4 files changed, 98 insertions, 0 deletions
diff --git a/src/Model/Id.elm b/src/Model/Id.elm
new file mode 100644
index 0000000..c416804
--- /dev/null
+++ b/src/Model/Id.elm
@@ -0,0 +1,5 @@
+module Model.Id
+  ( Id
+  ) where
+
+type alias Id = Int
diff --git a/src/Model/IdGenerator.elm b/src/Model/IdGenerator.elm
new file mode 100644
index 0000000..8bce44f
--- /dev/null
+++ b/src/Model/IdGenerator.elm
@@ -0,0 +1,21 @@
+module Model.IdGenerator
+  ( IdGenerator
+  , initialIdGenerator
+  , getId
+  ) where
+
+import Model.Id (..)
+
+type alias IdGenerator =
+  { counter : Id
+  }
+
+initialIdGenerator =
+  { counter = 0
+  }
+
+getId : IdGenerator -> (Id, IdGenerator)
+getId idGenerator =
+  ( idGenerator.counter
+  , { idGenerator | counter <- idGenerator.counter + 1 }
+  )
diff --git a/src/Model/Model.elm b/src/Model/Model.elm
new file mode 100644
index 0000000..fa97d7b
--- /dev/null
+++ b/src/Model/Model.elm
@@ -0,0 +1,32 @@
+module Model.Model
+  ( Model
+  , initialModel
+  , substractTimersTime
+  ) where
+
+import Dict (Dict)
+import Dict
+import Time (Time)
+
+import Model.Timer (..)
+import Model.Id (..)
+import Model.IdGenerator (..)
+
+type alias Model =
+  { currentTime : Time
+  , newTimerName : String
+  , timers : Dict Id Timer
+  , timerIdGenerator : IdGenerator
+  }
+
+initialModel : Time -> Model
+initialModel initialTime =
+  { currentTime = initialTime
+  , newTimerName = ""
+  , timers = Dict.empty
+  , timerIdGenerator = initialIdGenerator
+  }
+
+substractTimersTime : Time -> Dict Id Timer -> Dict Id Timer
+substractTimersTime t timers =
+  Dict.map (\id timer -> substractTimerTime t timer) timers
diff --git a/src/Model/Timer.elm b/src/Model/Timer.elm
new file mode 100644
index 0000000..ddbe97b
--- /dev/null
+++ b/src/Model/Timer.elm
@@ -0,0 +1,40 @@
+module Model.Timer
+  ( Timer
+  , initialTimer
+  , substractTimerTime
+  ) where
+
+import List
+import Time (Time)
+
+type alias Timer =
+  { creationTime : Time
+  , name : String
+  , time : Time
+  , isRunning : Bool
+  }
+
+initialTimer : Time -> String -> Timer
+initialTimer creationTime name =
+  { creationTime = creationTime
+  , name = name
+  , time = 5 * 60 * 1000
+  , isRunning = True
+  }
+
+substractTimerTime : Time -> Timer -> Timer
+substractTimerTime time timer =
+  if timer.isRunning
+    then
+      if timer.time - time <= 0.0
+        then
+          { timer
+          | time <- 0.0
+          , isRunning <- False
+          }
+        else
+          { timer
+          | time <- timer.time - time
+          }
+    else
+      timer