@page "/"

@using TestingRoom_NN_Kajk_UI.Models
@inject HttpClient HttpClient

<PageTitle>Control</PageTitle>

<div class="row align-content-center text-center align-items-center">
    <div class="col-sm-12 col-xl-6 col-xxl-4">
        <h2><b>Otáčky: @RPM_Actual RPM</b></h2>
        <div class="progress" role="progressbar" aria-label="Basic example" aria-valuenow="@RPM_Actual" aria-valuemin="0" aria-valuemax="@RPM_Max">
            <div class="progress-bar" style="width: @($"{Math.Round((RPM_Actual / RPM_Max), 2) * 100}%")"></div>
        </div>
        <h3/>
    </div>

    <div class="col-sm-12 col-xl-6 col-xxl-4">
        <div class="align-content-center">
            <h4><b>Žádané otáčky:</b></h4>
            <div class="input-group mb-3">
                <input class="form-control text-center" type="number" min="0" max="@RPM_Max" value="@RPM_Requested" @onchange="(x) => SetRPMRequested(int.Parse(x.Value.ToString()))" />
            </div>

            <div>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(-1)">-1</button>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(+1)">+1</button>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(-10)">-10</button>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(+10)">+10</button>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(-100)">-100</button>
                <button class="btn btn-primary" @onclick="() => AddRPMRequested(100)">+100</button>
            </div>

            <h6/>

            <div>
                @foreach (int i in RPM_Presets)
                {
                    <button class="btn btn-primary" @onclick="() => SetRPMRequested(i)">@i RPM</button>
                }
            </div>
        </div>
        <h3/>
    </div>

</div>






@code{
    string RPM_Actual_Variable_Name = "actual_rpm";
    string RPM_Requested_Variable_Name = "requested_rpm";
    string RPM_Max_Variable_Name = "max_rpm";

    float RPM_Actual = 0;
    float RPM_Max = 1900;
    float RPM_Requested = 0;
    List<int> RPM_Presets = new() { 0, 1500, 1800 };

    private System.Timers.Timer RPM_Actual_Timer = new System.Timers.Timer(500); //actual RPM reader timer
    private System.Timers.Timer RPM_Requested_Timer = new System.Timers.Timer(5000); //requested RPM reader timer

    protected override void OnInitialized()
    {
        base.OnInitialized();

        //actual RPM request timer
        RPM_Actual_Timer.AutoReset = true;
        RPM_Actual_Timer.Elapsed += RequestActualRPM;
        RPM_Actual_Timer.Start();

        //requested RPM request timer
        RPM_Requested_Timer.AutoReset = true;
        RPM_Requested_Timer.Elapsed += RequestRequestedRPM;
        RPM_Requested_Timer.Start();
    }

    private void SetRPMRequested(int rpm)
    {
        RPM_Requested_Timer.Stop();
        RPM_Requested = rpm;
        SetRPMRequested();
        RPM_Requested_Timer.Start();
    }

    private void AddRPMRequested(int add)
    {
        RPM_Requested_Timer.Stop();
        RPM_Requested += add;

        if (RPM_Requested < 0)
            RPM_Requested = 0;
        if (RPM_Requested > RPM_Max)
            RPM_Requested = RPM_Max;

        SetRPMRequested();
        RPM_Requested_Timer.Start();
    }

    private async void RequestActualRPM(object? sender, System.Timers.ElapsedEventArgs e)
    {
        //RPM_Actual = float.Parse(await HttpClient.GetStringAsync($"/api/variables/{RPM_Actual_Variable_Name}"));
        await InvokeAsync(StateHasChanged);
    }

    private async void RequestRequestedRPM(object? sender, System.Timers.ElapsedEventArgs e)
    {
        //RPM_Requested = int.Parse(await HttpClient.GetStringAsync($"/api/variables/{RPM_Requested_Variable_Name}"));
        await InvokeAsync(StateHasChanged);
    }

    private async void SetRPMRequested()
    {
        //await HttpClient.PostAsJsonAsync($"/api/variables/{RPM_Requested_Variable_Name}", new VariablePostModel { data = RPM_Requested.ToString(), Isdefault = false });
    }

    private async void GetRPMMax()
    {
        //RPM_Max = int.Parse(await HttpClient.GetStringAsync($"/api/variables/{RPM_Requested_Variable_Name}"));
        await InvokeAsync(StateHasChanged);
    }


}