module Common.Model.Stats
  ( Stats
  , MonthStats(..)
  ) where

import           Data.Aeson            (FromJSON, ToJSON)
import           Data.Map              (Map)
import           Data.Time.Calendar    (Day)
import           GHC.Generics          (Generic)

import           Common.Model.Category (CategoryId)
import           Common.Model.User     (UserId)

type Stats = [MonthStats]

data MonthStats = MonthStats
  { _monthStats_start              :: Day
  , _monthStats_paymentsByCategory :: Map CategoryId Int
  , _monthStats_incomeByUser       :: Map UserId Int
  } deriving (Eq, Show, Generic)

instance FromJSON MonthStats
instance ToJSON MonthStats