module Sct
    class Config

        WINDOWS = "Windows"
        MAC_OS = "MacOS"
        UBUNTU = "Ubuntu"

        def self.dir
            user = ENV["SUDO_USER"] || ENV["USER"]

            if self.operatingSystem == MAC_OS
                home = "/Users"
            else
                home = "/home"
            end

            return "#{home}/#{user}/.config/sct"
        end

        def self.path
            return File.expand_path(File.join(self.dir, 'config'))
        end

        def self.exists
            return File.exists?(Config.path)
        end

        def self.get(key)
            config = self.read

            if !config.key?(key)
                return nil
            end

            return config[key]
        end

        def self.read
            if !self.exists
                return {}
            end

            contents = File.read(self.path)

            return Sct::Helpers.to_hash(contents)
        end

        def self.operatingSystem
            proc = `uname -a`

            case proc
                when /Microsoft/
                    os = WINDOWS
                when /Darwin/
                    os = MAC_OS
                else
                    os = UBUNTU
            end

            return os
        end

        ###
        # Get the actual home path of the user. This may be different depending on the operating system
        ###
        def self.getTrueHomePath
            home_path = `echo ~`
            if self.operatingSystem == WINDOWS
                home_path = self.convertWindowsToWSLPath(`cmd.exe /c echo %userprofile%`)
            end

            return home_path
        end

        def self.convertWindowsToWSLPath(path)
            if self.operatingSystem == WINDOWS
                return path.gsub(/C:\\/, '/mnt/c/').gsub(/\\\\/, "/").gsub(/\\/, '/').gsub(/\r\n?/, '')
            end

            return path
        end

        def self.convertWSLToWindowsPath(path)
            if self.operatingSystem == WINDOWS
                return path.gsub(/\/mnt\/c/, 'C:/').gsub(/\/\//, '/').gsub(/\\\\/, "/").gsub(/\r\n?/, '')
            end

            return path
        end
    end
end