1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
//! Guild name retrieval and caching functions.
use std::collections::HashMap;
use std::fs::File;
use std::path::PathBuf;
use std::sync::RwLock;
use once_cell::sync::Lazy;
use serde::{Deserialize, Serialize};
static CACHE: Lazy<RwLock<HashMap<String, Guild>>> = Lazy::new(|| RwLock::new(HashMap::new()));
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct Guild {
tag: String,
name: String,
}
impl Guild {
pub fn tag(&self) -> &str {
&self.tag
}
pub fn name(&self) -> &str {
&self.name
}
}
/// Looks up the given guild.
///
/// This checks the cache first, and if nothing was found, it will hit the API.
pub fn lookup(api_id: &str) -> Option<Guild> {
{
let cache = CACHE.read().unwrap();
if let Some(guild) = cache.get(api_id) {
return Some(guild.clone());
}
}
let mut cache = CACHE.write().unwrap();
let url = format!("https://api.guildwars2.com/v2/guild/{}", api_id);
let result = ureq::get(&url)
.call()
.into_json()
.expect("Invalid JSON in API response");
let name = result["name"].as_str()?;
let tag = result["tag"].as_str()?;
let guild = Guild {
tag: tag.into(),
name: name.into(),
};
cache.insert(api_id.into(), guild.clone());
Some(guild)
}
fn cache_path() -> PathBuf {
let mut cache_path = dirs::cache_dir().unwrap();
cache_path.push("raidgrep");
cache_path
}
/// Loads the cache from the file system.
pub fn prepare_cache() {
let path = cache_path();
if !path.is_file() {
return;
}
let file = File::open(path).expect("Unable to read cache file");
let cache = serde_json::from_reader(file).expect("Cache file has invalid format");
let mut target = CACHE.write().unwrap();
*target = cache;
}
/// Saves the cache to the file system
pub fn save_cache() {
let path = cache_path();
let file = File::create(path).expect("Cannot open cache for writing");
serde_json::to_writer(file, &*CACHE.read().unwrap()).unwrap();
}
|
