streamweave 0.10.1

//! Tests for ObjectKeysNode

use crate::node::{InputStreams, Node};
use crate::nodes::object::object_keys_node::ObjectKeysNode;
use std::any::Any;
use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::mpsc;
use tokio_stream::{StreamExt, wrappers::ReceiverStream};

type AnySender = mpsc::Sender<Arc<dyn Any + Send + Sync>>;

/// Helper to create input streams from channels
fn create_input_streams() -> (AnySender, AnySender, InputStreams) {
  let (config_tx, config_rx) = mpsc::channel(10);
  let (in_tx, in_rx) = mpsc::channel(10);

  let mut inputs = HashMap::new();
  inputs.insert(
    "configuration".to_string(),
    Box::pin(ReceiverStream::new(config_rx)) as crate::node::InputStream,
  );
  inputs.insert(
    "in".to_string(),
    Box::pin(ReceiverStream::new(in_rx)) as crate::node::InputStream,
  );

  (config_tx, in_tx, inputs)
}

#[tokio::test]
async fn test_object_keys_node_creation() {
  let node = ObjectKeysNode::new("test_keys".to_string());
  assert_eq!(node.name(), "test_keys");
  assert!(node.has_input_port("configuration"));
  assert!(node.has_input_port("in"));
  assert!(node.has_output_port("out"));
  assert!(node.has_output_port("error"));
}

#[tokio::test]
async fn test_object_keys_basic() {
  let node = ObjectKeysNode::new("test_keys".to_string());

  let (_config_tx, in_tx, inputs) = create_input_streams();
  let outputs_future = node.execute(inputs);
  let mut outputs = outputs_future.await.unwrap();

  // Send values: {"name": "John", "age": 30} → ["name", "age"]
  let mut map: HashMap<String, Arc<dyn Any + Send + Sync>> = HashMap::new();
  map.insert(
    "name".to_string(),
    Arc::new("John".to_string()) as Arc<dyn Any + Send + Sync>,
  );
  map.insert(
    "age".to_string(),
    Arc::new(30i32) as Arc<dyn Any + Send + Sync>,
  );
  let _ = in_tx
    .send(Arc::new(map) as Arc<dyn Any + Send + Sync>)
    .await;

  let out_stream = outputs.remove("out").unwrap();
  let mut results = Vec::new();
  let mut stream = out_stream;
  let timeout = tokio::time::sleep(tokio::time::Duration::from_millis(200));
  tokio::pin!(timeout);

  loop {
    tokio::select! {
      result = stream.next() => {
        if let Some(item) = result {
          if let Ok(arc_vec) = item.downcast::<Vec<Arc<dyn Any + Send + Sync>>>() {
            results.push(arc_vec.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

  assert_eq!(results.len(), 1);
  assert_eq!(results[0].len(), 2);
  // Verify keys are present (order may vary)
  let keys: Vec<String> = results[0]
    .iter()
    .map(|k| {
      k.clone()
        .downcast::<String>()
        .map(|s| (*s).clone())
        .unwrap()
    })
    .collect();
  assert!(keys.contains(&"name".to_string()));
  assert!(keys.contains(&"age".to_string()));
}

#[tokio::test]
async fn test_object_keys_empty() {
  let node = ObjectKeysNode::new("test_keys".to_string());

  let (_config_tx, in_tx, inputs) = create_input_streams();
  let outputs_future = node.execute(inputs);
  let mut outputs = outputs_future.await.unwrap();

  // Send values: {} → []
  let map: HashMap<String, Arc<dyn Any + Send + Sync>> = HashMap::new();
  let _ = in_tx
    .send(Arc::new(map) as Arc<dyn Any + Send + Sync>)
    .await;

  let out_stream = outputs.remove("out").unwrap();
  let mut results = Vec::new();
  let mut stream = out_stream;
  let timeout = tokio::time::sleep(tokio::time::Duration::from_millis(200));
  tokio::pin!(timeout);

  loop {
    tokio::select! {
      result = stream.next() => {
        if let Some(item) = result {
          if let Ok(arc_vec) = item.downcast::<Vec<Arc<dyn Any + Send + Sync>>>() {
            results.push(arc_vec.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

  assert_eq!(results.len(), 1);
  assert_eq!(results[0].len(), 0);
}

#[tokio::test]
async fn test_object_keys_non_object_input() {
  let node = ObjectKeysNode::new("test_keys".to_string());

  let (_config_tx, in_tx, inputs) = create_input_streams();
  let outputs_future = node.execute(inputs);
  let mut outputs = outputs_future.await.unwrap();

  // Send non-object input
  let _ = in_tx
    .send(Arc::new(42i32) as Arc<dyn Any + Send + Sync>)
    .await;

  let error_stream = outputs.remove("error").unwrap();
  let mut errors = Vec::new();
  let mut stream = error_stream;
  let timeout = tokio::time::sleep(tokio::time::Duration::from_millis(200));
  tokio::pin!(timeout);

  loop {
    tokio::select! {
      result = stream.next() => {
        if let Some(item) = result {
          if let Ok(arc_str) = item.downcast::<String>() {
            errors.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

  assert_eq!(errors.len(), 1);
  assert!(errors[0].contains("input must be HashMap"));
}