dispatch select degree event

Author: ricokahler

src/client/routes/welcome/index.ts

@@ -18,7 +18,25 @@ const Container = Model.store.connect({
       degrees: getMasteredDegreesConsideringAdmin(state.masteredDegrees, isAdmin),
     };
   },
-  mapDispatchToProps: () => ({}),
+  mapDispatchToProps: dispatch => ({
+    onSelectedDegree: (degreeId: string) => {
+      dispatch(state => {
+        const user = state.user;
+        if (!user) return state;
+        return {
+          ...state,
+          user: {
+            ...user,
+            chosenDegree: true,
+            degree: {
+              ...user.degree,
+              masteredDegreeId: degreeId,
+            },
+          },
+        };
+      });
+    },
+  }),
 })(Welcome);
 
 export { Container as Welcome };

src/client/routes/welcome/welcome.tsx

@@ -116,6 +116,7 @@ const Times = styled(Fa)`
 
 interface WelcomeProps {
   degrees: Model.MasteredDegree.Model[];
+  onSelectedDegree: (degreeId: string) => void;
 }
 
 interface WelcomeState {
@@ -182,6 +183,12 @@ export class Welcome extends React.PureComponent<WelcomeProps, WelcomeState> {
     this.setState({ selectedDegreeId: undefined });
   };
 
+  handleLetsBegin = () => {
+    const { selectedDegreeId } = this.state;
+    if (!selectedDegreeId) return;
+    this.props.onSelectedDegree(selectedDegreeId);
+  };
+
   renderSuggestion = (degree: Model.MasteredDegree.Model, selected: boolean) => {
     return <Suggestion selected={selected}>{degree.name}</Suggestion>;
   };
@@ -234,9 +241,11 @@ export class Welcome extends React.PureComponent<WelcomeProps, WelcomeState> {
                 />
               )}
 
-              <PrimaryButton>
-                Let's begin <Arrow icon="chevronRight" />
-              </PrimaryButton>
+              {!!this.selectedDegreeName && (
+                <PrimaryButton onClick={this.handleLetsBegin}>
+                  Let's begin <Arrow icon="chevronRight" />
+                </PrimaryButton>
+              )}
               <NotPart onClick={this.notPartInfoModal.open}>
                 Not part of the College of Engineering and Computer Science?
               </NotPart>