github-ops
117 lines
3.2 KiB
Rust
117 lines
3.2 KiB
Rust
use std::collections::BTreeMap;
|
|
|
|
use serde_json::Value;
|
|
|
|
use crate::{JsonPathRoot, MappingRule, MappingSet};
|
|
|
|
pub fn infer_mapping_from_samples(
|
|
source_sample: &Value,
|
|
source_root: JsonPathRoot,
|
|
target_sample: &Value,
|
|
target_root: JsonPathRoot,
|
|
) -> MappingSet {
|
|
let source_paths = collect_leaf_paths(source_sample, source_root);
|
|
let target_paths = collect_leaf_paths(target_sample, target_root);
|
|
let mut rules = Vec::new();
|
|
|
|
for (leaf_name, source_path) in source_paths {
|
|
let Some(target_path) = target_paths.get(&leaf_name) else {
|
|
continue;
|
|
};
|
|
|
|
rules.push(MappingRule {
|
|
source: source_path,
|
|
target: target_path.clone(),
|
|
required: false,
|
|
default_value: None,
|
|
transform: None,
|
|
condition: None,
|
|
notes: None,
|
|
});
|
|
}
|
|
|
|
MappingSet { rules }
|
|
}
|
|
|
|
fn collect_leaf_paths(sample: &Value, root: JsonPathRoot) -> BTreeMap<String, String> {
|
|
let mut collected = BTreeMap::new();
|
|
let mut segments = Vec::new();
|
|
|
|
collect_leaf_paths_recursive(sample, &mut segments, &mut collected);
|
|
|
|
collected
|
|
.into_iter()
|
|
.map(|(leaf, path_segments)| {
|
|
let mut path = format!("$.{}", root.as_str());
|
|
|
|
for segment in path_segments {
|
|
path.push('.');
|
|
path.push_str(&segment);
|
|
}
|
|
|
|
(leaf, path)
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
fn collect_leaf_paths_recursive(
|
|
sample: &Value,
|
|
segments: &mut Vec<String>,
|
|
collected: &mut BTreeMap<String, Vec<String>>,
|
|
) {
|
|
match sample {
|
|
Value::Object(object) => {
|
|
for (field, value) in object {
|
|
segments.push(field.clone());
|
|
collect_leaf_paths_recursive(value, segments, collected);
|
|
segments.pop();
|
|
}
|
|
}
|
|
Value::Array(values) => {
|
|
if let Some(first) = values.first() {
|
|
collect_leaf_paths_recursive(first, segments, collected);
|
|
}
|
|
}
|
|
Value::Null | Value::Bool(_) | Value::Number(_) | Value::String(_) => {
|
|
if let Some(leaf) = segments.last() {
|
|
collected
|
|
.entry(leaf.clone())
|
|
.or_insert_with(|| segments.clone());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use serde_json::json;
|
|
|
|
use crate::{JsonPathRoot, infer_mapping_from_samples};
|
|
|
|
#[test]
|
|
fn infers_rules_from_matching_leaf_names() {
|
|
let mapping = infer_mapping_from_samples(
|
|
&json!({
|
|
"lead": {
|
|
"email": "user@example.com",
|
|
"name": "Ada"
|
|
}
|
|
}),
|
|
JsonPathRoot::Mcp,
|
|
&json!({
|
|
"contact": {
|
|
"email": "user@example.com"
|
|
},
|
|
"name": "Ada"
|
|
}),
|
|
JsonPathRoot::RequestBody,
|
|
);
|
|
|
|
assert_eq!(mapping.rules.len(), 2);
|
|
assert_eq!(mapping.rules[0].source, "$.mcp.lead.email");
|
|
assert_eq!(mapping.rules[0].target, "$.request.body.contact.email");
|
|
assert_eq!(mapping.rules[1].source, "$.mcp.lead.name");
|
|
assert_eq!(mapping.rules[1].target, "$.request.body.name");
|
|
}
|
|
}
|