79 lines
2.3 KiB
Rust
79 lines
2.3 KiB
Rust
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pub use swactor_vastai::SelectionPolicy;
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use swactor_vastai::{Offer, VastClient};
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#[derive(Clone, Debug, PartialEq)]
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pub struct OfferPreview {
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pub offer_id: u64,
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pub host_id: Option<u64>,
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pub gpu_name: String,
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pub gpu_ram_mb: Option<u64>,
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pub dollars_per_hour: f64,
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}
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impl OfferPreview {
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pub fn from_offer(offer: Offer) -> Self {
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Self {
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offer_id: offer.id,
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host_id: offer.host_id,
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gpu_name: offer.gpu_name,
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gpu_ram_mb: offer.gpu_ram.map(|gb| (gb * 1024.0).round() as u64),
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dollars_per_hour: offer.dph_total,
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}
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}
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}
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pub trait OfferPreviewer {
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fn preview(&self, api_key: &str, policy: &SelectionPolicy) -> Result<OfferPreview, String>;
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}
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#[derive(Clone, Copy, Debug, Default)]
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pub struct VastAiOfferPreviewer;
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impl OfferPreviewer for VastAiOfferPreviewer {
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fn preview(&self, api_key: &str, policy: &SelectionPolicy) -> Result<OfferPreview, String> {
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let runtime = tokio::runtime::Builder::new_current_thread()
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.enable_all()
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.build()
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.map_err(|e| format!("vastai offer preview runtime: {e}"))?;
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let client = VastClient::new(api_key.to_owned());
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let offers = runtime.block_on(client.search_offers(policy, 1))?;
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let offer = offers
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.into_iter()
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.next()
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.ok_or_else(|| "no Vast.ai offers available".to_owned())?;
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Ok(OfferPreview::from_offer(offer))
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use swactor_vastai::Offer;
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#[test]
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fn vastai_offer_preview_preserves_offer_identity_price_and_vram_megabytes() {
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let preview = OfferPreview::from_offer(Offer {
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id: 42,
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gpu_name: "RTX 4090".to_owned(),
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dph_total: 0.375,
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gpu_ram: Some(23.5),
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geolocation: Some("US".to_owned()),
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inet_down_cost_per_tb: 0.0,
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inet_up_cost_per_tb: 0.0,
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host_id: Some(9001),
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verification: Some("verified".to_owned()),
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});
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assert_eq!(
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preview,
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OfferPreview {
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offer_id: 42,
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host_id: Some(9001),
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gpu_name: "RTX 4090".to_owned(),
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gpu_ram_mb: Some(24_064),
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dollars_per_hour: 0.375,
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}
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);
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}
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}
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