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use reqwest::header::HeaderMap;
use serde_json::{Map, Number, Value};
use std::error::Error;
use std::result::Result;
use url::form_urlencoded;
pub struct QueryOptions {
pub(crate) user_id: String,
}
impl QueryOptions {
pub fn new() -> Self {
QueryOptions {
user_id: "test_user".to_string(),
}
}
pub fn user_id<'a>(&'a mut self, user_id: &str) -> &'a mut Self {
self.user_id = user_id.to_string();
self
}
}
pub trait Query {
fn get_url(&self, api_url: &str) -> String;
fn get_headers(
&self,
client_id: &str,
user_id: &str,
timestamp: u64,
) -> Result<HeaderMap, Box<dyn Error>>;
}
#[derive(Debug)]
pub(crate) struct TextQuery {
query: String,
}
impl TextQuery {
pub fn new(query_text: &str) -> TextQuery {
TextQuery {
query: query_text.to_string(),
}
}
}
impl Query for TextQuery {
fn get_url(&self, api_url: &str) -> String {
let url: String = form_urlencoded::Serializer::new(format!("{}v1/text?", api_url))
.append_pair("query", &self.query)
.finish();
url
}
fn get_headers(
&self,
client_id: &str,
user_id: &str,
timestamp: u64,
) -> std::result::Result<HeaderMap, Box<dyn std::error::Error>> {
let mut request_info = Map::new();
request_info.insert(
"TimeStamp".to_string(),
Value::Number(Number::from(timestamp)),
);
request_info.insert("ClientID".to_string(), Value::String(client_id.to_string()));
request_info.insert("UserID".to_string(), Value::String(user_id.to_string()));
request_info.insert(
"SDK".to_string(),
Value::String("houndify-sdk-rust/1.0".to_string()),
);
let request_info_json = serde_json::to_string(&request_info)?;
let mut header_map = HeaderMap::new();
header_map.insert("Hound-Request-Info", request_info_json.parse()?);
header_map.insert(
"Hound-Request-Info-Length",
request_info_json.len().to_string().parse()?,
);
Ok(header_map)
}
}