use brk_error::Result;
use brk_indexer::Indexer;
use brk_traversable::Traversable;
use brk_types::{Cents, Height, StoredI8, Version};
use vecdb::{AnyVec, Database, Exit, ReadableVec, Rw, StorageMode, WritableVec};
use crate::{
indexes,
internal::{PerBlock, Price, RatioPerBlockPercentiles},
};
#[derive(Traversable)]
pub struct RarityMeterInner<M: StorageMode = Rw> {
pub pct0_5: Price<PerBlock<Cents, M>>,
pub pct1: Price<PerBlock<Cents, M>>,
pub pct2: Price<PerBlock<Cents, M>>,
pub pct5: Price<PerBlock<Cents, M>>,
pub pct95: Price<PerBlock<Cents, M>>,
pub pct98: Price<PerBlock<Cents, M>>,
pub pct99: Price<PerBlock<Cents, M>>,
pub pct99_5: Price<PerBlock<Cents, M>>,
pub index: PerBlock<StoredI8, M>,
pub score: PerBlock<StoredI8, M>,
}
impl RarityMeterInner {
pub(crate) fn forced_import(
db: &Database,
prefix: &str,
version: Version,
indexes: &indexes::Vecs,
) -> Result<Self> {
Ok(Self {
pct0_5: Price::forced_import(db, &format!("{prefix}_pct0_5"), version, indexes)?,
pct1: Price::forced_import(db, &format!("{prefix}_pct01"), version, indexes)?,
pct2: Price::forced_import(db, &format!("{prefix}_pct02"), version, indexes)?,
pct5: Price::forced_import(db, &format!("{prefix}_pct05"), version, indexes)?,
pct95: Price::forced_import(db, &format!("{prefix}_pct95"), version, indexes)?,
pct98: Price::forced_import(db, &format!("{prefix}_pct98"), version, indexes)?,
pct99: Price::forced_import(db, &format!("{prefix}_pct99"), version, indexes)?,
pct99_5: Price::forced_import(db, &format!("{prefix}_pct99_5"), version, indexes)?,
index: PerBlock::forced_import(db, &format!("{prefix}_index"), version, indexes)?,
score: PerBlock::forced_import(db, &format!("{prefix}_score"), version, indexes)?,
})
}
pub(super) fn compute(
&mut self,
models: &[&RatioPerBlockPercentiles],
spot: &impl ReadableVec<Height, Cents>,
indexer: &Indexer,
exit: &Exit,
) -> Result<()> {
let starting_height = indexer.safe_lengths().height;
let gather = |f: fn(&RatioPerBlockPercentiles) -> &_| -> Vec<_> {
models.iter().map(|m| f(m)).collect()
};
self.pct0_5.cents.height.compute_max_of_others(
starting_height,
&gather(|m| &m.pct0_5.price.cents.height),
exit,
)?;
self.pct1.cents.height.compute_max_of_others(
starting_height,
&gather(|m| &m.pct1.price.cents.height),
exit,
)?;
self.pct2.cents.height.compute_max_of_others(
starting_height,
&gather(|m| &m.pct2.price.cents.height),
exit,
)?;
self.pct5.cents.height.compute_max_of_others(
starting_height,
&gather(|m| &m.pct5.price.cents.height),
exit,
)?;
self.pct95.cents.height.compute_min_of_others(
starting_height,
&gather(|m| &m.pct95.price.cents.height),
exit,
)?;
self.pct98.cents.height.compute_min_of_others(
starting_height,
&gather(|m| &m.pct98.price.cents.height),
exit,
)?;
self.pct99.cents.height.compute_min_of_others(
starting_height,
&gather(|m| &m.pct99.price.cents.height),
exit,
)?;
self.pct99_5.cents.height.compute_min_of_others(
starting_height,
&gather(|m| &m.pct99_5.price.cents.height),
exit,
)?;
self.compute_index(spot, indexer, exit)?;
self.compute_score(models, spot, indexer, exit)?;
Ok(())
}
fn compute_index(
&mut self,
spot: &impl ReadableVec<Height, Cents>,
indexer: &Indexer,
exit: &Exit,
) -> Result<()> {
let starting_height = indexer.safe_lengths().height;
let bands = [
&self.pct0_5.cents.height,
&self.pct1.cents.height,
&self.pct2.cents.height,
&self.pct5.cents.height,
&self.pct95.cents.height,
