{-| This is a helper module for the "Puppet.Daemon" module -}
module Puppet.Init where

import Puppet.Interpreter.Types
import Puppet.NativeTypes
import Puppet.NativeTypes.Helpers
import Puppet.Plugins

import qualified Data.Map as Map

data Prefs = Prefs {
    manifest :: FilePath, -- ^ The path to the manifests.
    modules :: FilePath, -- ^ The path to the modules.
    templates :: FilePath, -- ^ The path to the template.
    compilepoolsize :: Int, -- ^ Size of the compiler pool.
    parsepoolsize :: Int, -- ^ Size of the parser pool.
    puppetDBurl :: Maybe String, -- ^ Url of the PuppetDB connector (must be cleartext).
    natTypes :: Map.Map PuppetTypeName PuppetTypeMethods -- ^ The list of native types.
}

-- | Generates the 'Prefs' structure from a single path.
--
-- > genPrefs "/etc/puppet"
genPrefs :: String -> IO Prefs
genPrefs basedir = do
    let manifestdir = basedir ++ "/manifests"
        modulesdir  = basedir ++ "/modules"
        templatedir = basedir ++ "/templates"
    typenames <- fmap (map getBasename) (getFiles modulesdir "lib/puppet/type" ".rb")
    let loadedTypes = Map.fromList (map defaulttype typenames)
    return $ Prefs manifestdir modulesdir templatedir 1 1 Nothing (Map.union baseNativeTypes loadedTypes)

-- | Generates 'Facts' from pairs of strings.
--
-- > genFacts [("hostname","test.com")]
genFacts :: [(String,String)] -> Facts
genFacts = Map.fromList . concatMap (\(a,b) -> [(a, ResolvedString b), ("::" ++ a, ResolvedString b)])