using Application.Abstractions.Messaging;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace Admin.Pages.Channel.YouTubePubSub;

public class IndexModel(IMediator mediator) : PageModel
{
    public GetYouTubePubSub.Response Data { get; set; } = new([], 0, 0, string.Empty);
    public GetYouTubeLiveStatus.Response LiveStatus { get; set; } = new([]);
    public GetYouTubeHealth.Response Health { get; set; } = new(
        false, null, false, null, string.Empty, 3,
        0, 0, 0, 0, []);

    public async Task OnGetAsync(CancellationToken ct)
    {
        Data = await mediator.Send(new GetYouTubePubSub.Query(), ct);
        LiveStatus = await mediator.Send(new GetYouTubeLiveStatus.Query(), ct);
        Health = await mediator.Send(new GetYouTubeHealth.Query(), ct);
    }

    public async Task<IActionResult> OnPostResubscribeAsync(string youtubeChannelID, CancellationToken ct)
    {
        if (string.IsNullOrWhiteSpace(youtubeChannelID))
        {
            TempData["ErrorMessages"] = "YouTube Channel ID가 필요합니다.";
            return RedirectToPage("/Channel/YouTubePubSub/Index");
        }

        try
        {
            await mediator.Send(new ResubscribeYouTubePubSub.Command(youtubeChannelID), ct);
            TempData["SuccessMessage"] = $"{youtubeChannelID} 재구독 요청 완료.";
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }

    public async Task<IActionResult> OnPostUnsubscribeAsync(string youtubeChannelID, CancellationToken ct)
    {
        if (string.IsNullOrWhiteSpace(youtubeChannelID))
        {
            TempData["ErrorMessages"] = "YouTube Channel ID가 필요합니다.";
            return RedirectToPage("/Channel/YouTubePubSub/Index");
        }

        try
        {
            await mediator.Send(new UnsubscribeYouTubePubSub.Command(youtubeChannelID), ct);
            TempData["SuccessMessage"] = $"{youtubeChannelID} 구독 해지 요청 완료.";
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }

    public async Task<IActionResult> OnPostManualDetectAsync(string videoID, string youtubeChannelID, CancellationToken ct)
    {
        try
        {
            await mediator.Send(new ManualDetectYouTubeLive.Command(videoID, youtubeChannelID), ct);
            TempData["SuccessMessage"] = $"수동 감지 트리거 완료 — videoId={videoID}. 로그에서 라이브 판별 결과를 확인하세요.";
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }

    public async Task<IActionResult> OnPostForceLiveAsync(string videoID, string youtubeChannelID, string? title, CancellationToken ct)
    {
        try
        {
            var result = await mediator.Send(new ForceYouTubeLive.Command(youtubeChannelID, videoID, title), ct);
            if (result.IsFailure)
            {
                TempData["ErrorMessages"] = result.Error.Description;
            }
            else
            {
                TempData["SuccessMessage"] = $"라이브 강제 마킹 완료 — videoId={videoID} (quota 0). 사이드바 즉시 갱신.";
            }
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }

    public async Task<IActionResult> OnPostForceOfflineAsync(string youtubeChannelID, CancellationToken ct)
    {
        try
        {
            var result = await mediator.Send(new ForceYouTubeOffline.Command(youtubeChannelID), ct);
            if (result.IsFailure)
            {
                TempData["ErrorMessages"] = result.Error.Description;
            }
            else
            {
                TempData["SuccessMessage"] = $"라이브 강제 종료 완료 — channelId={youtubeChannelID} (quota 0).";
            }
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }

    public async Task<IActionResult> OnPostTestApiKeyAsync(CancellationToken ct)
    {
        try
        {
            var result = await mediator.Send(new TestYouTubeApiKey.Command(), ct);
            if (result.IsFailure)
            {
                TempData["ErrorMessages"] = result.Error.Description;
            }
            else if (result.Value.Ok)
            {
                TempData["SuccessMessage"] = $"API 키 정상 — 테스트 채널 '{result.Value.TestedChannelName}' 조회 성공 ({result.Value.ElapsedMs}ms).";
            }
            else
            {
                TempData["ErrorMessages"] = $"API 키 테스트 실패 ({result.Value.ElapsedMs}ms): {result.Value.ErrorMessage}";
            }
        }
        catch (Exception e)
        {
            TempData["ErrorMessages"] = e.Message;
        }

        return RedirectToPage("/Channel/YouTubePubSub/Index");
    }
}