&self.pct98.cents.height,
&self.pct99.cents.height,
&self.pct99_5.cents.height,
];
let dep_version: Version =
bands.iter().map(|b| b.version()).sum::<Version>() + spot.version();
self.index
.height
.validate_computed_version_or_reset(dep_version)?;
self.index.height.truncate_if_needed(starting_height)?;
self.index.height.repeat_until_complete(exit, |vec| {
let skip = vec.len();
let source_end = bands.iter().map(|b| b.len()).min().unwrap().min(spot.len());
let end = vec.batch_end(source_end);
if skip >= end {
return Ok(());
}
let spot_batch = spot.collect_range_at(skip, end);
let b: [Vec<Cents>; 8] = bands.each_ref().map(|v| v.collect_range_at(skip, end));
for j in 0..(end - skip) {
let price = spot_batch[j];
let mut score: i8 = 0;
if price < b[3][j] {
score -= 1;
}
if price < b[2][j] {
score -= 1;
}
if price < b[1][j] {
score -= 1;
}
if price < b[0][j] {
score -= 1;
}
if price > b[4][j] {
score += 1;
}
if price > b[5][j] {
score += 1;
}
if price > b[6][j] {
score += 1;
}
if price > b[7][j] {
score += 1;
}
vec.push(StoredI8::new(score));
}
Ok(())
})?;
Ok(())
}
fn compute_score(
&mut self,
models: &[&RatioPerBlockPercentiles],
spot: &impl ReadableVec<Height, Cents>,
indexer: &Indexer,
exit: &Exit,
) -> Result<()> {
let starting_height = indexer.safe_lengths().height;
let dep_version: Version = models
.iter()
.map(|p| {
p.pct0_5.price.cents.height.version()
+ p.pct1.price.cents.height.version()
+ p.pct2.price.cents.height.version()
+ p.pct5.price.cents.height.version()
+ p.pct95.price.cents.height.version()
+ p.pct98.price.cents.height.version()
+ p.pct99.price.cents.height.version()
+ p.pct99_5.price.cents.height.version()
})
.sum::<Version>()
+ spot.version();
self.score
.height
.validate_computed_version_or_reset(dep_version)?;
self.score.height.truncate_if_needed(starting_height)?;
self.score.height.repeat_until_complete(exit, |vec| {
let skip = vec.len();
let source_end = models
.iter()
.flat_map(|p| {
[
p.pct0_5.price.cents.height.len(),
p.pct1.price.cents.height.len(),
p.pct2.price.cents.height.len(),
p.pct5.price.cents.height.len(),
p.pct95.price.cents.height.len(),
p.pct98.price.cents.height.len(),
p.pct99.price.cents.height.len(),
p.pct99_5.price.cents.height.len(),
]
})
.min()
.unwrap()
.min(spot.len());
let end = vec.batch_end(source_end);
if skip >= end {
return Ok(());
}
let spot_batch = spot.collect_range_at(skip, end);
let bands: Vec<[Vec<Cents>; 8]> = models
.iter()
.map(|p| {
[
p.pct0_5.price.cents.height.collect_range_at(skip, end),
p.pct1.price.cents.height.collect_range_at(skip, end),
p.pct2.price.cents.height.collect_range_at(skip, end),
p.pct5.price.cents.height.collect_range_at(skip, end),
p.pct95.price.cents.height.collect_range_at(skip, end),
p.pct98.price.cents.height.collect_range_at(skip, end),
p.pct99.price.cents.height.collect_range_at(skip, end),
p.pct99_5.price.cents.height.collect_range_at(skip, end),
]
})
.collect();
for j in 0..(end - skip) {
let price = spot_batch[j];
let mut total: i8 = 0;
for model in &bands {
if price < model[3][j] {
total -= 1;
}
if price < model[2][j] {
total -= 1;
}
if price < model[1][j] {
total -= 1;
}
if price < model[0][j] {
total -= 1;
}
if price > model[4][j] {
total += 1;
}
if price > model[5][j] {
total += 1;
}
if price > model[6][j] {
total += 1;
}
if price > model[7][j] {
total += 1;
}
}
vec.push(StoredI8::new(total));
}
Ok(())
})?;
Ok(())
}
}