//! Example: Download asset thumbnails
//!
//! 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 image::GenericImageView;
use immich_sdk::Client;
use immich_sdk::models::AssetMediaSize;
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 thumbnail (small size, default)
    println!("Downloading thumbnail...");
    let response = client
        .assets()
        .thumbnail(asset_id)
        .size(AssetMediaSize::Thumbnail)
        .execute()
        .await?;

    println!("Content type: {}", response.content_type());
    println!("Extension: {:?}", response.extension());
    println!("Data size: {} bytes", response.data().len());

    // Save raw bytes
    let ext = response.extension().unwrap_or("jpg");
    let output_path = format!("/path/to/output/thumbnail.{}", ext);
    fs::write(&output_path, response.data())?;
    println!("Saved thumbnail to {}", output_path);

    // Decode the image
    println!("\nDecoding image...");
    let image = response.decode()?;
    println!("Image dimensions: {}x{}", image.width(), image.height());
    println!("Image color type: {:?}", image.color());

    // Example: Get a specific pixel
    let pixel = image.get_pixel(0, 0);
    println!("Top-left pixel: {:?}", pixel);

    // Example: Resize image (requires image crate features)
    // let resized = image.resize(100, 100, image::imageops::FilterType::Lanczos3);
    // println!("Resized to: {}x{}", resized.width(), resized.height());

    Ok(())
}