using SharedKernel.Extensions;
using Application.Abstractions.Messaging;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Infrastructure.Persistence.Identity;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;

namespace Admin.Pages.Store.Settlement;

public class DetailModel(IMediator mediator, UserManager<ApplicationUser> userManager) : PageModel
{
    public GetGameSettlement.Response? Data { get; private set; }

    [BindProperty]
    public SettleInput Input { get; set; } = new();

    public sealed class SettleInput
    {
        [DisplayName("관리자 메모")]
        [StringLength(500, ErrorMessage = "{0}은(는) {1}자 이하로 입력하세요.")]
        public string? AdminMemo { get; set; }
    }

    public async Task OnGetAsync(int id, CancellationToken ct)
    {
        await LoadAsync(id, ct);
    }

    public async Task<IActionResult> OnPostMarkSettledAsync(int id, CancellationToken ct)
    {
        if (!ModelState.IsValid)
        {
            TempData["ErrorMessages"] = ModelState.GetErrorMessages();
            return RedirectToPage("/Store/Settlement/Detail", new { id });
        }

        var admin = await userManager.GetUserAsync(User);

        if (admin is null)
        {
            TempData["ErrorMessages"] = "관리자 정보를 확인할 수 없습니다.";
            return RedirectToPage("/Store/Settlement/Detail", new { id });
        }

        var result = await mediator.Send(new MarkSettlementSettled.Command(
            id, admin.Id, admin.Email, Input.AdminMemo
        ), ct);

        TempData[result.IsFailure ? "ErrorMessages" : "SuccessMessage"] =
            result.IsFailure ? result.Error.Description : "정산 완료로 처리되었습니다.";

        return RedirectToPage("/Store/Settlement/Detail", new { id });
    }

    private async Task LoadAsync(int id, CancellationToken ct)
    {
        var result = await mediator.Send(new GetGameSettlement.Query(id), ct);

        if (result.IsFailure)
        {
            TempData["ErrorMessages"] = result.Error.Description;
            return;
        }

        Data = result.Value;
        Input.AdminMemo = Data.AdminMemo;
    }
}