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use std::thread;
use std::time::Duration;
use serde_json::{self, Value as SerdeValue};
use super::rlua::Error as LuaError;
use super::rlua::Error::RuntimeError;
use super::rlua::{Context, Value as LuaValue};
use utils::error::ErrorKind::Connection;
use utils::Url;
use failure::Fail;
pub fn sleep(_: &Context, dur: u64) -> Result<(), LuaError> {
thread::sleep(Duration::from_millis(dur));
Ok(())
}
pub fn download(_: &Context, url: String) -> Result<String, LuaError> {
let url = Url::from(url).max_kib(1024);
match url.request() {
Ok(v) => Ok(v),
Err(e) => {
let error = match e.kind() {
Connection => e.cause().unwrap().to_string(),
_ => e.to_string(),
};
Err(RuntimeError(format!(
"Failed to download {} - {}",
url.as_str(),
error
)))
}
}
}
fn convert_value<'l>(lua: &Context<'l>, sval: SerdeValue, max_recurs: usize) -> Result<LuaValue<'l>, LuaError> {
if max_recurs == 0 {
return Err(RuntimeError(String::from(
"Reached max recursion level - json is nested too deep",
)));
}
let lval = match sval {
SerdeValue::Null => LuaValue::Nil,
SerdeValue::Bool(b) => LuaValue::Boolean(b),
SerdeValue::String(s) => LuaValue::String(lua.create_string(&s)?),
SerdeValue::Number(n) => {
let f = n.as_f64().ok_or_else(|| {
RuntimeError(String::from("Failed to convert number into double"))
})?;
LuaValue::Number(f)
}
SerdeValue::Array(arr) => {
let table = lua.create_table()?;
for (i, val) in arr.into_iter().enumerate() {
table.set(i + 1, convert_value(lua, val, max_recurs - 1)?)?;
}
LuaValue::Table(table)
}
SerdeValue::Object(obj) => {
let table = lua.create_table()?;
for (key, val) in obj {
table.set(key, convert_value(lua, val, max_recurs - 1)?)?;
}
LuaValue::Table(table)
}
};
Ok(lval)
}
pub fn json_decode<'l>(lua: &Context<'l>, json: String) -> Result<LuaValue<'l>, LuaError> {
let ser_val: SerdeValue =
serde_json::from_str(&json).map_err(|e| RuntimeError(e.to_string()))?;
convert_value(lua, ser_val, 25)
}
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