-- |
-- Module      : Test.Amazonka.Util
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : provisional
-- Portability : non-portable (GHC extensions)
module Test.Amazonka.Util where

import Amazonka.Data
import Amazonka.Prelude
import qualified Data.Aeson as Aeson
import qualified Data.ByteString.Lazy as LBS
import Language.Haskell.TH
import Language.Haskell.TH.Quote
import Test.Tasty
import Test.Tasty.HUnit

doc :: QuasiQuoter
doc =
  QuasiQuoter
    { quoteExp = stringE,
      quotePat = const $ error "No quotePat  defined.",
      quoteType = const $ error "No quoteType defined.",
      quoteDec = const $ error "No quoteDec  defined."
    }

-- | Dummy root element for testing nested structures.
newtype X a = X a
  deriving stock (Eq, Show)

instance ToQuery a => ToQuery (X a) where
  toQuery (X x) = "x" =: x

instance FromXML a => FromXML (X a) where
  parseXML = fmap X . parseXML

instance ToXML a => ToElement (X a) where
  toElement (X x) = mkElement "x" x

instance FromJSON a => FromJSON (X a) where
  parseJSON = withObject "X" (fmap X . (.: "x"))

instance ToJSON a => ToJSON (X a) where
  toJSON (X x) = object ["x" .= x]

testFromText ::
  (FromText a, Show a, Eq a) =>
  TestName ->
  Text ->
  a ->
  TestTree
testFromText n t x = testCase n (Right x @?= fromText t)

testToText ::
  (ToText a, Show a, Eq a) =>
  TestName ->
  Text ->
  a ->
  TestTree
testToText n t x = testCase n (t @?= toText x)

testToQuery ::
  (ToQuery a, Show a, Eq a) =>
  TestName ->
  ByteString ->
  a ->
  TestTree
testToQuery n bs x = testCase n (bs @=? toBS (toQuery (X x)))

testFromXML ::
  (FromXML a, Show a, Eq a) =>
  TestName ->
  ByteStringLazy ->
  a ->
  TestTree
testFromXML n bs x =
  testCase n $
    Right (X x) @?= (decodeXML (wrapXML bs) >>= parseXML)

testToXML ::
  (ToXML a, Show a, Eq a) =>
  TestName ->
  ByteStringLazy ->
  a ->
  TestTree
testToXML n bs x = testCase n $ wrapXML bs @?= encodeXML (X x)

testFromJSON ::
  (FromJSON a, Show a, Eq a) =>
  TestName ->
  ByteStringLazy ->
  a ->
  TestTree
testFromJSON n bs x =
  testCase n $
    Right (X x) @?= eitherDecode' ("{\"x\":" <> bs <> "}")

testToJSON ::
  (ToJSON a, Show a, Eq a) =>
  TestName ->
  ByteStringLazy ->
  a ->
  TestTree
testToJSON n bs x = testCase n (bs @?= Aeson.encode x)

str :: ByteStringLazy -> ByteStringLazy
str bs = "\"" <> bs <> "\""

wrapXML :: ByteStringLazy -> ByteStringLazy
wrapXML bs =
  "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" <> "<x>" <> bs <> "</x>"

maxInt :: Int
maxInt = maxBound

minInt :: Int
minInt = minBound

toLazyBS :: ToByteString a => a -> ByteStringLazy
toLazyBS = LBS.fromStrict . toBS