class PowerLineOutput {
    [ConsoleColor]$BackgroundColor
    [ConsoleColor]$ForegroundColor
    [Object]$Content
    [int]$Length
    [bool]$Clear = $false

    PowerLineOutput([hashtable]$values) {
        foreach($key in $values.Keys) {
            if("bg" -eq $key -or "BackgroundColor" -match "^$key") {
                $this.BackgroundColor = $values.$key
            }
            elseif("fg" -eq $key -or "ForegroundColor" -match "^$key") {
                $this.ForegroundColor = $values.$key
            }
            elseif("fg" -eq $key -or "ForegroundColor" -match "^$key") {
                $this.ForegroundColor = $values.$key
            }
            elseif("text" -match "^$key" -or "Content" -match "^$key") {
                $this.Content = $values.$key
            }
            elseif("Clear" -match "^$key") {
                $this.Clear = $values.$key
            }
            else {
                throw "Unknown key '$key' in hashtable. Allowed values are BackgroundColor, ForegroundColor, Content, and Clear"
            }
        }
   }

   [string] GetText() {
      if($this.Content -is [scriptblock]) {
         return & $this.Content
      } else {
         return $this.Content
      }
   }

   [string] ToString() {
      return $(
         if($this.BackgroundColor) {
            [PowerLineOutput]::EscapeCodes.bg."$($this.BackgroundColor)"
         } else {
            [PowerLineOutput]::EscapeCodes.bg.Clear
         }
      ) + $(
         if($this.ForegroundColor) {
            [PowerLineOutput]::EscapeCodes.fg."$($this.ForegroundColor)"
         } else {
            [PowerLineOutput]::EscapeCodes.fg.Clear
         }
      ) + $this.GetText() + $(
         if($this.Clear) {
            [PowerLineOutput]::EscapeCodes.bg.Clear
            [PowerLineOutput]::EscapeCodes.fg.Clear
         }
      )
   }

   static [hashtable] $EscapeCodes = @{
      ESC = ([char]27) + "["
      CSI = [char]155
      Clear = ([char]27) + "[0m"
      fg = @{
         Clear       = ([char]27) + "[39m"
         Black       = ([char]27) + "[30m";  DarkGray    = ([char]27) + "[90m"
         DarkRed     = ([char]27) + "[31m";  Red         = ([char]27) + "[91m"
         DarkGreen   = ([char]27) + "[32m";  Green       = ([char]27) + "[92m"
         DarkYellow  = ([char]27) + "[33m";  Yellow      = ([char]27) + "[93m"
         DarkBlue    = ([char]27) + "[34m";  Blue        = ([char]27) + "[94m"
         DarkMagenta = ([char]27) + "[35m";  Magenta     = ([char]27) + "[95m"
         DarkCyan    = ([char]27) + "[36m";  Cyan        = ([char]27) + "[96m"
         Gray        = ([char]27) + "[37m";  White       = ([char]27) + "[97m"
      }
      bg = @{
         Clear       = ([char]27) + "[49m"
         Black       = ([char]27) + "[40m"; DarkGray    = ([char]27) + "[100m"
         DarkRed     = ([char]27) + "[41m"; Red         = ([char]27) + "[101m"
         DarkGreen   = ([char]27) + "[42m"; Green       = ([char]27) + "[102m"
         DarkYellow  = ([char]27) + "[43m"; Yellow      = ([char]27) + "[103m"
         DarkBlue    = ([char]27) + "[44m"; Blue        = ([char]27) + "[104m"
         DarkMagenta = ([char]27) + "[45m"; Magenta     = ([char]27) + "[105m"
         DarkCyan    = ([char]27) + "[46m"; Cyan        = ([char]27) + "[106m"
         Gray        = ([char]27) + "[47m"; White       = ([char]27) + "[107m"
      }
   }
}