@using SteUp.Shared.Components.Layout
@using SteUp.Shared.Components.Layout.Overlay
@using SteUp.Shared.Components.Layout.Spinner
@using SteUp.Shared.Components.SingleElements.Card.ModalForm
@using SteUp.Shared.Components.SingleElements.MessageBox
@using SteUp.Shared.Core.Dto
@using SteUp.Shared.Core.Entities
@using SteUp.Shared.Core.Interface.IntegryApi
@using SteUp.Shared.Core.Interface.LocalDb
@using SteUp.Shared.Core.Interface.System
@using SteUp.Shared.Core.Interface.System.Network
@inject INetworkService NetworkService
@inject IDialogService Dialog
@inject IIntegryApiService IntegryApiService
@inject IAttachedService AttachedService
@inject IIspezioniService IspezioniService

<MudDialog Class="customDialog-form">
    <DialogContent>
        <MudForm @ref="_form">
            <HeaderLayout Cancel="true" OnCancel="@Cancel" LabelSave="@LabelSave"
                          OnSave="Save" Title="Scheda"/>

            <div class="content">

                <CardFormModal Title="Reparto" Loading="SteupDataService.Reparti.IsNullOrEmpty()">
                    <MudSelectExtended ReadOnly="IsView" T="JtbFasiDto?" Variant="Variant.Text"
                                       @bind-Value="Scheda.Reparto" ToStringFunc="@(x => x?.Descrizione)"
                                       @bind-Value:after="OnAfterChangeValue" Required="true"
                                       RequiredError="Reparto obbligatorio">
                        @foreach (var fasi in SteupDataService.Reparti)
                        {
                            <MudSelectItemExtended Class="custom-item-select" Value="@fasi">
                                @fasi.Descrizione
                            </MudSelectItemExtended>
                        }
                    </MudSelectExtended>
                </CardFormModal>

                <CardFormModal Title="Motivo" Loading="SteupDataService.TipiAttività.IsNullOrEmpty()">
                    <MudSelectExtended ReadOnly="@(IsView || Scheda.CodJfas.IsNullOrEmpty())" T="string?"
                                       Variant="Variant.Text"
                                       @bind-Value="Scheda.ActivityTypeId" @bind-Value:after="OnAfterChangeValue"
                                       Required="true" RequiredError="Motivo obbligatorio">
                        @foreach (var type in SteupDataService.TipiAttività.Where(x => x.CodJfas.EqualsIgnoreCase(Scheda.CodJfas!)))
                        {
                            <MudSelectItemExtended Class="custom-item-select"
                                                   Value="@type.ActivityTypeId">@type.ActivityTypeId</MudSelectItemExtended>
                        }
                    </MudSelectExtended>
                </CardFormModal>

                @if (!AttachedList.IsNullOrEmpty())
                {
                    <div class="container-attached">
                        <div class="scroll-attached">
                            @foreach (var item in AttachedList!.Select((p, index) => new { p, index }))
                            {
                                <MudCard>
                                    @if (!item.p.ThumbPath.IsNullOrEmpty())
                                    {
                                        <MudCardMedia Image="@item.p.ThumbPath" Height="100"/>
                                    }
                                    <MudCardContent Class="image_card">
                                        <MudText Typo="Typo.subtitle1"><b>@item.p.Name</b></MudText>
                                        <MudIconButton Variant="Variant.Outlined" Icon="@Icons.Material.Rounded.Close"
                                                       Size="Size.Small" Color="Color.Error"
                                                       OnClick="@(() => OnRemoveAttached(item.index))"/>
                                    </MudCardContent>
                                </MudCard>
                            }
                        </div>
                    </div>
                }

                @if (!IsView)
                {
                    <div class="container-button">
                        <MudButton Class="button-settings green-icon"
                                   FullWidth="true"
                                   StartIcon="@Icons.Material.Rounded.AttachFile"
                                   Size="Size.Medium"
                                   OnClick="@OpenAddAttached"
                                   Variant="Variant.Outlined">
                            Aggiungi foto
                        </MudButton>
                    </div>
                }

                <CardFormModal Title="Scadenza">
                    <MudSelectExtended FullWidth="true" ReadOnly="@IsView" T="int" Variant="Variant.Text"
                                       @bind-Value="@Scheda.Scadenza" @bind-Value:after="OnAfterChangeValue">
                        <MudSelectItemExtended Class="custom-item-select" Text="24H" Value="24"/>
                        <MudSelectItemExtended Class="custom-item-select" Text="1 Settimana" Value="168"/>
                        <MudSelectItemExtended Class="custom-item-select" Text="1 Mese" Value="730"/>
                        <MudSelectItemExtended Class="custom-item-select" Text="2 Mesi" Value="1460"/>
                    </MudSelectExtended>
                </CardFormModal>

                <CardFormModal Title="Responsabile">
                    <MudTextField FullWidth="true" ReadOnly="IsView" T="string?" Variant="Variant.Text"
                                  @bind-Value="Scheda.Responsabile" @bind-Value:after="OnAfterChangeValue"
                                  DebounceInterval="500" OnDebounceIntervalElapsed="OnAfterChangeValue"/>
                </CardFormModal>

                <CardFormModal Title="Note">
                    <MudTextField ReadOnly="IsView" T="string?" Variant="Variant.Text" Lines="3"
                                  @bind-Value="Scheda.Note" @bind-Value:after="OnAfterChangeValue"
                                  DebounceInterval="500" OnDebounceIntervalElapsed="OnAfterChangeValue"/>
                </CardFormModal>

