add a wizard

components/contact.js

@@ -1,18 +1,14 @@
 import { useContext } from 'react'
-import { AppContext, ACTIONS } from '../context/appStore'
+import { WizardContext, ACTIONS } from '../context/wizardStore'
 
 import Form from 'react-bootstrap/Form'
 import Col from 'react-bootstrap/Col'
 
 export default function Contact() {
-  const { state, dispatch } = useContext(AppContext)
+  const { state, dispatch } = useContext(WizardContext)
 
   const { multipleDays, startDate, endDate } = state
 
-  if (!startDate || (multipleDays && !endDate)) {
-    return null
-  }
-
   return (
     <>
       <Form.Group>

components/dateSelect.js

@@ -1,5 +1,5 @@
 import { useContext } from 'react'
-import { AppContext, ACTIONS } from '../context/appStore'
+import { WizardContext, ACTIONS } from '../context/wizardStore'
 
 import Form from 'react-bootstrap/Form'
 
@@ -8,7 +8,7 @@ import 'react-dates/initialize'
 import { DateRangePicker, SingleDatePicker } from 'react-dates'
 
 export default function DateSelect() {
-  const { state, dispatch } = useContext(AppContext)
+  const { state, dispatch } = useContext(WizardContext)
 
   const {
     multipleDays,
@@ -24,65 +24,88 @@ export default function DateSelect() {
     return bookedOn.some((rawDay) => momentDay.isSame(rawDay))
   }
 
-  if (multipleDays === null || multipleDays === undefined) {
-    return null
-  }
-
   return (
     <>
-      <Form.Group>
-        <Form.Label component="legend" style={{ display: 'block' }}>
-          Datum
-        </Form.Label>
-        {state.multipleDays === false && (
-          <SingleDatePicker
-            small={true}
-            date={startDate && moment(startDate)}
-            onDateChange={(date) =>
-              dispatch({
-                type: ACTIONS.SET_DATE,
-                payload: { startDate: date.toISOString() },
-              })
-            }
-            focused={typeof focusedInput === 'boolean' && focusedInput}
-            onFocusChange={({ focused }) =>
-              dispatch({
-                type: ACTIONS.SET_FOCUSED_INPUT,
-                payload: focused,
-              })
-            }
-            isDayBlocked={isDayBlocked}
-            id="your_unique_id"
-          />
-        )}
-        {state.multipleDays === true && (
-          <DateRangePicker
-            small={true}
-            startDate={startDate && moment(startDate)}
-            startDateId="bussle_start_date_id"
-            endDate={endDate && moment(endDate)}
-            endDateId="bussle_end_date_id"
-            onDatesChange={({ startDate, endDate }) => {
-              dispatch({
-                type: ACTIONS.SET_DATE,
-                payload: {
-                  startDate: startDate && startDate.toISOString(),
-                  endDate: endDate && endDate.toISOString(),
-                },
-              })
-            }}
-            focusedInput={focusedInput}
-            onFocusChange={(focusedInput) =>
-              dispatch({
-                type: ACTIONS.SET_FOCUSED_INPUT,
-                payload: focusedInput,
-              })
-            }
-            isDayBlocked={isDayBlocked}
-            minDate={moment()}
-          />
-        )}
+      <Form.Group controlId="dateSelect">
+        <Form.Label>Willst du einen odere mehrere Tage buchen?</Form.Label>
+        <Form.Check
+          type="radio"
+          id={'multipleDays-single'}
+          label="Einen Tag"
+          name="multipleDays"
+          value="single"
+          checked={state.multipleDays === false}
+          onChange={() =>
+            dispatch({ type: ACTIONS.SET_MULTIPLE_DAYS, payload: false })
+          }
+        />
+        <Form.Check
+          type="radio"
+          id={'multipleDays-multiple'}
+          label="Mehrere Tage"
+          name="multipleDays"
+          value="multiple"
+          checked={state.multipleDays === true}
+          onChange={() =>
+            dispatch({ type: ACTIONS.SET_MULTIPLE_DAYS, payload: true })
+          }
+        />
       </Form.Group>
+      {multipleDays !== null && (
+        <Form.Group>
+          <Form.Label component="legend" style={{ display: 'block' }}>
+            Datum
+          </Form.Label>
+          {state.multipleDays === false && (
+            <SingleDatePicker
+              small={true}
+              date={startDate && moment(startDate)}
+              onDateChange={(date) =>
+                dispatch({
+                  type: ACTIONS.SET_DATE,
+                  payload: { startDate: date.toISOString() },
+                })
+              }
+              focused={typeof focusedInput === 'boolean' && focusedInput}
+              onFocusChange={({ focused }) =>
+                dispatch({
+                  type: ACTIONS.SET_FOCUSED_INPUT,
+                  payload: focused,
+                })
+              }
+              isDayBlocked={isDayBlocked}
+              id="your_unique_id"
+            />
+          )}
+          {state.multipleDays === true && (
+            <DateRangePicker
+              small={true}
+              startDate={startDate && moment(startDate)}
+              startDateId="bussle_start_date_id"
+              endDate={endDate && moment(endDate)}
+              endDateId="bussle_end_date_id"
+              onDatesChange={({ startDate, endDate }) => {
+                dispatch({
+                  type: ACTIONS.SET_DATE,
+                  payload: {
+                    startDate: startDate && startDate.toISOString(),
+                    endDate: endDate && endDate.toISOString(),
+                  },
+                })
+              }}
+              focusedInput={focusedInput}
+              onFocusChange={(focusedInput) =>
+                dispatch({
+                  type: ACTIONS.SET_FOCUSED_INPUT,
+                  payload: focusedInput,
+                })
+              }
+              isDayBlocked={isDayBlocked}
+              minDate={moment()}
+            />
+          )}
+        </Form.Group>
+      )}
     </>
   )
 }

