using System.IO;
using System.Xml;
using ln.build.semver;

namespace ln.build.support.dotnet
{

    public class CSProjHelper
    {
        public string FileName { get; set; }

        public CSProjHelper(string filename)
        {
            FileName = filename;
        }

        public string GetName()
        {
            XmlDocument projectFile = new XmlDocument();
            projectFile.Load(FileName);

            XmlNode nodeVersion = projectFile.SelectSingleNode("Project/PropertyGroup/AssemblyName");
            return nodeVersion?.InnerText ?? Path.GetFileNameWithoutExtension(FileName);
        }

        public SemVersion GetVersion()
        {
            XmlDocument projectFile = new XmlDocument();
            projectFile.Load(FileName);
            XmlNode nodeVersion = projectFile.SelectSingleNode("Project/PropertyGroup/Version");
            return SemVersion.Parse(nodeVersion.InnerText);
        }

        public void SetVersion(SemVersion version)
        {
            XmlDocument projectFile = new XmlDocument();
            projectFile.Load(FileName);
            
            XmlNode nodeVersion = projectFile.SelectSingleNode("Project/PropertyGroup/Version");
            nodeVersion.InnerText = version.ToString();

            projectFile.Save(FileName);
        }

        public bool IsPackable()
        {
            XmlDocument projectFile = new XmlDocument();
            projectFile.Load(FileName);
            XmlNode nodePackable = projectFile.SelectSingleNode("Project/PropertyGroup/IsPackable");
            return bool.Parse(nodePackable?.InnerText ?? "true");
        }

        public string GetOutputType()
        {
            XmlDocument projectFile = new XmlDocument();
            projectFile.Load(FileName);

            XmlNode nodeVersion = projectFile.SelectSingleNode("Project/PropertyGroup/OutputType");
            return nodeVersion?.InnerText ?? "Library";
        }

    }

}