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use crate::chunkid::ChunkId;
use crate::generation::FinishedGeneration;
pub struct GenerationList {
list: Vec<FinishedGeneration>,
}
impl GenerationList {
pub fn new(gens: Vec<FinishedGeneration>) -> Self {
let mut list = gens.clone();
list.sort_by_cached_key(|gen| gen.ended().to_string());
Self { list }
}
pub fn iter(&self) -> impl Iterator<Item = &FinishedGeneration> {
self.list.iter()
}
pub fn resolve(&self, genref: &str) -> Option<String> {
let gen = if self.list.is_empty() {
None
} else if genref == "latest" {
let i = self.list.len() - 1;
Some(self.list[i].clone())
} else {
let genref: ChunkId = genref.parse().unwrap();
let hits: Vec<FinishedGeneration> = self
.iter()
.filter(|gen| gen.id() == genref)
.map(|gen| gen.clone())
.collect();
if hits.len() == 1 {
Some(hits[0].clone())
} else {
None
}
};
match gen {
None => None,
Some(gen) => Some(gen.id().to_string()),
}
}
}
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