3 files changed, 154 insertions, 0 deletions
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6b91dbf
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module git.uakci.pl/misc/uniqueglish
+
+go 1.16
+
+require github.com/bwmarrin/discordgo v0.23.2
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..28dbed2
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,6 @@
+github.com/bwmarrin/discordgo v0.23.2 h1:BzrtTktixGHIu9Tt7dEE6diysEF9HWnXeHuoJEt2fH4=
+github.com/bwmarrin/discordgo v0.23.2/go.mod h1:c1WtWUGN6nREDmzIpyTp/iD3VYt4Fpx+bVyfBG7JE+M=
+github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
+github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16 h1:y6ce7gCWtnH+m3dCjzQ1PCuwl28DDIc3VNnvY29DlIA=
+golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..8af1dd5
--- /dev/null
+++ b/main.go
@@ -0,0 +1,143 @@
+package main
+
+import (
+  "github.com/bwmarrin/discordgo"
+  "sync"
+  "os"
+  "os/signal"
+  "fmt"
+  "regexp"
+  "strings"
+)
+
+var (
+  WORD_REGEX = regexp.MustCompile(`[a-z'’]+`)
+  mu = sync.RWMutex{}
+  words = map[string]struct{}{}
+  channel string
+)
+
+func getWords(m *discordgo.Message) []string {
+  result := WORD_REGEX.FindAllString(strings.ToLower(m.Content), -1)
+  return result
+}
+
+func add(m *discordgo.Message) {
+  if m.ChannelID != channel || m.Author.Bot {
+    return
+  }
+  mu.Lock()
+  for _, word := range getWords(m) {
+    words[word] = struct{}{}
+  }
+  mu.Unlock()
+}
+
+func report() {
+  mu.RLock()
+  fmt.Printf("at %d words now\n", len(words))
+  mu.RUnlock()
+}
+
+func confer(s *discordgo.Session, m *discordgo.Message) {
+  if m.ChannelID != channel || m.Author.Bot {
+    return
+  }
+  mu.RLock()
+  abominable := []string{}
+  for _, word := range getWords(m) {
+    if _, ok := words[word]; ok {
+      abominable = append(abominable, word)
+    }
+  }
+  mu.RUnlock()
+  if len(abominable) > 0 {
+    builder := strings.Builder{}
+    for i, abomination := range abominable {
+      if i > 0 {
+        builder.WriteString(", ")
+      }
+      fmt.Fprintf(&builder, "**%s**", abomination)
+    }
+    _, e := s.ChannelMessageSendReply(m.ChannelID, builder.String(), m.Reference())
+    yell(e)
+  }
+}
+
+func must(e error) {
+  if e != nil {
+    panic(e)
+  }
+}
+
+func yell(e error) {
+  if e != nil {
+    fmt.Fprintln(os.Stderr, e)
+  }
+}
+
+func respond(session *discordgo.Session, message *discordgo.Message) {
+  switch message.Type {
+  case discordgo.MessageTypeDefault, discordgo.MessageTypeReply:
+    confer(session, message)
+    go func() {
+      add(message)
+      report()
+    }()
+  }
+}
+
+func main() {
+  var ok bool
+  channel, ok = os.LookupEnv("CHANNEL")
+  if !ok {
+    panic(ok)
+  }
+  session, e := discordgo.New(fmt.Sprintf("Bot %s", os.Getenv("TOKEN")))
+  must(e)
+
+  session.AddHandler(func(s *discordgo.Session, m *discordgo.MessageCreate) {
+    respond(s, m.Message)
+  })
+
+  session.AddHandler(func(s *discordgo.Session, m *discordgo.MessageUpdate) {
+    respond(s, m.Message)
+  })
+
+  must(session.Open())
+  var (
+    last string
+    count = 0
+  )
+  for {
+    got, e := session.ChannelMessages(channel, 100, last, "", "")
+    if e != nil {
+      yell(e)
+      continue
+    }
+    if len(got) == 0 {
+      break
+    }
+    last = got[len(got)-1].ID
+    count += len(got)
+    fmt.Printf("msgs: %d >= %s\n", count, last)
+    go func() {
+      for _, m := range got {
+        add(m)
+      }
+      report()
+    }()
+  }
+  fmt.Printf("done! (%d msgs)\n", count)
+	mu.RLock()
+	for k := range words {
+		fmt.Printf("%s ", k)
+	}
+	fmt.Println()
+	mu.RUnlock()
+
+  broken := make(chan os.Signal, 1)
+  signal.Notify(broken, os.Interrupt, os.Kill)
+  <-broken
+  must(session.Close())
+}