move the specification of replacements into the config file

config/config.go

@@ -54,11 +54,8 @@ type Config struct {
 		Hosts []string
 	}
 	Your struct {
-		YourChance    float64
-		FuckingChance float64
-		DuckingChance float64
-		NegativeChance float64
 		MaxLength     int
+		Replacements []Replacement
 	}
 	LeftPad struct {
 		MaxLen int
@@ -75,6 +72,12 @@ type Config struct {
 	}
 }
 
+type Replacement struct {
+	This string
+	That string
+	Frequency float64
+}
+
 // Readconfig loads the config data out of a JSON file located in cfile
 func Readconfig(version, cfile string) *Config {
 	fmt.Printf("Using %s as config file.\n", cfile)

example_config.json

@@ -45,11 +45,10 @@
 		"Hosts": []
 	},
 	"Your": {
-		"YourChance": 0.4,
-		"FuckingChance": 0.15,
-		"DuckingChance": 0.5,
-		"NegativeChance": 0.5,
-		"MaxLength": 140
+		"MaxLength": 140,
+		"Replacements": [
+			{ "This": "this", "That": "that", "Frequency": 1.0 },
+		]
 	},
 	"LeftPad": {
 		"MaxLen": 50,

plugins/your/your.go

@@ -3,17 +3,18 @@
 package your
 
 import (
-	"log"
 	"math/rand"
 	"strings"
 	"time"
 
 	"github.com/velour/catbase/bot"
 	"github.com/velour/catbase/bot/msg"
+	"github.com/velour/catbase/config"
 )
 
 type YourPlugin struct {
 	bot bot.Bot
+	config *config.Config
 }
 
 // NewYourPlugin creates a new YourPlugin with the Plugin interface
@@ -21,6 +22,7 @@ func New(bot bot.Bot) *YourPlugin {
 	rand.Seed(time.Now().Unix())
 	return &YourPlugin{
 		bot: bot,
+		config: bot.Config(),
 	}
 }
 
@@ -28,60 +30,19 @@ func New(bot bot.Bot) *YourPlugin {
 // This function returns true if the plugin responds in a meaningful way to the users message.
 // Otherwise, the function returns false and the bot continues execution of other plugins.
 func (p *YourPlugin) Message(message msg.Message) bool {
-	lower := strings.ToLower(message.Body)
-	config := p.bot.Config().Your
-	if len(message.Body) > config.MaxLength {
+	if len(message.Body) > p.config.Your.MaxLength {
 		return false
 	}
-
-	if strings.Contains(message.Body, "the fucking") { // let's not mess with case
-		log.Println("Found a fucking")
-		if rand.Float64() < config.FuckingChance {
-			log.Println("Replacing a fucking")
-			r := strings.NewReplacer("the fucking", "fucking the")
-			msg := r.Replace(message.Body)
-			p.bot.SendMessage(message.Channel, msg)
-			return true
+	msg := message.Body
+	for _, replacement := range p.config.Your.Replacements {
+		if rand.Float64() < replacement.Frequency {
+			r := strings.NewReplacer(replacement.This, replacement.That)
+			msg = r.Replace(msg)
 		}
 	}
-	if strings.Contains(message.Body, "ducking") || strings.Contains(message.Body, "fucking") { // let's not mess with case
-		log.Println("Found a fucking|ducking")
-		if rand.Float64() < config.DuckingChance {
-			log.Println("Replacing a ducking")
-			r := strings.NewReplacer("fucking", "ducking", "ducking", "fucking")
-			msg := r.Replace(message.Body)
-			p.bot.SendMessage(message.Channel, msg)
-			return true
-		}
-	}
-	if strings.Contains(lower, "your") || strings.Contains(lower, "you're") {
-		if rand.Float64() < config.YourChance {
-			r := strings.NewReplacer("Your", "You're", "your", "you're", "You're",
-				"Your", "you're", "your", "Youre", "Your", "youre", "your")
-			msg := r.Replace(message.Body)
-			p.bot.SendMessage(message.Channel, msg)
-			return true
-		}
-	}
-	if strings.Contains(message.Body, " is ") {
-		log.Println("Found an is")
-		if rand.Float64() < config.NegativeChance {
-			log.Println("Replacing an is")
-			r := strings.NewReplacer(" is ", " is not ")
-			msg := r.Replace(message.Body)
-			p.bot.SendMessage(message.Channel, msg)
-			return true
-		}
-	}
-	if strings.Contains(message.Body, " are ") {
-		log.Println("Found an are")
-		if rand.Float64() < config.NegativeChance {
-			log.Println("Replacing an are")
-			r := strings.NewReplacer(" are ", " are not ")
-			msg := r.Replace(message.Body)
-			p.bot.SendMessage(message.Channel, msg)
-			return true
-		}
+	if msg != message.Body {
+		p.bot.SendMessage(message.Channel, msg)
+		return true
 	}
 	return false
 }

plugins/your/your_test.go

@@ -0,0 +1,71 @@
+// © 2013 the CatBase Authors under the WTFPL. See AUTHORS for the list of authors.
+
+package your
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/velour/catbase/bot"
+	"github.com/velour/catbase/bot/msg"
+	"github.com/velour/catbase/bot/user"
+	"github.com/velour/catbase/config"
+)
+
+func makeMessage(payload string) msg.Message {
+	isCmd := strings.HasPrefix(payload, "!")
+	if isCmd {
+		payload = payload[1:]
+	}
+	return msg.Message{
+		User:    &user.User{Name: "tester"},
+		Channel: "test",
+		Body:    payload,
+		Command: isCmd,
+	}
+}
+
+func TestReplacement(t *testing.T) {
+	mb := bot.NewMockBot()
+	c := New(mb)
+	assert.NotNil(t, c)
+	c.config.Your.MaxLength = 1000
+	c.config.Your.Replacements = []config.Replacement{
+		config.Replacement{
+			This:      "fuck",
+			That:      "duck",
+			Frequency: 1.0,
+		},
+	}
+	res := c.Message(makeMessage("fuck a duck"))
+	assert.Len(t, mb.Messages, 1)
+	assert.True(t, res)
+	assert.Contains(t, mb.Messages[0], "duck a duck")
+}
+
+func TestNoReplacement(t *testing.T) {
+	mb := bot.NewMockBot()
+	c := New(mb)
+	assert.NotNil(t, c)
+	c.config.Your.MaxLength = 1000
+	c.config.Your.Replacements = []config.Replacement{
+		config.Replacement{
+			This:      "nope",
+			That:      "duck",
+			Frequency: 1.0,
+		},
+		config.Replacement{
+			This:      " fuck",
+			That:      "duck",
+			Frequency: 1.0,
+		},
+		config.Replacement{
+			This:      "Fuck",
+			That:      "duck",
+			Frequency: 1.0,
+		},
+	}
+	c.Message(makeMessage("fuck a duck"))
+	assert.Len(t, mb.Messages, 0)
+}