From 27e11b20b06f2f2dbfb56c0998a63169b4b8abc4 Mon Sep 17 00:00:00 2001
From: Joris
Date: Wed, 8 Nov 2017 23:47:26 +0100
Subject: Use a better project structure

---
 server/src/Model/Income.hs | 97 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 server/src/Model/Income.hs

(limited to 'server/src/Model/Income.hs')

diff --git a/server/src/Model/Income.hs b/server/src/Model/Income.hs
new file mode 100644
index 0000000..bbe7657
--- /dev/null
+++ b/server/src/Model/Income.hs
@@ -0,0 +1,97 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+module Model.Income
+  ( list
+  , create
+  , editOwn
+  , deleteOwn
+  , modifiedDuring
+  ) where
+
+import Data.Maybe (listToMaybe)
+import Data.Time.Calendar (Day)
+import Data.Time.Clock (UTCTime, getCurrentTime)
+import Database.SQLite.Simple (Only(Only), FromRow(fromRow))
+import Prelude hiding (id)
+import qualified Database.SQLite.Simple as SQLite
+
+import Common.Model (Income(..), IncomeId, User(..), UserId)
+
+import Model.Query (Query(Query))
+import Resource (Resource, resourceCreatedAt, resourceEditedAt, resourceDeletedAt)
+
+instance Resource Income where
+  resourceCreatedAt = _income_createdAt
+  resourceEditedAt = _income_editedAt
+  resourceDeletedAt = _income_deletedAt
+
+instance FromRow Income where
+  fromRow = Income <$>
+    SQLite.field <*>
+    SQLite.field <*>
+    SQLite.field <*>
+    SQLite.field <*>
+    SQLite.field <*>
+    SQLite.field <*>
+    SQLite.field
+
+list :: Query [Income]
+list = Query (\conn -> SQLite.query_ conn "SELECT * FROM income WHERE deleted_at IS NULL")
+
+create :: UserId -> Day -> Int -> Query IncomeId
+create incomeUserId incomeDate incomeAmount =
+  Query (\conn -> do
+    now <- getCurrentTime
+    SQLite.execute
+      conn
+      "INSERT INTO income (user_id, date, amount, created_at) VALUES (?, ?, ?, ?)"
+      (incomeUserId, incomeDate, incomeAmount, now)
+    SQLite.lastInsertRowId conn
+  )
+
+editOwn :: UserId -> IncomeId -> Day -> Int -> Query Bool
+editOwn incomeUserId incomeId incomeDate incomeAmount =
+  Query (\conn -> do
+    mbIncome <- listToMaybe <$> SQLite.query conn "SELECT * FROM income WHERE id = ?" (Only incomeId)
+    case mbIncome of
+      Just income ->
+        if _income_userId income == incomeUserId
+          then do
+            now <- getCurrentTime
+            SQLite.execute
+              conn
+              "UPDATE income SET edited_at = ?, date = ?, amount = ? WHERE id = ?"
+              (now, incomeDate, incomeAmount, incomeId)
+            return True
+          else
+            return False
+      Nothing ->
+        return False
+  )
+
+deleteOwn :: User -> IncomeId -> Query Bool
+deleteOwn user incomeId =
+  Query (\conn -> do
+    mbIncome <- listToMaybe <$> SQLite.query conn "SELECT * FROM income WHERE id = ?" (Only incomeId)
+    case mbIncome of
+      Just income ->
+        if _income_userId income == _user_id user
+          then do
+            now <- getCurrentTime
+            SQLite.execute conn "UPDATE income SET deleted_at = ? WHERE id = ?" (now, incomeId)
+            return True
+          else
+            return False
+      Nothing ->
+        return False
+  )
+
+modifiedDuring :: UTCTime -> UTCTime -> Query [Income]
+modifiedDuring start end =
+  Query (\conn ->
+    SQLite.query
+      conn
+      "SELECT * FROM income WHERE (created_at >= ? AND created_at <= ?) OR (edited_at >= ? AND edited_at <= ?) OR (deleted_at >= ? AND deleted_at <= ?)"
+      (start, end, start, end, start, end)
+  )
-- 
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