Add resizing for work card images

2 files changed, 26 insertions, 0 deletions

diff --git a/src/images_processing.rs b/src/images_processing.rs
new file mode 100644
index 0000000..483d44c
--- /dev/null
+++ b/src/images_processing.rs
@@ -0,0 +1,24 @@
+use anyhow::{Context, Result};
+
+// resize all work card images to 250 x 250 px
+pub fn resize_workcard_images() -> Result<Vec<()>> {
+    let mut result: Vec<()> = Vec::new();
+    for image_file in std::fs::read_dir("images/workcardimages")? {
+        let path = image_file?.path();
+        let filename = if let Some(name) = &path.to_str() {
+            Ok(format!("docs/{}", name))
+        } else {
+            Err(anyhow::Error::msg(""))
+        };
+
+        let img = image::open(&path)?;
+        let processed_image = img.resize(250, 250, image::imageops::FilterType::Triangle);
+        let mut output_file = std::fs::File::create(filename?)?;
+        result.push(
+            processed_image
+                .write_to(&mut output_file, image::ImageFormat::Png)
+                .with_context(|| format!("Failed to resize work card image from {:?}", path))?,
+        );
+    }
+    Ok(result)
+}
diff --git a/src/main.rs b/src/main.rs
index 942b621..39d4b9d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,9 +3,11 @@ use tera::{Context, Tera};
 
 use crate::works::Works;
 
+mod images_processing;
 mod works;
 
 fn main() -> Result<()> {
+    images_processing::resize_workcard_images()?;
     // new tera instance
     let tera = Tera::new("templates/**/*.html")?;