//! Basic Graph Operations Example
//!
//! This example demonstrates fundamental graph database operations:
//! - Creating nodes with labels and properties
//! - Creating relationships between nodes
//! - Querying nodes and relationships
//! - Updating and deleting graph elements

fn main() {
    println!("=== RuVector Graph - Basic Operations ===\n");

    // TODO: Once the graph API is exposed in ruvector-graph, implement:

    println!("1. Creating Graph Database");
    // let db = GraphDatabase::open("./data/basic_graph.db")?;

    println!("2. Creating Nodes");
    // Create person nodes
    // let alice = db.create_node()
    //     .label("Person")
    //     .property("name", "Alice")
    //     .property("age", 30)
    //     .execute()?;

    // let bob = db.create_node()
    //     .label("Person")
    //     .property("name", "Bob")
    //     .property("age", 35)
    //     .execute()?;

    println!("   ✓ Created nodes: Alice, Bob");

    println!("\n3. Creating Relationships");
    // Create friendship relationship
    // let friendship = db.create_relationship()
    //     .from(alice)
    //     .to(bob)
    //     .type("FRIENDS_WITH")
    //     .property("since", 2020)
    //     .execute()?;

    println!("   ✓ Created relationship: Alice -[FRIENDS_WITH]-> Bob");

    println!("\n4. Querying Nodes");
    // Find all Person nodes
    // let people = db.query()
    //     .match_pattern("(p:Person)")
    //     .return_("p")
    //     .execute()?;

    // for person in people {
    //     println!("   Found: {:?}", person);
    // }

    println!("\n5. Traversing Relationships");
    // Find Alice's friends
    // let friends = db.query()
    //     .match_pattern("(a:Person {name: 'Alice'})-[:FRIENDS_WITH]->(friend)")
    //     .return_("friend")
    //     .execute()?;

    // println!("   Alice's friends: {:?}", friends);

    println!("\n6. Updating Properties");
    // Update Alice's age
    // db.update_node(alice)
    //     .property("age", 31)
    //     .execute()?;

    println!("   ✓ Updated Alice's age");

    println!("\n7. Deleting Elements");
    // Delete a relationship
    // db.delete_relationship(friendship)?;

    println!("   ✓ Deleted friendship relationship");

    println!("\n8. Statistics");
    // let stats = db.stats()?;
    // println!("   Total nodes: {}", stats.node_count);
    // println!("   Total relationships: {}", stats.relationship_count);
    // println!("   Node labels: {:?}", stats.labels);
    // println!("   Relationship types: {:?}", stats.relationship_types);

    println!("\n=== Example Complete ===");
    println!("\nNote: This is a template. Actual implementation pending graph API exposure.");
}