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//! Json
use alloc::string::String;
use alloc::vec::Vec;
use serde_json::{self, Map, json};
use base64::{Engine, engine::general_purpose};
use crate::array::Array;
use crate::id::Id;
use crate::map::Map as NsonMap;
use crate::value::Value;
impl From<Value> for serde_json::Value {
fn from(value: Value) -> Self {
match value {
Value::F32(v) => json!(v),
Value::F64(v) => json!({"$f64": v}),
Value::I32(v) => json!(v),
Value::I64(v) => json!({"$i64": v}),
Value::U32(v) => json!({"$u32": v}),
Value::U64(v) => json!({"$u64": v}),
Value::I8(v) => json!({"$i8": v}),
Value::U8(v) => json!({"$u8": v}),
Value::I16(v) => json!({"$i16": v}),
Value::U16(v) => json!({"$u16": v}),
Value::String(v) => json!(v),
Value::Array(v) => {
let array: Vec<serde_json::Value> = v.into_iter().map(|v| v.into()).collect();
json!(array)
}
Value::Map(v) => {
let map: Map<String, serde_json::Value> =
v.into_iter().map(|(k, v)| (k, v.into())).collect();
json!(map)
}
Value::Bool(v) => json!(v),
Value::Null => json!(null),
Value::Binary(v) => json!({"$bin": general_purpose::STANDARD.encode(v.0)}),
Value::TimeStamp(v) => json!({"$tim": v.0}),
Value::Id(v) => json!({"$mid": v.to_hex()}),
}
}
}
impl From<serde_json::Value> for Value {
fn from(value: serde_json::Value) -> Self {
match value {
serde_json::Value::Number(v) => {
if let Some(i) = v.as_i64() {
Value::I32(i as i32)
} else if let Some(u) = v.as_u64() {
Value::I32(u as i32)
} else if let Some(f) = v.as_f64() {
Value::F32(f as f32)
} else {
unreachable!()
}
}
serde_json::Value::String(v) => v.into(),
serde_json::Value::Bool(v) => v.into(),
serde_json::Value::Array(v) => {
let array: Vec<Value> = v.into_iter().map(|v| v.into()).collect();
Value::Array(Array::from_vec(array))
}
serde_json::Value::Object(map) => {
if map.len() == 1 {
let keys: Vec<_> = map.keys().map(|s| s.as_str()).collect();
match keys.as_slice() {
["$tim"] => {
if let Some(v) = map.get("$tim")
&& let Some(u) = v.as_u64()
{
return Value::TimeStamp(u.into());
}
}
["$bin"] => {
if let Some(v) = map.get("$bin")
&& let Some(hex) = v.as_str()
&& let Ok(bin) = general_purpose::STANDARD.decode(hex)
{
return bin.into();
}
}
["$mid"] => {
if let Some(v) = map.get("$mid")
&& let Some(hex) = v.as_str()
&& let Ok(message_id) = Id::with_string(hex)
{
return message_id.into();
}
}
["$f64"] => {
if let Some(v) = map.get("$f64")
&& let Some(f) = v.as_f64()
{
return Value::F64(f);
}
}
["$i64"] => {
if let Some(v) = map.get("$i64")
&& let Some(i) = v.as_i64()
{
return Value::I64(i);
}
}
["$u32"] => {
if let Some(v) = map.get("$u32")
&& let Some(u) = v.as_u64()
{
return Value::U32(u as u32);
}
}
["$u64"] => {
if let Some(v) = map.get("$u64")
&& let Some(u) = v.as_u64()
{
return Value::U64(u);
}
}
["$i8"] => {
if let Some(v) = map.get("$i8")
&& let Some(i) = v.as_i64()
{
return Value::I8(i as i8);
}
}
["$u8"] => {
if let Some(v) = map.get("$u8")
&& let Some(u) = v.as_u64()
{
return Value::U8(u as u8);
}
}
["$i16"] => {
if let Some(v) = map.get("$i16")
&& let Some(i) = v.as_i64()
{
return Value::I16(i as i16);
}
}
["$u16"] => {
if let Some(v) = map.get("$u16")
&& let Some(u) = v.as_u64()
{
return Value::U16(u as u16);
}
}
_ => (),
}
}
let map: NsonMap = map.into_iter().map(|(k, v)| (k, v.into())).collect();
Value::Map(map)
}
serde_json::Value::Null => Value::Null,
}
}
}
impl From<NsonMap> for serde_json::Value {
fn from(map: NsonMap) -> Self {
Value::Map(map).into()
}
}
impl From<serde_json::Value> for NsonMap {
fn from(json: serde_json::Value) -> Self {
let value: Value = json.into();
match value {
Value::Map(map) => map,
_ => NsonMap::new(),
}
}
}
#[cfg(test)]
mod test {
use crate::{Id, TimeStamp, Value, m};
use serde_json::{self, json};
use crate::__vec;
#[test]
fn convert_json() {
let json = json!({
"a": 1i32,
"b": {"$i64": 2i64},
"c": {"$u32": 3u32},
"d": {"$u64": 4u64},
"e": 5.6f32,
"f": {"$f64": 7.8f64},
"g": {
"$tim": 456
},
"h": {
"$mid": "0171253e54db9aef760d5fbd"
},
"i": {
"$bin": "AQIDBAUG"
}
});
let message = m! {
"a": 1i32,
"b": 2i64,
"c": 3u32,
"d": 4u64,
"e": 5.6f32,
"f": 7.8f64,
"g": TimeStamp(456),
"h": Id::with_string("0171253e54db9aef760d5fbd").unwrap(),
"i": __vec![1u8, 2, 3, 4, 5, 6]
};
let nson_value: Value = message.clone().into();
let value: serde_json::Value = message.into();
assert!(json == value);
let value2: Value = json.into();
assert!(nson_value == value2);
}
}