basic email validation

the code for the panes is getting messy. since we have one window we
constantly reuse, and especially now that we have weird state-dependent
validation. probably good to rework?

cmd/review/main.go

@@ -136,7 +136,7 @@ func _main() error {
 	appView.SetDynamicColors(true)
 
 	legend := tview.NewTextView()
-	legend.SetText("s: skip r: random A: approve R: reject N: notate Q: quit")
+	legend.SetText("s/S: next/prev r: random A: approve R: reject N: notate Q: quit")
 	legend.SetTextColor(tcell.ColorPurple)
 	legend.SetTextAlign(tview.AlignCenter)
 	legend.SetBackgroundColor(tcell.ColorBlack)
@@ -238,14 +238,11 @@ func _main() error {
 	reviewForm.AddFormItem(cleanEmailInput)
 	reviewForm.AddButton("submit", func() {
 		currSignup := signups[signupIx]
-		cleanEmail := reviewForm.GetFormItemByLabel("clean email").(*tview.InputField).GetText()
-		defer func() {
-			cleanEmailInput.SetText("")
-		}()
+		cleanEmail := cleanEmailInput.GetText()
 		currSignup.CleanEmail = cleanEmail
 
 		decision := models.SignupRejected
-		_, d := reviewForm.GetFormItemByLabel("decision").(*tview.DropDown).GetCurrentOption()
+		_, d := decisionFI.GetCurrentOption()
 		if d == "accepted" {
 			decision = models.SignupAccepted
 		}
@@ -332,12 +329,16 @@ func _main() error {
 				updateCount()
 				render()
 			}
+		// TODO: there's a bunch of messy state management.
+		// should we generate this pane functionally?
 		case 'A':
 			if len(signups) == 0 {
 				return nil
 			}
 			emailVal := signups[signupIx].Email
 			providedEmailView.SetText(emailVal)
+			cleanEmailInput.SetLabel("clean email   ")
+			cleanEmailInput.SetText("")
 			/*
 				TODO the placeholder doesn't appear to become the default text which is
 				what I wanted it to do. Just taking this out so the blank box beckons
@@ -346,6 +347,13 @@ func _main() error {
 				cleanEmailInput.SetPlaceholder(
 					strings.TrimSpace(strings.ReplaceAll(emailVal, "\n", " ")))
 			*/
+			cleanEmailInput.SetChangedFunc(func(text string) {
+				if strings.Contains(emailVal, text) {
+					cleanEmailInput.SetLabel("clean email   ")
+				} else {
+					cleanEmailInput.SetLabel("[red]clean email :(")
+				}
+			})
 			decisionFI.SetCurrentOption(0)
 			pages.SwitchToPage("review")
 			app.SetFocus(cleanEmailInput)
@@ -356,6 +364,8 @@ func _main() error {
 			}
 			emailVal := signups[signupIx].Email
 			providedEmailView.SetText(emailVal)
+			cleanEmailInput.SetLabel("clean email   ")
+			cleanEmailInput.SetText("")
 			/*
 				TODO the placeholder doesn't appear to become the default text which is
 				what I wanted it to do. Just taking this out so the blank box beckons
@@ -364,6 +374,13 @@ func _main() error {
 				cleanEmailInput.SetPlaceholder(
 					strings.TrimSpace(strings.ReplaceAll(emailVal, "\n", " ")))
 			*/
+			cleanEmailInput.SetChangedFunc(func(text string) {
+				if strings.Contains(emailVal, text) {
+					cleanEmailInput.SetLabel("clean email   ")
+				} else {
+					cleanEmailInput.SetLabel("[red]clean email :(")
+				}
+			})
 			decisionFI.SetCurrentOption(1)
 			pages.SwitchToPage("review")
 			app.SetFocus(cleanEmailInput)