module Model.Model
  ( Model
  , initialModel
  , substractTimersTime
  , numberOfTimers
  ) where

import Dict (Dict)
import Dict
import Time (Time)
import List

import Model.Timer (..)
import Model.TimerEdition (..)
import Model.Id (..)
import Model.IdGenerator (..)

type alias Model =
  { currentTime : Time
  , timers : Dict Id Timer
  , timerIdGenerator : IdGenerator
  , timerEdition : Maybe TimerEdition
  }

initialModel : Time -> Model
initialModel initialTime =
  let (id, idGenerator) = getId initialIdGenerator
      timerName = "Timer " ++ (toString id)
  in  { currentTime = initialTime
      , timers = Dict.insert id (initialTimer initialTime timerName) Dict.empty
      , timerIdGenerator = idGenerator
      , timerEdition = Nothing
      }

substractTimersTime : Time -> Dict Id Timer -> Dict Id Timer
substractTimersTime t timers =
  Dict.map (\id timer -> substractTimerTime t timer) timers

numberOfTimers : Model -> Int
numberOfTimers = List.length << Dict.toList << .timers