LocalAI/interactive.go
2023-03-21 19:21:58 +01:00

143 lines
3.0 KiB
Go

package main
// A simple program demonstrating the text area component from the Bubbles
// component library.
import (
"fmt"
"strings"
"github.com/charmbracelet/bubbles/textarea"
"github.com/charmbracelet/bubbles/viewport"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
llama "github.com/go-skynet/llama/go"
)
func startInteractive(l *llama.LLama, opts ...llama.PredictOption) error {
p := tea.NewProgram(initialModel(l, opts...))
_, err := p.Run()
return err
}
type (
errMsg error
)
type model struct {
viewport viewport.Model
messages *[]string
textarea textarea.Model
senderStyle lipgloss.Style
err error
l *llama.LLama
opts []llama.PredictOption
predictC chan string
}
func initialModel(l *llama.LLama, opts ...llama.PredictOption) model {
ta := textarea.New()
ta.Placeholder = "Send a message..."
ta.Focus()
ta.Prompt = "┃ "
ta.CharLimit = 280
ta.SetWidth(200)
ta.SetHeight(3)
// Remove cursor line styling
ta.FocusedStyle.CursorLine = lipgloss.NewStyle()
ta.ShowLineNumbers = false
vp := viewport.New(200, 5)
vp.SetContent(`Welcome to llama-cli. Type a message and press Enter to send. Alpaca doesn't keep context of the whole chat (yet).`)
ta.KeyMap.InsertNewline.SetEnabled(false)
predictChannel := make(chan string)
messages := []string{}
m := model{
textarea: ta,
messages: &messages,
viewport: vp,
senderStyle: lipgloss.NewStyle().Foreground(lipgloss.Color("5")),
err: nil,
l: l,
opts: opts,
predictC: predictChannel,
}
go func() {
for p := range predictChannel {
str, _ := templateString(emptyInput, struct {
Instruction string
Input string
}{Instruction: p})
res, _ := l.Predict(
str,
opts...,
)
mm := *m.messages
*m.messages = mm[:len(mm)-1]
*m.messages = append(*m.messages, m.senderStyle.Render("llama: ")+res)
m.viewport.SetContent(strings.Join(*m.messages, "\n"))
ta.Reset()
m.viewport.GotoBottom()
}
}()
return m
}
func (m model) Init() tea.Cmd {
return textarea.Blink
}
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var (
tiCmd tea.Cmd
vpCmd tea.Cmd
)
m.textarea, tiCmd = m.textarea.Update(msg)
m.viewport, vpCmd = m.viewport.Update(msg)
switch msg := msg.(type) {
case tea.WindowSizeMsg:
// m.viewport.Width = msg.Width
// m.viewport.Height = msg.Height
case tea.KeyMsg:
switch msg.Type {
case tea.KeyCtrlC, tea.KeyEsc:
fmt.Println(m.textarea.Value())
return m, tea.Quit
case tea.KeyEnter:
*m.messages = append(*m.messages, m.senderStyle.Render("You: ")+m.textarea.Value(), m.senderStyle.Render("Loading response..."))
m.predictC <- m.textarea.Value()
m.viewport.SetContent(strings.Join(*m.messages, "\n"))
m.textarea.Reset()
m.viewport.GotoBottom()
}
// We handle errors just like any other message
case errMsg:
m.err = msg
return m, nil
}
return m, tea.Batch(tiCmd, vpCmd)
}
func (m model) View() string {
return fmt.Sprintf(
"%s\n\n%s",
m.viewport.View(),
m.textarea.View(),
) + "\n\n"
}