using Duempelkas.App.Services.Models;
using Microsoft.AspNetCore.Components;

namespace Duempelkas.App.Components.Dialogs;

public partial class AddTransferDialog
{
    #region Parameters

    [Parameter]
    public int SourceAccountId { get; set; }

    [Parameter]
    public EntryDto? EditEntry { get; set; }

    [Parameter]
    public EventCallback<DateTime> OnSave { get; set; }

    [Parameter]
    public EventCallback OnCancel { get; set; }

    #endregion

    [Parameter] public int? ContextYear { get; set; }
    private bool confirmDifferentYear;
    private int? confirmedYear;
    private bool OutsideYear => ContextYear.HasValue && date.Year != ContextYear.Value;

    #region Fields

    private List<AccountSummaryDto> accounts = new();
    private int targetAccountId;
    private string dateText = DateTime.Today.ToString("yyyy-MM-dd");
    private DateTime date => Duempelkas.App.Services.BookingInput.Date(dateText);
    private string title = string.Empty;
    private string amountText = string.Empty;
    private bool ValidAmount => Duempelkas.App.Services.BookingInput.TryAmount(amountText, out _);
    private decimal amount => Duempelkas.App.Services.BookingInput.TryAmount(amountText, out var value) ? value : 0;
    private bool initialized;
    private int? initializedEntryId;

    #endregion

    #region Properties

    private bool CanSave => targetAccountId > 0 && targetAccountId != SourceAccountId && !string.IsNullOrWhiteSpace(title) && ValidAmount && date != default && (!OutsideYear || (confirmDifferentYear && confirmedYear == date.Year));

    #endregion

    #region Lifecycle

    protected override async Task OnParametersSetAsync()
    {
        if (!accounts.Any())
        {
            accounts = await AccountService.GetAllAccountsAsync();
        }

        if (initialized && initializedEntryId == EditEntry?.Id) return;
        initialized = true;
        initializedEntryId = EditEntry?.Id;
        if (EditEntry != null)
        {
            targetAccountId = EditEntry.LinkedAccountId ?? 0;
            dateText = EditEntry.Date.ToString("yyyy-MM-dd");
            title = EditEntry.Title;
            amountText = EditEntry.Amount.ToString("0.00", System.Globalization.CultureInfo.GetCultureInfo("de-DE"));
        }
    }

    #endregion

    #region Actions

    private async Task Save()
    {
        if (!CanSave) return;
        if (EditEntry != null)
        {
            await EntryService.UpdateTransferAsync(EditEntry.Id, targetAccountId, date, title.Trim(), amount);
        }
        else
        {
            await EntryService.CreateTransferAsync(SourceAccountId, targetAccountId, date, title.Trim(), amount);
        }

        await OnSave.InvokeAsync(date);
    }

    private async Task Cancel() => await OnCancel.InvokeAsync();

    #endregion
}