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use serde_json::Value;
use std::fs::File;
use std::io::Write;
use crate::{
models::{enums::Mode, metrics::Metadata},
utils::error::{MedError, MedErrorType},
};
use crate::app::processor::ProcessRuntime;
pub fn json_processor(
tx_metadata: flume::Sender<Metadata>,
files_path: &str,
output_path: &str,
process_runtime: ProcessRuntime,
) -> Result<(), MedError> {
// prepare the metrics
let mut total_records: usize = 0;
let mut failed_records: usize = 0;
let mut record_failed_reason: Vec<MedError> = Vec::new();
match std::fs::read_to_string(files_path) {
Ok(text) => match serde_json::from_str::<Value>(&text) {
Ok(data) => {
if data.is_array() {
total_records = data.as_array().unwrap().len();
} else {
total_records = 1;
}
let mut json_data = data;
let new_json_data = json_med_core(&mut json_data, &process_runtime);
write_json(&new_json_data, output_path).unwrap();
}
Err(err) => {
let record_error = MedError {
message: Some(format!(
"please check {} {:?} format",
files_path, process_runtime.mode
)),
cause: Some(err.to_string()),
error_type: MedErrorType::CsvError,
};
record_failed_reason.push(record_error);
failed_records += 1;
}
},
Err(err) => {
let record_error = MedError {
message: Some(format!(
"please check {} {:?} format",
files_path, process_runtime.mode
)),
cause: Some(err.to_string()),
error_type: MedErrorType::CsvError,
};
record_failed_reason.push(record_error);
failed_records += 1;
}
}
tx_metadata
.send(Metadata {
total_records,
failed_records,
record_failed_reason,
})
.unwrap();
Ok(())
}
fn json_med_core(value: &mut Value, process_runtime: &ProcessRuntime) -> Value {
match value {
Value::Array(arr) => {
// debug!("[arr] {:?}", arr);
for item in arr {
if item.is_array() {
json_med_core(item, process_runtime);
}
if item.is_object() {
// info!("is obj {:?} ", val);
item.as_object_mut()
.unwrap()
.into_iter()
.for_each(|(key, val)| {
//debug!("key: {:?}, val: {:?} ", key, val);
//mask parent lvl
if process_runtime.fields.contains(key) {
if let Value::String(mut masked_val) = val.to_owned() {
match process_runtime.mode {
Mode::MASK => {
masked_val.clear();
let symbols =
process_runtime.to_owned().mask_symbols.unwrap();
masked_val.push_str(&symbols);
}
Mode::ENCRYPT => {
if let Some(cypher) = process_runtime.to_owned().cypher
{
if let Some(standard) = process_runtime.standard {
let masked = cypher
.encrypt(&masked_val, &standard)
.unwrap();
masked_val.clear();
masked_val.push_str(&masked);
}
}
}
Mode::DECRYPT => {
if let Some(cypher) = process_runtime.to_owned().cypher
{
if let Some(standard) = process_runtime.standard {
let masked = cypher
.decrypt(&masked_val, &standard)
.unwrap();
masked_val.clear();
masked_val.push_str(&masked);
}
}
}
}
*val = Value::String(masked_val);
}
}
if val.is_array() {
json_med_core(val, process_runtime);
}
if val.is_object() {
json_med_core(val, process_runtime);
}
});
}
}
}
Value::Object(obj) => {
for (key, val) in obj {
// debug!("key : {:?}, val: {:?}", key, val);
if val.is_array() {
json_med_core(val, process_runtime);
}
if process_runtime.fields.contains(key) {
if let Value::String(mut masked_val) = val.to_owned() {
match process_runtime.mode {
Mode::MASK => {
masked_val.clear();
masked_val
.push_str(&process_runtime.to_owned().mask_symbols.unwrap());
}
Mode::ENCRYPT => {
if let Some(cypher) = process_runtime.to_owned().cypher {
if let Some(standard) = process_runtime.standard {
let masked =
cypher.encrypt(&masked_val, &standard).unwrap();
masked_val.clear();
masked_val.push_str(&masked);
}
}
}
Mode::DECRYPT => {
if let Some(cypher) = process_runtime.to_owned().cypher {
if let Some(standard) = process_runtime.standard {
let masked =
cypher.decrypt(&masked_val, &standard).unwrap();
masked_val.clear();
masked_val.push_str(&masked);
}
}
}
}
*val = Value::String(masked_val);
}
}
}
}
_ => {}
}
value.clone()
}
pub fn write_json(masked_data: &Value, output_file: &str) -> Result<(), MedError> {
let mut json_file = File::create(output_file)?;
let data = serde_json::to_string(masked_data)?;
json_file.write_all(data.as_bytes())?;
json_file.sync_data()?;
Ok(())
}
#[cfg(test)]
#[path = "../tests/json_test.rs"]
mod json_test;