@page "/Rooms/Create"
@using System.Text.Json
@using System.Reflection
@using ArcaneLibs.Extensions
@using LibMatrix
@using LibMatrix.EventTypes.Spec.State
@using LibMatrix.Extensions
@using LibMatrix.Helpers
@using LibMatrix.Homeservers
@using LibMatrix.Responses
@using MatrixRoomUtils.Web.Classes.RoomCreationTemplates
@* @* ReSharper disable once RedundantUsingDirective - Must not remove this, Rider marks this as "unused" when it's not */ *@

<h3>Room Manager - Create Room</h3>

@* <pre Contenteditable="true" @onkeypress="@JsonChanged" content="JsonString">@JsonString</pre> *@
<style>
     table.table-top-first-tr tr td:first-child {
         vertical-align: top;
     }
 </style>
<table class="table-top-first-tr">
    <tr style="padding-bottom: 16px;">
        <td>Preset:</td>
        <td>
            @if (Presets is null) {
                <p style="color: red;">Presets is null!</p>
            }
            else {
                <InputSelect @bind-Value="@RoomPreset">
                    @foreach (var createRoomRequest in Presets) {
                        <option value="@createRoomRequest.Key">@createRoomRequest.Key</option>
                    }
                </InputSelect>
            }
        </td>
    </tr>
    @if (creationEvent is not null) {
        <tr>
            <td>Room name:</td>
            <td>
                @if (creationEvent.Name is null) {
                    <p style="color: red;">creationEvent.Name is null!</p>
                }
                else {
                    <FancyTextBox @bind-Value="@creationEvent.Name"></FancyTextBox>
                    <p>(#<FancyTextBox @bind-Value="@creationEvent.RoomAliasName"></FancyTextBox>:@HomeServer.WhoAmI.UserId.Split(':').Last())</p>
                }
            </td>
        </tr>
        <tr>
            <td>Room type:</td>
            <td>
                @if (creationEvent._creationContentBaseType is null) {
                    <p style="color: red;">creationEvent._creationContentBaseType is null!</p>
                }
                else {
                    <InputSelect @bind-Value="@creationEvent._creationContentBaseType.Type">
                        <option value="">Room</option>
                        <option value="m.space">Space</option>
                    </InputSelect>
                    <FancyTextBox @bind-Value="@creationEvent._creationContentBaseType.Type"></FancyTextBox>
                }
            </td>
        </tr>
        <tr>
            <td style="padding-top: 16px;">History visibility:</td>
            <td style="padding-top: 16px;">
                <InputSelect @bind-Value="@historyVisibility.HistoryVisibility">
                    <option value="invited">Invited</option>
                    <option value="joined">Joined</option>
                    <option value="shared">Shared</option>
                    <option value="world_readable">World readable</option>
                </InputSelect>
            </td>
        </tr>
        <tr>
            <td>Guest access:</td>
            <td>
                <ToggleSlider @bind-Value="guestAccessEvent.IsGuestAccessEnabled">
                    @(guestAccessEvent.IsGuestAccessEnabled ? "Guests can join" : "Guests cannot join") (@guestAccessEvent.GuestAccess)
                </ToggleSlider>
                <InputSelect @bind-Value="@guestAccessEvent.GuestAccess">
                    <option value="can_join">Can join</option>
                    <option value="forbidden">Forbidden</option>
                </InputSelect>
            </td>
        </tr>

