initial, incomplete work in IRC support

config.go

@@ -38,6 +38,24 @@ type HttpCallbackConfig struct {
 	Method string `yaml:"method"`
 }
 
+type IrcConfig struct {
+	Server string `yaml:"server"`
+	Port   int    `yaml:"port"`
+	/// Nick which will be used. Users on IRC will see the bot as this nick.
+	Nick string `yaml:"nick"`
+	/// Username presented to the server
+	User string `yaml:"user"`
+	/// Name presented to the server
+	Name string `yaml:"name"`
+	/// Usually the username used for NickServ login
+	SaslUser string `yaml:"sasl-user"`
+	/// Usually the password used for NickServ password
+	SaslPass string `yaml:"sasl-pass"`
+	SSL      bool   `yaml:"ssl"`
+	/// Channels to which this bot will join, send status to and receive commands from
+	Channels []string `yaml:"channels"`
+}
+
 type AppConfig struct {
 	SatelAddr          string               `yaml:"satel-addr"`
 	ChatIds            []int64              `yaml:"tg-chat-ids"`
@@ -49,6 +67,7 @@ type AppConfig struct {
 	AlarmCallbacks     []HttpCallbackConfig `yaml:"alarm-callbacks"`
 	WriteMemoryProfile bool                 `yaml:"write-memory-profile"`
 	Matterbridge       []MatterbridgeConfig `yaml:"matterbridge"`
+	Irc                []IrcConfig          `yaml:"irc"`
 	TelegramApiKey     string               `yaml:"telegram-api-key"`
 }
 
@@ -182,5 +201,10 @@ func MakeConfig(logger *log.Logger) AppConfig {
 	}
 
 	getCmdLineParams(&config, logger)
+
+	if len(config.Irc) > 1 {
+		logger.Fatal("Configuring of more than one IRC connection is not supported.")
+	}
+
 	return config
 }

config_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"log"
 	"os"
 	"testing"
@@ -50,6 +51,21 @@ matterbridge:
    username: test_username_2
 `
 
+const ircConfig = `
+irc:
+  - server: irc.libera.chat
+    port: 6697
+    nick: testbot
+    user: testbot
+    name: "Test Bot"
+    sasl-user: testbot
+    sasl-pass: testbotpassword
+    ssl: True
+    channels:
+      - "#hswro"
+      - "#testchannelpleaseignore"
+`
+
 func TestParseYamlConfig(t *testing.T) {
 	a := assert.New(t)
 
@@ -76,4 +92,18 @@ func TestParseYamlConfig(t *testing.T) {
 	a.Equal(actualConfig.Matterbridge[1].Token, "test_token_2")
 	a.Equal(actualConfig.Matterbridge[1].Gateway, "test_gateway_2")
 	a.Equal(actualConfig.Matterbridge[1].Username, "test_username_2")
+
+	a.Nil(actualConfig.Irc)
+}
+
+func TestParseYamlConfig_IrcConfig(t *testing.T) {
+	a := assert.New(t)
+
+	actualConfig := parseConfigFromFile(
+		bytes.Join([][]byte{[]byte(data), []byte(ircConfig)}, []byte{}),
+		log.New(os.Stderr, "", log.Ltime))
+
+	a.ElementsMatch([]IrcConfig{{
+		"irc.libera.chat", 6697, "testbot", "testbot", "Test Bot", "testbot", "testbotpassword", true,
+		[]string{"#hswro", "#testchannelpleaseignore"}}}, actualConfig.Irc)
 }

go.mod

@@ -5,14 +5,15 @@ go 1.19
 require (
 	git.sr.ht/~michalr/go-satel v0.0.0-20240306182245-7ac13d8e4733
 	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
+	github.com/lrstanley/girc v0.0.0-20250219025855-423afa8a8828
 	github.com/stretchr/testify v1.8.4
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 replace github.com/probakowski/go-satel => git.sr.ht/~michalr/go-satel v0.0.0-20211120120346-bed9818777ce

go.sum

@@ -15,6 +15,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1 h1:wG8n/XJQ07TmjbITcGiUaOtXxdrINDz1b0J1w0SzqDc=
 github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1/go.mod h1:A2S0CWkNylc2phvKXWBBdD3K0iGnDBGbzRpISP2zBl8=
+github.com/lrstanley/girc v0.0.0-20250219025855-423afa8a8828 h1:tJcJDAvGGM1xy1gt6A/7jzTLOnjJsDTxOkykzEgoh9w=
+github.com/lrstanley/girc v0.0.0-20250219025855-423afa8a8828/go.mod h1:lgrnhcF8bg/Bd5HA5DOb4Z+uGqUqGnp4skr+J2GwVgI=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

irc.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"html/template"
+	"log"
+	"time"
+
+	"github.com/lrstanley/girc"
+)
+
+type IrcBot struct {
+	client *girc.Client
+	logger *log.Logger
+	s      SatelNameGetter
+	config AppConfig
+}
+
+func MakeIrcBot(config AppConfig, logger *log.Logger, s SatelNameGetter) *IrcBot {
+	if config.Irc == nil {
+		return nil
+	}
+	client := girc.New(girc.Config{
+		Server: config.Irc[0].Server,
+		Port:   config.Irc[0].Port,
+		Nick:   config.Irc[0].Nick,
+		User:   config.Irc[0].User,
+		Name:   config.Irc[0].Name,
+		Out:    logger.Writer(),
+	})
+
+	return &IrcBot{client, logger, s, config}
+}
+
+func (bot *IrcBot) GetInterestingChannels() []girc.Channel {
+	return []girc.Channel{}
+}
+
+func (bot *IrcBot) SendMessageToAllChannels(msg string) {
+	for i, channel := range bot.GetInterestingChannels() {
+		if i != 0 {
+			// to avoid sending too many messages at once
+			// do it only if we have more than one message to send
+			time.Sleep(time.Millisecond * 500)
+		}
+		bot.client.Cmd.Message(channel.Name, msg)
+	}
+}
+
+type NotifyViaIRCSync struct {
+	SyncFilterImpl[GenericMessage]
+
+	bot *IrcBot
+	tpl *template.Template
+}
+
+func (bot *IrcBot) GetNotifyViaIRC(tpl *template.Template) *NotifyViaIRCSync {
+	return &NotifyViaIRCSync{SyncFilterImpl[GenericMessage]{}, bot, tpl}
+}
+
+func (notifyViaIRC *NotifyViaIRCSync) Call(msg GenericMessage) {
+	notifyViaIRC.bot.SendMessageToAllChannels(
+		msg.Format(notifyViaIRC.tpl, notifyViaIRC.bot.s, notifyViaIRC.bot.logger))
+
+	notifyViaIRC.CallNext(msg)
+}