93 lines
3 KiB
Haskell
93 lines
3 KiB
Haskell
module Utilities where
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import Config
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import Control.Monad (filterM)
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import Data.Aeson (Result (Error, Success))
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import qualified Data.Aeson as A
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import Data.List (find)
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import Data.Text (Text)
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import qualified Data.Text as T
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import Data.Text.Encoding (encodeUtf8)
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import Data.Time
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import Data.Time.Format.ISO8601 (iso8601Show)
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import Data.Yaml.Aeson
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import Development.Shake (Action)
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import qualified Development.Shake as Shake
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import Development.Shake.FilePath ((<.>), (</>))
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import qualified Development.Shake.FilePath as FP
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import HTML
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import Markdown
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import Text.Parsec hiding (Error)
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import Types
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indexHtmlOutputPath :: FilePath -> FilePath
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indexHtmlOutputPath srcPath =
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outputDir </> FP.dropExtension srcPath </> "index.html"
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-- were applicative shenanigans necessary? no
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-- but using them felt cool
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indexHtmlSourcePaths :: FilePath -> [FilePath]
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indexHtmlSourcePaths path = [indexHtmlMarkdownSourcePath] <*> [path]
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indexHtmlMarkdownSourcePath :: FilePath -> FilePath
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indexHtmlMarkdownSourcePath =
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FP.dropDirectory1
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. (<.> "md")
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. FP.dropTrailingPathSeparator
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. FP.dropFileName
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markdownToHtml :: (FromJSON a) => FilePath -> Action (a, Text)
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markdownToHtml filePath = do
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content <- Shake.readFile' filePath
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-- TODO: error handling
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let Right (metadataText, document) = parse (liftA2 (,) Markdown.metadata Markdown.document) filePath content
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let Right metadata = decodeEither' $ encodeUtf8 metadataText
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pure (metadata, compileToHTML document)
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now :: Action T.Text
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now = Shake.liftIO $ fmap (T.pack . iso8601Show) getCurrentTime
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markdownToPost :: FilePath -> Action Post
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markdownToPost path = do
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content <- Shake.readFile' path
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-- TODO: error handling
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let Right postData = parse Markdown.metadata path content
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let Right post = decodeEither' $ encodeUtf8 postData
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pure post
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yamlToPost :: FilePath -> Action Post
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yamlToPost path = do
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post <- decodeFileThrow path
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-- let post' = dateTransform post
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return post
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isMarkdownPost :: FilePath -> Bool
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isMarkdownPost path = FP.takeExtension path == ".md"
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postHandles :: [(FilePath -> Bool, FilePath -> Action Post)]
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postHandles = [(isMarkdownPost, markdownToPost)]
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isDraft :: FilePath -> Action Bool
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isDraft path = do
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let action =
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case find (\(test, _) -> test path) postHandles of
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(Just (_, action')) -> action'
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Nothing -> error "no post handle for this file type"
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post <- action path
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return $ case postDraft post of
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Just ret -> ret
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Nothing -> (error $ "Missing draft attr: " ++ path)
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getPublishedPosts :: Action [FilePath]
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getPublishedPosts = do
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postPaths <- Shake.getDirectoryFiles "" postGlobs
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filterM (fmap not . isDraft) postPaths
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parseDate :: Text -> Maybe Text
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parseDate str = do
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date <- parseTimeM False defaultTimeLocale "%Y-%-m-%-d" $ T.unpack str
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-- need to append the time to avoid potential issues
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return $ T.pack $ formatTime @UTCTime defaultTimeLocale "%Y-%m-%dT00:00:00Z" date
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urlConvert :: FilePath -> Text
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urlConvert = T.pack . FP.dropFileName . flip FP.replaceDirectory1 "https://pagwin.xyz"
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