Add command framework for static and dynamic commands

lorebot/lorebot.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -37,18 +38,18 @@ func main() {
 	initLogger(config.Lorebot.Loglevel)
 
 	// initialize redis connection
-	//redisClient, err := initRedisConnection()
+	redisClient, err := initRedisConnection()
-	//if err != nil {
+	if err != nil {
-	//	glogger.Debug.Printf("redis conneciton cannot be made, trying again in %d seconds", config.Lorebot.BootstrapDelay)
+		glogger.Debug.Printf("redis conneciton cannot be made, trying again in %d seconds", config.Lorebot.BootstrapDelay)
-	//	time.Sleep(config.Lorebot.BootstrapDelay * time.Second)
+		time.Sleep(config.Lorebot.BootstrapDelay * time.Second)
-	//	redisClient, err = initRedisConnection()
+		redisClient, err = initRedisConnection()
-	//	if err != nil {
+		if err != nil {
-	//		glogger.Error.Println("redis connection cannot be made.")
+			glogger.Error.Println("redis connection cannot be made.")
-	//		os.Exit(1)
+			os.Exit(1)
-	//	}
+		}
-	//}
+	}
-	//glogger.Debug.Println("connection to redis succeeded.")
+	glogger.Debug.Println("connection to redis succeeded.")
-	//glogger.Info.Println("link to redis on", config.Redis.Host)
+	glogger.Info.Println("link to redis on", config.Redis.Host)
 
 	api := slack.New(config.Lorebot.APIToken)
 	//api.SetDebug(true)
@@ -67,14 +68,31 @@ Loop:
 			//	// Handle new user to client
 			case *slack.MessageEvent:
 				if ev.Type == "message" {
-					if ev.Text == "test" {
+					//if ev.Text == "test" {
-						rtm.SendMessage(rtm.NewOutgoingMessage("MY NAME IS ..JHEFFFFF", ev.Channel))
+					//	rtm.SendMessage(rtm.NewOutgoingMessage("MY NAME IS ..JHEFFFFF", ev.Channel))
+					//}
+					//if strings.Contains(ev.Text, ".lore") {
+					//	//rtm.SendMessage(rtm.NewOutgoingMessage("THA LORE", ev.Channel))
+					//	s := strings.SplitN(string(ev.Text), " ", 2)
+					//	//command, content := s[0], s[1]
+					//	lorehandler(redisClient, rtm, ev, s[1])
+					//}
+					//if strings.Contains(ev.Text, ".help") {
+					//	helpmsg(rtm, ev)
+					//}
+					//if strings.Contains(ev.Text, ".help2") {
+					//	helpmsg(rtm, ev)
+					//}
+					// see if the message begins with '.', it could be a command
+					comm := fmt.Sprintf("%c", ev.Text[0])
+					if comm == "." {
+						if strings.Count(ev.Text, " ") == 0 {
+							// no spaces, its a static command
+							staticCommandHandler(rtm, ev, redisClient)
+						} else {
+							// spaces, dynamic handler
+							dynamicCommandHandler(rtm, ev, redisClient)
 						}
-					if strings.Contains(ev.Text, ".lore") {
-						//rtm.SendMessage(rtm.NewOutgoingMessage("THA LORE", ev.Channel))
-						s := strings.SplitN(string(ev.Text), " ", 2)
-						//command, content := s[0], s[1]
-						lorehandler(rtm, ev, s[1])
 					}
 				}
 			case *slack.RTMError:
@@ -123,8 +141,107 @@ func initRedisConnection() (*redis.Client, error) {
 	return redisClient, redisErr
 }
 
-func lorehandler(rtm *slack.RTM, ev *slack.MessageEvent, rawMessage string) {
+func dynamicCommandHandler(rtm *slack.RTM, ev *slack.MessageEvent, redisClient *redis.Client) {
+	message := ev.Text
+	if strings.Count(message, " ") < 1 {
+		glogger.Debug.Println("not proper syntax")
+	}
+
+	// verify syntax
+	s := strings.SplitN(message, " ", 2)
+	command, content := s[0], s[1]
+	trimmedPrefix := strings.TrimPrefix(command, ".")
+
+	switch trimmedPrefix {
+	case "lore":
+		s := strings.SplitN(string(ev.Text), " ", 2)
+		lorehandler(redisClient, rtm, ev, s[1])
+	case "newlore":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+		println(content)
+	case "rmlore":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "rek":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "created":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "owner":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "removedby":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "removed":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	}
+}
+
+func staticCommandHandler(rtm *slack.RTM, ev *slack.MessageEvent, redisClient *redis.Client) {
+	s := strings.SplitN(ev.Text, " ", 2)
+	command := s[0]
+	trimmedPrefix := strings.TrimPrefix(command, ".")
+
+	switch trimmedPrefix {
+	case "help":
+		helpmsg(rtm, ev)
+	case "help2":
+		advancedhelpmsg(rtm, ev)
+	case "rng":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "version":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "lorelist":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "removedlore":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	case "lorestatus":
+		rtm.SendMessage(rtm.NewOutgoingMessage("command not yet supported", ev.Channel))
+	}
+}
+
+func helpmsg(rtm *slack.RTM, ev *slack.MessageEvent) {
+	help1 := "I am the lore archival bot, I support the following commands:\n" +
+		"```" +
+		".lore:         view lore\n" +
+		".newlore:      add new lore\n" +
+		".rmlore:       remove lore\n" +
+		".lorelist:     view lore database\n" +
+		"use '.help2' to see advanced lookup commands." +
+		"```"
+
+	rtm.SendMessage(rtm.NewOutgoingMessage(help1, ev.Channel))
+}
+
+func advancedhelpmsg(rtm *slack.RTM, ev *slack.MessageEvent) {
+	help2 := "```" +
+		".created       view creation timestamp\n" +
+		".owner:        who created the lore\n" +
+		".removed:      view removal timestamp\n" +
+		".removedby:    who removed the lore" +
+		"```"
+
+	rtm.SendMessage(rtm.NewOutgoingMessage(help2, ev.Channel))
+}
+
+func lorehandler(redisClient *redis.Client, rtm *slack.RTM, ev *slack.MessageEvent, rawMessage string) {
 	loreTerm := strings.Replace(rawMessage, ".lore", "", -1)
 	println("searching for:", loreTerm)
-	rtm.SendMessage(rtm.NewOutgoingMessage(fmt.Sprintf("searching for '%s'\n", loreTerm), ev.Channel))
+	//rtm.SendMessage(rtm.NewOutgoingMessage(fmt.Sprintf("searching for '%s'\n", loreTerm), ev.Channel))
+
+	content, err := checkLore(loreTerm, redisClient)
+	if err == nil {
+		// lore found, print it
+		rtm.SendMessage(rtm.NewOutgoingMessage(content, ev.Channel))
+	} else {
+		// lore not found, print error
+		rtm.SendMessage(rtm.NewOutgoingMessage(fmt.Sprintf("lore '%s' not found\n", loreTerm), ev.Channel))
+	}
+}
+
+func checkLore(searchTerm string, redisClient *redis.Client) (string, error) {
+	val, err := redisClient.Get(fmt.Sprintf("lore:%s:content", searchTerm)).Result()
+	if err != nil {
+		return "", errors.New("String not found.")
+	} else {
+		return val, nil
+	}
+	//return "", nil
 }