@page "/config/nameserver"
@rendermode InteractiveServer
@using CannedNet.Admin.Models
@using System.Text.Json

<PageTitle>NS Config</PageTitle>

<h3>Nameserver (NS) Config</h3>
<p class="text-muted">Manage the nameserver endpoints.json file that controls where the game client connects.</p>

<div class="alert alert-info">
    This is the same editor as the <a href="setup/nameserver">Setup &gt; Nameserver</a> page.
    All endpoint URLs are derived from a single base URL.
</div>

@if (loading)
{
    <div class="spinner-border" role="status"></div>
}
else if (!string.IsNullOrEmpty(error))
{
    <div class="alert alert-danger">@error</div>
}
else
{
    <form>
        <div class="mb-3">
            <button type="submit" class="btn btn-success" @onclick="Save" disabled="@saving">
                @(saving ? "Saving..." : "Save Changes")
            </button>
            @if (!string.IsNullOrEmpty(saveMessage))
            {
                <span class="@(saveError ? "text-danger" : "text-success") ms-2">@saveMessage</span>
            }
        </div>

        <div class="mb-3">
            <label class="form-label" for="baseUrl">Base URL:</label>
            <input id="baseUrl" class="form-control font-monospace" @bind="baseUrl" placeholder="https://cannednet.lapis.codes" />
            <div class="form-text">All endpoint URLs will use this as the base.</div>
        </div>

        <div class="table-responsive">
            <table class="table table-sm table-striped">
                <thead>
                    <tr>
                        <th>Service</th>
                        <th>Full URL</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach (var (name, path) in EndpointDefinitions.Endpoints)
                    {
                        <tr>
                            <td><code>@name</code></td>
                            <td><code>@(baseUrl.TrimEnd('/') + path)</code></td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>
    </form>
}

@code {
    [Inject] private HttpClient Http { get; set; } = default!;

    private bool loading = true;
    private bool saving;
    private bool saveError;
    private string? error;
    private string? saveMessage;
    private string baseUrl = "";

    protected override async Task OnInitializedAsync()
    {
        try
        {
            var json = await Http.GetStringAsync("/admin/api/endpoints");
            baseUrl = EndpointDefinitions.ExtractBaseUrl(json);
        }
        catch (Exception ex)
        {
            error = $"Failed to load: {ex.Message}";
        }
        finally
        {
            loading = false;
        }
    }

    private async Task Save()
    {
        saving = true;
        saveMessage = null;
        saveError = false;
        try
        {
            var json = EndpointDefinitions.BuildEndpointsJson(baseUrl);
            var content = new StringContent(json, System.Text.Encoding.UTF8, "application/json");
            var response = await Http.PutAsync("/admin/api/endpoints", content);
            response.EnsureSuccessStatusCode();
            saveMessage = "Saved successfully!";
        }
        catch (Exception ex)
        {
            saveMessage = $"Error: {ex.Message}";
            saveError = true;
        }
        finally
        {
            saving = false;
        }
    }
}