```{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FunctionalDependencies #-}

module Data.Aviation.WB.Avgas100LL(
Avgas100LL(..)
) where

import Control.Category((.))
import Control.Lens(Iso', from)
import Data.Aviation.Units.USGallons(usgallons)
import Data.Aviation.Units.Pounds(pounds)
import Data.Aviation.WB.Weight(Weight)
import Data.Aviation.WB.Volume(Volume)
import Numeric.Lens(multiplying)

class Avgas100LL a b | a -> b, b -> a where
avgas100LL ::
Iso' a b

instance Avgas100LL Volume Weight where
avgas100LL :: p Weight (f Weight) -> p Volume (f Volume)
avgas100LL =
AnIso Rational Rational Volume Volume
-> Iso Volume Volume Rational Rational
forall s t a b. AnIso s t a b -> Iso b a t s
from AnIso Rational Rational Volume Volume
forall a. USGallons a => Iso' Rational a
usgallons (p Rational (f Rational) -> p Volume (f Volume))
-> (p Weight (f Weight) -> p Rational (f Rational))
-> p Weight (f Weight)
-> p Volume (f Volume)
forall k (cat :: k -> k -> *) (b :: k) (c :: k) (a :: k).
Category cat =>
cat b c -> cat a b -> cat a c
. Rational -> Iso' Rational Rational
forall a. (Fractional a, Eq a) => a -> Iso' a a
multiplying Rational
6 (p Rational (f Rational) -> p Rational (f Rational))
-> (p Weight (f Weight) -> p Rational (f Rational))
-> p Weight (f Weight)
-> p Rational (f Rational)
forall k (cat :: k -> k -> *) (b :: k) (c :: k) (a :: k).
Category cat =>
cat b c -> cat a b -> cat a c
. p Weight (f Weight) -> p Rational (f Rational)
forall a. Pounds a => Iso' Rational a
pounds

instance Avgas100LL Weight Volume where
avgas100LL :: p Volume (f Volume) -> p Weight (f Weight)
avgas100LL =
AnIso Volume Volume Weight Weight -> Iso' Weight Volume
forall s t a b. AnIso s t a b -> Iso b a t s
from AnIso Volume Volume Weight Weight
forall a b. Avgas100LL a b => Iso' a b
avgas100LL
```