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path: root/MatrixRoomUtils.Web/Pages/RoomState/RoomStateEditorPage.razor
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@page "/RoomStateViewer/{RoomId}/Edit"
@using System.Net.Http.Headers
@using System.Text.Json
@using MatrixRoomUtils.Core.Responses
@inject ILocalStorageService LocalStorage
@inject NavigationManager NavigationManager
<h3>Room state editor - Editing @RoomId</h3>
<hr/>

<p>@status</p>

<input type="checkbox" id="showAll" @bind="ShowMembershipEvents"/> Show member events
<br/>
<InputSelect @bind-Value="shownStateKey">
    <option value="">-- State key --</option>
    @foreach (var stateEvent in FilteredEvents.Where(x => x.StateKey != "").Select(x => x.StateKey).Distinct().OrderBy(x => x)) {
        <option value="@stateEvent">@stateEvent</option>
        Console.WriteLine(stateEvent);
    }
</InputSelect>
<br/>
<InputSelect @bind-Value="shownType">
    <option value="">-- Type --</option>
    @foreach (var stateEvent in FilteredEvents.Where(x => x.StateKey != shownStateKey).Select(x => x.Type).Distinct().OrderBy(x => x)) {
        <option value="@stateEvent">@stateEvent</option>
    }
</InputSelect>
<br/>

<textarea @bind="shownEventJson" style="width: 100%; height: fit-Content;"></textarea>

<LogView></LogView>

@code {
    //get room list
    // - sync withroom list filter
    // Type = support.feline.msc3784
    //support.feline.policy.lists.msc.v1

    [Parameter]
    public string? RoomId { get; set; }

    public List<StateEventResponse> FilteredEvents { get; set; } = new();
    public List<StateEventResponse> Events { get; set; } = new();
    public string status = "";

    protected override async Task OnInitializedAsync() {
        await LocalStorageWrapper.LoadFromLocalStorage(LocalStorage);
        await base.OnInitializedAsync();
        if (RuntimeCache.CurrentHomeServer != null) {
            NavigationManager.NavigateTo("/Login");
            return;
        }
        RoomId = RoomId.Replace('~', '.');
        await LoadStatesAsync();
        Console.WriteLine("Policy list editor initialized!");
    }

    private DateTime _lastUpdate = DateTime.Now;

    private async Task LoadStatesAsync() {
        var StateLoaded = 0;
        using var client = new HttpClient();
    //TODO: can this be improved?
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", RuntimeCache.CurrentHomeServer.AccessToken);
        var response = await client.GetAsync($"{RuntimeCache.CurrentHomeServer.FullHomeServerDomain}/_matrix/client/r0/rooms/{RoomId}/state");
    // var response = await client.GetAsync($"http://localhost:5117/matrix-hq-state.json");
    //var _events = await response.Content.ReadFromJsonAsync<Queue<StateEventStruct>>();
        var _data = await response.Content.ReadAsStreamAsync();
        var __events = JsonSerializer.DeserializeAsyncEnumerable<StateEventResponse>(_data);
        await foreach (var _ev in __events) {
            var e = new StateEventResponse {
                Type = _ev.Type,
                StateKey = _ev.StateKey,
                OriginServerTs = _ev.OriginServerTs,
                Content = _ev.Content
            };
            Events.Add(e);
            if (string.IsNullOrEmpty(e.StateKey)) {
                FilteredEvents.Add(e);
            }
            StateLoaded++;
            if ((DateTime.Now - _lastUpdate).TotalMilliseconds > 100) {
                _lastUpdate = DateTime.Now;
                status = $"Loaded {StateLoaded} state events";
                StateHasChanged();
                await Task.Delay(0);
            }
        }

        StateHasChanged();
    }

    private async Task RebuildFilteredData() {
        status = "Rebuilding filtered data...";
        StateHasChanged();
        await Task.Delay(1);
        var _FilteredEvents = Events;
        if (!ShowMembershipEvents)
            _FilteredEvents = _FilteredEvents.Where(x => x.Type != "m.room.member").ToList();

        status = "Done, rerendering!";
        StateHasChanged();
        await Task.Delay(1);
        FilteredEvents = _FilteredEvents;

        if (_shownType != null)
            shownEventJson = _FilteredEvents.Where(x => x.Type == _shownType).First().Content.ToJson(indent: true, ignoreNull: true);

        StateHasChanged();
    }

    public struct PreRenderedStateEvent {
        public string content { get; set; }
        public long origin_server_ts { get; set; }
        public string state_key { get; set; }
        public string type { get; set; }
    // public string Sender { get; set; }
    // public string EventId { get; set; }
    // public string UserId { get; set; }
    // public string ReplacesState { get; set; }
    }

    public bool ShowMembershipEvents {
        get => _showMembershipEvents;
        set {
            _showMembershipEvents = value;
            RebuildFilteredData();
        }
    }

    private bool _showMembershipEvents;
    private string _shownStateKey;
    private string _shownType;

    private string shownStateKey {
        get => _shownStateKey;
        set {
            _shownStateKey = value;
            RebuildFilteredData();
        }
    }

    private string shownType {
        get => _shownType;
        set {
            _shownType = value;
            RebuildFilteredData();
        }
    }

    private string shownEventJson { get; set; }
}