use docs_native_crdt::Editor;
use serde_json::{json, Value};

fn plain(value: &Value) -> String {
    if let Some(runs) = value["runs"].as_array() {
        return runs.iter().filter_map(|run| run["insert"].as_str()).collect();
    }
    value["children"].as_array().map(|children| children.iter().map(plain).collect()).unwrap_or_default()
}

// Port of core/tests/snapshot.rs:121, through the native Editor's actual
// snapshot operation and vendored yrs. encode_diff_v1 drops this pending data.
#[test]
fn a_snapshot_with_a_parked_update_heals_once_its_dependency_arrives() {
    let mut origin = Editor::new("parked", 1);
    let dependency = origin.command(&json!({"op":"insert_element","at":0,"type":"paragraph"})).unwrap();
    let dependent = origin.command(&json!({"op":"display_edit","at":0,"length":0,"text":"hello world"})).unwrap();
    let parked = Editor::new("parked", 2);
    parked.apply(&dependent).unwrap();
    assert_eq!(plain(&parked.projection()), "");
    let rebuilt = Editor::new("parked", 3);
    rebuilt.apply(&parked.snapshot()).unwrap();
    assert_eq!(plain(&rebuilt.projection()), "");
    parked.apply(&dependency).unwrap();
    rebuilt.apply(&dependency).unwrap();
    assert_eq!(plain(&parked.projection()), "hello world");
    assert_eq!(plain(&rebuilt.projection()), plain(&parked.projection()));
}