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feat: weighted random, 1 per minute
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parent
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commit
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2 changed files with 39 additions and 6 deletions
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@ -6,4 +6,3 @@ edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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rand = "0.8.5"
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44
src/main.rs
44
src/main.rs
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@ -1,11 +1,45 @@
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use rand::seq::IteratorRandom;
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use std::{hash::Hasher, collections::hash_map::DefaultHasher, time::{SystemTime, UNIX_EPOCH}};
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// this is trash but i only need a unique string each minute
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fn formatted_timestamp() -> String {
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let t = SystemTime::now()
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.duration_since(UNIX_EPOCH)
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.expect("UNIX time overflowed again")
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.as_secs();
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format!(
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"D{} H{} M{}",
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(t / (60 * 60 * 24)),
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(t / (60 * 60)) % 60,
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(t / 60) % 60,
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)
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}
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fn main() {
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let file = std::env::var("MOOD_FILE").unwrap_or("/srv/http/api/mood.txt".to_string());
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let content = std::fs::read_to_string(file).unwrap();
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let choice = content.lines().choose(&mut rand::thread_rng()).unwrap();
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let now_str = formatted_timestamp();
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let mut hasher = DefaultHasher::new();
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hasher.write(now_str.as_bytes());
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let index = hasher.finish() as usize;
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let file = std::env::var("MOOD_FILE").expect("missing MOOD_FILE env variable");
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let content = std::fs::read_to_string(file).expect("could not read MOOD_FILE contents");
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let lines : Vec<(u64, &str)> = content.lines()
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.map(|l| l.split_once(' ').unwrap())
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.map(|(n, l)| (n.parse::<u64>().unwrap(), l))
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.collect();
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let mut pool = Vec::new();
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pool.reserve(lines.iter().map(|(x,_)| x).sum::<u64>() as usize);
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for (count, line) in lines {
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for _ in 0..count {
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pool.push(line);
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}
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}
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let choice = pool[index % pool.len()];
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println!("Content-type: application/json");
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println!();
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println!("{{\"mood\":\"{}\"}}", choice);
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println!("{{\"id\":{},\"mood\":\"{}\"}}", index, choice);
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}
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