{-# LANGUAGE CPP #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE ViewPatterns #-}
#include "thyme.h"
#if HLINT
#include "cabal_macros.h"
#endif
module Data.Thyme.Calendar.WeekdayOfMonth
( Year, Month, DayOfWeek
, module Data.Thyme.Calendar.WeekdayOfMonth
) where
import Prelude
#if !MIN_VERSION_base(4,8,0)
import Control.Applicative
#endif
import Control.Arrow
import Control.DeepSeq
import Control.Lens
import Control.Monad
import Data.AffineSpace
import Data.Bits
import Data.Data
import Data.Hashable
import Data.Thyme.Calendar
import Data.Thyme.Calendar.Internal
#if __GLASGOW_HASKELL__ == 704
import qualified Data.Vector.Generic
import qualified Data.Vector.Generic.Mutable
#endif
import Data.Vector.Unboxed.Deriving
import GHC.Generics (Generic)
import System.Random
import Test.QuickCheck hiding ((.&.))
data WeekdayOfMonth = WeekdayOfMonth
{ WeekdayOfMonth -> Year
womYear :: {-# UNPACK #-}!Year
, WeekdayOfMonth -> Year
womMonth :: {-# UNPACK #-}!Month
, WeekdayOfMonth -> Year
womNth :: {-# UNPACK #-}!Int
, WeekdayOfMonth -> Year
womDayOfWeek :: {-# UNPACK #-}!DayOfWeek
} deriving (INSTANCES_USUAL, Show)
LENS(WeekdayOfMonth,womYear,Year)
LENS(WeekdayOfMonth,womMonth,Month)
LENS(WeekdayOfMonth,womNth,Int)
LENS(WeekdayOfMonth,womDayOfWeek,DayOfWeek)
derivingUnbox "WeekdayOfMonth"
[t| WeekdayOfMonth -> Int |]
[| \ WeekdayOfMonth {..} -> shiftL womYear 11 .|. shiftL womMonth 7
.|. shiftL (womNth + 5) 3 .|. womDayOfWeek |]
[| \ n -> WeekdayOfMonth (shiftR n 11) (shiftR n 7 .&. 0xf)
(shiftR n 3 - 5) (n .&. 0x7) |]
instance Hashable WeekdayOfMonth
instance NFData WeekdayOfMonth
instance Bounded WeekdayOfMonth where
minBound :: WeekdayOfMonth
minBound = forall a. Bounded a => a
minBound forall s a. s -> Getting a s a -> a
^. Iso' Day WeekdayOfMonth
weekdayOfMonth
maxBound :: WeekdayOfMonth
maxBound = forall a. Bounded a => a
maxBound forall s a. s -> Getting a s a -> a
^. Iso' Day WeekdayOfMonth
weekdayOfMonth
instance Random WeekdayOfMonth where
randomR :: forall g.
RandomGen g =>
(WeekdayOfMonth, WeekdayOfMonth) -> g -> (WeekdayOfMonth, g)
randomR = forall s g a.
(Random s, RandomGen g) =>
Iso' s a -> (a, a) -> g -> (a, g)
randomIsoR Iso' Day WeekdayOfMonth
weekdayOfMonth
random :: forall g. RandomGen g => g -> (WeekdayOfMonth, g)
random = forall (a :: * -> * -> *) b c d.
Arrow a =>
a b c -> a (b, d) (c, d)
first (forall s a. s -> Getting a s a -> a
^. Iso' Day WeekdayOfMonth
weekdayOfMonth) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a g. (Random a, RandomGen g) => g -> (a, g)
random
instance Arbitrary WeekdayOfMonth where
arbitrary :: Gen WeekdayOfMonth
arbitrary = forall a s. Getting a s a -> s -> a
view Iso' Day WeekdayOfMonth
weekdayOfMonth forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall a. Arbitrary a => Gen a
arbitrary
shrink :: WeekdayOfMonth -> [WeekdayOfMonth]
shrink WeekdayOfMonth
wom = forall a s. Getting a s a -> s -> a
view Iso' Day WeekdayOfMonth
weekdayOfMonth forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall a. Arbitrary a => a -> [a]
shrink (Iso' Day WeekdayOfMonth
weekdayOfMonth forall s t a b. AReview s t a b -> b -> t
# WeekdayOfMonth
wom)
instance CoArbitrary WeekdayOfMonth where
coarbitrary :: forall b. WeekdayOfMonth -> Gen b -> Gen b
coarbitrary (WeekdayOfMonth Year
y Year
m Year
n Year
d)
= forall a b. CoArbitrary a => a -> Gen b -> Gen b
coarbitrary Year
y forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. CoArbitrary a => a -> Gen b -> Gen b
coarbitrary Year
m
forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. CoArbitrary a => a -> Gen b -> Gen b
coarbitrary Year
n forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. CoArbitrary a => a -> Gen b -> Gen b
coarbitrary Year
d
{-# INLINE weekdayOfMonth #-}
weekdayOfMonth :: Iso' Day WeekdayOfMonth
weekdayOfMonth :: Iso' Day WeekdayOfMonth
weekdayOfMonth = forall s a b t. (s -> a) -> (b -> t) -> Iso s t a b