                <div class="container-button">
                    <MudButton Class="button-settings blue-icon"
                               FullWidth="true"
                               StartIcon="@Icons.Material.Rounded.Description"
                               Size="Size.Medium"
                               OnClick="@SuggestActivityDescription"
                               Variant="Variant.Outlined">
                        Suggerisci note descrittive
                    </MudButton>
                </div>
            </div>
        </MudForm>

        <ConfirmUpdateActivity @ref="_confirmUpdateMessage"/>
    </DialogContent>
</MudDialog>

<SpinnerOverlay VisibleOverlay="VisibleOverlay" SuccessAnimation="SuccessAnimation"/>

@code {
    [CascadingParameter] private IMudDialogInstance MudDialog { get; set; } = null!;
    [Parameter] public required string CodMdep { get; set; }
    [Parameter] public required DateOnly Data { get; set; }

    private Scheda Scheda { get; set; } = new();

    private bool IsNew { get; set; }
    private bool IsLoading { get; set; }
    private bool IsView => !NetworkService.ConnectionAvailable;

    //Overlay
    private bool VisibleOverlay { get; set; }
    private bool SuccessAnimation { get; set; }

    private ConfirmUpdateActivity _confirmUpdateMessage = null!;
    private MudForm _form = null!;

    private string? LabelSave { get; set; }
    private bool IsDirty { get; set; }
    private Scheda _originalScheda = null!;
    private List<AttachedDto>? AttachedList { get; set; }

    protected override void OnInitialized()
    {
        _originalScheda = Scheda.Clone();
        Snackbar.Configuration.PositionClass = Defaults.Classes.Position.TopCenter;
    }

    private async Task Save()
    {
        VisibleOverlay = true;
        StateHasChanged();

        await IspezioniService.AddSchedaAsync(CodMdep, Data, UserSession.User.Username, Scheda);

        SuccessAnimation = true;
        StateHasChanged();
        
        await Task.Delay(1250);
        MudDialog.Close(Scheda);
    }

    private async Task Cancel()
    {
        if (await CheckSavePreAction())
        {
            await AttachedService.CleanTempStorageAsync();
            MudDialog.Cancel();
        }
    }

    #region Form

    private void OnAfterChangeValue()
    {
        RecalcDirty();
        StateHasChanged();
    }

    private void RecalcDirty()
    {
        IsDirty = !ValueComparer.AreEqual(Scheda, _originalScheda);

        if (IsDirty) LabelSave = !IsNew ? "Aggiorna" : "Salva";
        else LabelSave = null;
    }

    private static class ValueComparer
    {
        public static bool AreEqual(Scheda? a, Scheda? b)
        {
            if (a is null || b is null) return a == b;

            return
                a.CodJfas == b.CodJfas &&
                a.DescrizioneReparto == b.DescrizioneReparto &&
                a.ActivityTypeId == b.ActivityTypeId &&
                a.Note == b.Note &&
                a.Responsabile == b.Responsabile &&
                a.Scadenza == b.Scadenza;
        }
    }

    private async Task<bool> CheckSavePreAction()
    {
        if (!IsDirty) return true;

        var resul = await _confirmUpdateMessage.ShowAsync();
        if (resul is not true) return true;

        VisibleOverlay = true;
        StateHasChanged();

        await Submit();

        VisibleOverlay = false;
        StateHasChanged();

        return false;
    }

    private async Task Submit()
    {
        await _form.Validate();
        if (_form.IsValid) await Save();
    }

    #endregion

    #region File

    private async Task OpenAddAttached()
    {
        var result = await ModalHelper.OpenAddAttached(Dialog);
        if (result is not { Canceled: false, Data: List<AttachedDto> attachedList }) return;

        VisibleOverlay = true;
        await InvokeAsync(StateHasChanged);
        await Task.Yield();

        // prepara placeholder in UI subito (così vedi le card con spinner)
        AttachedList ??= [];
        foreach (var a in attachedList)
            AttachedList.Add(new AttachedDto { Name = a.Name, MimeType = a.MimeType, FileBytes = a.FileBytes });

        await InvokeAsync(StateHasChanged);

        // Processa in background e aggiorna UI man mano (o a blocchi)
        _ = Task.Run(async () =>
        {
            for (var i = 0; i < attachedList.Count; i++)
            {
                var a = attachedList[i];
                if (a.FileBytes is null || a.Name is null) continue;

                var (origUrl, thumbUrl) = await AttachedService.SaveAndCreateThumbAsync(a.FileBytes, a.Name);

                await InvokeAsync(() =>
                {
                    var target = AttachedList![AttachedList.Count - attachedList.Count + i];
                    target.TempPath = origUrl;
                    target.ThumbPath = thumbUrl;
                    StateHasChanged();
                });
            }

            await InvokeAsync(() =>
            {
                VisibleOverlay = false;
                StateHasChanged();
            });
        });
    }

    private void OnRemoveAttached(int index)
    {
        if (AttachedList is null || index < 0 || index >= AttachedList.Count)
            return;

        AttachedList.RemoveAt(index);
        StateHasChanged();
    }

    #endregion

    private void SuggestActivityDescription()
    {
        if (Scheda.ActivityTypeId == null)
        {
            Snackbar.Add("Indicare prima il motivo", Severity.Error);
            return;
        }

        VisibleOverlay = true;
        StateHasChanged();

        _ = Task.Run(async () =>
        {
            var activityDescriptions = await IntegryApiService.SuggestActivityDescription(Scheda.ActivityTypeId);

            var modal = await ModalHelper.OpenSuggestActivityDescription(Dialog, activityDescriptions);

            if (modal is { Canceled: false, Data: not null })
                Scheda.Note = modal.Data!.ToString();

            VisibleOverlay = false;
            await InvokeAsync(StateHasChanged);
        });
    }

}