        <tr>
            <td>Room icon:</td>
            <td>
                <img src="@hsResolver.ResolveMediaUri(HomeServer.ServerName, roomAvatarEvent.Url)" style="width: 128px; height: 128px; border-radius: 50%;"/>
                <div style="display: inline-block; vertical-align: middle;">
                    <FancyTextBox @bind-Value="@roomAvatarEvent.Url"></FancyTextBox><br/>
                    <InputFile OnChange="RoomIconFilePicked"></InputFile>
                </div>
            </td>
        </tr>
        <tr>
            <td>Permissions:</td>
            <details>
                <summary>@creationEvent.PowerLevelContentOverride.Users.Count members</summary>
                @foreach (var user in creationEvent.PowerLevelContentOverride.Events.Keys) {
                    var _event = user;
                    <tr>
                        <td>
                            <FancyTextBox Formatter="@GetPermissionFriendlyName"
                                          Value="@_event"
                                          ValueChanged="val => { creationEvent.PowerLevelContentOverride.Events.ChangeKey(_event, val); }">
                            </FancyTextBox>:
                        </td>
                        <td>
                            <input type="number" value="@creationEvent.PowerLevelContentOverride.Events[_event]" @oninput="val => { creationEvent.PowerLevelContentOverride.Events[_event] = int.Parse(val.Value.ToString()); }" @onfocusout="() => { creationEvent.PowerLevelContentOverride.Events = creationEvent.PowerLevelContentOverride.Events.OrderByDescending(x => x.Value).ThenBy(x => x.Key).ToDictionary(x => x.Key, x => x.Value); }"/>
                        </td>
                    </tr>
                }
                @foreach (var user in creationEvent.PowerLevelContentOverride.Users.Keys) {
                    var _user = user;
                    <tr>
                        <td><FancyTextBox Value="@_user" ValueChanged="val => { creationEvent.PowerLevelContentOverride.Users.ChangeKey(_user, val); creationEvent.PowerLevelContentOverride.Users = creationEvent.PowerLevelContentOverride.Users.OrderByDescending(x => x.Value).ThenBy(x => x.Key).ToDictionary(x => x.Key, x => x.Value); }"></FancyTextBox>:</td>
                        <td>
                            <input type="number" value="@creationEvent.PowerLevelContentOverride.Users[_user]" @oninput="val => { creationEvent.PowerLevelContentOverride.Users[_user] = int.Parse(val.Value.ToString()); }"/>
                        </td>
                    </tr>
                }
            </details>
        </tr>
        <tr>
            <td>Server ACLs:</td>
            <td>
                @if (serverAcl?.Allow is null) {
                    <p>No allow rules exist!</p>
                    <button @onclick="@(() => { serverAcl.Allow = new List<string> { "*" }; })">Create sane defaults</button>
                }
                else {
                    <details>
                        <summary>@((creationEvent["m.room.server_acls"].TypedContent as RoomServerACLEventContent).Allow.Count) allow rules</summary>
                        @* <StringListEditor @bind-Items="@serverAcl.Allow"></StringListEditor> *@
                    </details>
                }
                @if (serverAcl?.Deny is null) {
                    <p>No deny rules exist!</p>
                    <button @onclick="@(() => { serverAcl.Allow = new List<string>(); })">Create sane defaults</button>
                }
                else {
                    <details>
                        <summary>@((creationEvent["m.room.server_acls"].TypedContent as RoomServerACLEventContent).Deny.Count) deny rules</summary>
                        @* <StringListEditor @bind-Items="@serverAcl.Allow"></StringListEditor> *@
                    </details>
                }
            </td>
        </tr>

        <tr>
            <td>Invited members:</td>
            <td>
                <details>
                    <summary>@creationEvent.InitialState.Count(x => x.Type == "m.room.member") members</summary>
                    @* <button @onclick="() => { RuntimeCache.LoginSessions.Select(x => x.Value.LoginResponse.UserId).ToList().ForEach(InviteMember); }">Invite all logged in accounts</button> *@
                    @foreach (var member in creationEvent.InitialState.Where(x => x.Type == "m.room.member" && x.StateKey != HomeServer.UserId)) {
                        <UserListItem UserId="@member.StateKey"></UserListItem>
                    }
                </details>
            </td>
        </tr>
        @* Initial states, should remain at bottom *@
        <tr>
            <td style="vertical-align: top;">Initial states:</td>
            <td>
                <details>

                    @code
                    {
                        private static readonly string[] ImplementedStates = { "m.room.avatar", "m.room.history_visibility", "m.room.guest_access", "m.room.server_acl" };
                    }

                    <summary> @creationEvent.InitialState.Count(x => !ImplementedStates.Contains(x.Type)) custom states</summary>
                    <table>
                        @foreach (var initialState in creationEvent.InitialState.Where(x => !ImplementedStates.Contains(x.Type))) {
                            <tr>
                                <td style="vertical-align: top;">
                                    @(initialState.Type):
                                    @if (!string.IsNullOrEmpty(initialState.StateKey)) {
                                        <br/>
                                        <span>(@initialState.StateKey)</span>
                                    }

                                </td>
                                <td>
                                    <pre>@JsonSerializer.Serialize(initialState.RawContent, new JsonSerializerOptions { WriteIndented = true })</pre>
                                </td>
                            </tr>
                        }
                    </table>
                </details>
                <details>
                    <summary> @creationEvent.InitialState.Count initial states</summary>
                    <table>
                        @foreach (var initialState in creationEvent.InitialState) {
                            var _state = initialState;
                            <tr>
                                <td style="vertical-align: top;">
                                    <span>@(_state.Type):</span><br/>
                                    <button @onclick="() => { creationEvent.InitialState.Remove(_state); StateHasChanged(); }">Remove</button>
                                </td>

                                <td>
                                    <pre>@JsonSerializer.Serialize(_state.RawContent, new JsonSerializerOptions { WriteIndented = true })</pre>
                                </td>
                            </tr>
                        }
                    </table>
                </details>
            </td>
        </tr>
    }
</table>
<button @onclick="CreateRoom">Create room</button>
<br/>
<ModalWindow Title="Creation JSON">
    <pre>
        @creationEvent.ToJson(ignoreNull: true)
    </pre>
</ModalWindow>
<ModalWindow Title="Creation JSON (with null values)">
    <pre>
        @creationEvent.ToJson()
    </pre>
</ModalWindow>

