feat(ebooks): Add tvl-ebooks code

Change-Id: If519e789a91fbf427373daa383c6ae00ba5e0b6c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2007
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

fun/tvl-ebooks/irc-ingest/main.go

@@ -0,0 +1,99 @@
+package main
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"time"
+
+	"github.com/go-redis/redis"
+	"gopkg.in/irc.v3"
+)
+
+var messageBeat chan bool
+
+func main() {
+	conn, err := tls.Dial("tcp", "bnc.irccloud.com:6697", nil)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	messageBeat = make(chan bool)
+	go ircKeepalive()
+
+	redisc := redis.NewClient(&redis.Options{
+		Addr:     fmt.Sprintf("127.0.0.1:%d", 6379),
+		Password: "", // no password set
+		DB:       0,  // use default DB
+	})
+
+	go func() {
+		for {
+			time.Sleep(time.Second)
+			r := redisc.Ping()
+			if r.Err() != nil {
+				redisc = redis.NewClient(&redis.Options{
+					Addr:     fmt.Sprintf("127.0.0.1:%d", 6379),
+					Password: "", // no password set
+					DB:       0,  // use default DB
+				})
+			}
+		}
+	}()
+
+	config := irc.ClientConfig{
+		Nick: "Benjojo",
+		Pass: os.Getenv("IRCCLOUD"),
+		User: "Benjojo",
+		Name: "Ben Cox",
+		Handler: irc.HandlerFunc(func(c *irc.Client, m *irc.Message) {
+			b, _ := json.Marshal(m)
+			// log.Printf("%#v", string(b))
+
+			messageBeat <- true
+			res := redisc.Publish("irccloud", string(b))
+			if res.Err() != nil {
+				log.Printf("Publish error! %#v", err)
+			}
+			// if m.Command == "001" {
+			// 	// 001 is a welcome event, so we join channels there
+			// 	// c.Write("JOIN #bot-test-chan")
+			// } else if m.Command == "PRIVMSG" && c.FromChannel(m) {
+			// 	// // Create a handler on all messages.
+			// 	// c.WriteMessage(&irc.Message{
+			// 	// 	Command: "PRIVMSG",
+			// 	// 	Params: []string{
+			// 	// 		m.Params[0],
+			// 	// 		m.Trailing(),
+			// 	// 	},
+			// 	// })
+			// }
+		}),
+	}
+
+	// Create the client
+	client := irc.NewClient(conn, config)
+	err = client.Run()
+	if err != nil {
+		log.Fatalln(err)
+	}
+}
+
+func ircKeepalive() {
+	tt := time.NewTimer(time.Second)
+	lastPing := time.Now()
+	for {
+		select {
+		case <-tt.C:
+			if time.Since(lastPing) > time.Minute*5 {
+				log.Fatalf("It's been too long since the last IRC message, blowing up")
+			}
+			break
+		case <-messageBeat:
+			lastPing = time.Now()
+		}
+	}
+
+}