redsunlib/src/search.rs
2021-01-30 21:43:46 -08:00

100 lines
2.4 KiB
Rust

// CRATES
use crate::utils::{cookie, error, fetch_posts, param, prefs, request, val, Post, Preferences};
use actix_web::{HttpRequest, HttpResponse};
use askama::Template;
// STRUCTS
struct SearchParams {
q: String,
sort: String,
t: String,
before: String,
after: String,
restrict_sr: String,
}
// STRUCTS
struct Subreddit {
name: String,
url: String,
description: String,
subscribers: i64,
}
#[derive(Template)]
#[template(path = "search.html", escape = "none")]
struct SearchTemplate {
posts: Vec<Post>,
subreddits: Vec<Subreddit>,
sub: String,
params: SearchParams,
prefs: Preferences,
}
// SERVICES
pub async fn find(req: HttpRequest) -> HttpResponse {
let nsfw_results = if cookie(&req, "show_nsfw") == "on" { "&include_over_18=on" } else { "" };
let path = format!("{}.json?{}{}", req.path(), req.query_string(), nsfw_results);
let sub = req.match_info().get("sub").unwrap_or("").to_string();
let sort = if param(&path, "sort").is_empty() {
"relevance".to_string()
} else {
param(&path, "sort")
};
let subreddits = if param(&path, "restrict_sr").is_empty() {
search_subreddits(param(&path, "q")).await
} else {
Vec::new()
};
match fetch_posts(&path, String::new()).await {
Ok((posts, after)) => HttpResponse::Ok().content_type("text/html").body(
SearchTemplate {
posts,
subreddits,
sub,
params: SearchParams {
q: param(&path, "q"),
sort,
t: param(&path, "t"),
before: param(&path, "after"),
after,
restrict_sr: param(&path, "restrict_sr"),
},
prefs: prefs(req),
}
.render()
.unwrap(),
),
Err(msg) => error(msg).await,
}
}
async fn search_subreddits(q: String) -> Vec<Subreddit> {
let subreddit_search_path = format!("/subreddits/search.json?q={}&limit=3", q.replace(' ', "+"));
// Send a request to the url
match request(subreddit_search_path).await {
// If success, receive JSON in response
Ok(response) => {
match response["data"]["children"].as_array() {
// For each subreddit from subreddit list
Some(list) => list
.iter()
.map(|subreddit| Subreddit {
name: val(subreddit, "display_name_prefixed"),
url: val(subreddit, "url"),
description: val(subreddit, "public_description"),
subscribers: subreddit["data"]["subscribers"].as_u64().unwrap_or_default() as i64,
})
.collect::<Vec<Subreddit>>(),
_ => Vec::new(),
}
}
// If the Reddit API returns an error, exit this function
_ => Vec::new(),
}
}