package neo4jAPI

import (
	"context"
	"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)

func PostToTagRelationship(ctx context.Context, driver neo4j.DriverWithContext, e621PostID int64, e621Tag string) error {
	query := `
		MATCH (p:e621Post {e621PostID: $e621PostID})
		MATCH (t:e621Tag {e621Tag: $e621Tag})
		MERGE (p)-[:HAS_TAG]->(t)
		`
	params := map[string]interface{}{
		"e621PostID": e621PostID,
		"e621Tag":    e621Tag,
	}

	_, err := neo4j.ExecuteQuery(ctx, driver, query, params, neo4j.EagerResultTransformer)
	if err != nil {
		return err
	}

	return nil
}

func PostToSourceRelationship(ctx context.Context, driver neo4j.DriverWithContext, e621PostID int64, sourceURL string) error {
	query := `
		MATCH (p:e621Post {e621PostID: $e621PostID})
		MATCH (s:Source {URL: $sourceURL})
		MERGE (p)-[:HAS_SOURCE]->(s)
		`
	params := map[string]interface{}{
		"e621PostID": e621PostID,
		"sourceURL":  sourceURL,
	}

	_, err := neo4j.ExecuteQuery(ctx, driver, query, params, neo4j.EagerResultTransformer)
	if err != nil {
		return err
	}

	return nil
}

func UserToPostRelationship(ctx context.Context, driver neo4j.DriverWithContext, e621PostID int64, e621UserID int64) error {
	query := `
		MATCH (p:e621Post {e621PostID: $e621PostID})
		MATCH (u:e621User {e621ID: $e621ID})
		MERGE (u)-[:IS_FAVORITE]->(p)
		`
	params := map[string]interface{}{
		"e621PostID": e621PostID,
		"e621ID":     e621UserID,
	}

	_, err := neo4j.ExecuteQuery(ctx, driver, query, params, neo4j.EagerResultTransformer)
	if err != nil {
		return err
	}

	return nil
}