{-# LANGUAGE OverloadedStrings #-}

-- | Core types and error definitions for Docster
module Docster.Types
  ( -- * Error Types
    DocsterError(..)
    
    -- * Output Format
  , OutputFormat(..)
    
    -- * Domain Types
  , SourceDir(..)
  , OutputPath(..)
  , DiagramId(..)
  , DiagramConfig(..)
  ) where

import Data.Text (Text)
import Control.Exception (Exception)

-- | Custom error types for comprehensive error handling
data DocsterError 
  = InvalidUsage Text
  | FileError Text
  | PDFGenerationError Text
  | ProcessError Text
  deriving (Show)

instance Exception DocsterError

-- | Output format for document generation
data OutputFormat = PDF | HTML 
  deriving (Show, Eq)

-- | Type-safe wrapper for source directory paths
newtype SourceDir = SourceDir FilePath 
  deriving (Show, Eq)

-- | Type-safe wrapper for output file paths
newtype OutputPath = OutputPath FilePath 
  deriving (Show, Eq)

-- | Type-safe wrapper for diagram identifiers
newtype DiagramId = DiagramId Text 
  deriving (Show, Eq)

-- | Configuration for diagram generation
data DiagramConfig = DiagramConfig
  { dcSourceDir :: SourceDir
  , dcOutputFormat :: OutputFormat
  } deriving (Show)