Add unsplash

go.mod

@@ -3,9 +3,13 @@ module git.fromouter.space/crunchy-rocks/clessy-ng
 go 1.18
 
 require (
+	git.fromouter.space/crunchy-rocks/draw2d v0.0.0-20190208101535-675e82cb6412
+	git.fromouter.space/crunchy-rocks/emoji v0.0.0-20181116142102-2188aadaf093
+	git.fromouter.space/crunchy-rocks/freetype v0.0.0-20181116104610-3115318f2577
 	git.fromouter.space/hamcha/tg v0.1.0
 	git.sr.ht/~hamcha/containers v0.0.3
 	github.com/cockroachdb/pebble v0.0.0-20220323190648-7ad3551b2050
+	github.com/disintegration/imaging v1.6.2
 	github.com/json-iterator/go v1.1.12
 )
 
@@ -26,6 +30,7 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/stretchr/testify v1.7.0 // indirect
 	golang.org/x/exp v0.0.0-20200513190911-00229845015e // indirect
+	golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8 // indirect
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/sys v0.0.0-20210909193231-528a39cd75f3 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect

go.sum

@@ -1,5 +1,11 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+git.fromouter.space/crunchy-rocks/draw2d v0.0.0-20190208101535-675e82cb6412 h1:KvGMuKAnoIAPzx/wn0zi0bvOCuWlamw0MeBezlB3+VI=
+git.fromouter.space/crunchy-rocks/draw2d v0.0.0-20190208101535-675e82cb6412/go.mod h1:aAujBHSXafZajIGoKnkq+Jzf11Io4yK+Wyh0dNAl4uY=
+git.fromouter.space/crunchy-rocks/emoji v0.0.0-20181116142102-2188aadaf093 h1:paVIXZGSzj26O1EsVBRhDgE3hHX5nF9X5Wk1u3x9iDw=
+git.fromouter.space/crunchy-rocks/emoji v0.0.0-20181116142102-2188aadaf093/go.mod h1:bmXZYbLNSGivLP7yQlcQ605b1H1L8kzxAk8A7sAEWx0=
+git.fromouter.space/crunchy-rocks/freetype v0.0.0-20181116104610-3115318f2577 h1:rntW5kRu8s7dN8n7WWLHzAVZrnk7NS9YCdEQwA/O9pk=
+git.fromouter.space/crunchy-rocks/freetype v0.0.0-20181116104610-3115318f2577/go.mod h1:MlK0wT7XDuAuw0l/Z+Es2OHozCbBb2r9VxOy8bU58ow=
 git.fromouter.space/hamcha/tg v0.1.0 h1:cJwL8pElkBtaDn7Bxa14zvlnBTTK8LdcCtcbBg7hEvk=
 git.fromouter.space/hamcha/tg v0.1.0/go.mod h1:aIFj7n5FP+Zr/Zv6I6Kq4ZqhRxC12gXFQcC3iOakv9M=
 git.sr.ht/~hamcha/containers v0.0.3 h1:obG9X8s5iOIahVe+EGpkBDYmUAO78oTi9Y9gRurt334=
@@ -46,6 +52,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/dgraph-io/badger v1.6.0/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhYy6psNgSztDR4=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
+github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
+github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385/go.mod h1:0vRUJqYpeSZifjYj7uP3BG/gKcuzL9xWVV/Y+cK33KM=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -64,6 +72,8 @@ github.com/gin-gonic/gin v1.4.0/go.mod h1:OW2EZn3DO8Ln9oIKOvM++LBO+5UPHJJDH72/q/
 github.com/go-check/check v0.0.0-20180628173108-788fd7840127/go.mod h1:9ES+weclKsC9YodN5RgxqK/VD9HM9JsCSh7rNhMZE98=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
+github.com/go-gl/gl v0.0.0-20180407155706-68e253793080/go.mod h1:482civXOzJJCPzJ4ZOX/pwvXBWSnzD4OKMdH4ClKGbk=
+github.com/go-gl/glfw v0.0.0-20180426074136-46a8d530c326/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-martini/martini v0.0.0-20170121215854-22fa46961aab/go.mod h1:/P9AEU963A2AYjv4d1V5eVL1CQbEJq6aCNHDDjibzu8=
 github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
@@ -74,6 +84,8 @@ github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7a
 github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/gogo/status v1.1.0/go.mod h1:BFv9nrluPLmrS0EmGVvLaPNmRosr9KapBYd5/hpY1WM=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -115,6 +127,7 @@ github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfV
 github.com/juju/errors v0.0.0-20181118221551-089d3ea4e4d5/go.mod h1:W54LbzXuIE0boCoNJfwqpmkKJ1O4TCTZMetAt6jGk7Q=
 github.com/juju/loggo v0.0.0-20180524022052-584905176618/go.mod h1:vgyd7OREkbtVEN/8IXZe5Ooef3LQePvuBm9UWj6ZL8U=
 github.com/juju/testing v0.0.0-20180920084828-472a3e8b2073/go.mod h1:63prj8cnj0tU0S9OHjGJn+b1h0ZghCndfnbQolrYTwA=
+github.com/jung-kurt/gofpdf v1.0.0/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88/go.mod h1:3w7q1U84EfirKl04SVQ/s7nPm1ZPhiXd34z40TNz36k=
 github.com/kataras/golog v0.0.9/go.mod h1:12HJgwBIZFNGL0EJnMRhmvGA0PQGx8VFwrZtM4CqbAk=
 github.com/kataras/iris/v12 v12.0.1/go.mod h1:udK4vLQKkdDqMGJJVd/msuMtN6hpYJhg/lSzuxjhO+U=
@@ -134,6 +147,10 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/labstack/echo/v4 v4.1.11/go.mod h1:i541M3Fj6f76NZtHSj7TXnyM8n2gaodfvfxNnFqi74g=
 github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL7NoOu+k=
+github.com/llgcode/draw2d v0.0.0-20180825133448-f52c8a71aff0 h1:2vp6ESimuT8pCuZHThVyV0hlfa9oPL06HnGCL9pbUgc=
+github.com/llgcode/draw2d v0.0.0-20180825133448-f52c8a71aff0/go.mod h1:mVa0dA29Db2S4LVqDYLlsePDzRJLDfdhVZiI15uY0FA=
+github.com/llgcode/ps v0.0.0-20150911083025-f1443b32eedb h1:61ndUreYSlWFeCY44JxDDkngVoI7/1MVhEl98Nm0KOk=
+github.com/llgcode/ps v0.0.0-20150911083025-f1443b32eedb/go.mod h1:1l8ky+Ew27CMX29uG+a2hNOKpeNYEQjjtiALiBlFQbY=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
@@ -213,8 +230,11 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20200513190911-00229845015e h1:rMqLP+9XLy+LdbCXHjJHAmTfXCr93W7oruWA6Hq1Alc=
 golang.org/x/exp v0.0.0-20200513190911-00229845015e/go.mod h1:4M0jN8W1tt0AVLNr8HDosyJCDCDuyL9N9+3m7wDWgKw=
+golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8 h1:hVwzHzIUGRjiF7EcUjqNxk3NCfkPxbDKRdnNE1Rpg0U=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=