iso Day -> WeekdayOfMonth
toWeekday WeekdayOfMonth -> Day
fromWeekday where
{-# INLINEABLE toWeekday #-}
toWeekday :: Day -> WeekdayOfMonth
toWeekday :: Day -> WeekdayOfMonth
toWeekday day :: Day
day@(forall a s. Getting a s a -> s -> a
view Iso' Day OrdinalDate
ordinalDate -> OrdinalDate
ord) = Year -> Year -> Year -> Year -> WeekdayOfMonth
WeekdayOfMonth Year
y Year
m Year
n Year
wd where
YearMonthDay Year
y Year
m Year
d = OrdinalDate
ord forall s a. s -> Getting a s a -> a
^. Iso' OrdinalDate YearMonthDay
yearMonthDay
WeekDate Year
_ Year
_ Year
wd = OrdinalDate -> Day -> WeekDate
toWeekOrdinal OrdinalDate
ord Day
day
n :: Year
n = Year
1 forall a. Num a => a -> a -> a
+ forall a. Integral a => a -> a -> a
div (Year
d forall a. Num a => a -> a -> a
- Year
1) Year
7
{-# INLINEABLE fromWeekday #-}
fromWeekday :: WeekdayOfMonth -> Day
fromWeekday :: WeekdayOfMonth -> Day
fromWeekday (WeekdayOfMonth Year
y Year
m Year
n Year
wd) = Day
refDay forall p. AffineSpace p => p -> Diff p -> p
.+^ Year
s forall a. Num a => a -> a -> a
* Year
offset where
refOrd :: OrdinalDate
refOrd = Iso' OrdinalDate YearMonthDay
yearMonthDay forall s t a b. AReview s t a b -> b -> t
# Year -> Year -> Year -> YearMonthDay
YearMonthDay Year
y Year
m
(if Year
n forall a. Ord a => a -> a -> Bool
< Year
0 then Bool -> Year -> Year
monthLength (Year -> Bool
isLeapYear Year
y) Year
m else Year
1)
refDay :: Day
refDay = Iso' Day OrdinalDate
ordinalDate forall s t a b. AReview s t a b -> b -> t
# OrdinalDate
refOrd
WeekDate Year
_ Year
_ Year
wd1 = OrdinalDate -> Day -> WeekDate
toWeekOrdinal OrdinalDate
refOrd Day
refDay
s :: Year
s = forall a. Num a => a -> a
signum Year
n
wo :: Year
wo = Year
s forall a. Num a => a -> a -> a
* (Year
wd forall a. Num a => a -> a -> a
- Year
wd1)
offset :: Year
offset = (forall a. Num a => a -> a
abs Year
n forall a. Num a => a -> a -> a
- Year
1) forall a. Num a => a -> a -> a
* Year
7 forall a. Num a => a -> a -> a
+ if Year
wo forall a. Ord a => a -> a -> Bool
< Year
0 then Year
wo forall a. Num a => a -> a -> a
+ Year
7 else Year
wo
{-# INLINEABLE weekdayOfMonthValid #-}
weekdayOfMonthValid :: WeekdayOfMonth -> Maybe Day
weekdayOfMonthValid :: WeekdayOfMonth -> Maybe Day
weekdayOfMonthValid (WeekdayOfMonth Year
y Year
m Year
n Year
wd) = (Day
refDay forall p. AffineSpace p => p -> Diff p -> p
.+^ Year
s forall a. Num a => a -> a -> a
* Year
offset)
forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (f :: * -> *). Alternative f => Bool -> f ()
guard (Year
n forall a. Eq a => a -> a -> Bool
/= Year
0 Bool -> Bool -> Bool
&& Year
1 forall a. Ord a => a -> a -> Bool
<= Year
wd Bool -> Bool -> Bool
&& Year
wd forall a. Ord a => a -> a -> Bool
<= Year
7 Bool -> Bool -> Bool
&& Year
offset forall a. Ord a => a -> a -> Bool
< Year
len) where
len :: Year
len = Bool -> Year -> Year
monthLength (Year -> Bool
isLeapYear Year
y) Year
m
refOrd :: OrdinalDate
refOrd = Iso' OrdinalDate YearMonthDay
yearMonthDay forall s t a b. AReview s t a b -> b -> t
# Year -> Year -> Year -> YearMonthDay
YearMonthDay Year
y Year
m (if Year
n forall a. Ord a => a -> a -> Bool
< Year
0 then Year
len else Year
1)
refDay :: Day
refDay = Iso' Day OrdinalDate
ordinalDate forall s t a b. AReview s t a b -> b -> t
# OrdinalDate
refOrd
WeekDate Year
_ Year
_ Year
wd1 = OrdinalDate -> Day -> WeekDate
toWeekOrdinal OrdinalDate
refOrd Day
refDay
s :: Year
s = forall a. Num a => a -> a
signum Year
n
wo :: Year
wo = Year
s forall a. Num a => a -> a -> a
* (Year
wd forall a. Num a => a -> a -> a
- Year
wd1)
offset :: Year
offset = (forall a. Num a => a -> a
abs Year
n forall a. Num a => a -> a -> a
- Year
1) forall a. Num a => a -> a -> a
* Year
7 forall a. Num a => a -> a -> a
+ if Year
wo forall a. Ord a => a -> a -> Bool
< Year
0 then Year
wo forall a. Num a => a -> a -> a
+ Year
7 else Year
wo