//! Demonstrate custom metadata (x-amz-meta-*) with post3.
//!
//! Prerequisites: post3-server running on localhost:9000
//!   mise run up && mise run dev
//!
//! Run:
//!   cargo run -p post3-sdk --example metadata

use post3_sdk::Post3Client;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let endpoint = std::env::var("POST3_ENDPOINT")
        .unwrap_or_else(|_| "http://localhost:9000".to_string());
    let client = Post3Client::new(&endpoint);

    client.create_bucket("meta-bucket").await?;

    // Use the inner aws-sdk-s3 client to set custom metadata
    let inner = client.inner();
    println!("Putting object with custom metadata...");
    inner
        .put_object()
        .bucket("meta-bucket")
        .key("report.pdf")
        .body(Vec::from(&b"fake pdf content"[..]).into())
        .content_type("application/pdf")
        .metadata("author", "alice")
        .metadata("department", "engineering")
        .metadata("version", "2")
        .send()
        .await?;

    // Retrieve metadata via head_object
    let head = inner
        .head_object()
        .bucket("meta-bucket")
        .key("report.pdf")
        .send()
        .await?;

    println!("Content-Type: {:?}", head.content_type());
    println!("Content-Length: {:?}", head.content_length());
    println!("ETag: {:?}", head.e_tag());
    if let Some(metadata) = head.metadata() {
        println!("Custom metadata:");
        for (k, v) in metadata {
            println!("  x-amz-meta-{}: {}", k, v);
        }
    }

    // Retrieve the full object with metadata
    let resp = inner
        .get_object()
        .bucket("meta-bucket")
        .key("report.pdf")
        .send()
        .await?;

    println!("\nGet object response:");
    println!("  Content-Type: {:?}", resp.content_type());
    if let Some(metadata) = resp.metadata() {
        println!("  Metadata:");
        for (k, v) in metadata {
            println!("    x-amz-meta-{}: {}", k, v);
        }
    }

    let body = resp.body.collect().await?.into_bytes();
    println!("  Body: {}", String::from_utf8_lossy(&body));

    // Cleanup
    client.delete_object("meta-bucket", "report.pdf").await?;
    client.delete_bucket("meta-bucket").await?;
    println!("\nDone!");

    Ok(())
}