1 files changed, 37 insertions, 0 deletions
diff --git a/users/wpcarro/website/sandbox/learnpianochords/src/server/Main.hs b/users/wpcarro/website/sandbox/learnpianochords/src/server/Main.hs
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index 0000000000..228c3363bc
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+++ b/users/wpcarro/website/sandbox/learnpianochords/src/server/Main.hs
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+--------------------------------------------------------------------------------
+module Main where
+--------------------------------------------------------------------------------
+import RIO
+import Prelude (putStr, putStrLn)
+
+import qualified Types as T
+import qualified System.Envy as Envy
+import qualified App
+--------------------------------------------------------------------------------
+
+-- | Attempt to read environment variables from the system and initialize the
+-- Context data type for our application.
+getAppContext :: IO (Either String T.Context)
+getAppContext = do
+  mEnv <- Envy.decodeEnv
+  case mEnv of
+    Left err -> pure $ Left err
+    Right T.Env{..} -> pure $ Right T.Context
+      { contextGoogleClientID = envGoogleClientID
+      , contextStripeAPIKey = envStripeAPIKey
+      , contextServerPort = envServerPort
+      , contextClientPort = envClientPort
+      }
+
+main :: IO ()
+main = do
+  mContext <- getAppContext
+  case mContext of
+    Left err -> putStrLn err
+    Right ctx -> do
+      result <- runRIO ctx App.run
+      case result of
+        Left err -> do
+          putStr "Something went wrong when executing the application: "
+          putStrLn $ show err
+        Right _ -> putStrLn "The application successfully executed."