//! Example: Download an asset from Immich
//!
//! This example uses environment variables for configuration:
//! - IMMICH_URL: The Immich server URL (defaults to http://localhost:2283)
//! - IMMICH_API_KEY: Your API key (required)

use immich_sdk::Client;
use std::fs;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Configure the client from environment variables
    let url = std::env::var("IMMICH_URL").unwrap_or_else(|_| "http://localhost:2283".to_string());
    let api_key =
        std::env::var("IMMICH_API_KEY").expect("IMMICH_API_KEY environment variable not set");

    // Create a client
    let client = Client::from_url(&url)?.with_api_key(api_key);

    // Get first asset from the server
    let assets = client.assets().list().execute().await?;
    if assets.is_empty() {
        println!("No assets found. Run upload_photos example first.");
        return Ok(());
    }
    let asset_id = assets[0].id;

    // Download the asset
    println!("Downloading asset...");
    let bytes = client.assets().download(asset_id).execute().await?;

    // Save to file
    let output_path = "/path/to/output/photo.jpg";
    fs::write(output_path, &bytes)?;
    println!("Saved {} bytes to {}", bytes.len(), output_path);

    // Or download the edited version if available
    let edited_bytes = client
        .assets()
        .download(asset_id)
        .edited()
        .execute()
        .await?;

    let edited_path = "/path/to/output/photo_edited.jpg";
    fs::write(edited_path, &edited_bytes)?;
    println!(
        "Saved edited version {} bytes to {}",
        edited_bytes.len(),
        edited_path
    );

    Ok(())
}