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// ---------------- [ File: fuzzy-from-json-value/src/recursively_flatten_fields.rs ]
crate::ix!();
#[tracing::instrument(level = "trace", skip_all)]
pub fn recursively_flatten_fields(json_val: &mut serde_json::Value) {
use serde_json::Value::{Object, Array};
match json_val {
// If it's an Object => flatten "fields" if present, then recurse for children
Object(obj) => {
if let Some(fields_val) = obj.remove("fields") {
if let Some(fields_map) = fields_val.as_object() {
trace!("Flattening 'fields' into parent object => merging keys...");
for (k, v) in fields_map {
if obj.contains_key(k) {
warn!("Key '{}' is already present in parent object. Skipping overwrite.", k);
} else {
obj.insert(k.to_string(), v.clone());
}
}
} else {
debug!("'fields' was present but not an object => putting it back in top-level.");
obj.insert("fields".to_string(), fields_val);
}
}
// Now recursively flatten child values
for (_k, child_val) in obj.iter_mut() {
recursively_flatten_fields(child_val);
}
}
// If it's an Array => flatten each element inside
Array(arr) => {
for elem in arr {
recursively_flatten_fields(elem);
}
}
// If it's a scalar (string/number/bool/null), nothing to flatten
_ => { /* do nothing */ }
}
}