13 files changed, 200 insertions, 0 deletions
diff --git a/server/src/Model/CreateCategory.hs b/server/src/Model/CreateCategory.hs
new file mode 100644
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+++ b/server/src/Model/CreateCategory.hs
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+module Model.CreateCategory
+  ( CreateCategory(..)
+  ) where
+
+import           Data.Text (Text)
+
+data CreateCategory = CreateCategory
+  { _createCategory_name  :: Text
+  , _createCategory_color :: Text
+  } deriving (Show)
diff --git a/server/src/Model/CreateIncome.hs b/server/src/Model/CreateIncome.hs
new file mode 100644
index 0000000..82451d2
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+++ b/server/src/Model/CreateIncome.hs
@@ -0,0 +1,10 @@
+module Model.CreateIncome
+  ( CreateIncome(..)
+  ) where
+
+import           Data.Time.Calendar (Day)
+
+data CreateIncome = CreateIncome
+  { _createIncome_amount :: Int
+  , _createIncome_date   :: Day
+  } deriving (Show)
diff --git a/server/src/Model/CreatePayment.hs b/server/src/Model/CreatePayment.hs
new file mode 100644
index 0000000..b25d2a4
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+++ b/server/src/Model/CreatePayment.hs
@@ -0,0 +1,16 @@
+module Model.CreatePayment
+  ( CreatePayment(..)
+  ) where
+
+import           Data.Text          (Text)
+import           Data.Time.Calendar (Day)
+
+import           Common.Model       (CategoryId, Frequency)
+
+data CreatePayment = CreatePayment
+  { _createPayment_name      :: Text
+  , _createPayment_cost      :: Int
+  , _createPayment_date      :: Day
+  , _createPayment_category  :: CategoryId
+  , _createPayment_frequency :: Frequency
+  } deriving (Show)
diff --git a/server/src/Model/EditCategory.hs b/server/src/Model/EditCategory.hs
new file mode 100644
index 0000000..8ee26ac
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+++ b/server/src/Model/EditCategory.hs
@@ -0,0 +1,13 @@
+module Model.EditCategory
+  ( EditCategory(..)
+  ) where
+
+import           Data.Text    (Text)
+
+import           Common.Model (CategoryId)
+
+data EditCategory = EditCategory
+  { _editCategory_id    :: CategoryId
+  , _editCategory_name  :: Text
+  , _editCategory_color :: Text
+  } deriving (Show)
diff --git a/server/src/Model/EditIncome.hs b/server/src/Model/EditIncome.hs
new file mode 100644
index 0000000..ac3d311
--- /dev/null
+++ b/server/src/Model/EditIncome.hs
@@ -0,0 +1,13 @@
+module Model.EditIncome
+  ( EditIncome(..)
+  ) where
+
+import           Data.Time.Calendar (Day)
+
+import           Common.Model       (IncomeId)
+
+data EditIncome = EditIncome
+  { _editIncome_id     :: IncomeId
+  , _editIncome_amount :: Int
+  , _editIncome_date   :: Day
+  } deriving (Show)
diff --git a/server/src/Model/EditPayment.hs b/server/src/Model/EditPayment.hs
new file mode 100644
index 0000000..ac4c906
--- /dev/null
+++ b/server/src/Model/EditPayment.hs
@@ -0,0 +1,17 @@
+module Model.EditPayment
+  ( EditPayment(..)
+  ) where
+
+import           Data.Text          (Text)
+import           Data.Time.Calendar (Day)
+
+import           Common.Model       (CategoryId, Frequency, PaymentId)
+
+data EditPayment = EditPayment
+  { _editPayment_id        :: PaymentId
+  , _editPayment_name      :: Text
+  , _editPayment_cost      :: Int
+  , _editPayment_date      :: Day
+  , _editPayment_category  :: CategoryId
+  , _editPayment_frequency :: Frequency
+  } deriving (Show)
diff --git a/server/src/Model/HashedPassword.hs b/server/src/Model/HashedPassword.hs
new file mode 100644
index 0000000..c71e372
--- /dev/null
+++ b/server/src/Model/HashedPassword.hs
@@ -0,0 +1,27 @@
+module Model.HashedPassword
+  ( hash
+  , check
+  , HashedPassword(..)
+  ) where
+
+import qualified Crypto.BCrypt         as BCrypt
+import           Data.Text             (Text)
+import qualified Data.Text.Encoding    as TE
+
+import           Common.Model.Password (Password (..))
