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use rstring_builder::StringBuilder;
use text_reader::TextReader;
fn remove_all_struct<S: AsRef<str>>(json: S) -> String {
let json = json.as_ref();
let mut builder = StringBuilder::new();
let mut reader = TextReader::new(json);
while reader.has_next() {
match reader.next() {
Some('"') => {
let mut last_coma = false;
if let Some(',') = reader.back().peek() {
last_coma = true;
}
reader.next();
let mut detector = reader.detector();
if detector.next_text("@struct\"").no() {
builder.append('"');
continue;
}
let mut times = 0;
while reader.has_next() {
match reader.next() {
Some('"') => {
times += 1;
if times == 2 {
break;
}
},
Some(ch) => {},
None => {}
}
}
let need_rm_last_coma = match reader.next() {
Some(',') => false,
Some('}') => {
reader.back();
true
},
Some(']') => {
reader.back();
true
},
_ => panic!("Json fail")
};
if need_rm_last_coma {
builder.delete_at(builder.len() - 1);
}
}
Some(ch) => {
builder.append(ch);
continue;
}
None => {}
}
}
builder.string()
}
pub fn fill_json_struct<S: AsRef<str>>(json: S) -> String {
let json = self::remove_all_struct(json.as_ref());
let mut builder = StringBuilder::new();
let mut reader = TextReader::new(json);
while reader.has_next() {
match reader.next() {
Some('"') => {
builder.append('"');
let mut detector = reader.detector();
if detector.next_text("@type\"").no() {
continue;
}
builder.append("@type\"");
let mut fnbuilder = StringBuilder::new();
let mut times = 0;
while reader.has_next() {
match reader.next() {
Some(':') => {
builder.append(':');
while reader.has_next() {
match reader.next() {
Some('"') => {
reader.back();
break
}
Some(ch) => {
builder.append(ch);
continue
},
None => continue
}
}
continue;
}
Some('"') => {
match times {
0 => {
builder.append("\"");
times += 1;
continue;
}
1 => {
builder.append(fnbuilder.string())
.append("\",")
.append(r#""@struct":""#)
.append(uppercase_first_char(fnbuilder.string()))
.append('"');
break;
}
_ => {}
}
continue;
}
Some(ch) => {
fnbuilder.append(ch);
continue;
}
None => {}
}
}
}
Some(ch) => {
builder.append(ch);
continue;
}
None => {}
}
}
builder.string()
}
pub fn extra_struct<S: AsRef<str>>(json: S) -> Option<String> {
let json = self::fill_json_struct(json);
let jve = serde_json::from_str::<serde_json::Value>(&json[..]);
if let Err(e) = jve {
eprintln!("{} => {:?}", json, e);
return None;
}
let jve = jve.unwrap();
match jve.get("@struct") {
Some(t) => {
if t.is_string() {
return t.as_str().map(|v| v.to_string());
}
None
}
None => None
}
}
pub(crate) fn uppercase_first_char<S: AsRef<str>>(s: S) -> String {
let mut c = s.as_ref().chars();
match c.next() {
None => String::new(),
Some(f) => f.to_uppercase().collect::<String>() + c.as_str(),
}
}
#[cfg(test)]
mod rdtest {
use crate::types::{RObject, UpdateAuthorizationState};
#[test]
fn test_fill_json_struct() {
let json = r#"{"@type":"updateAuthorizationState","authorization_state":{"@type":"authorizationStateWaitTdlibParameters"}}"#;
let json = super::fill_json_struct(json);
assert_eq!(json, r#"{"@type":"updateAuthorizationState","@struct":"UpdateAuthorizationState","authorization_state":{"@type":"authorizationStateWaitTdlibParameters","@struct":"AuthorizationStateWaitTdlibParameters"}}"#);
let state: UpdateAuthorizationState = serde_json::from_str(&json[..]).expect("Json fail");
assert_eq!("updateAuthorizationState", state.td_name());
}
#[test]
fn test_fill_lose_struct() {
let json = r#"{"@type":"updateAuthorizationState","authorization_state":{"@struct":"AuthorizationStateWaitTdlibParameters","@type":"authorizationStateWaitTdlibParameters"}}"#;
let ret = super::fill_json_struct(json);
assert_eq!(ret, r#"{"@type":"updateAuthorizationState","@struct":"UpdateAuthorizationState","authorization_state":{"@type":"authorizationStateWaitTdlibParameters","@struct":"AuthorizationStateWaitTdlibParameters"}}"#)
}
#[test]
fn test_extra_struct() {
let json = r#"{"@type":"updateAuthorizationState","@struct":"UpdateAuthorizationState","authorization_state":{"@type":"authorizationStateWaitTdlibParameters","@struct":"AuthorizationStateWaitTdlibParameters"}}"#;
let stname = super::extra_struct(json);
assert!(stname.is_some());
assert_eq!("UpdateAuthorizationState", stname.unwrap());
}
#[test]
fn test_fill2() {
let json = r#"{"@type":"updateOption","@struct":"UpdateOption","name":"version","value":{"@type":"optionValueString","@struct":"OptionValueString","value":"1.4.0"}}"#;
let ret = super::fill_json_struct(json);
assert_eq!(json, &ret[..])
}
}