main.go

@@ -12,8 +12,10 @@ import (
 	"git.fromouter.space/crunchy-rocks/clessy-ng/modules/metafora"
 	"git.fromouter.space/crunchy-rocks/clessy-ng/modules/proverbio"
 	"git.fromouter.space/crunchy-rocks/clessy-ng/modules/remind"
+	"git.fromouter.space/crunchy-rocks/clessy-ng/modules/unsplash"
 	"git.fromouter.space/crunchy-rocks/clessy-ng/utils"
 
+	"git.fromouter.space/crunchy-rocks/emoji"
 	"git.fromouter.space/hamcha/tg"
 	"github.com/cockroachdb/pebble"
 )
@@ -23,6 +25,7 @@ var mods = map[string]modules.Module{
 	"proverbio": &proverbio.Module{},
 	"macro":     &macro.Module{},
 	"remind":    &remind.Module{},
+	"unsplash":  &unsplash.Module{},
 }
 
 func checkErr(err error, message string, args ...interface{}) {
@@ -44,6 +47,15 @@ func main() {
 	name, err := api.GetMe()
 	checkErr(err, "could not retrieve bot info")
 
+	// Load emojis
+	emojis, err := emoji.ScanEmojiDirectory(utils.RequireEnv("CLESSY_EMOJI_PATH"))
+	if err != nil {
+		log.Printf("[x-emoji] Error while loading emojis: %s\n", err.Error())
+		log.Println("[x-emoji] Emoji support will be disabled")
+	} else {
+		log.Printf("[x-emoji] Loaded %d emojis\n", len(emojis))
+	}
+
 	// Initialize your database
 	db, err := pebble.Open(utils.RequireEnv("CLESSY_DB_DIR"), &pebble.Options{})
 	checkErr(err, "could not open database")
@@ -85,9 +97,10 @@ func main() {
 	for modname, mod := range toActivate {
 		log.Printf("Initializing %s", modname)
 		err := mod.Initialize(modules.ModuleOptions{
-			API:  api,
+			API:    api,
-			Name: name.Username,
+			Name:   name.Username,
-			KV:   db,
+			KV:     db,
+			Emojis: emojis,
 		})
 		checkErr(err, "Starting module %s failed with error", modname)
 	}

modules/module.go

@@ -1,14 +1,16 @@
 package modules
 
 import (
+	"git.fromouter.space/crunchy-rocks/emoji"
 	"git.fromouter.space/hamcha/tg"
 	"github.com/cockroachdb/pebble"
 )
 
 type ModuleOptions struct {
-	API  *tg.Telegram
+	API    *tg.Telegram
-	Name string
+	Name   string
-	KV   *pebble.DB
+	KV     *pebble.DB
+	Emojis emoji.Table
 }
 
