Add simple way to reset talent tree

src/store/calculator/actions.ts

@@ -5,6 +5,7 @@ import {
   REMOVE_POINT,
   SET_POINTS,
   Points,
+  RESET_SPEC,
 } from './types'
 
 export const setClass = (classId: number, points?: Points): CalculatorActionTypes => ({
@@ -26,4 +27,9 @@ export const removePoint = (talentId: number): CalculatorActionTypes => ({
 export const setPoints = (points: Points): CalculatorActionTypes => ({
   type: SET_POINTS,
   points
+})
+
+export const resetSpec = (specId: number): CalculatorActionTypes => ({
+  type: RESET_SPEC,
+  specId
 })

src/store/calculator/reducers.ts

@@ -5,10 +5,11 @@ import {
   SET_CLASS, 
   ADD_POINT, 
   REMOVE_POINT, 
-  SET_POINTS
+  SET_POINTS,
+  RESET_SPEC
 } from './types'
 import { canLearnTalent, canUnlearnTalent, encodeKnownTalents } from '../../lib/tree'
-import { talentsById } from '../../data/talents'
+import { talentsById, talentsBySpec } from '../../data/talents'
 
 const initialState: CalculatorState = {
   classId: null,
@@ -70,6 +71,15 @@ export default function(state = initialState, action: CalculatorActionTypes): Ca
       }
     }
 
+    case RESET_SPEC: {
+      const resetIds = Object.values(talentsBySpec[action.specId]).map((t) => t.id)
+      const nextPoints = points.filter((_, id) => resetIds.indexOf(id) === -1)
+      return {
+        ...state,
+        points: nextPoints
+      }
+    }
+
     default: 
       return state
   }

src/store/calculator/types.ts

@@ -12,6 +12,7 @@ export const SET_CLASS = 'SET_CLASS'
 export const ADD_POINT = 'ADD_POINT'
 export const REMOVE_POINT = 'REMOVE_POINT'
 export const SET_POINTS = 'SET_POINTS'
+export const RESET_SPEC = 'RESET_SPEC'
 
 interface SetClassAction {
   type: typeof SET_CLASS
@@ -34,5 +35,10 @@ interface SetPointsAction {
   points: Points
 }
 
+interface ResetSpecAction {
+  type: typeof RESET_SPEC
+  specId: number
+}
+
 export type CalculatorActionTypes = SetClassAction | AddPointAction | RemovePointAction | 
-  SetPointsAction
+  SetPointsAction | ResetSpecAction