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@page "/Dev/WellKnownRes"
@using ArcaneLibs.Extensions
@using LibMatrix.Services.WellKnownResolver
@using LibMatrix.Services.WellKnownResolver.WellKnownResolvers
@inject HomeserverResolverService legacyResolver
@inject WellKnownResolverService rewriteResolver
@inject ClientWellKnownResolver rewriteClientResolver
<h3>Known Homeserver List</h3>
<hr/>

<span>Room ID: <FancyTextBox @bind-Value="@RoomId"/><LinkButton OnClick="@Execute">Execute</LinkButton></span>

<span>Stats:</span><br/>
<span>Server count: @entries.Count</span><br/>
<span>Client server resolution rate (N/O/T): @entries.Count(x => x.HasClientWellKnown)/@entries.Count(x => !string.IsNullOrWhiteSpace(x.LegacyResolutionResult?.Client))/@entries.Count</span>
<br/>
<span>Server server resolution rate (N/T): @entries.Count(x => x.HasServerWellKnown)/@entries.Count</span><br/>
<span>Support resolution rate (N/T): @entries.Count(x => x.HasSupportWellKnown)/@entries.Count</span><br/>

<table class="table-bordered">
    <thead>
        <td>Homeserver</td>
        <td>Client API</td>
        <td>Server API</td>
        <td>Has support record</td>
    </thead>
    @foreach (var entry in entries) {
        <tr>
            <td>@entry.Homeserver</td>
            <td style="background-color: @GetClientColor(entry)">
                <span>L: @entry.LegacyResolutionResult?.Client</span><br/>
                <span>R: @entry.WellKnownResolutionResult?.ClientWellKnown?.Content?.Homeserver.BaseUrl</span>
            </td>
            <td style="background-color: @GetServerColor(entry)">
                <span>L: @entry.LegacyResolutionResult?.Server</span><br/>
                <span>R: @entry.WellKnownResolutionResult?.ServerWellKnown?.Content?.Homeserver</span>
            </td>
            <td>@(entry.HasSupportWellKnown ? "Y" : "X")</td>
        </tr>
        <tr>
            <td colspan="6">
                <details>
                    <pre>@(entry.WellKnownResolutionResult?.ToJson() ?? "null")</pre>
                </details>
            </td>
        </tr>
    }
</table>

@code {
    private List<TableEntry> entries = new();

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

    AuthenticatedHomeserverGeneric? hs { get; set; }

    protected override async Task OnInitializedAsync() {
        hs = await sessionStore.GetCurrentHomeserver(navigateOnFailure: true);
        if (hs is null) return;

        if (RoomId is not null) {
            await Execute();
        }
    }

    private class TableEntry {
        public required string Homeserver { get; set; }
        public HomeserverResolverService.WellKnownUris? LegacyResolutionResult { get; set; }
        public WellKnownResolverService.WellKnownRecords? WellKnownResolutionResult { get; set; }

        public bool HasClientWellKnown => WellKnownResolutionResult?.ClientWellKnown is { Content.Homeserver.BaseUrl: { Length: > 0 } };
        public bool HasServerWellKnown => WellKnownResolutionResult?.ServerWellKnown is { Content.Homeserver.Length: > 0 };
        public bool HasSupportWellKnown => WellKnownResolutionResult?.SupportWellKnown?.Content is not null and not { SupportPage: null, Contacts: null or { Count: 0 } };
    }

    private async Task Execute() {
        var members = await hs!.GetRoom(RoomId!).GetMembersListAsync();
        var homeservers = members.Select(x => x.StateKey!.Split(':', 2)[1]).Distinct().ToList();
        var entries = new List<TableEntry>();
        foreach (var homeserver in homeservers) {
            var e = new TableEntry() { Homeserver = homeserver };
            _ = TryResolveLegacy(e);
            _ = TryFullResolveRewrite(e);
            entries.Add(e);
        }

        this.entries = entries;
        StateHasChanged();
    }

    private async Task TryResolveLegacy(TableEntry entry) {
        try {
            var cTask = legacyResolver.ResolveHomeserverFromWellKnown(entry.Homeserver, enableServer: false);
            var sTask = legacyResolver.ResolveHomeserverFromWellKnown(entry.Homeserver, enableClient: false);
            entry.LegacyResolutionResult = (await cTask);
            entry.LegacyResolutionResult.Server = (await sTask).Server;
            StateHasChanged();
        }
        catch { }
    }

    private async Task TryFullResolveRewrite(TableEntry entry) {
        try {
            entry.WellKnownResolutionResult = await rewriteResolver.TryResolveWellKnownRecords(entry.Homeserver);
            StateHasChanged();
        }
        catch { }
    }

    private string GetClientColor(TableEntry entry) {
        if (entry.LegacyResolutionResult?.Client == entry.WellKnownResolutionResult?.ClientWellKnown?.Content?.Homeserver?.BaseUrl && entry.WellKnownResolutionResult?.ClientWellKnown?.Content?.Homeserver?.BaseUrl == null) return "#333333";
        if (entry.LegacyResolutionResult?.Client == entry.WellKnownResolutionResult?.ClientWellKnown?.Content?.Homeserver?.BaseUrl?.TrimEnd('/')) return "#008800";
        return "#ff0000";
    }

    private string GetServerColor(TableEntry entry) {
        if (entry.LegacyResolutionResult?.Server == entry.WellKnownResolutionResult?.ServerWellKnown?.Content?.Homeserver && entry.WellKnownResolutionResult?.ServerWellKnown?.Content?.Homeserver == null) return "#333333";
        if (entry.LegacyResolutionResult?.Server == entry.WellKnownResolutionResult?.ServerWellKnown?.Content?.Homeserver.TrimEnd('/')) return "#008800";
        return "#ff0000";
    }

}