@if (_matrixException is not null) {
    <ModalWindow Title="@("Matrix exception: " + _matrixException.ErrorCode)">
        <pre>
            @_matrixException.Message
        </pre>
    </ModalWindow>
}

@code {

    private string RoomPreset {
        get => Presets.ContainsValue(creationEvent) ? Presets.First(x => x.Value == creationEvent).Key : "Not a preset";
        set {
            creationEvent = Presets[value];
            JsonChanged();
            StateHasChanged();
        }
    }

    private CreateRoomRequest? creationEvent { get; set; }

    private Dictionary<string, CreateRoomRequest>? Presets { get; set; } = new();
    private AuthenticatedHomeserverGeneric? HomeServer { get; set; }

    private MatrixException? _matrixException { get; set; }

    private RoomHistoryVisibilityEventContent? historyVisibility => creationEvent?["m.room.history_visibility"].TypedContent as RoomHistoryVisibilityEventContent;
    private RoomGuestAccessEventContent? guestAccessEvent => creationEvent?["m.room.guest_access"].TypedContent as RoomGuestAccessEventContent;
    private RoomServerACLEventContent? serverAcl => creationEvent?["m.room.server_acls"].TypedContent as RoomServerACLEventContent;
    private RoomAvatarEventContent? roomAvatarEvent => creationEvent?["m.room.avatar"].TypedContent as RoomAvatarEventContent;

    protected override async Task OnInitializedAsync() {
        HomeServer = await MRUStorage.GetCurrentSessionOrNavigate();
        if (HomeServer is null) return;

        foreach (var x in Assembly.GetExecutingAssembly().GetTypes().Where(x => x.IsClass && !x.IsAbstract && x.GetInterfaces().Contains(typeof(IRoomCreationTemplate))).ToList()) {
            Console.WriteLine($"Found room creation template in class: {x.FullName}");
            var instance = (IRoomCreationTemplate)Activator.CreateInstance(x);
            Presets[instance.Name] = instance.CreateRoomRequest;
        }
        Presets = Presets.OrderBy(x => x.Key).ToDictionary(x => x.Key, x => x.Value);

        if (!Presets.ContainsKey("Default")) {
            Console.WriteLine($"No default room found in {Presets.Count} presets: {string.Join(", ", Presets.Keys)}");
        }
        else RoomPreset = "Default";

        await base.OnInitializedAsync();
    }

    private void JsonChanged() => Console.WriteLine(creationEvent.ToJson());

    private async Task RoomIconFilePicked(InputFileChangeEventArgs obj) {
        var res = await HomeServer.UploadFile(obj.File.Name, obj.File.OpenReadStream(), obj.File.ContentType);
        Console.WriteLine(res);
        (creationEvent["m.room.avatar"].TypedContent as RoomAvatarEventContent).Url = res;
        StateHasChanged();
    }

    private async Task CreateRoom() {
        Console.WriteLine("Create room");
        Console.WriteLine(creationEvent.ToJson());
        creationEvent.CreationContent.Add("rory.gay.created_using", "Rory&::MatrixRoomUtils (https://mru.rory.gay)");
        try {
            var id = await HomeServer.CreateRoom(creationEvent);
        }
        catch (MatrixException e) {
            _matrixException = e;
        }
    }

    private void InviteMember(string mxid) {
        if (!creationEvent.InitialState.Any(x => x.Type == "m.room.member" && x.StateKey == mxid) && HomeServer.UserId != mxid)
            creationEvent.InitialState.Add(new StateEvent {
                Type = "m.room.member",
                StateKey = mxid,
                TypedContent = new RoomMemberEventContent {
                    Membership = "invite",
                    Reason = "Automatically invited at room creation time."
                }
            });
    }

    private string GetStateFriendlyName(string key) => key switch {
        "m.room.history_visibility" => "History visibility",
        "m.room.guest_access" => "Guest access",
        "m.room.join_rules" => "Join rules",
        "m.room.server_acl" => "Server ACL",
        "m.room.avatar" => "Avatar",
        _ => key
        };

    private string GetPermissionFriendlyName(string key) => key switch {
        "m.reaction" => "Send reaction",
        "m.room.avatar" => "Change room icon",
        "m.room.canonical_alias" => "Change room alias",
        "m.room.encryption" => "Enable encryption",
        "m.room.history_visibility" => "Change history visibility",
        "m.room.name" => "Change room name",
        "m.room.power_levels" => "Change power levels",
        "m.room.tombstone" => "Upgrade room",
        "m.room.topic" => "Change room topic",
        "m.room.pinned_events" => "Pin events",
        "m.room.server_acl" => "Change server ACLs",
        _ => key
        };

}