using HtmlAgilityPack;

namespace JSMR.Infrastructure.Scanning.Models;

public class DLSiteHtmlNode
{
    public HtmlNode LeftNode { get; }
    public HtmlNode RightNode { get; }
    public HtmlNode ThumbNode { get; }

    public HtmlNode ProductNode { get; private set; }
    public HtmlNode ProductLinkNode { get; private set; }
    public HtmlNode ProductTextNode { get; private set; }
    public HtmlNode DescriptionNode { get; private set; }
    public HtmlNode MakerNode { get; private set; }
    public HtmlNode MakerLinkNode { get; private set; }
    public HtmlNode SalesDateNode { get; private set; }
    public HtmlNode ExpectedDateNode { get; private set; }
    public HtmlNode DownloadsNode { get; private set; }
    public HtmlNode StarRatingNode { get; private set; }
    public HtmlNode ImageNode { get; private set; }
    public List<HtmlNode> GenreNodes { get; private set; }
    public List<HtmlNode> SearchTagNodes { get; private set; }
    public List<HtmlNode> CreatorNodes { get; private set; }

    public DLSiteHtmlNode(HtmlNode leftNode, HtmlNode rightNode, HtmlNode thumbNode)
    {
        LeftNode = leftNode;
        RightNode = rightNode;
        ThumbNode = thumbNode;

        ProductNode = LeftNode.SelectNodes(".//dt[@class='work_name']")[0];
        ProductLinkNode = ProductNode.SelectNodes(".//a")[0];
        ProductTextNode = GetProductTextNode();

        DescriptionNode = LeftNode.SelectNodes(".//dd[@class='work_text']")[0];

        MakerNode = LeftNode.SelectNodes(".//dd[@class='maker_name']")[0];
        MakerLinkNode = MakerNode.SelectNodes(".//a[contains(@href, 'maker_id')]")[0];

        ExpectedDateNode = GetExpectedDateNode();

        InitializeGenreNodes();
        InitializeSearchTagNodes();
        InitializeCreatorNodes();
        InitializeSalesAndDownloadsNodes();
        InitializeStarRatingNode();
        InitializeImageNode();
    }

    private void InitializeGenreNodes()
    {
        HtmlNode genreNode = LeftNode.SelectNodes(".//dd[@class='work_genre']")[0];

        GenreNodes = [.. genreNode.SelectNodes(".//span")];
    }

    private void InitializeSearchTagNodes()
    {
        HtmlNodeCollection searchTagNodes = LeftNode.SelectNodes(".//dd[@class='search_tag']");

        if (searchTagNodes == null || searchTagNodes.Count == 0)
        {
            SearchTagNodes = [];
        }
        else
        {
            HtmlNodeCollection searchTagNodesLinks = searchTagNodes[0].SelectNodes(".//a");

            if (searchTagNodesLinks == null || searchTagNodesLinks.Count == 0)
            {
                SearchTagNodes = [];
            }
            else
            {
                SearchTagNodes = [.. searchTagNodesLinks];
            }
        }
    }

    private void InitializeCreatorNodes()
    {
        HtmlNodeCollection creatorNodes = MakerNode.SelectNodes(".//a[contains(@href, 'keyword_creater')]");

        if (creatorNodes == null || creatorNodes.Count == 0)
        {
            CreatorNodes = [];
        }
        else
        {
            CreatorNodes = [.. creatorNodes];
        }
    }

    private void InitializeSalesAndDownloadsNodes()
    {
        HtmlNodeCollection workInfoBox = RightNode.SelectNodes(".//ul[@class='work_info_box']");

        if (workInfoBox != null)
        {
            HtmlNodeCollection salesDateNodes = workInfoBox[0].SelectNodes(".//li[@class='sales_date']");

            if (salesDateNodes != null && salesDateNodes.Count > 0)
            {
                SalesDateNode = salesDateNodes[0];
            }

            // TODO: Fix!
            //DownloadsNode = RightNode.SelectSingleNode(".//span[@class='_dl_count_" + works[rightsIndex].ProductId + "']");
            DownloadsNode = RightNode.SelectSingleNode(".//span[contains(@class, '_dl_count_')]");
        }
    }

    private void InitializeStarRatingNode()
    {
        var ratingsNode = RightNode.SelectSingleNode(".//li[@class='work_rating']");

        if (ratingsNode == null)
            return;

        StarRatingNode = ratingsNode.SelectSingleNode(".//div[contains(@class, 'star_rating')]");
    }

    private HtmlNode GetProductTextNode()
    {
        if (ProductLinkNode.ChildNodes.Count > 1 && ProductLinkNode.ChildNodes[0].Name == "#text")
        {
            return ProductLinkNode.ChildNodes[0];
        }
        else
        {
            return ProductLinkNode;
        }
    }

    private HtmlNode GetExpectedDateNode()
    {
        HtmlNodeCollection expectedDateNodes = ProductNode.SelectNodes(".//p[@class='expected_date']");

        if (expectedDateNodes != null && expectedDateNodes.Count > 0)
        {
            return expectedDateNodes[0];
        }
        else
        {
            return null;
        }
    }

    private void InitializeImageNode()
    {
        HtmlNode linkNode = ThumbNode.SelectNodes(".//a")[0];

        ImageNode = linkNode.SelectNodes(".//img")[0];
    }
}