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/parse-logs/main.go

@@ -0,0 +1,174 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"math/rand"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/go-redis/redis"
+)
+
+type incomingIRC struct {
+	Command string   `json:"Command"`
+	Host    string   `json:"Host"`
+	Name    string   `json:"Name"`
+	Params  []string `json:"Params"`
+	User    string   `json:"User"`
+}
+
+var quicklogMatch = regexp.MustCompile(`<(\w+)> (.+)`)
+
+func main() {
+	redisc := redis.NewClient(&redis.Options{
+		Addr:     fmt.Sprintf("127.0.0.1:%d", 6379),
+		Password: "", // no password set
+		DB:       0,  // use default DB
+	})
+
+	fireaway := make(chan incomingIRC, 10)
+	go func() {
+		f, err := os.Open("tvl.txt")
+		if err != nil {
+			log.Printf("aaa %v", err)
+			os.Exit(0)
+		}
+
+		bio := bufio.NewReader(f)
+		for {
+			line, _, err := bio.ReadLine()
+			if err != nil {
+				break
+			}
+
+			sline := string(line)
+
+			offset := strings.Index(sline, "]")
+
+			notime := sline[offset+1:]
+
+			if quicklogMatch.MatchString(notime) {
+				bits := quicklogMatch.FindAllStringSubmatch(notime, -1)
+				if len(bits) != 0 {
+					if len(bits[0]) != 0 {
+						a := make([]string, 2)
+						a[1] = bits[0][2]
+						ic := incomingIRC{
+							Name:   bits[0][1],
+							Params: a,
+						}
+						log.Printf("aa %#v", ic)
+
+						fireaway <- ic
+					}
+				}
+			}
+
+		}
+
+	}()
+
+	for msg := range fireaway {
+		// Learn
+		learnFromMessage(msg, redisc)
+		// os.Exit(0)
+	}
+}
+
+func generateMesasge(msg incomingIRC, redisc *redis.Client) string {
+	text := msg.Params[1]
+	username := msg.Name
+
+	text = strings.ToLower(text)
+	text = strings.Replace(text, ",", "", -1)
+	text = strings.Replace(text, ",", "", -1)
+	text = strings.Replace(text, ".", "", -1)
+	text = strings.Replace(text, "!", "", -1)
+	text = strings.Replace(text, "?", "", -1)
+
+	words := strings.Split(text, " ")
+	lastWord := propwords(username, words[0], redisc)
+	outputMsg := words[0] + " " + lastWord + " "
+
+	for {
+		lastWord = propwords(username, words[0], redisc)
+		if lastWord == "" || lastWord == "_END_" {
+			return outputMsg
+		}
+
+		outputMsg += lastWord + " "
+		if len(outputMsg) > 100 {
+			return outputMsg
+		}
+	}
+}
+
+func propwords(username string, start string, redisc *redis.Client) string {
+	userHash := redisc.HGetAll(fmt.Sprintf("%s-%s", username, start))
+	userHashMap, err := userHash.Result()
+	if err != nil {
+		genericHash := redisc.HGetAll(fmt.Sprintf("generic-%s", start))
+		userHashMap, err = genericHash.Result()
+	}
+
+	userIntHashMap, totalVectors := stringMaptoIntMap(userHashMap)
+	targetRand := rand.Intn(totalVectors)
+	progresRand := 0
+
+	for k, v := range userIntHashMap {
+		progresRand += v
+		if targetRand > progresRand {
+			return k
+		}
+	}
+
+	for k, _ := range userIntHashMap {
+		return k
+	}
+
+	return ""
+}
+
+func stringMaptoIntMap(in map[string]string) (outMap map[string]int, total int) {
+	outMap = make(map[string]int)
+
+	for k, v := range in {
+		i, err := strconv.ParseInt(v, 10, 64)
+		if err != nil {
+			continue
+		}
+		total += int(i)
+		outMap[k] = int(i)
+	}
+
+	return outMap, total
+}
+
+func learnFromMessage(msg incomingIRC, redisc *redis.Client) {
+	text := msg.Params[1]
+
+	text = strings.ToLower(text)
+	text = strings.Replace(text, ",", "", -1)
+	text = strings.Replace(text, ",", "", -1)
+	text = strings.Replace(text, ".", "", -1)
+	text = strings.Replace(text, "!", "", -1)
+	text = strings.Replace(text, "?", "", -1)
+
+	words := strings.Split(text, " ")
+	username := msg.Name
+
+	for k, word := range words {
+		// HINCRBY myhash field 1
+		nextWord := "_END_"
+		if len(words)-1 != k {
+			nextWord = words[k+1]
+		}
+
+		redisc.HIncrBy(fmt.Sprintf("%s-%s", username, word), nextWord, 1)
+		redisc.HIncrBy(fmt.Sprintf("generic-%s", word), nextWord, 1)
+	}
+}