Commands & Handler in place

set the basic handler framework for commands & chat

internal/chat/handler.go

@@ -0,0 +1,70 @@
+package chat
+
+import (
+	"fmt"
+	"strings"
+
+	twitch "github.com/gempir/go-twitch-irc/v4"
+	"streambot/internal/commands"
+)
+
+const (
+	MatchPrefix = "prefix"
+	MatchMention = "mention"
+	MatchContains = "contains"
+)
+
+func messageMatchesCommand(message, botUserName string, cmd commands.CustomCommand) bool {
+	msgLower := strings.ToLower(message)
+	triggerLower := strings.ToLower(cmd.Trigger)
+	botMention := "@" + strings.ToLower(botUserName)
+
+	switch cmd.Match {
+		case MatchPrefix:
+			return strings.HasPrefix(msgLower, triggerLower)
+		case MatchMention:
+			return strings.Contains(msgLower, botMention) && strings.Contains(msgLower, triggerLower)
+		case MatchContains:
+			return strings.Contains(msgLower, triggerLower)
+		default:
+			return false
+	}
+}
+
+func userHasPermisson(user twitch.User, required commands.PermissionLevel) bool {
+	isStreamer := use.Badges["broadcaster"] == 1
+	isModerator := user.Badges["moderator"] == 1
+	isVIP := user.Badges["vip"] == 1
+
+	switch required {
+		case commands.PermissionEveryone:
+			return true
+		case commands.PermissionVIP:
+			return isStreamer || isModerator || is VIP
+		case commands.PermissionModerator:
+			return isStreamer || isModerator
+		case commands.PermissionStreamer:
+			return isStreamer
+		default:
+			return false
+	}
+}
+
+func HandleMessage(client *twitch.Client, apiClient interface{}, message twitch.PrivateMessage, botUserName string) {
+	user := message.User
+	msg := message.Message
+	channel := message.Channel
+
+	// uptime title game handlers etc. . .
+
+	for _, cmd := range commands.GetAllCommands() {
+		if messageMatchesCommand(msg, botName, cmd) {
+			if userHasPermission(user, cmd.Permission) {
+				client.Say(channel, cmd.Reply)
+			} else {
+				client.Say(channel, fmt.Sprintf("@%s You don't have permission to use this command.", user.DisplayName))
+			}
+			break
+		}
+	}
+}