1 files changed, 51 insertions, 0 deletions
diff --git a/src/embedders/mod.rs b/src/embedders/mod.rs
new file mode 100644
index 0000000..353222b
--- /dev/null
+++ b/src/embedders/mod.rs
@@ -0,0 +1,51 @@
+pub mod ai;
+pub mod pure;
+pub(crate) use ai::*;
+pub(crate) use pure::*;
+
+use anyhow::Result;
+use indicatif::{ParallelProgressIterator, ProgressStyle};
+use rayon::prelude::*;
+use serde::{Deserialize, Serialize};
+use std::path::{Path, PathBuf};
+
+pub trait MetricElem: Send + Sync + 'static + Serialize + for<'a> Deserialize<'a> {
+    fn dist(&self, _: &Self) -> f64;
+}
+
+impl MetricElem for f64 {
+    fn dist(&self, b: &f64) -> f64 {
+        (self - b).abs()
+    }
+}
+
+pub trait EmbedderT: Send + Sync {
+    type Embedding: MetricElem;
+    const NAME: &'static str;
+
+    fn embed(&self, _: &Path) -> Result<Self::Embedding>;
+}
+
+pub trait BatchEmbedder: Send + Sync {
+    type Embedding: MetricElem;
+    const NAME: &'static str;
+
+    fn embeds(&mut self, _: &[PathBuf]) -> Result<Vec<Self::Embedding>>;
+}
+
+impl<T: EmbedderT> BatchEmbedder for T {
+    type Embedding = T::Embedding;
+    const NAME: &'static str = T::NAME;
+
+    fn embeds(&mut self, paths: &[PathBuf]) -> Result<Vec<Self::Embedding>> {
+        let st =
+            ProgressStyle::with_template("{bar:20.cyan/blue} {pos}/{len} Embedding images...")?;
+        paths
+            .par_iter()
+            .progress_with_style(st)
+            .map(|p| self.embed(p))
+            .collect::<Vec<_>>()
+            .into_iter()
+            .try_collect()
+    }
+}