@using Koogle.Application.DTOs

<MudDialog>
    <TitleContent>
        <MudText Typo="Typo.h6">Mitgliedsbeiträge erfassen</MudText>
    </TitleContent>
    <DialogContent>
        <MudText Class="mb-4">
            Erstellt automatisch Einnahme-Buchungen für alle aktiven Mitglieder.
        </MudText>

        <MudStack Row="true" Spacing="4" Class="mb-4">
            <MudSelect T="int" @bind-Value="_selectedMonth" Label="Monat" Style="width: 150px;">
                @for (int m = 1; m <= 12; m++)
                {
                    var month = m;
                    <MudSelectItem Value="@month">@GetMonthName(month)</MudSelectItem>
                }
            </MudSelect>
            <MudSelect T="int" @bind-Value="_selectedYear" Label="Jahr" Style="width: 120px;">
                @for (int y = DateTime.Today.Year; y >= DateTime.Today.Year - 2; y--)
                {
                    var year = y;
                    <MudSelectItem Value="@year">@year</MudSelectItem>
                }
            </MudSelect>
        </MudStack>

        <MudSwitch @bind-Value="_useOverride" Label="Betrag überschreiben" Color="Color.Primary" Class="mb-2" />

        @if (_useOverride)
        {
            <MudNumericField @bind-Value="_overrideAmount"
                Label="Beitragshöhe"
                Format="N2"
                Adornment="Adornment.Start"
                AdornmentText="€"
                Min="0.01m"
                HelperText="Überschreibt den Standard-Mitgliedsbeitrag"
                Class="mb-4" />
        }
        else
        {
            <MudText Typo="Typo.body2" Color="Color.Secondary" Class="mb-4">
                Es wird der in den Club-Einstellungen hinterlegte Standardbeitrag verwendet.
            </MudText>
        }

        @if (_showWarning)
        {
            <MudAlert Severity="Severity.Warning" Class="mb-4">
                Für @GetMonthName(_selectedMonth) @_selectedYear wurden bereits Mitgliedsbeiträge erfasst.
                Trotzdem fortfahren?
            </MudAlert>
        }
    </DialogContent>
    <DialogActions>
        <MudButton OnClick="Cancel">Abbrechen</MudButton>
        <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
            Beiträge erstellen
        </MudButton>
    </DialogActions>
</MudDialog>

@code {
    [CascadingParameter]
    private IMudDialogInstance? MudDialog { get; set; }

    [Parameter]
    public bool HasExistingFees { get; set; }

    private int _selectedMonth = DateTime.Today.Month;
    private int _selectedYear = DateTime.Today.Year;
    private bool _useOverride;
    private decimal _overrideAmount = 10.00m;
    private bool _showWarning;

    protected override void OnParametersSet()
    {
        _showWarning = HasExistingFees;
    }

    private static string GetMonthName(int month) => month switch
    {
        1 => "Januar",
        2 => "Februar",
        3 => "März",
        4 => "April",
        5 => "Mai",
        6 => "Juni",
        7 => "Juli",
        8 => "August",
        9 => "September",
        10 => "Oktober",
        11 => "November",
        12 => "Dezember",
        _ => month.ToString()
    };

    private void Cancel() => MudDialog?.Cancel();

    private void Submit()
    {
        var dto = new CreateMembershipFeesDto
        {
            Year = _selectedYear,
            Month = _selectedMonth,
            OverrideAmount = _useOverride ? _overrideAmount : null
        };
        MudDialog?.Close(DialogResult.Ok(dto));
    }
}