prompt util func to reduce code reuse

lib/prompt.go

@@ -0,0 +1,33 @@
+package lib
+
+import (
+	"strings"
+
+	"github.com/Cynosphere/comcord/state"
+	"github.com/bwmarrin/discordgo"
+	"github.com/ergochat/readline"
+)
+
+func MakePrompt(session *discordgo.Session, prompt string, uniqueLine bool, callback func(session *discordgo.Session, input string, interrupt bool)) {
+  state.SetInPrompt(true)
+  state.SetPromptText(prompt)
+
+  rl, _ := readline.NewFromConfig(&readline.Config{
+    Prompt: prompt,
+    UniqueEditLine: uniqueLine,
+  })
+  defer rl.Close()
+
+  input, err := rl.Readline()
+  input = strings.TrimSpace(input)
+  rl.Close()
+
+  interrupt := err == readline.ErrInterrupt
+
+  callback(session, input, interrupt)
+
+  state.SetInPrompt(false)
+  state.SetPromptText("")
+
+  ProcessQueue(session)
+}