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Embed loaded data as json into meta tag for front-end 

- front-end can take this and build the initial model, otherwise it
  will just render a blank page
This commit is contained in:
towards-a-new-leftypol 2024-03-27 15:35:06 -04:00
parent 16a84035da
commit 5ca711cb6d
1 changed files with 21 additions and 6 deletions
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27
app/Main.hs
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@ -7,6 +7,7 @@ module Main where
import System.Exit (exitFailure)
import Control.Monad.IO.Class (liftIO)
import Data.Text (Text, pack)
import Data.Text.Lazy (toStrict)
import Miso (ToServerRoutes, View)
import Miso.String (toMisoString)
import Data.Proxy
@ -28,7 +29,8 @@ import qualified Lucid.Base as L
import qualified Data.ByteString.Lazy as B
import Data.ByteString.Lazy.UTF8 (fromString)
import System.Console.CmdArgs (cmdArgs, Data, Typeable)
import Data.Aeson (decode)
import Data.Aeson (decode, ToJSON)
import Data.Aeson.Text (encodeToLazyText)
import Data.Time.Clock (getCurrentTime)
import Control.Monad.Except (throwError)
import Data.Time.Clock (UTCTime)
@ -46,11 +48,11 @@ import Common.Network.CatalogPostType (CatalogPost)
import qualified Common.Component.CatalogGrid as Grid
import qualified Common.Component.TimeControl as TC
newtype HtmlPage a = HtmlPage (JSONSettings, a)
data HtmlPage a = forall b. (ToJSON b) => HtmlPage (JSONSettings, b, a)
instance (L.ToHtml a) => L.ToHtml (HtmlPage a) where
toHtmlRaw = L.toHtml
toHtml (HtmlPage (settings, x)) = do
toHtml (HtmlPage (settings, initial_data, x)) = do
L.doctype_
L.head_ $ do
L.meta_ [L.charset_ "utf-8"]
@ -58,6 +60,7 @@ instance (L.ToHtml a) => L.ToHtml (HtmlPage a) where
L.meta_ [L.name_ "postgrest-root", L.content_ (pack $ postgrest_url settings)]
L.meta_ [L.name_ "postgrest-fetch-count", L.content_ (pack $ show $ postgrest_fetch_count settings)]
L.meta_ [L.name_ "media-root", L.content_ (pack $ media_root settings)]
L.meta_ [L.name_ "initial-data", L.content_ (toStrict $ encodeToLazyText initial_data) ]
L.title_ "Chandlr"
@ -79,6 +82,18 @@ instance (L.ToHtml a) => L.ToHtml (HtmlPage a) where
static_root = pack $ static_serve_url_root settings
type FrontEndRoutes = ToServerRoutes FE.Route HtmlPage FE.Action
{-
:Created By:
___________ _____ ______
/\________ \ /\ __`\ /\_____\
\/_______//'/' __ _ __\ \ \/\ \\/_____/
//'/' /'__`\/\`'__\ \ \ \ \
//'/'_______ /\ __/\ \ \/ \ \ \_\ \
/\___________\ \____\\ \_\ \ \_____\
\/___________/\/____/ \/_/ \/_____/
-}
type StaticRoute = "static" :> Servant.Raw
@ -120,7 +135,7 @@ catalogView settings = do
where
render :: UTCTime -> [ CatalogPost ] -> HtmlPage (View FE.Action)
render t posts = HtmlPage (settings, FE.catalogView model)
render t posts = HtmlPage (settings, posts, FE.catalogView model)
where
model = FE.Model
{ FE.grid_model = grid_model
@ -141,10 +156,10 @@ catalogView settings = do
tc_model = TC.Model 0
threadView :: Text -> Text -> FE.BoardThreadId -> Handler (HtmlPage (View FE.Action))
threadView _ _ _ = throwError $ err404 { errBody = "404 - Not Found" }
threadView _ _ _ = throwError $ err404 { errBody = "404 - Not Implemented" }
searchView :: Maybe Text -> Handler (HtmlPage (View FE.Action))
searchView _ = throwError $ err404 { errBody = "404 - Not Found" }
searchView _ = throwError $ err404 { errBody = "404 - Not Implemented" }
app :: JSONSettings -> Wai.Application
app settings =