 type Module interface {

modules/unsplash/mod.go

@@ -0,0 +1,273 @@
+package unsplash
+
+import (
+	"bytes"
+	"encoding/base64"
+	"image"
+	_ "image/gif"
+	"image/jpeg"
+	_ "image/png"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"git.fromouter.space/crunchy-rocks/clessy-ng/modules"
+	"git.fromouter.space/crunchy-rocks/clessy-ng/utils"
+
+	"git.fromouter.space/crunchy-rocks/draw2d"
+	"git.fromouter.space/crunchy-rocks/draw2d/draw2dimg"
+	"git.fromouter.space/crunchy-rocks/emoji"
+	"git.fromouter.space/crunchy-rocks/freetype"
+	"git.fromouter.space/hamcha/tg"
+	"github.com/disintegration/imaging"
+)
+
+var quoteFontData draw2d.FontData
+var pics []string
+
+type Module struct {
+	client *tg.Telegram
+	name   string
+	emojis emoji.Table
+}
+
+func (m *Module) Initialize(options modules.ModuleOptions) error {
+	m.client = options.API
+	m.name = options.Name
+	m.emojis = options.Emojis
+
+	fontfile := utils.RequireEnv("CLESSY_UNSPLASH_FONT")
+	bytes, err := os.ReadFile(fontfile)
+	if err != nil {
+		return err
+	}
+
+	font, err := freetype.ParseFont(bytes)
+	if err != nil {
+		return err
+	}
+
+	quoteFontData = draw2d.FontData{
+		Name:   "gillmt",
+		Family: draw2d.FontFamilySans,
+		Style:  draw2d.FontStyleBold,
+	}
+	draw2d.RegisterFont(quoteFontData, font)
+
+	// Read all the pictures inside a folder and save them for later
+	bgpath := utils.RequireEnv("CLESSY_UNSPLASH_BG_PATH")
+	files, err := ioutil.ReadDir(bgpath)
+	if err != nil {
+		return err
+	}
+
+	for _, file := range files {
+		pics = append(pics, filepath.Join(bgpath, file.Name()))
+	}
+
+	log.Printf("[unsplash] Loaded (%d available backgrounds)", len(pics))
+
+	return nil
+}
+
+func (m *Module) OnUpdate(update tg.APIUpdate) {
+	// Not a message? Ignore
+	if update.Message == nil {
+		return
+	}
+	message := *update.Message
+
+	if utils.IsCommand(message, m.name, "unsplash") {
+		text := ""
+		user := message.User
+
+		if message.ReplyTo != nil {
+			switch {
+			case message.ReplyTo.Text != nil:
+				text = *(message.ReplyTo.Text)
+			case message.ReplyTo.Caption != nil:
+				text = *(message.ReplyTo.Caption)
+			default:
+				m.client.SendTextMessage(tg.ClientTextMessageData{
+					ChatID:  message.Chat.ChatID,
+					Text:    "Non c'e' niente di 'ispiratore' in questo..",
+					ReplyID: &message.MessageID,
+				})
+				return
+			}
+
+			// For forwarded message take the original user
+			if message.FwdUser != nil {
+				user = *message.FwdUser
+			} else {
+				user = message.ReplyTo.User
+			}
+		} else {
+			if strings.Index(*(message.Text), " ") > 0 {
+				text = strings.TrimSpace(strings.SplitN(*(message.Text), " ", 2)[1])
+			}
+		}
+
+		// Cleanup chars
+		text = strings.Map(stripUnreadable, text)
+
+		author := user.FirstName
+		if user.LastName != "" {
+			author = user.FirstName + " " + user.LastName
+		}
+		author += " (" + user.Username + ")"
+
+		if strings.TrimSpace(text) == "" {
+			m.client.SendTextMessage(tg.ClientTextMessageData{
+				ChatID:  message.Chat.ChatID,
+				Text:    "Non c'e' niente di 'ispiratore' in questo..",
+				ReplyID: &message.MessageID,
+			})
+			return
+		}
+
+		file, err := os.Open(pics[rand.Intn(len(pics))])
+		if err != nil {
+			log.Printf("[unsplash] Could not open original image file: %s\n", err.Error())
+			m.client.SendTextMessage(tg.ClientTextMessageData{
+				ChatID:  message.Chat.ChatID,
+				Text:    "<b>ERRORE!</b> @hamcha controlla la console!",
+				ReplyID: &message.MessageID,
+			})
