using System.Drawing;
using Dpz.Core.Shard.Service;
using Dpz.Core.Web.Models.Video;

namespace Dpz.Core.Web.Controllers;

public class VideoController(
    IBarrageService barrageService,
    ILogger<VideoController> logger,
    IVideoShardService videoShardService,
    IConfiguration configuration
) : Controller
{
    private readonly Lazy<string> _lazyCdnHost = new(() =>
        configuration["S3:CdnHost"]
        ?? throw new InvalidConfigurationException("S3:CdnHost is empty or null")
    );

    public async Task<IActionResult> Index()
    {
        this.SetTitle("视频");
        var videos = await videoShardService.GetVideosAsync();
        return View(videos);
    }

    [Route("video/watch/{id}.html")]
    public async Task<IActionResult> Watch(string id)
    {
        var video = await videoShardService.GetVideoAsync(id);
        if (video == null)
        {
            return NotFound();
        }

        var title = string.IsNullOrWhiteSpace(video.VideoTitle)
            ? video.Title ?? "未命名视频"
            : video.VideoTitle;
        var subtitle = string.IsNullOrWhiteSpace(video.SubTitle) ? video.Name : video.SubTitle;
        var description = video.Description?.Trim();
        var coverUrl = string.IsNullOrWhiteSpace(video.Cover)
            ? $"{_lazyCdnHost.Value}/Video/{video.Title}/video.webp"
            : video.Cover;
        var videoUrl = string.IsNullOrWhiteSpace(video.M3u8)
            ? $"{_lazyCdnHost.Value}/Video/{video.Title}/1080p.m3u8"
            : video.M3u8;
        var tags = video.Tags.Where(x => !string.IsNullOrWhiteSpace(x)).ToArray();

        var model = new VideoWatchModel(
            subtitle ?? "",
            description ?? "",
            video.PlayCount,
            video.DanmakuCount,
            video.CommentCount,
            tags,
            new VideoConfig(video.Id ?? "", videoUrl, coverUrl, title)
        );

        this.SetTitle(video.VideoTitle ?? "");
        return View(model);
    }

    [HttpPatch("play/{id}")]
    public async Task<IActionResult> Play(string id)
    {
        await videoShardService.AddPlayAsync(id);
        return NoContent();
    }

    [Route("history/chat/v3/"), HttpGet]
    public async Task<IActionResult> HistoryChat(string id)
    {
        var dbDanmaku = await barrageService.GetGroupBarragesAsync(id);
        var allDanmaku = dbDanmaku.Select(x =>
        {
            var result = int.TryParse(x.Color, out var color);
            return new object[]
            {
                x.Time,
                x.Position,
                result ? color : x.Color ?? "#FFF",
                "阿胖",
                x.Text ?? "",
            };
        });
        return Json(new { code = 0, data = allDanmaku });
    }

    [Route("history/danmaku/{id}"), HttpGet]
    public async Task<IActionResult> HistoryDanmaku(string id)
    {
        var dbDanmaku = await barrageService.GetGroupBarragesAsync(id);
        var allDanmaku = dbDanmaku
            .OrderBy(x => x.Time)
            .Select(x =>
            {
                var result = int.TryParse(x.Color, out var color);
                var colorRgb = Color.FromArgb(color);
                return new
                {
                    color = result ? $"rgb({colorRgb.R},{colorRgb.G},{colorRgb.B})" : x.Color,
                    text = x.Text,
                    time = x.Time,
                    type = x.Position switch
                    {
                        0 => "scroll",
                        1 => "top",
                        2 => "bottom",
                        _ => "",
                    },
                };
            })
            .ToList();
        return Json(allDanmaku);
    }

    [Route("history/danmaku"), HttpPost]
    public async Task<IActionResult> HistoryDanmaku([FromBody] VideoDanmaku2 danmaku)
    {
        if (string.IsNullOrWhiteSpace(danmaku.Text))
        {
            return Json(new ResultInfo(true));
        }
        var color = ColorTranslator.FromHtml("#FF0000");
        var vmBarrage = new VmBarrage
        {
            Color = color.ToArgb().ToString(),
            Group = danmaku.Id,
            Position = danmaku.Type switch
            {
                "scroll" => 0,
                "top" => 1,
                "bottom" => 2,
                _ => 0,
            },
            SendTime = DateTime.Now,
            Size = 0,
            Text = danmaku.Text,
            Time = danmaku.Time,
        };
        await barrageService.AddBarrageAsync(vmBarrage);
        return Json(new ResultInfo(true));
    }

    [Route("history/chat/v3/"), HttpPost]
    public async Task<IActionResult> HistoryChat([FromBody] VideoDanmaku danmaku)
    {
        if (string.IsNullOrWhiteSpace(danmaku.Text))
        {
            return Json(new { code = 0, data = danmaku });
        }
        var vmBarrage = new VmBarrage
        {
            Color = danmaku.Color.ToString(),
            Group = danmaku.Id,
            Position = (int)danmaku.Type,
            SendTime = DateTime.Now,
            Size = 0,
            Text = danmaku.Text,
            Time = danmaku.Time,
        };
        await barrageService.AddBarrageAsync(vmBarrage);
        return Json(new { code = 0, data = danmaku });
    }

    [Route("history/danmaku/v2/{id}"), HttpGet]
    public async Task<IActionResult> HistoryDanmakuV2(string id)
    {
        var dbDanmaku = await barrageService.GetGroupBarragesAsync(id);
        var data = dbDanmaku
            .Select(x =>
            {
                var result = int.TryParse(x.Color, out var color);
                var colorRgb = Color.FromArgb(color);
                return new
                {
                    text = x.Text,
                    time = x.Time,
                    color = result ? $"rgb({colorRgb.R},{colorRgb.G},{colorRgb.B})" : x.Color,
                    border = false,
                    mode = x.Position switch
                    {
                        0 => 0,
                        1 => 1,
                        2 => 1,
                        _ => 0,
                    },
                };
            })
            .ToList();
        return Json(data);
    }

    [Route("send/danmaku/v2"), HttpPost]
    public async Task<IActionResult> SendDanmaku([FromBody] SendDanmaku danmaku)
    {
        if (!ModelState.IsValid)
        {
            return Json(new ResultInfo(false, ModelState));
        }
        Color color;
        try
        {
            color = ColorTranslator.FromHtml(danmaku.Color);
        }
        catch (Exception e)
        {
            color = ColorTranslator.FromHtml("#FFFFFF");
            logger.LogError(e, "color translator fail,in color:{Color}", danmaku.Color);
        }

        var vmBarrage = new VmBarrage
        {
            Color = color.ToArgb().ToString(),
            Group = danmaku.Id,
            Position = danmaku.Mode,
            SendTime = DateTime.Now,
            Size = 0,
            Text = danmaku.Text,
            Time = danmaku.Time,
        };
        await barrageService.AddBarrageAsync(vmBarrage);
        return Json(new ResultInfo(true));
    }
}