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{-# LANGUAGE OverloadedStrings #-}
import           Data.Monoid (mappend)
import           Hakyll


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main :: IO ()
main = hakyll $ do
    match "images/**" $ do
        route   idRoute
        compile copyFileCompiler

    match "static/**" $ do
        route   idRoute -- preserve directory and name
        compile copyFileCompiler -- don't alter the contents of the file

    match "LICENSE.txt" $ do
        route   idRoute
        compile copyFileCompiler

    match "robots.txt" $ do
        route   idRoute
        compile copyFileCompiler

    match "js/*" $ do
        route   idRoute
        compile copyFileCompiler

    match "css/*" $ do
        route   idRoute
        compile compressCssCompiler

    match (fromList ["contact.md"]) $ do
        route   $ setExtension "html"
        compile $ pandocCompiler
            >>= loadAndApplyTemplate "templates/default.html" defaultContext
            >>= relativizeUrls

    match "blog/*" $ do
        route $ setExtension "html"
        compile $ pandocCompiler
            >>= loadAndApplyTemplate "templates/post.html"    postCtx
            >>= loadAndApplyTemplate "templates/default.html" postCtx
            >>= relativizeUrls

    create ["archive.html"] $ do
        route idRoute
        compile $ do
            posts <- recentFirst =<< loadAll "blog/*"
            let archiveCtx =
                    listField "posts" postCtx (return posts) `mappend`
                    constField "title" "Blog Posts"          `mappend`
                    defaultContext

            makeItem ""
                >>= loadAndApplyTemplate "templates/archive.html" archiveCtx
                >>= loadAndApplyTemplate "templates/default.html" archiveCtx
                >>= relativizeUrls

    match "about.html" $ do
        route idRoute
        compile $ do
            let indexCtx =
                    constField "title" "About" `mappend`
                    defaultContext

            getResourceBody
                >>= applyAsTemplate indexCtx
                >>= loadAndApplyTemplate "templates/default.html" indexCtx
                >>= relativizeUrls

    match "legal.html" $ do
        route idRoute
        compile $ do
            let indexCtx =
                    constField "title" "Legal Information" `mappend`
                    defaultContext

            getResourceBody
                >>= applyAsTemplate indexCtx
                >>= loadAndApplyTemplate "templates/default.html" indexCtx
                >>= relativizeUrls

    match "index.html" $ do
        route idRoute
        compile $ do
            posts <- recentFirst =<< loadAll "blog/*"
            let indexCtx =
                    listField "posts" postCtx (return posts) `mappend`
                    constField "title" "Home"                `mappend`
                    defaultContext

            getResourceBody
                >>= applyAsTemplate indexCtx
                >>= loadAndApplyTemplate "templates/default.html" indexCtx
                >>= relativizeUrls

    match "templates/*" $ compile templateBodyCompiler


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postCtx :: Context String
postCtx =
    dateField "date" "%B %e, %Y" `mappend`
    defaultContext
