meme: add signature icon

connectors/slackapp/slackApp.go

@@ -422,7 +422,12 @@ func (s *SlackApp) buildMessage(m *slackevents.MessageEvent) msg.Message {
 	if m.BotID != "" {
 		defaultName = m.Username
 	}
+	icon := ""
+	log.Debug().Msgf("Getting user %s", m.User)
 	name, u := s.getUser(m.User, defaultName)
+	if u != nil {
+		icon = u.Profile.Image192
+	}
 	if m.Username != "" && name == "unknown" {
 		name = m.Username
 	}
@@ -438,7 +443,7 @@ func (s *SlackApp) buildMessage(m *slackevents.MessageEvent) msg.Message {
 		User: &user.User{
 			ID:   m.User,
 			Name: name,
-			Icon: u.Profile.Image192,
+			Icon: icon,
 		},
 		Body:        text,
 		Raw:         m,
@@ -637,14 +642,23 @@ func (s *SlackApp) reactionReceived(event *slack.ReactionAddedEvent) error {
 }
 
 func (s *SlackApp) Profile(name string) (user.User, error) {
-	n, u := s.getUser(name, "unknown")
-	if n == "unknown" {
-		return user.User{}, fmt.Errorf("user %s is not known to us", name)
+	log.Debug().Msgf("Getting profile for %s", name)
+
+	users, err := s.api.GetUsers()
+	if err != nil {
+		return user.User{}, err
 	}
-	return user.User{
-		ID:    u.ID,
-		Name:  n,
-		Admin: false,
-		Icon:  u.Profile.Image192,
-	}, nil
+
+	for _, u := range users {
+		if u.Name == name {
+			return user.User{
+				ID:    u.ID,
+				Name:  stringForUser(&u),
+				Admin: false,
+				Icon:  u.Profile.Image192,
+			}, nil
+		}
+	}
+
+	return user.User{}, fmt.Errorf("user %s not found", err)
 }

plugins/meme/meme.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"html/template"
 	"image"
+	"image/color"
+	"image/draw"
 	"image/png"
 	"net/http"
 	"net/url"
@@ -214,14 +216,25 @@ func (p *MemePlugin) slashMeme(c bot.Connector) http.HandlerFunc {
 		isCmd, message := bot.IsCmd(p.c, parts[1])
 		format := parts[0]
 
+		bullyIcon := ""
+
 		for _, bully := range p.c.GetArray("meme.bully", []string{}) {
 			if format == bully {
+				if u, err := c.Profile(bully); err == nil {
+					bullyIcon = u.Icon
+				} else {
+					log.Debug().Err(err).Msgf("could not get profile for %s", format)
+				}
 				formats := p.c.GetMap("meme.memes", defaultFormats)
 				format = randEntry(formats)
 				break
 			}
 		}
 
+		if u, err := c.Profile(from); bullyIcon == "" && err == nil {
+			bullyIcon = u.Icon
+		}
+
 		log.Debug().Strs("parts", parts).Msgf("Meme:\n%+v", text)
 		w.WriteHeader(200)
 		w.Write(nil)
@@ -239,7 +252,7 @@ func (p *MemePlugin) slashMeme(c bot.Connector) http.HandlerFunc {
 				message = top
 			}
 
-			id, err := p.genMeme(format, top, bottom)
+			id, err := p.genMeme(format, top, bottom, bullyIcon)
 			if err != nil {
 				msg := fmt.Sprintf("Hey %s, I couldn't download that image you asked for.", from)
 				p.bot.Send(c, bot.Message, channel, msg)
@@ -304,7 +317,7 @@ var defaultFormats = map[string]string{
 	"raptor": "Philosoraptor.jpg",
 }
 
-func (p *MemePlugin) genMeme(meme, top, bottom string) (string, error) {
+func (p *MemePlugin) genMeme(meme, top, bottom, bully string) (string, error) {
 	fontSizes := []float64{48, 36, 24, 16, 12}
 	fontSize := fontSizes[0]
 
@@ -354,6 +367,10 @@ func (p *MemePlugin) genMeme(meme, top, bottom string) (string, error) {
 	h = r.Dy()
 	log.Debug().Msgf("resized to %v, %v", w, h)
 
+	if bully != "" {
+		img = p.applyBully(img, bully)
+	}
+
 	m := gg.NewContext(w, h)
 	m.DrawImage(img, 0, 0)
 	fontLocation := p.c.Get("meme.font", "impact.ttf")
@@ -407,3 +424,57 @@ func (p *MemePlugin) genMeme(meme, top, bottom string) (string, error) {
 
 	return path, nil
 }
+
+func (p *MemePlugin) applyBully(img image.Image, bully string) image.Image {
+	log.Debug().Msgf("applying bully: %s", bully)
+	dst := image.NewRGBA(img.Bounds())
+	u, err := url.Parse(bully)
+	if err != nil {
+		return img
+	}
+	bullyImg, err := DownloadTemplate(u)
+	if err != nil {
+		return img
+	}
+
+	scaleFactor := p.c.GetFloat64("meme.bullyScale", 0.1)
+
+	newSzX := uint(float64(img.Bounds().Max.X) * scaleFactor)
+	newSzY := uint(float64(img.Bounds().Max.Y) * scaleFactor)
+
+	bullyImg = resize.Resize(newSzX, newSzY, bullyImg, resize.Lanczos3)
+
+	draw.Draw(dst, img.Bounds(), img, image.Point{}, draw.Src)
+	srcSz := img.Bounds().Size()
+
+	w, h := bullyImg.Bounds().Max.X, bullyImg.Bounds().Max.Y
+
+	pt := image.Point{srcSz.X - w, srcSz.Y - h}
+	rect := image.Rect(pt.X, pt.Y, srcSz.X, srcSz.Y)
+
+	//draw.Draw(dst, image.Rect(srcSz.X-128, srcSz.Y-128, srcSz.X, srcSz.Y), bullyImg, image.Point{}, draw.Src)
+	draw.DrawMask(dst, rect, bullyImg, image.Point{}, &circle{image.Point{w / 2, h / 2}, w / 2}, image.Point{}, draw.Over)
+	return dst
+}
+
+// the following is ripped off of https://blog.golang.org/image-draw
+type circle struct {
+	p image.Point
+	r int
+}
+
+func (c *circle) ColorModel() color.Model {
+	return color.AlphaModel
+}
+
+func (c *circle) Bounds() image.Rectangle {
+	return image.Rect(c.p.X-c.r, c.p.Y-c.r, c.p.X+c.r, c.p.Y+c.r)
+}
+
+func (c *circle) At(x, y int) color.Color {
+	xx, yy, rr := float64(x-c.p.X)+0.5, float64(y-c.p.Y)+0.5, float64(c.r)
+	if xx*xx+yy*yy < rr*rr {
+		return color.Alpha{255}
+	}
+	return color.Alpha{0}
+}