memvid-rs 1.2.0

#!/usr/bin/env rust
//! Simplified interactive chat example
//!
//! This example demonstrates how to use memvid-rs for:
//! 1. Quick one-off queries
//! 2. Interactive chat sessions
//!
//! Run with: cargo run --example simple_chat

use memvid_rs::{Result, chat_with_memory, quick_chat};
use std::path::Path;

#[tokio::main]
async fn main() -> Result<()> {
    env_logger::init();

    println!("Memvid Simple Chat Examples");
    println!("{}", "=".repeat(50));

    let video_file = "data/memory.mp4";
    let index_file = "data/memory_index.db";

    // Check if memory exists
    if !Path::new(video_file).exists() {
        println!(
            "\nError: Run 'cargo run -- encode data/bitcoin.pdf -o {} -i {}' first!",
            video_file, index_file
        );
        return Ok(());
    }

    // Check for API key
    let api_key = std::env::var("OPENAI_API_KEY").unwrap_or_else(|_| {
        println!("\nNote: Set OPENAI_API_KEY environment variable for full LLM responses.");
        println!("Without it, you'll see context-only responses.\n");
        String::new()
    });

    println!("\n1. Quick one-off query:");
    println!("{}", "-".repeat(30));
    let response = quick_chat(
        video_file,
        index_file,
        "How many qubits did the quantum computer achieve?",
        &api_key,
    )
    .await?;
    println!("Response: {}", response);

    println!("\n\n2. Interactive chat session:");
    println!("{}", "-".repeat(30));
    println!("Starting interactive mode...\n");

    // Interactive chat session
    chat_with_memory(video_file, index_file, &api_key).await?;

    Ok(())
}