reactions: support custom emojis

Signed-off-by: Sumner Evans <sumner.evans@automattic.com>

pkg/connector/config.go

@@ -0,0 +1,47 @@
+package connector
+
+import (
+	_ "embed"
+	"fmt"
+
+	up "go.mau.fi/util/configupgrade"
+	"maunium.net/go/mautrix/bridgev2"
+
+	"go.mau.fi/mautrix-telegram/pkg/connector/media"
+)
+
+var _ bridgev2.ConfigValidatingNetwork = (*TelegramConnector)(nil)
+
+type TelegramConfig struct {
+	AppID   int    `yaml:"app_id"`
+	AppHash string `yaml:"app_hash"`
+
+	AnimatedSticker media.AnimatedStickerConfig `yaml:"animated_sticker"`
+}
+
+//go:embed example-config.yaml
+var ExampleConfig string
+
+func upgradeConfig(helper up.Helper) {
+	helper.Copy(up.Int, "app_id")
+	helper.Copy(up.Str, "app_hash")
+	helper.Copy(up.Str, "animated_sticker.target")
+	helper.Copy(up.Bool, "animated_sticker.convert_from_webm")
+	helper.Copy(up.Int, "animated_sticker.args.width")
+	helper.Copy(up.Int, "animated_sticker.args.height")
+	helper.Copy(up.Int, "animated_sticker.args.fps")
+}
+
+func (tg *TelegramConnector) GetConfig() (example string, data any, upgrader up.Upgrader) {
+	return ExampleConfig, tg.Config, up.SimpleUpgrader(upgradeConfig)
+}
+
+func (tg *TelegramConnector) ValidateConfig() error {
+	if tg.Config.AppID == 0 {
+		return fmt.Errorf("app_id is required")
+	}
+	if tg.Config.AppHash == "" {
+		return fmt.Errorf("app_hash is required")
+	}
+	return nil
+}