Splat handler in their own files, added pagination

internal/articles/add.go

@@ -0,0 +1,39 @@
+package articles
+
+import (
+	"fmt"
+
+	"github.com/Floriansylvain/GohCMS/internal/api"
+	"github.com/Floriansylvain/GohCMS/internal/database"
+	"github.com/gin-gonic/gin"
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+func Add(c *gin.Context) {
+	var article Article
+	article.TitleID = c.Params.ByName("id")
+	if c.BindJSON(&article) != nil {
+		api.SendBadRequest(c, "Could not correctly parse the article.")
+		return
+	}
+
+	document, err := bson.Marshal(article)
+	if err != nil {
+		api.SendBadRequest(c, "Could not correctly marshal the article.")
+		return
+	}
+
+	documents, _ := database.GetDocuments(articlesLocation, map[string]any{})
+	if IsArticleIdAlreadyUsed(article.TitleID, documents) {
+		api.SendBadRequest(c, fmt.Sprintf("Article ID '%v' already used.", article.TitleID))
+		return
+	}
+
+	err = database.PushDocument(articlesLocation, document)
+	if err != nil {
+		api.SendBadRequest(c, fmt.Sprintf(`Could not insert document(s) into DB: %v`, err.Error()))
+		return
+	}
+
+	api.SendOk(c, "Article successfully added!")
+}