streamweave 0.10.1

//! Tests for StringReplaceNode

use crate::node::{InputStreams, Node};
use crate::nodes::string::StringReplaceNode;
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, AnySender, AnySender, InputStreams) {
  let (config_tx, config_rx) = mpsc::channel(10);
  let (in_tx, in_rx) = mpsc::channel(10);
  let (pattern_tx, pattern_rx) = mpsc::channel(10);
  let (replacement_tx, replacement_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,
  );
  inputs.insert(
    "pattern".to_string(),
    Box::pin(ReceiverStream::new(pattern_rx)) as crate::node::InputStream,
  );
  inputs.insert(
    "replacement".to_string(),
    Box::pin(ReceiverStream::new(replacement_rx)) as crate::node::InputStream,
  );

  (config_tx, in_tx, pattern_tx, replacement_tx, inputs)
}

#[tokio::test]
async fn test_string_replace_node_creation() {
  let node = StringReplaceNode::new("test_replace".to_string());
  assert_eq!(node.name(), "test_replace");
  assert!(node.has_input_port("configuration"));
  assert!(node.has_input_port("in"));
  assert!(node.has_input_port("pattern"));
  assert!(node.has_input_port("replacement"));
  assert!(node.has_output_port("out"));
  assert!(node.has_output_port("error"));
}

#[tokio::test]
async fn test_string_replace_basic() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send values: "Hello World" replace "World" with "Rust" = "Hello Rust"
  let _ = in_tx
    .send(Arc::new("Hello World".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("World".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("Rust".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;

  // Collect results
  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_str) = item.downcast::<String>() {
            results.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

  assert_eq!(results.len(), 1);
  assert_eq!(*results[0], "Hello Rust");
}

#[tokio::test]
async fn test_string_replace_multiple_occurrences() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send values: "foo bar foo baz" replace "foo" with "qux" = "qux bar qux baz"
  let _ = in_tx
    .send(Arc::new("foo bar foo baz".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("foo".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("qux".to_string()) 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_str) = item.downcast::<String>() {
            results.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

  assert_eq!(results.len(), 1);
  assert_eq!(*results[0], "qux bar qux baz");
}

#[tokio::test]
async fn test_string_replace_no_match() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send values: "Hello" replace "xyz" with "abc" = "Hello" (no change)
  let _ = in_tx
    .send(Arc::new("Hello".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("xyz".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("abc".to_string()) 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_str) = item.downcast::<String>() {
            results.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

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

#[tokio::test]
async fn test_string_replace_empty_pattern() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send values: "Hello" replace "" with "X" = "XHXeXlXlXoX" (inserts replacement between each char)
  let _ = in_tx
    .send(Arc::new("Hello".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("X".to_string()) 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_str) = item.downcast::<String>() {
            results.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

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

#[tokio::test]
async fn test_string_replace_empty_replacement() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send values: "Hello World" replace " " with "" = "HelloWorld" (removes spaces)
  let _ = in_tx
    .send(Arc::new("Hello World".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new(" ".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("".to_string()) 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_str) = item.downcast::<String>() {
            results.push(arc_str.clone());
            break;
          }
        } else {
          break;
        }
      }
      _ = &mut timeout => break,
    }
  }

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

#[tokio::test]
async fn test_string_replace_non_string_input() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send non-string input
  let _ = in_tx
    .send(Arc::new(42i32) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("x".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("y".to_string()) 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 String"));
}

#[tokio::test]
async fn test_string_replace_non_string_pattern() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send non-string pattern
  let _ = in_tx
    .send(Arc::new("Hello".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new(42i32) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_tx
    .send(Arc::new("y".to_string()) 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("pattern must be String"));
}

#[tokio::test]
async fn test_string_replace_non_string_replacement() {
  let node = StringReplaceNode::new("test_replace".to_string());

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

  // Send non-string replacement
  let _ = in_tx
    .send(Arc::new("Hello".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = pattern_tx
    .send(Arc::new("H".to_string()) as Arc<dyn Any + Send + Sync>)
    .await;
  let _ = replacement_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("replacement must be String"));
}