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dalle.go
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dalle.go
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package openai
import (
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/innogames/slack-bot/v2/bot/matcher"
"github.com/innogames/slack-bot/v2/bot/msg"
"github.com/innogames/slack-bot/v2/bot/stats"
"github.com/innogames/slack-bot/v2/bot/util"
"github.com/innogames/slack-bot/v2/client"
log "github.com/sirupsen/logrus"
"github.com/slack-go/slack"
)
// bot function to generate images with Dall-E
func (c *openaiCommand) dalleGenerateImage(match matcher.Result, message msg.Message) {
// run the generation in the background and as it could take some time
c.AddReaction(":coffee:", message)
go func() {
prompt := match.GetString(util.FullMatch)
images, err := generateImages(c.cfg, prompt)
c.RemoveReaction(":coffee:", message)
if err != nil {
c.ReplyError(message, err)
return
}
// add 📤 emoji to indicate that the image is being uploaded which can take some time via slack
c.AddReaction(":outbox_tray:", message)
defer c.RemoveReaction(":outbox_tray:", message)
startTime := time.Now()
for _, image := range images {
err := c.sendImageInSlack(image, message)
if err != nil {
c.ReplyError(
message,
fmt.Errorf("failed to download image: %s %s", image.URL, err),
)
}
}
log.Infof("Uploading %d images took %s", len(images), time.Since(startTime))
}()
}
func (c *openaiCommand) sendImageInSlack(image DalleResponseImage, message msg.Message) error {
req, err := http.NewRequest("GET", image.URL, nil)
if err != nil {
return err
}
resp, err := httpClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
_, err = c.SlackClient.UploadFile(slack.FileUploadParameters{
Filename: "dalle.png",
Filetype: "png",
Channels: []string{message.Channel},
ThreadTimestamp: message.Timestamp,
Reader: resp.Body,
InitialComment: fmt.Sprintf("Dall-e prompt: %s", image.RevisedPrompt),
})
c.SlackClient.SendBlockMessage(
message,
[]slack.Block{
slack.NewActionBlock(
"",
client.GetInteractionButton("dalle", "Regenerate", fmt.Sprintf("dall-e %s", image.RevisedPrompt)),
),
},
slack.MsgOptionTS(message.Timestamp),
)
return err
}
func generateImages(cfg Config, prompt string) ([]DalleResponseImage, error) {
jsonData, _ := json.Marshal(DalleRequest{
Model: cfg.DalleModel,
Size: cfg.DalleImageSize,
N: cfg.DalleNumberOfImages,
Prompt: prompt,
})
start := time.Now()
resp, err := doRequest(cfg, apiDalleGenerateImageURL, jsonData)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var response DalleResponse
err = json.NewDecoder(resp.Body).Decode(&response)
if err != nil {
return nil, err
}
if response.Error.Message != "" {
return nil, fmt.Errorf(response.Error.Message)
}
log.WithField("model", cfg.DalleModel).
Infof("Dall-E image generation took %s", time.Since(start))
stats.Increase("openai_dalle_images", len(response.Data))
return response.Data, nil
}