Abstracted if-else logic for changing page and entering number/text input value in chats page

1 files changed, 17 insertions, 40 deletions

diff --git a/go-src/windows.go b/go-src/windows.go
index c8e7234..31c2fb0 100644
--- a/go-src/windows.go
+++ b/go-src/windows.go
@@ -111,26 +111,14 @@ func chatsWindow(values ...string) {
 	)
 
 	if nextWindow == nil {
-		// If user input is number, navigate to chat of given number, else show error
-		if chatI, err := strconv.Atoi(input); chatI >= 0 && chatI <= len(allChats) && err == nil {
-			defer chatWindow(strings.Split(allChats[utils.MaxInt(len(allChats)-pageSize*len(values[0]), 0)+chatI-1], " : ")[0])
-		} else if input == ">" {
-			// If possible, increment to the next page (adds a dot to the end of the string)
-			if len(values[0]) < totalPages(len(allChats)) {
-				values[0] += "."
-			}
-			defer chatsWindow(values...)
-		} else if input == "<" {
-			// If possible, decrement to the previous page (removes a dot from the string)
-			if len(values[0]) > 1 {
-				utils.StrShortenRight(&values[0], 1)
-			}
-			defer chatsWindow(values...)
-		} else if chatNameExists(input) {
-			defer chatWindow(input)
-		} else {
-			defer showError(invalidCommand, chatsWindow)
-		}
+		defer handleComplexInputActions(input,
+			allChats,
+			" : ",
+			&values[0],
+			chatsWindow,
+			chatWindow,
+			chatNameExists,
+		)
 	} else {
 		defer nextWindow()
 	}
@@ -253,26 +241,15 @@ func directMessagesWindow(values ...string) {
 	)
 
 	if nextWindow == nil {
-		// If user input is number, navigate to chat of given number, else show error
-		if chatI, err := strconv.Atoi(input); chatI >= 0 && chatI <= len(allDirectMessageChats) && err == nil {
-			defer directMessageWindow(strings.Trim(strings.Split(allDirectMessageChats[utils.MaxInt(len(allDirectMessageChats)-pageSize*len(values[0]), 0)+chatI-1], " (")[1], ")"))
-		} else if input == ">" {
-			// If possible, increment to the next page (adds a dot to the end of the string)
-			if len(values[0]) < totalPages(len(allDirectMessageChats)) {
-				values[0] += "."
-			}
-			defer directMessagesWindow(values...)
-		} else if input == "<" {
-			// If possible, decrement to the previous page (removes a dot from the string)
-			if len(values[0]) > 1 {
-				utils.StrShortenRight(&values[0], 1)
-			}
-			defer directMessagesWindow(values...)
-		} else if usernameExists(input) {
-			defer directMessageWindow(input)
-		} else {
-			defer showError(invalidCommand, chatsWindow)
-		}
+		values[0] = values[0][:len(values[0])-1]
+		defer handleComplexInputActions(input,
+			allDirectMessageChats,
+			" (",
+			&values[0],
+			directMessagesWindow,
+			directMessageWindow,
+			usernameExists,
+		)
 	} else {
 		defer nextWindow()
 	}