CutList/CutList.Web/Components/Pages/Suppliers/Index.razor

@page "/suppliers"
@inject SupplierService SupplierService
@inject NavigationManager Navigation

<PageTitle>Suppliers</PageTitle>

<div class="d-flex justify-content-between align-items-center mb-3">
    <h1>Suppliers</h1>
    <a href="suppliers/new" class="btn btn-primary">Add Supplier</a>
</div>

@if (loading)
{
    <p><em>Loading...</em></p>
}
else if (suppliers.Count == 0)
{
    <div class="alert alert-info">
        No suppliers found. <a href="suppliers/new">Add your first supplier</a>.
    </div>
}
else
{
    <table class="table table-striped table-hover">
        <thead>
            <tr>
                <th>Name</th>
                <th>Contact Info</th>
                <th>Notes</th>
                <th style="width: 160px;">Actions</th>
            </tr>
        </thead>
        <tbody>
            @foreach (var supplier in pagedSuppliers)
            {
                <tr>
                    <td><a href="suppliers/@supplier.Id">@supplier.Name</a></td>
                    <td>@supplier.ContactInfo</td>
                    <td>@TruncateText(supplier.Notes, 50)</td>
                    <td>
                        <div class="d-flex gap-1">
                            <a href="suppliers/@supplier.Id" class="btn btn-sm btn-outline-primary">Edit</a>
                            <button class="btn btn-sm btn-outline-danger" @onclick="() => ConfirmDelete(supplier)">Delete</button>
                        </div>
                    </td>
                </tr>
            }
        </tbody>
    </table>

    <Pager TotalCount="suppliers.Count" PageSize="pageSize" CurrentPage="currentPage" CurrentPageChanged="OnPageChanged" />
}

<ConfirmDialog @ref="deleteDialog"
               Title="Delete Supplier"
               Message="@deleteMessage"
               ConfirmText="Delete"
               OnConfirm="DeleteConfirmed" />

@code {
    private List<Supplier> suppliers = new();
    private bool loading = true;
    private int currentPage = 1;
    private int pageSize = 25;
    private ConfirmDialog deleteDialog = null!;
    private Supplier? supplierToDelete;
    private string deleteMessage = "";

    private IEnumerable<Supplier> pagedSuppliers => suppliers.Skip((currentPage - 1) * pageSize).Take(pageSize);

    protected override async Task OnInitializedAsync()
    {
        suppliers = await SupplierService.GetAllAsync();
        loading = false;
    }

    private void ConfirmDelete(Supplier supplier)
    {
        supplierToDelete = supplier;
        deleteMessage = $"Are you sure you want to delete \"{supplier.Name}\"? This will also remove all stock lengths associated with this supplier.";
        deleteDialog.Show();
    }

    private async Task DeleteConfirmed()
    {
        if (supplierToDelete != null)
        {
            await SupplierService.DeleteAsync(supplierToDelete.Id);
            suppliers = await SupplierService.GetAllAsync();

            var totalPages = (int)Math.Ceiling((double)suppliers.Count / pageSize);
            if (currentPage > totalPages && totalPages > 0)
                currentPage = totalPages;
        }
    }

    private void OnPageChanged(int page) => currentPage = page;

    private string? TruncateText(string? text, int maxLength)
    {
        if (string.IsNullOrEmpty(text) || text.Length <= maxLength)
            return text;
        return text.Substring(0, maxLength) + "...";
    }
}