module Hakyll.Alias
    ( aliasCtxt
    , personCtxt
    , licenseCtxt
    , journalCtxt
    ) where

import Prolog
import Hakyll
import Data.Alias
import Data.Name
import Data.Person
import Data.Journal
import Data.License
import Text.Blaze

import Hakyll.Web.Template.Util (functionField1)


aliasCtxt :: (Ord a, FromAlias a x) => String -> (String -> Compiler a) -> (x -> Compiler String) -> AliasMap a x -> Context c
aliasCtxt name toa fromx amap = functionField1 name $ toa >=> flip resolveAlias amap >=> fromx

aliasCtxtFrom :: (Ord a, FromAlias a x) => String -> (String -> Compiler a) -> (x -> Compiler String) -> Identifier -> Context c
aliasCtxtFrom name toa fromx ident = functionField1 name $ \s -> do
    amap <- loadBody ident
    toa s >>= flip resolveAlias amap >>= fromx


-- personCtxt :: (StringConv StrictText s, Ord (Name s), ToMarkup s) => AliasMap (Name s) (Person s) -> Context a
personCtxt :: Identifier -> Context a
personCtxt = aliasCtxtFrom @StrictText "personA" (ffmap toSL . parseName . toSL) (pure . toSL . personHtml)

-- personCtxtFrom :: Identifier -> Context a
-- personCtxtFrom = functionField1

-- licenseCtxt :: (StringConv String s, Ord s, ToMarkup s) => AliasMap s (License s) -> Context a
licenseCtxt :: Identifier -> Context a
licenseCtxt = aliasCtxtFrom @StrictText "licenseA" (pure . toSL) (pure . toSL . licenseHtml)

-- journalCtxt :: (StringConv String s, Ord s, ToMarkup s) => AliasMap s (Journal s) -> Context a
journalCtxt :: Identifier -> Context a
journalCtxt = aliasCtxtFrom @StrictText "journalA" (pure . toSL) (pure . toSL . journalHtml)