+			return
+		}
+		defer file.Close()
+
+		img, _, err := image.Decode(file)
+		if err != nil {
+			log.Printf("[unsplash] Image decode error: %s\n", err.Error())
+			m.client.SendTextMessage(tg.ClientTextMessageData{
+				ChatID:  message.Chat.ChatID,
+				Text:    "<b>ERRORE!</b> @hamcha controlla la console!",
+				ReplyID: &message.MessageID,
+			})
+			return
+		}
+
+		m.client.SendChatAction(tg.ClientChatActionData{
+			ChatID: message.Chat.ChatID,
+			Action: tg.ActionUploadingPhoto,
+		})
+
+		// Darken image
+		img = imaging.AdjustBrightness(imaging.AdjustGamma(imaging.AdjustSigmoid(img, 0.5, -6.0), 0.8), -20)
+
+		// Create target image
+		bounds := img.Bounds()
+		iwidth := float64(bounds.Size().X)
+		iheight := float64(bounds.Size().Y)
+
+		timg := image.NewRGBA(bounds)
+		gc := draw2dimg.NewGraphicContext(timg)
+		gc.Emojis = m.emojis
+		gc.SetFontData(quoteFontData)
+		gc.DrawImage(img)
+		gc.SetStrokeColor(image.Black)
+		gc.SetFillColor(image.White)
+
+		text = strings.ToUpper(strings.TrimSpace(text))
+		gc.Restore()
+		gc.Save()
+
+		// Detect appropriate font size
+		scale := iheight / iwidth * (iwidth / 10) * 0.8
+		gc.SetFontSize(scale)
+		gc.SetLineWidth(scale / 15)
+
+		// Get NEW bounds
+		left, top, right, bottom := gc.GetStringBounds(text)
+
+		width := right - left
+		texts := []string{text}
+		if width*1.2 > iwidth {
+			// Split text
+			texts = utils.SplitCenter(text)
+
+			// Get longest line
+			longer := float64(0)
+			longid := 0
+			widths := make([]float64, len(texts))
+			for id := range texts {
+				tleft, _, tright, _ := gc.GetStringBounds(texts[id])
+				widths[id] = tright - tleft
+				if width > longer {
+					longer = widths[id]
+					longid = id
+				}
+			}
+
+			// Still too big? Decrease font size again
+			iter := 0
+			for width*1.2 > iwidth && iter < 10 {
+				scale *= (0.9 - 0.05*float64(iter))
+				gc.SetFontSize(scale)
+				left, top, right, bottom = gc.GetStringBounds(texts[longid])
+				width = right - left
+				iter++
+			}
+		}
+
+		texts = append(texts, author)
+		height := bottom - top + 20
+		margin := float64(height / 50)
+		txtheight := (height + margin) * float64(len(texts))
+
+		gc.Save()
+		for id, txt := range texts {
+			gc.Save()
+			left, _, right, _ = gc.GetStringBounds(txt)
+			width = right - left
+
+			x := (iwidth - width) / 2
+			y := (iheight-txtheight)/2 + (height+margin*2)*float64(id+1)
+			if id == len(texts)-1 {
+				gc.SetFontSize(scale * 0.7)
+				left, _, right, _ = gc.GetStringBounds(txt)
+				width = right - left
+				x = (iwidth - width) / 1.5
+				y = (iheight-txtheight)/2 + (height+margin)*float64(id+1) + margin*6
+			}
+
+			gc.Translate(x, y)
+			gc.StrokeString(txt)
+			gc.FillString(txt)
+			gc.Restore()
+		}
+
+		buf := new(bytes.Buffer)
+		err = jpeg.Encode(buf, timg, &(jpeg.Options{Quality: 80}))
+		if err != nil {
+			log.Printf("[unsplash] Image encode error: %s\n", err.Error())
+			m.client.SendTextMessage(tg.ClientTextMessageData{
+				ChatID:  message.Chat.ChatID,
+				Text:    "<b>ERRORE!</b> @hamcha controlla la console!",
+				ReplyID: &message.MessageID,
+			})
+			return
+		}
+		m.client.SendPhoto(tg.ClientPhotoData{
+			ChatID:   message.Chat.ChatID,
+			Bytes:    base64.StdEncoding.EncodeToString(buf.Bytes()),
+			Filename: "quote.jpg",
+			ReplyID:  &message.MessageID,
+		})
+	}
+}
+
+func stripUnreadable(r rune) rune {
+	if r == '\n' || r == '\t' {
+		return ' '
+	}
+	if r < 32 {
+		return -1
+	}
+	return r
+}

