feat(post): added deletion of posts & added some documentation for the add function as well

Signed-off-by: SoXX <soxx@fenpa.ws>

internal/post.go

@@ -8,6 +8,7 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
+// CreateAnthrovePostNode will always create a new node, it does not check if the node with the corresponding post_id and rating exists.
 func CreateAnthrovePostNode(ctx context.Context, driver neo4j.DriverWithContext, anthrovePost *models.AnthrovePost) error {
 	query := `
 		CREATE (newPostNode:AnthrovePost {post_id: $anthrove_post_id, rating: $anthrove_rating}) 
@@ -31,6 +32,29 @@ func CreateAnthrovePostNode(ctx context.Context, driver neo4j.DriverWithContext,
 	return nil
 }
 
+// DeleteAnthrovePostNode will always delete a node, it only needs the anthrovePost.PostID filled out.
+func DeleteAnthrovePostNode(ctx context.Context, driver neo4j.DriverWithContext, anthrovePost *models.AnthrovePost) error {
+	query := `
+		MATCH (anthrovePost:AnthrovePost {post_id: $anthrove_post_id)
+		DELETE anthrovePost
+		`
+
+	params := map[string]any{
+		"anthrove_post_id": anthrovePost.PostID,
+	}
+
+	_, err := neo4j.ExecuteQuery(ctx, driver, query, params, neo4j.EagerResultTransformer)
+	if err != nil {
+		return err
+	}
+
+	log.WithFields(log.Fields{
+		"anthrove_post_id": anthrovePost.PostID,
+	}).Trace("graph: deleted anthrove post")
+
+	return nil
+}
+
 func CheckIfAnthrovePostNodeExistsByAnthroveID(ctx context.Context, driver neo4j.DriverWithContext, anthrovePost *models.AnthrovePost) (*models.AnthrovePost, bool, error) {
 	query := `
 		OPTIONAL MATCH (postNode:AnthrovePost {post_id: $anthrove_post_id})

pkg/graph/post.go

@@ -2,12 +2,13 @@ package graph
 
 import (
 	"context"
+
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 )
 
 type Post interface {
 	CreatePost(ctx context.Context, anthrovePost *models.AnthrovePost) error
-	DeletePost() error
+	DeletePost(ctx context.Context, anthrovePost *models.AnthrovePost) error
 
 	// LinkPostWithSource establishes a link between a post and a source in the OtterSpace graph.
 	// It returns an error if the operation fails.

pkg/graph/post_impl.go

@@ -2,17 +2,20 @@ package graph
 
 import (
 	"context"
+
 	"git.dragse.it/anthrove/otter-space-sdk/internal"
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 )
 
+// CreatePost will always create a new node, it does not check if the node with the corresponding post_id and rating exists.
 func (g *graphConnection) CreatePost(ctx context.Context, anthrovePost *models.AnthrovePost) error {
 	return internal.CreateAnthrovePostNode(ctx, g.driver, anthrovePost)
 }
 
-func (g *graphConnection) DeletePost() error {
-	//TODO implement me
-	panic("implement me")
+// DeletePost will always delete a node, it only needs the anthrovePost.PostID filled out.
+func (g *graphConnection) DeletePost(ctx context.Context, anthrovePost *models.AnthrovePost) error {
+	return internal.DeleteAnthrovePostNode(ctx, g.driver, anthrovePost)
+
 }
 
 func (g *graphConnection) CheckPostNodeExistsByAnthroveID(ctx context.Context, anthrovePost *models.AnthrovePost) (*models.AnthrovePost, bool, error) {