{-# LANGUAGE FlexibleContexts #-}

module Opaleye.Values(
  values,
  -- * Explicit versions
  valuesExplicit,
  -- * Adaptors
  V.Valuesspec,
  V.valuesspecField,
  -- * Deprecated versions
  valuesSafe,
  valuesSafeExplicit,
  valuesUnsafe,
  valuesUnsafeExplicit,
  V.ValuesspecSafe,
  ) where

import qualified Opaleye.Internal.QueryArr as Q
import qualified Opaleye.Internal.Tag as Tag
import           Opaleye.Internal.Values as V
import qualified Opaleye.Internal.Unpackspec as U
import qualified Opaleye.Select              as S

import           Data.Profunctor.Product.Default (Default, def)

{-# DEPRECATED valuesUnsafe "Use 'values' instead.  Will be removed in 0.10." #-}
valuesUnsafe :: (Default V.ValuesspecUnsafe fields fields,
                 Default U.Unpackspec fields fields) =>
                [fields] -> S.Select fields
valuesUnsafe :: [fields] -> Select fields
valuesUnsafe = Unpackspec fields fields
-> ValuesspecUnsafe fields fields -> [fields] -> Select fields
forall fields fields'.
Unpackspec fields fields'
-> ValuesspecUnsafe fields fields' -> [fields] -> Select fields'
valuesUnsafeExplicit Unpackspec fields fields
forall (p :: * -> * -> *) a b. Default p a b => p a b
def ValuesspecUnsafe fields fields
forall (p :: * -> * -> *) a b. Default p a b => p a b
def

{-# DEPRECATED valuesUnsafeExplicit "Use 'values' instead.  Will be removed in 0.10." #-}
valuesUnsafeExplicit :: U.Unpackspec fields fields'
                     -> V.ValuesspecUnsafe fields fields'
                     -> [fields] -> S.Select fields'
valuesUnsafeExplicit :: Unpackspec fields fields'
-> ValuesspecUnsafe fields fields' -> [fields] -> Select fields'
valuesUnsafeExplicit Unpackspec fields fields'
unpack ValuesspecUnsafe fields fields'
valuesspec [fields]
fields =
  State Tag (fields', PrimQuery) -> Select fields'
forall a. State Tag (a, PrimQuery) -> Query a
Q.productQueryArr (State Tag (fields', PrimQuery) -> Select fields')
-> State Tag (fields', PrimQuery) -> Select fields'
forall a b. (a -> b) -> a -> b
$ do
  Tag
t <- State Tag Tag
Tag.fresh
  (fields', PrimQuery) -> State Tag (fields', PrimQuery)
forall (f :: * -> *) a. Applicative f => a -> f a
pure (Unpackspec fields fields'
-> ValuesspecUnsafe fields fields'
-> [fields]
-> ((), Tag)
-> (fields', PrimQuery)
forall columns columns'.
Unpackspec columns columns'
-> ValuesspecUnsafe columns columns'
-> [columns]
-> ((), Tag)
-> (columns', PrimQuery)
V.valuesU Unpackspec fields fields'
unpack ValuesspecUnsafe fields fields'
valuesspec [fields]
fields ((), Tag
t))

-- | 'values' implements Postgres's @VALUES@ construct and allows you
-- to create a @SELECT@ that consists of the given rows.
--
-- Example type specialization:
--
-- @
-- values :: [(Field a, Field b)] -> Select (Field a, Field b)
-- @
--
-- Assuming the @makeAdaptorAndInstance@ splice has been run for the
-- product type @Foo@:
--
-- @
-- values :: [Foo (Field a) (Field b) (Field c)] -> S.Select (Foo (Field a) (Field b) (Field c))
-- @
values :: Default V.Valuesspec fields fields
       => [fields] -> S.Select fields
values :: [fields] -> Select fields
values = Valuesspec fields fields -> [fields] -> Select fields
forall fields fields'.
Valuesspec fields fields' -> [fields] -> Select fields'
valuesExplicit Valuesspec fields fields
forall (p :: * -> * -> *) a b. Default p a b => p a b
def

valuesExplicit :: V.Valuesspec fields fields'
               -> [fields] -> S.Select fields'
valuesExplicit :: Valuesspec fields fields' -> [fields] -> Select fields'
valuesExplicit Valuesspec fields fields'
valuesspec [fields]
fields =
  State Tag (fields', PrimQuery) -> Select fields'
forall a. State Tag (a, PrimQuery) -> Query a
Q.productQueryArr (State Tag (fields', PrimQuery) -> Select fields')
-> State Tag (fields', PrimQuery) -> Select fields'
forall a b. (a -> b) -> a -> b
$ do
    Tag
t <- State Tag Tag
Tag.fresh
    (fields', PrimQuery) -> State Tag (fields', PrimQuery)
forall (f :: * -> *) a. Applicative f => a -> f a
pure (Valuesspec fields fields'
-> [fields] -> ((), Tag) -> (fields', PrimQuery)
forall columns columns'.
Valuesspec columns columns'
-> [columns] -> ((), Tag) -> (columns', PrimQuery)
V.valuesUSafe Valuesspec fields fields'
valuesspec [fields]
fields ((), Tag
t))

{-# DEPRECATED valuesSafe "Use 'values' instead.  Will be removed in 0.10." #-}
valuesSafe :: Default V.Valuesspec fields fields
           => [fields] -> S.Select fields
valuesSafe :: [fields] -> Select fields
valuesSafe = [fields] -> Select fields
forall fields.
Default Valuesspec fields fields =>
[fields] -> Select fields
values

{-# DEPRECATED valuesSafeExplicit "Use 'values' instead.  Will be removed in 0.10." #-}
valuesSafeExplicit :: V.Valuesspec fields fields'
                   -> [fields] -> S.Select fields'
valuesSafeExplicit :: Valuesspec fields fields' -> [fields] -> Select fields'
valuesSafeExplicit = Valuesspec fields fields' -> [fields] -> Select fields'
forall fields fields'.
Valuesspec fields fields' -> [fields] -> Select fields'
valuesExplicit