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extern crate reqwest;
extern crate serde_json;
extern crate cursive;
use cursive::Cursive;
use cursive::views::Dialog;
use serde_json::Value;
use reqwest::Response;
pub fn query_url_gen(title: &str) -> String {
// query config
let mut url = String::from("https://en.wikipedia.org");
url.push_str("/w/api.php?");
url.push_str("action=query&");
url.push_str("format=json&");
url.push_str("prop=extracts&");
url.push_str("indexpageids=1&");
url.push_str("titles=");
url.push_str(title);
url.push_str("&");
url.push_str("explaintext=1");
url
}
pub fn search_url_gen(search: &str) -> String {
search.replace(" ", "%20");
let mut url = String::from("https://en.wikipedia.org");
url.push_str("/w/api.php?");
url.push_str("action=opensearch&");
url.push_str("format=json&");
url.push_str("search=");
url.push_str(search);
url.push_str("&");
url.push_str("limit=10");
url
}
pub fn get_extract(mut res: Response) -> Result<String, reqwest::Error> {
let v: Value = match serde_json::from_str(&res.text()?) {
Ok(x) => x,
Err(x) => panic!("Failed to parse json\nReceived error {}", x),
};
let pageid = &v["query"]["pageids"][0];
let pageid_str = match pageid {
Value::String(id) => id,
_ => panic!("wut"),
};
match &v["query"]["pages"][pageid_str]["extract"] {
Value::String(extract) => {
// format to plain text
extract.replace("\\\\", "\\");
Ok(format!("{}", extract))
}
// ignore non strings
_ => Ok(format!(""))
}
}
pub fn get_search_results(search: &str) -> Result<Vec<String>, reqwest::Error> {
let url = search_url_gen(search);
let mut res = reqwest::get(&url[..])?;
let v: Value = serde_json::from_str(&res.text().unwrap())
.unwrap_or_else( |e| {
panic!("Recieved error {:?}", e);
} );
let mut results: Vec<String> = vec![];
for item in v[1].as_array().unwrap() {
match item {
Value::String(x) => results.push(x.to_string()),
// ignore non strings
_ => (),
}
}
Ok(results)
}
pub fn pop_error(s: &mut Cursive, msg: String) {
s.add_layer(Dialog::text(format!("{}", msg))
.button("Ok", |s| s.quit()));
}
pub fn handler(e: reqwest::Error) -> String {
let mut msg: String = String::new();
if e.is_http() {
match e.url() {
None => msg.push_str(&format!("No URL given")),
Some(url) => msg.push_str(&format!("Problem making request to: {}", url)),
}
}
if e.is_redirect() {
msg.push_str(&format!("server redirecting too many times or making loop"));
}
msg
}
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