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// Package jufra lets Mimi have conversations with users.
//
// "jufra" means "utterance" in Lojban.
package jufra
import (
"bytes"
"context"
"encoding/json"
"flag"
"log/slog"
"strings"
"sync"
"github.com/bwmarrin/discordgo"
"within.website/x/cmd/mimi/internal"
"within.website/x/web/ollama"
"within.website/x/web/ollama/llamaguard"
"within.website/x/web/openai/chatgpt"
)
var (
chatChannels = flag.String("jufra-chat-channels", "217096701771513856,1266740925137289287", "comma-separated list of channels to allow chat in")
llamaGuardModel = flag.String("jufra-llama-guard-model", "xe/llamaguard3", "ollama model tag for llama guard")
mimiModel = flag.String("jufra-mimi-model", "xe/mimi:llama3.1", "ollama model tag for mimi")
)
type Module struct {
sess *discordgo.Session
cli chatgpt.Client
ollama *ollama.Client
convHistory map[string][]ollama.Message
lock sync.Mutex
}
func New(sess *discordgo.Session) *Module {
result := &Module{
sess: sess,
cli: chatgpt.NewClient("").WithBaseURL(internal.OllamaHost()),
ollama: internal.OllamaClient(),
convHistory: make(map[string][]ollama.Message),
}
sess.AddHandler(result.messageCreate)
if _, err := sess.ApplicationCommandCreate("1119055490882732105", "", &discordgo.ApplicationCommand{
Name: "clearconv",
Type: discordgo.ChatApplicationCommand,
Description: "Clear the conversation history for the current channel",
DefaultMemberPermissions: &[]int64{discordgo.PermissionSendMessages}[0],
}); err != nil {
slog.Error("error creating clearconv command", "err", err)
}
sess.AddHandler(result.clearConv)
return result
}
func (m *Module) clearConv(s *discordgo.Session, i *discordgo.InteractionCreate) {
if i.ApplicationCommandData().Name != "clearconv" {
return
}
m.lock.Lock()
defer m.lock.Unlock()
delete(m.convHistory, i.ChannelID)
s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
Type: discordgo.InteractionResponseChannelMessageWithSource,
Data: &discordgo.InteractionResponseData{
Content: "conversation history cleared",
},
})
}
func (m *Module) messageCreate(s *discordgo.Session, mc *discordgo.MessageCreate) {
if mc.Author.Bot {
return
}
if !strings.Contains(*chatChannels, mc.ChannelID) {
return
}
if mc.Content == "" {
return
}
m.lock.Lock()
defer m.lock.Unlock()
conv := m.convHistory[mc.ChannelID]
nick := mc.Author.Username
gu, err := s.State.Member(mc.GuildID, mc.Author.ID)
if err != nil {
slog.Error("error getting member", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
} else {
nick = gu.Nick
}
s.ChannelTyping(mc.ChannelID)
conv = append(conv, ollama.Message{
Role: "user",
Content: jsonString(map[string]any{
"content": mc.Content,
"user": nick,
}),
})
slog.Info("message count", "len", len(conv))
lgResp, err := m.llamaGuardCheck(context.Background(), "user", conv)
if err != nil {
slog.Error("error checking message", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
s.ChannelMessageSend(mc.ChannelID, "error checking message")
return
}
if !lgResp.IsSafe {
msg, err := m.llamaGuardComplain(context.Background(), "user", lgResp)
if err != nil {
slog.Error("error generating response", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
s.ChannelMessageSend(mc.ChannelID, "error generating response")
return
}
s.ChannelMessageSend(mc.ChannelID, msg)
return
}
cr := &ollama.CompleteRequest{
Model: *mimiModel,
Messages: conv,
}
resp, err := m.ollama.Chat(context.Background(), cr)
if err != nil {
slog.Error("error chatting", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
s.ChannelMessageSend(mc.ChannelID, "error chatting")
return
}
conv = append(conv, resp.Message)
lgResp, err = m.llamaGuardCheck(context.Background(), "mimi", conv)
if err != nil {
slog.Error("error checking message", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
s.ChannelMessageSend(mc.ChannelID, "error checking message")
return
}
if !lgResp.IsSafe {
slog.Error("rule violation detected", "message_id", mc.ID, "channel_id", mc.ChannelID, "categories", lgResp.ViolationCategories, "message", resp.Message.Content)
msg, err := m.llamaGuardComplain(context.Background(), "assistant", lgResp)
if err != nil {
slog.Error("error generating response", "err", err, "message_id", mc.ID, "channel_id", mc.ChannelID)
s.ChannelMessageSend(mc.ChannelID, "error generating response")
return
}
s.ChannelMessageSend(mc.ChannelID, msg)
return
}
s.ChannelMessageSend(mc.ChannelID, resp.Message.Content)
m.convHistory[mc.ChannelID] = conv
}
func (m *Module) llamaGuardCheck(ctx context.Context, role string, messages []ollama.Message) (*llamaguard.Response, error) {
return llamaguard.Check(ctx, m.ollama, role, *llamaGuardModel, messages)
}
func (m *Module) llamaGuardComplain(ctx context.Context, from string, lgResp *llamaguard.Response) (string, error) {
var sb strings.Builder
sb.WriteString("⚠️ Rule violation detected from ")
sb.WriteString(from)
sb.WriteString(":\n")
for _, cat := range lgResp.ViolationCategories {
sb.WriteString("- ")
sb.WriteString(cat.String())
sb.WriteString("\n")
}
return sb.String(), nil
}
func jsonString(val any) string {
var buf bytes.Buffer
enc := json.NewEncoder(&buf)
if err := enc.Encode(val); err != nil {
slog.Error("error encoding json", "err", err)
return ""
}
return buf.String()
}
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