components/rangeSelect.js

@@ -1,50 +0,0 @@
-import { useContext } from 'react'
-import { AppContext, ACTIONS } from '../context/appStore'
-
-import Form from 'react-bootstrap/Form'
-
-export default function RangeSelect() {
-  const { state, dispatch } = useContext(AppContext)
-
-  function getValue() {
-    const { multipleDays } = state
-
-    if (multipleDays === null || multipleDays === undefined) {
-      return null
-    }
-
-    if (multipleDays === true) {
-      return 'multiple'
-    }
-
-    return 'single'
-  }
-
-  return (
-    <Form.Group controlId="dateSelect">
-      <Form.Label>Willst du einen odere mehrere Tage buchen?</Form.Label>
-      <Form.Check
-        type="radio"
-        id={'multipleDays-single'}
-        label="Einen Tag"
-        name="multipleDays"
-        value="single"
-        checked={state.multipleDays === false}
-        onChange={() =>
-          dispatch({ type: ACTIONS.SET_MULTIPLE_DAYS, payload: false })
-        }
-      />
-      <Form.Check
-        type="radio"
-        id={'multipleDays-multiple'}
-        label="Mehrere Tage"
-        name="multipleDays"
-        value="multiple"
-        checked={state.multipleDays === true}
-        onChange={() =>
-          dispatch({ type: ACTIONS.SET_MULTIPLE_DAYS, payload: true })
-        }
-      />
-    </Form.Group>
-  )
-}

components/wizard.js

@@ -0,0 +1,55 @@
+import { useContext } from 'react'
+
+import Button from 'react-bootstrap/Button'
+import Form from 'react-bootstrap/Form'
+
+import WizardStore, { WizardContext, ACTIONS } from '../context/wizardStore'
+
+import DateSelect from './dateSelect'
+import Contact from './contact'
+import Driver from './driver'
+
+const STEPS = [
+  { id: 'DATE_SELECT', component: DateSelect },
+  { id: 'CONTACT', component: Contact },
+]
+
+function WizardInternal() {
+  const { state, dispatch } = useContext(WizardContext)
+  const { currentStep } = state
+
+  const isFirstStep = currentStep === 0
+  const isLastStep = currentStep === STEPS.length - 1
+
+  return (
+    <Form>
+      {STEPS.map(({ id, component: Component }, index) => (
+        <>{currentStep === index && <Component />}</>
+      ))}
+      {!isFirstStep && (
+        <Button
+          variant="secondary"
+          onClick={() => dispatch({ type: ACTIONS.PREV_STEP })}
+        >
+          Zurück
+        </Button>
+      )}
+      {!isLastStep && (
+        <Button onClick={() => dispatch({ type: ACTIONS.NEXT_STEP })}>
+          Weiter
+        </Button>
+      )}
+      {isLastStep && (
+        <Button onClick={() => console.log('SEND OFF', state)}>Absenden</Button>
+      )}
+    </Form>
+  )
+}
+
+export default function Wizard() {
+  return (
+    <WizardStore>
+      <WizardInternal />
+    </WizardStore>
+  )
+}

context/wizardStore.js

@@ -1,8 +1,10 @@
 import React, { useReducer } from 'react'
 
-export const AppContext = React.createContext()
+export const WizardContext = React.createContext()
 
 export const ACTIONS = {
+  NEXT_STEP: 'nextStep',
+  PREV_STEP: 'prevStep',
   SET_MULTIPLE_DAYS: 'setMultipleDays',
   SET_DATE: 'setDate',
   SET_FOCUSED_INPUT: 'setFocusedInput',
@@ -12,6 +14,16 @@ export const ACTIONS = {
 
 function reducer(state, action) {
   switch (action.type) {
+    case ACTIONS.NEXT_STEP:
+      return {
+        ...state,
+        currentStep: state.currentStep + 1, // wizards steps unkown here
+      }
+    case ACTIONS.PREV_STEP:
+      return {
+        ...state,
+        currentStep: Math.max(0, state.currentStep - 1),
+      }
     case ACTIONS.SET_MULTIPLE_DAYS:
       return {
         ...state,
@@ -45,6 +57,7 @@ function debugReducer(state, action) {
 }
 
 const initialState = {
+  currentStep: 0,
   multipleDays: null,
   bookedOn: [
     '2020-07-10',
@@ -55,12 +68,12 @@ const initialState = {
   ],
 }
 
-export default function AppStore({ children }) {
+export default function WizardStore({ children }) {
   const [state, dispatch] = useReducer(debugReducer, initialState)
 
   return (
-    <AppContext.Provider value={{ state, dispatch }}>
+    <WizardContext.Provider value={{ state, dispatch }}>
       {children}
-    </AppContext.Provider>
+    </WizardContext.Provider>
   )
 }

pages/index.js

@@ -2,15 +2,7 @@ import { useContext } from 'react'
 
 import Head from 'next/head'
 
-import AppStore from '../context/appStore'
-
-import RangeSelect from '../components/rangeSelect'
-import DateSelect from '../components/dateSelect'
-import Contact from '../components/contact'
-import Driver from '../components/driver'
-
-import Form from 'react-bootstrap/Form'
-import Button from 'react-bootstrap/Button'
+import Wizard from '../components/wizard'
 
 export default function Home() {
   return (
@@ -25,15 +17,7 @@ export default function Home() {
 
         <p>Du willst das Pfadi Bussle buchen? Hier bist du richtig!</p>
 
-        <AppStore>
-          <Form>
-            <RangeSelect />
-            <DateSelect />
-            <Contact />
-
-            <Button variant="primary">Reservieren</Button>
-          </Form>
-        </AppStore>
+        <Wizard />
       </main>
 
       <footer>