Codecademy export

reduxRoad.js

const initialWagonState = {
  supplies: 100,
  distance: 0,
  days: 0,
  cash: 200
}

const reducer = (state = initialWagonState, action) => {
  switch(action.type) {
    case 'gather':
    return {
      ...state,
      supplies: state.supplies + 15,
      days: state.days + 1
    }
    case 'travel': {
      if(state.supplies - (20 * action.payload) <= 0) {
        return state;
      } else {
        return {
          ...state,
          supplies: state.supplies - (20 * action.payload),
          distance: state.distance + (10 * action.payload),
          days: state.days + action.payload  
        }
      }
    }
    case 'tippedWagon':
    return {
      ...state,
      supplies: state.supplies - 30,
      days: state.days + 1
    }
    case 'sell':
    return {
      ...state,
      supplies: state.supplies - 20,
      cash: state.cash + 5
    }
    case 'buy':
    return {
      ...state,
      supplies: state.supplies + 25,
      cash: state.cash - 15
    }
    case 'theft':
    return {
      ...state,
      cash: state.cash / 2
    }
    default: {
      return state;
    }
  }
}

let wagon = reducer(undefined, {});
console.log(wagon);

wagon = reducer(wagon, {type: 'travel', payload: 1});
console.log(wagon);

wagon = reducer(wagon, {type: 'gather'});
console.log(wagon);

wagon = reducer(wagon, {type: 'tippedWagon'});
console.log(wagon);

wagon = reducer(wagon, {type: 'travel', payload: 3});
console.log(wagon);

wagon = reducer(wagon, {type: 'sell', payload: 3});
console.log(wagon);