using Abp.Reflection.Extensions;

namespace VberAdmin.Web;

/// <summary>
/// This class is used to find root path of the web project in;
/// unit tests (to find views) and entity framework core command line commands (to find conn string).
/// </summary>
public static class WebContentDirectoryFinder
{
    /// <summary>
    /// 获取 WebMvc/WebHost 根目录
    /// </summary>
    /// <returns></returns>
    /// <exception cref="Exception"></exception>
    public static string CalculateContentRootFolder()
    {
        var coreAssemblyDirectoryPath = Path.GetDirectoryName(typeof(VberAdminCoreModule).GetAssembly().Location);
        if (coreAssemblyDirectoryPath == null)
        {
            throw new Exception("Could not find location of VberAdmin.Core assembly!");
        }

        var directoryInfo = new DirectoryInfo(coreAssemblyDirectoryPath);
        while (!DirectoryContains(directoryInfo.FullName, "VberAdmin_V4.0.1_2022.sln"))
        {
            directoryInfo = directoryInfo.Parent ?? throw new Exception("Could not find content root folder!");
        }

        var webMvcFolder = Path.Combine(directoryInfo.FullName, "src", "VberAdmin.Web.Mvc");
        if (Directory.Exists(webMvcFolder))
        {
            return webMvcFolder;
        }

        var webHostFolder = Path.Combine(directoryInfo.FullName, "src", "VberAdmin.Web.Host");
        if (Directory.Exists(webHostFolder))
        {
            return webHostFolder;
        }

        throw new Exception("Could not find root folder of the web project!");
    }

    private static bool DirectoryContains(string directory, string fileName)
    {
        return Directory.GetFiles(directory).Any(filePath => string.Equals(Path.GetFileName(filePath), fileName));
    }
}