From a7db22556b91bc7c499e010b4c051f4442ad8ce2 Mon Sep 17 00:00:00 2001
From: Joris
Date: Tue, 29 Dec 2015 22:38:42 +0100
Subject: Using persona to validate emails

---
 src/client/Model/Payer.elm | 132 ---------------------------------------------
 1 file changed, 132 deletions(-)
 delete mode 100644 src/client/Model/Payer.elm

(limited to 'src/client/Model/Payer.elm')

diff --git a/src/client/Model/Payer.elm b/src/client/Model/Payer.elm
deleted file mode 100644
index 9fd1bb5..0000000
--- a/src/client/Model/Payer.elm
+++ /dev/null
@@ -1,132 +0,0 @@
-module Model.Payer
-  ( Payers
-  , Payer
-  , ExceedingPayer
-  , payersDecoder
-  , updatePayers
-  , getOrderedExceedingPayers
-  ) where
-
-import Json.Decode as Json exposing (..)
-import Dict exposing (..)
-import List
-import Maybe
-import Time exposing (Time)
-
-import Model.User exposing (UserId, userIdDecoder)
-import Model.Income exposing (..)
-
-import Utils.Dict exposing (mapValues)
-import Utils.Maybe exposing (isJust)
-
-type alias Payers = Dict UserId Payer
-
-type alias Payer =
-  { preIncomePaymentSum : Int
-  , postIncomePaymentSum : Int
-  , incomes : List Income
-  }
-
-payersDecoder : Decoder Payers
-payersDecoder = Json.map Dict.fromList (list payerDecoder)
-
-payerDecoder : Decoder (UserId, Payer)
-payerDecoder =
-  object2 (,)
-    ("userId" := userIdDecoder)
-    (object3 Payer
-      ("preIncomePaymentSum" := int)
-      ("postIncomePaymentSum" := int)
-      ("incomes" := list incomeDecoder))
-
-updatePayers : Payers -> UserId -> Time -> Int -> Payers
-updatePayers payers userId creation amountDiff =
-  payers
-    |> Dict.update userId (\mbPayer ->
-       case mbPayer of
-         Just payer ->
-           let postIncome =
-                payersIncomeDefinedForAll payers
-                  |> Maybe.map (\date -> creation > date)
-                  |> Maybe.withDefault False
-           in  if postIncome
-                 then
-                   Just { payer | postIncomePaymentSum <- payer.postIncomePaymentSum + amountDiff }
-                 else
-                   Just { payer | preIncomePaymentSum <- payer.preIncomePaymentSum + amountDiff }
-         Nothing ->
-           Nothing
-    )
-
-type alias ExceedingPayer =
-  { userId : UserId
-  , amount : Int
-  }
-
-getOrderedExceedingPayers : Time -> Payers -> List ExceedingPayer
-getOrderedExceedingPayers currentTime payers =
-  let exceedingPayersOnPreIncome =
-        payers
-          |> mapValues .preIncomePaymentSum
-          |> Dict.toList
-          |> exceedingPayersFromAmounts
-  in  case payersIncomeDefinedForAll payers of
-        Just since ->
-          let postPaymentPayers =
-                payers
-                  |> mapValues (getPostPaymentPayer currentTime since)
-              mbMaxRatio =
-                postPaymentPayers
-                  |> Dict.toList
-                  |> List.map (.ratio << snd)
-                  |> List.maximum
-          in  case mbMaxRatio of
-                Just maxRatio ->
-                  postPaymentPayers
-                    |> mapValues (getFinalDiff maxRatio)
-                    |> Dict.toList
-                    |> exceedingPayersFromAmounts
-                Nothing ->
-                  exceedingPayersOnPreIncome
-        Nothing ->
-          exceedingPayersOnPreIncome
-
-payersIncomeDefinedForAll : Payers -> Maybe Time
-payersIncomeDefinedForAll payers =
-  incomeDefinedForAll (List.map (.incomes << snd) << Dict.toList <| payers)
-
-exceedingPayersFromAmounts : List (UserId, Int) -> List ExceedingPayer
-exceedingPayersFromAmounts userAmounts =
-  let mbMinAmount = List.minimum << List.map snd <| userAmounts
-  in  case mbMinAmount of
-        Nothing ->
-          []
-        Just minAmount ->
-          userAmounts
-            |> List.map (\userAmount ->
-                 { userId = fst userAmount
-                 , amount = snd userAmount - minAmount
-                 }
-               )
-            |> List.filter (\payer -> payer.amount > 0)
-
-type alias PostPaymentPayer =
-  { preIncomePaymentSum : Int
-  , cumulativeIncome : Int
-  , ratio : Float
-  }
-
-getPostPaymentPayer : Time -> Time -> Payer -> PostPaymentPayer
-getPostPaymentPayer currentTime since payer =
-  let cumulativeIncome = cumulativeIncomesSince currentTime since payer.incomes
-  in  { preIncomePaymentSum = payer.preIncomePaymentSum
-      , cumulativeIncome = cumulativeIncome
-      , ratio = toFloat payer.postIncomePaymentSum / toFloat cumulativeIncome
-      }
-
-getFinalDiff : Float -> PostPaymentPayer -> Int
-getFinalDiff maxRatio payer =
-  let postIncomeDiff =
-        -1 * (maxRatio - payer.ratio) * toFloat payer.cumulativeIncome
-          |> truncate
-  in  postIncomeDiff + payer.preIncomePaymentSum
-- 
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