run.ps1

@@ -2,5 +2,9 @@
 $env:CLESSY_TOKEN = $args[0]
 $env:CLESSY_WEBHOOK = $args[1] + "/test"
 $env:CLESSY_DB_DIR = "_data/db"
-mkdir -force _data
+$env:CLESSY_EMOJI_PATH = "_data"
+$env:CLESSY_UNSPLASH_FONT = "_data/gill.ttf"
+$env:CLESSY_UNSPLASH_BG_PATH = "_data/pics"
+$env:CLESSY_MEME_FONT = "_data/impact.ttf"
+mkdir -force _data/pics
 go run .

run.sh

@@ -2,5 +2,8 @@
 export CLESSY_TOKEN=$1
 export CLESSY_WEBHOOK=$2/test
 export CLESSY_DB_DIR=_data/db
-mkdir -p _data
+export CLESSY_EMOJI_PATH=_data
+export CLESSY_UNSPLASH_FONT=_data/gill.ttf
+export CLESSY_MEME_FONT=_data/impact.ttf
+mkdir -p _data/pics
 go run .

utils/text.go

@@ -0,0 +1,32 @@
+package utils
+
+import "strings"
+
+func abs(i int) int {
+	if i < 0 {
+		return -i
+	}
+	return i
+}
+
+func SplitCenter(text string) []string {
+	centerIndex := int(len(text) / 2)
+	whitespaceFrontIndex := strings.IndexRune(text[centerIndex:], ' ')
+	whitespaceBackIndex := strings.LastIndex(text[:centerIndex], " ")
+	frontIndex := centerIndex + whitespaceFrontIndex
+	frontDiff := 9999
+	backDiff := 9999
+	if whitespaceFrontIndex < 1 && whitespaceBackIndex < 1 {
+		return []string{text}
+	}
+	if whitespaceFrontIndex >= 0 {
+		frontDiff = len(text[:frontIndex]) - len(text[frontIndex:])
+	}
+	if whitespaceBackIndex >= 0 {
+		backDiff = len(text[:whitespaceBackIndex]) - len(text[whitespaceBackIndex:])
+	}
+	if abs(frontDiff) < abs(backDiff) {
+		return []string{strings.TrimSpace(text[:frontIndex]), strings.TrimSpace(text[frontIndex:])}
+	}
+	return []string{strings.TrimSpace(text[:whitespaceBackIndex]), strings.TrimSpace(text[whitespaceBackIndex:])}
+}