using SharedKernel.Extensions;
using MediatR;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using System.ComponentModel.DataAnnotations;

namespace Admin.Pages.Popup;

public class PositionModel(IMediator mediator) : PageModel
{
    public int Total { get; private set; }

    public List<(
        int Num,
        int ID,
        int Index,
        string Code,
        string Subject,
        char IsActive,
        int PopupRows,
        string? UpdatedAt,
        string CreatedAt
    )> List { get; set; } = [];

    [BindProperty(Name = "request")]
    public List<InputModel> Input { get; private set; } = [];

    public List<InputModel> Data { get; private set; } = [];

    public sealed class InputModel
    {
        public int? ID { get; set; }

        [Required]
        [StringLength(30)]
        public required string Code { get; set; }

        [Required]
        [StringLength(255)]
        public required string Subject { get; set; }

        public bool IsActive { get; set; }
    }

    public async Task OnGetAsync(CancellationToken ct)
    {
        if (!ModelState.IsValid)
        {
            return;
        }

        var result = await mediator.Send(new GetPopupPositions.Query(), ct);

        Total = result.Total;
        List = [..result.List.Select(c => (
            c.Num,
            c.ID,
            c.Index,
            c.Code,
            c.Subject,
            c.IsActive ? 'Y' : 'N',
            c.PopupRows,
            c.UpdatedAt.GetDateAt() ?? "-",
            c.CreatedAt.GetDateAt()
        ))];

        Data = [..result.List.Select(x => new InputModel
        {
            ID = x.ID,
            Code = x.Code,
            Subject = x.Subject,
            IsActive = x.IsActive
        })];
    }

    public async Task<IActionResult> OnPostAsync(CancellationToken ct)
    {
        try
        {
            if (!ModelState.IsValid)
            {
                throw new Exception();
            }

            var cmd = new SavePopupPositions.Command(
                [..Input.Select(x => new SavePopupPositions.Command.Row(
                    x.ID,
                    x.Code,
                    x.Subject,
                    x.IsActive
                ))]
            );

            var response = await mediator.Send(cmd, ct);

            TempData["SuccessMessage"] = $"저장 완료 (추가: {response.Inserted}, 수정: {response.Updated}, 삭제: {response.Deleted})";
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Popup/Position");
    }
}