@page "/Projects/{ProjectSlug}/"
@using LibMatrix
@using BugMine.Web.Classes.Exceptions
@using ArcaneLibs.Extensions

<ProgressLog ></ProgressLog>

@if (Client is null) {
    <p>Authenticating</p>
}
else if (Project is null) {
    @if (Progress == "loading") {
        <p>Loading project <SimpleSpinner/></p>
    }
    else if (Progress == "not-in-room") {
        <p>You are not in the project room.</p>
        <p>You must join before you can view or interact with this project.</p>
        <LinkButton OnClick="TryJoin">Attempt to join</LinkButton>
    }
}
else {
    <h1>@Project.Info.Name</h1>

    @if (Constants.Debug) {
        <p>Debug, beware: here be dragons!</p>
        <LinkButton OnClick="@Project.Room.PermanentlyBrickRoomAsync">Dispose room</LinkButton>
    }
    
    @if (Progress == "loading-issues") {
        <p>Loading issues, got @(Issues?.Count ?? 0) so far... <SimpleSpinner/></p>
    }
    @* <p>@Project.Description</p> *@
    @if (Issues != null) {
        @foreach(var issue in Issues) {
            <pre>@issue.Data.RawContent.ToJson()</pre>
        }
    }
}

@code {
    private string? _progress = "loading";

    [Parameter]
    public string ProjectSlug { get; set; } = null!;

    private BugMineClient? Client { get; set; }

    private BugMineProject? Project { get; set; }
    
    private List<BugMineIssue>? Issues { get; set; }

    private string? Progress {
        get => _progress;
        set {
            _progress = value;
            StateHasChanged();
        }
    }

    protected override async Task OnInitializedAsync() {
        Client ??= await BugMineStorage.GetCurrentSessionOrNavigate();
        if (Client == null) {
            return;
        }

        Progress = "loading";
        StateHasChanged();

        try {
            Project = await Client.GetProject(ProjectSlug);
        }
        catch (MatrixException e) {
            if (e.ErrorCode == BugMineException.ErrorCodes.UserNotInRoom) {
                Progress = "not-in-room";
                StateHasChanged();
                return;
            }

            throw;
        }
        
        Progress = "loading-issues";
        await foreach (var issue in Project.GetIssues()) {
            Issues ??= new List<BugMineIssue>();
            Issues.Add(issue);
            StateHasChanged();
        }
        

        StateHasChanged();
    }

    private async Task TryJoin() {
        var room = await Client.ResolveProjectSlug(ProjectSlug);
        bool success = false;
        while (!success) {
            try {
                await room.JoinAsync();
                if (!string.IsNullOrWhiteSpace(room.RoomId)) {
                    success = true;
                }
                else {
                    await Task.Delay(1000);
                }
            }
            catch (MatrixException e) {
                // if (e.ErrorCode == MatrixException.ErrorCodes.) {
                // await Task.Delay(1000);
                // continue;
                // }

                throw;
            }
        }

        await OnInitializedAsync();
    }

}