Add web templates and handlers for home, embed card, and admin pages

internal/web/handlers/embedCard.go

@@ -0,0 +1,27 @@
+package handlers
+
+import (
+	"CatsOfMastodonBotGo/internal/services"
+
+	"github.com/gin-gonic/gin"
+)
+
+type EmbedCardHandler struct {
+	PostService services.PostService
+}
+
+var EmbedCardHandlerInstance *EmbedCardHandler
+
+func InitEmbedCardHandler() {
+	EmbedCardHandlerInstance = &EmbedCardHandler{
+		PostService: *services.PostServiceInstance,
+	}
+}
+
+func (ps *EmbedCardHandler) GetEmbedCard(c *gin.Context) {
+	post := ps.PostService.GetRandomPost()
+	c.HTML(200, "home/embed.html", gin.H{
+		"postUrl":  post.Url,
+		"imageUrl": post.Attachments[0].PreviewUrl,
+	})
+}