    }

    function renderPermissionTree(roleName, items) {
        var container = document.getElementById('perm-container-' + roleName);
        container.innerHTML = '';

        var tree = document.createElement('div');
        tree.className = 'up-perm-tree';

        items.forEach(function (item, itemIndex) {
            var itemRow = document.createElement('div');
            itemRow.className = 'up-perm-tree__item';

            var itemLabel = document.createElement('strong');
            itemLabel.textContent = item.description;
            itemRow.appendChild(itemLabel);
            tree.appendChild(itemRow);

            var opsWrap = document.createElement('div');
            opsWrap.className = 'up-perm-tree__ops';
            item.operations.forEach(function (op, opIndex) {
                var opLabel = document.createElement('label');
                opLabel.className = 'up-check-row';
                var cb = document.createElement('input');
                cb.type = 'checkbox';
                cb.checked = op.status;
                cb.dataset.itemIndex = itemIndex;
                cb.dataset.opIndex = opIndex;
                opLabel.appendChild(cb);
                opLabel.appendChild(document.createTextNode(op.description));
                opsWrap.appendChild(opLabel);
            });
            tree.appendChild(opsWrap);
        });

        container.appendChild(tree);

        var saveBtn = document.createElement('a');
        saveBtn.setAttribute('role', 'button');
        saveBtn.className = 'up-btn up-btn--success';
        saveBtn.textContent = '💾 ذخیرهٔ دسترسی‌ها';
        saveBtn.onclick = function () { saveRolePermissions(roleName, items, tree); };
        container.appendChild(saveBtn);
    }

    function saveRolePermissions(roleName, items, tree) {
        tree.querySelectorAll('input[type=checkbox]').forEach(function (cb) {
            items[cb.dataset.itemIndex].operations[cb.dataset.opIndex].status = cb.checked;
        });

        $.ajax({
            type: "PUT",
            url: '?handler=Permissions&roleName=' + encodeURIComponent(roleName),
            contentType: "application/json",
            data: JSON.stringify(items),
            error: function (e) {
                upToast(e.responseText || String(e), 'error');
            },
            success: function () {
                upToast('دسترسی‌های نقش ذخیره شد.');
            }
        });
    }
</script>

@if (Model.Roles != null && Model.Roles.Length > 0)
{
    <table>
        <tr>
            <th>نام</th>
            <th>توضیحات</th>
            <th>#</th>
        </tr>
        @foreach (var role in Model.Roles)
        {
            <tr id="tr-role-@role.Name">
                <td>@role.Name</td>
                <td>@role.Description</td>
                <td>
                    <a role="button" onclick="toggleRolePermissions('@role.Name')" class="up-icon-btn" title="دسترسی‌ها" aria-label="مدیریت دسترسی‌های این نقش">🔑</a>
                    <a role="button" onclick="deleteRole('@role.Name')" class="up-icon-btn" title="حذف" aria-label="حذف این نقش">🗑</a>
                </td>
            </tr>
            <tr id="perm-row-@role.Name" style="display:none">
                <td colspan="3">
                    <div id="perm-container-@role.Name"></div>
                </td>
            </tr>
        }
    </table>
}
else
{
    <partial name="_EmptyState" model="@("نقشی تعریف نشده است.")" />
}