redsunlib/src/user.rs
2020-11-19 20:42:18 -08:00

130 lines
3.5 KiB
Rust

// CRATES
use actix_web::{get, web, HttpResponse, Result};
use askama::Template;
use chrono::{TimeZone, Utc};
#[path = "utils.rs"]
mod utils;
use utils::{nested_val, request, val, ErrorTemplate, Flair, Params, Post, User};
// STRUCTS
#[derive(Template)]
#[template(path = "user.html", escape = "none")]
struct UserTemplate {
user: User,
posts: Vec<Post>,
sort: String,
}
async fn render(username: String, sort: String) -> Result<HttpResponse> {
let user = user(&username).await;
let posts = posts(username, &sort).await;
if user.is_err() || posts.is_err() {
let s = ErrorTemplate {
message: user.err().unwrap().to_string(),
}
.render()
.unwrap();
Ok(HttpResponse::Ok().content_type("text/html").body(s))
} else {
let s = UserTemplate {
user: user.unwrap(),
posts: posts.unwrap(),
sort: sort,
}
.render()
.unwrap();
Ok(HttpResponse::Ok().content_type("text/html").body(s))
}
}
// SERVICES
#[get("/u/{username}")]
async fn page(web::Path(username): web::Path<String>, params: web::Query<Params>) -> Result<HttpResponse> {
match &params.sort {
Some(sort) => render(username, sort.to_string()).await,
None => render(username, "hot".to_string()).await,
}
}
// USER
async fn user(name: &String) -> Result<User, &'static str> {
// Build the Reddit JSON API url
let url: String = format!("https://www.reddit.com/user/{}/about.json", name);
// Send a request to the url, receive JSON in response
let req = request(url).await;
// If the Reddit API returns an error, exit this function
if req.is_err() {
return Err(req.err().unwrap());
}
// Otherwise, grab the JSON output from the request
let res = req.unwrap();
// Parse the JSON output into a User struct
Ok(User {
name: name.to_string(),
icon: nested_val(&res, "subreddit", "icon_img").await,
karma: res["data"]["total_karma"].as_i64().unwrap(),
banner: nested_val(&res, "subreddit", "banner_img").await,
description: nested_val(&res, "subreddit", "public_description").await,
})
}
// POSTS
async fn posts(sub: String, sort: &String) -> Result<Vec<Post>, &'static str> {
// Build the Reddit JSON API url
let url: String = format!("https://www.reddit.com/u/{}/.json?sort={}", sub, sort);
// Send a request to the url, receive JSON in response
let req = request(url).await;
// If the Reddit API returns an error, exit this function
if req.is_err() {
return Err(req.err().unwrap());
}
// Otherwise, grab the JSON output from the request
let res = req.unwrap();
let post_list = res["data"]["children"].as_array().unwrap();
let mut posts: Vec<Post> = Vec::new();
for post in post_list.iter() {
let img = if val(post, "thumbnail").await.starts_with("https:/") {
val(post, "thumbnail").await
} else {
String::new()
};
let unix_time: i64 = post["data"]["created_utc"].as_f64().unwrap().round() as i64;
let score = post["data"]["score"].as_i64().unwrap();
let title = val(post, "title").await;
posts.push(Post {
title: if title.is_empty() { "Comment".to_string() } else { title },
community: val(post, "subreddit").await,
body: String::new(),
author: val(post, "author").await,
score: if score > 1000 { format!("{}k", score / 1000) } else { score.to_string() },
media: img,
url: val(post, "permalink").await,
time: Utc.timestamp(unix_time, 0).format("%b %e '%y").to_string(),
flair: Flair(
val(post, "link_flair_text").await,
val(post, "link_flair_background_color").await,
if val(post, "link_flair_text_color").await == "dark" {
"black".to_string()
} else {
"white".to_string()
},
),
});
}
Ok(posts)
}