+
+newtype HashedPassword = HashedPassword Text deriving (Show)
+
+hash :: Password -> IO (Maybe HashedPassword)
+hash (Password p) = do
+  hashed <- BCrypt.hashPasswordUsingPolicy BCrypt.slowerBcryptHashingPolicy (TE.encodeUtf8 p)
+  case hashed of
+    Nothing ->
+      return Nothing
+
+    Just h ->
+      return . Just . HashedPassword . TE.decodeUtf8 $ h
+
+check :: Password -> HashedPassword -> Bool
+check (Password p) (HashedPassword h) =
+  BCrypt.validatePassword (TE.encodeUtf8 h) (TE.encodeUtf8 p)
diff --git a/server/src/Model/IncomeResource.hs b/server/src/Model/IncomeResource.hs
new file mode 100644
index 0000000..6ab5f18
--- /dev/null
+++ b/server/src/Model/IncomeResource.hs
@@ -0,0 +1,15 @@
+module Model.IncomeResource
+  ( IncomeResource(..)
+  ) where
+
+import           Common.Model (Income (..))
+
+import           Resource     (Resource, resourceCreatedAt, resourceDeletedAt,
+                               resourceEditedAt)
+
+newtype IncomeResource = IncomeResource Income
+
+instance Resource IncomeResource where
+  resourceCreatedAt (IncomeResource i) = _income_createdAt i
+  resourceEditedAt (IncomeResource i) = _income_editedAt i
+  resourceDeletedAt (IncomeResource i) = _income_deletedAt i
diff --git a/server/src/Model/Mail.hs b/server/src/Model/Mail.hs
new file mode 100644
index 0000000..780efcc
--- /dev/null
+++ b/server/src/Model/Mail.hs
@@ -0,0 +1,12 @@
+module Model.Mail
+  ( Mail(..)
+  ) where
+
+import           Data.Text (Text)
+
+data Mail = Mail
+  { from    :: Text
+  , to      :: [Text]
+  , subject :: Text
+  , body    :: Text
+  } deriving (Eq, Show)
diff --git a/server/src/Model/PaymentResource.hs b/server/src/Model/PaymentResource.hs
new file mode 100644
index 0000000..1ea978c
--- /dev/null
+++ b/server/src/Model/PaymentResource.hs
@@ -0,0 +1,15 @@
+module Model.PaymentResource
+  ( PaymentResource(..)
+  ) where
+
+import           Common.Model (Payment (..))
+
+import           Resource     (Resource, resourceCreatedAt, resourceDeletedAt,
+                               resourceEditedAt)
+
+newtype PaymentResource = PaymentResource Payment
+
+instance Resource PaymentResource where
+  resourceCreatedAt (PaymentResource p) = _payment_createdAt p
+  resourceEditedAt (PaymentResource p) = _payment_editedAt p
+  resourceDeletedAt (PaymentResource p) = _payment_deletedAt p
diff --git a/server/src/Model/Query.hs b/server/src/Model/Query.hs
new file mode 100644
index 0000000..22ae95b
--- /dev/null
+++ b/server/src/Model/Query.hs
@@ -0,0 +1,32 @@
+module Model.Query
+  ( Query(..)
+  , run
+  ) where
+
+import           Data.Functor           (Functor)
+import           Database.SQLite.Simple (Connection)
+import qualified Database.SQLite.Simple as SQLite
+
+data Query a = Query (Connection -> IO a)
+
+instance Functor Query where
+  fmap f (Query call) = Query (fmap f . call)
+
+instance Applicative Query where
+  pure x = Query (const $ return x)
+  (Query callF) <*> (Query callX) = Query (\conn -> do
+    x <- callX conn
+    f <- callF conn
+    return (f x))
+
+instance Monad Query where
+  (Query callX) >>= f = Query (\conn -> do
+    x <- callX conn
+    case f x of Query callY -> callY conn)
+
+run :: Query a -> IO a
+run (Query call) = do
+  conn <- SQLite.open "database"
+  result <- call conn
+  _ <- SQLite.close conn
+  return result
diff --git a/server/src/Model/SignIn.hs b/server/src/Model/SignIn.hs
new file mode 100644
index 0000000..a217bae
--- /dev/null
+++ b/server/src/Model/SignIn.hs
@@ -0,0 +1,10 @@
+module Model.SignIn
+  ( SignIn(..)
+  ) where
+
+import           Common.Model (Email, Password)
+
+data SignIn = SignIn
+  { _signIn_email    :: Email
+  , _signIn_password :: Password
+  } deriving Show
diff --git a/server/src/Model/UUID.hs b/server/src/Model/UUID.hs
new file mode 100644
index 0000000..0959a8e
--- /dev/null
+++ b/server/src/Model/UUID.hs
@@ -0,0 +1,10 @@
+module Model.UUID
+  ( generateUUID
+  ) where
+
+import           Data.Text    (Text, pack)
+import           Data.UUID    (toString)
+import           Data.UUID.V4 (nextRandom)
+
+generateUUID :: IO Text
+generateUUID = pack . toString <$> nextRandom