Merge pull request 'Added another function to get all user favorites with pagination' (#3) from more-querys into main

Reviewed-on: #3

.gitignore

@@ -192,3 +192,4 @@ $RECYCLE.BIN/
 
 
 .env
+main.go

internal/user.go

@@ -3,6 +3,7 @@ package internal
 import (
 	"context"
 	"fmt"
+
 	"git.dragse.it/anthrove/otter-space-sdk/internal/utils"
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 	"github.com/neo4j/neo4j-go-driver/v5/neo4j"
@@ -315,3 +316,88 @@ func GetAllAnthroveUserIDs(ctx context.Context, driver neo4j.DriverWithContext)
 	return anthroveUsers, nil
 
 }
+
+func GetUserFavoriteNodeWithPagination(ctx context.Context, driver neo4j.DriverWithContext, anthroveUserID models.AnthroveUserID, skip int, limit int) (*models.FavoriteList, error) {
+	var err error
+	var favoritePosts []models.FavoritePost
+
+	query := `
+		CALL { 
+		  MATCH (user:User{user_id: $anthrove_user_id})-[r:FAV]->(p:AnthrovePost) 
+		  RETURN p.post_id AS post_id 
+		  ORDER BY id(p) ASC 
+		SKIP $skip
+		LIMIT $limit
+		} 
+		WITH collect(post_id) AS faves 
+		MATCH (a:AnthrovePost)<-[r:REFERENCE]-(s:Source) 
+		WHERE a.post_id in faves 
+		RETURN a AS anthrovePost, r AS postRelation, s AS Source
+	`
+	params := map[string]any{
+		"anthrove_user_id": anthroveUserID,
+		"limit":            limit,
+		"skip":             skip,
+	}
+
+	result, err := neo4j.ExecuteQuery(ctx, driver, query, params, neo4j.EagerResultTransformer)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(result.Records) == 0 {
+		return nil, nil
+	}
+
+	for i := range result.Records {
+		record := result.Records[i]
+
+		anthrovePost, _, err := neo4j.GetRecordValue[neo4j.Node](record, "anthrovePost")
+		if err != nil {
+			return nil, err
+		}
+
+		postRelation, _, err := neo4j.GetRecordValue[neo4j.Relationship](record, "postRelation")
+		if err != nil {
+			return nil, err
+		}
+
+		source, _, err := neo4j.GetRecordValue[neo4j.Node](record, "Source")
+		if err != nil {
+			return nil, err
+		}
+
+		if len(favoritePosts) != 0 && favoritePosts[len(favoritePosts)-1].AnthrovePost.PostID == models.AnthrovePostID(anthrovePost.Props["post_id"].(string)) {
+			favoritePosts[len(favoritePosts)-1].Relations = append(favoritePosts[len(favoritePosts)-1].Relations, models.FavoriteRelations{
+				SourcesID: source.Props["display_name"].(string),
+				Relations: models.AnthrovePostRelationship{
+					PostID: postRelation.Props["source_post_id"].(string),
+					Url:    postRelation.Props["url"].(string),
+				},
+			})
+		} else {
+			favoritePosts = append(favoritePosts, models.FavoritePost{
+				AnthrovePost: models.AnthrovePost{
+					PostID: models.AnthrovePostID(anthrovePost.Props["post_id"].(string)),
+					Rating: models.AnthroveRating(anthrovePost.Props["rating"].(string)),
+				},
+				Relations: []models.FavoriteRelations{{
+					SourcesID: source.Props["display_name"].(string),
+					Relations: models.AnthrovePostRelationship{
+						PostID: postRelation.Props["source_post_id"].(string),
+						Url:    postRelation.Props["url"].(string),
+					},
+				}},
+			})
+
+		}
+
+	}
+
+	log.WithFields(log.Fields{
+		"anthrove_user_fav_count": len(favoritePosts),
+	}).Trace("graph: got al anthrove user favorites")
+
+	return &models.FavoriteList{Posts: favoritePosts}, nil
+
+}

pkg/graph/graph.go

@@ -27,6 +27,7 @@ package graph
 
 import (
 	"context"
+
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 )
 
@@ -86,7 +87,7 @@ type OtterSpace interface {
 	// It returns a map of source domains to user-source relationships, and an error if the operation fails.
 	GetUserSourceLinks(ctx context.Context, anthroveUserID models.AnthroveUserID) (map[string]models.AnthroveUserRelationship, error)
 
-	// GetUserSourceLinks retrieves the links between a user and sources in the OtterSpace graph.
+	// GetSpecifiedUserSourceLink GetUserSourceLinks retrieves the links between a user and a specific source in the OtterSpace graph.
 	// It returns a map of source domains to user-source relationships, and an error if the operation fails.
 	GetSpecifiedUserSourceLink(ctx context.Context, anthroveUserID models.AnthroveUserID, sourceDisplayName string) (map[string]models.AnthroveUserRelationship, error)
 
@@ -97,4 +98,7 @@ type OtterSpace interface {
 	// GetAllAnthroveUserIDs retrieves all user IDs from the OtterSpace graph.
 	// It returns a slice of user IDs and an error if the operation fails.
 	GetAllAnthroveUserIDs(ctx context.Context) ([]models.AnthroveUserID, error)
+
+	// GetUserFavoritePostsWithPagination gets all user favorites with relation and sources for the given user
+	GetUserFavoritePostsWithPagination(ctx context.Context, anthroveUserID models.AnthroveUserID, skip int, limit int) (*models.FavoriteList, error)
 }

pkg/graph/impl.go

@@ -96,6 +96,10 @@ func (g *graphConnection) GetAllAnthroveUserIDs(ctx context.Context) ([]models.A
 	return internal.GetAllAnthroveUserIDs(ctx, g.driver)
 }
 
+func (g *graphConnection) GetUserFavoritePostsWithPagination(ctx context.Context, anthroveUserID models.AnthroveUserID, skip int, limit int) (*models.FavoriteList, error) {
+	return internal.GetUserFavoriteNodeWithPagination(ctx, g.driver, anthroveUserID, skip, limit)
+}
+
 func logger(graphDebug bool) func(config *config.Config) {
 	return func(config *config.Config) {
 		config.Log = internal.NewGraphLogger(graphDebug)

pkg/models/api.go

@@ -0,0 +1,15 @@
+package models
+
+type FavoriteRelations struct {
+	SourcesID string                   `json:"sources_id"`
+	Relations AnthrovePostRelationship `json:"relations"`
+}
+
+type FavoritePost struct {
+	AnthrovePost AnthrovePost        `json:"anthrove_post"`
+	Relations    []FavoriteRelations `json:"relations"`
+}
+
+type FavoriteList struct {
+	Posts []FavoritePost `json:"posts,omitempty"`
+}