✨ Be able to lookup sticker via thier pack prefix + alias

pkg/internal/server/api/index.go

@@ -23,6 +23,7 @@ func MapAPIs(app *fiber.App, baseURL string) {
 		api.Post("/attachments/multipart", createAttachmentMultipartPlaceholder)
 		api.Post("/attachments/multipart/:file/:chunk", uploadAttachmentMultipart)
 
+		api.Get("/stickers/lookup/:alias", lookupSticker)
 		api.Get("/stickers/manifest", listStickerManifest)
 		api.Get("/stickers/packs", listStickerPacks)
 		api.Post("/stickers/packs", createStickerPack)

pkg/internal/server/api/stickers_api.go

@@ -12,6 +12,15 @@ import (
 	"github.com/gofiber/fiber/v2"
 )
 
+func lookupSticker(c *fiber.Ctx) error {
+	alias := c.Params("alias")
+	if sticker, err := services.GetStickerWithAlias(alias); err != nil {
+		return fiber.NewError(fiber.StatusNotFound, err.Error())
+	} else {
+		return c.JSON(sticker)
+	}
+}
+
 func listStickers(c *fiber.Ctx) error {
 	take := c.QueryInt("take", 0)
 	offset := c.QueryInt("offset", 0)

pkg/internal/services/stickers.go

@@ -1,10 +1,24 @@
 package services
 
 import (
+	"fmt"
+
 	"git.solsynth.dev/hydrogen/paperclip/pkg/internal/database"
 	"git.solsynth.dev/hydrogen/paperclip/pkg/internal/models"
+	"github.com/spf13/viper"
 )
 
+func GetStickerWithAlias(alias string) (models.Sticker, error) {
+	var sticker models.Sticker
+	prefix := viper.GetString("database.prefix")
+	if err := database.C.
+		Joins(fmt.Sprintf("LEFT JOIN %ssticker_packs pk ON pack_id = pk.id", prefix)).
+		Where("CONCAT(pk.prefix, alias) = ?", alias).First(&sticker).Error; err != nil {
+		return sticker, err
+	}
+	return sticker, nil
+}
+
 func GetSticker(id uint) (models.Sticker, error) {
 	var sticker models.Sticker
 	if err := database.C.Where("id = ?", id).Preload("Attachment").First(&sticker).Error; err != nil {