Render UserCountCharts for all groups.

source/charts/mod.rs

@@ -23,8 +23,12 @@ pub struct UserCountChart {
 
 impl UserCountChart {
   /// Render the chart and write it to file.
-  pub async fn render(&self, parent: &PathBuf, group_name: &str) -> Result<()> {
-    let parent = parent.join("charts");
+  pub async fn render(
+    &self,
+    parent: &PathBuf,
+    group_name: &str,
+  ) -> Result<PathBuf> {
+    let parent = parent.join("charts/user-count");
     create_dir_all(&parent).await?;
 
     let (mut datapoints, mut min_count, mut max_count) = (vec![], i64::MAX, 0);
@@ -45,7 +49,8 @@ impl UserCountChart {
     let min_count = min_count - 10;
     let max_count = max_count + 10;
 
-    let path = parent.join("user-count.svg");
+    let path = parent.join(format!("{group_name}.svg"));
+    let output_path = path.clone();
     let chart_root = SVGBackend::new(&path, (1280, 720)).into_drawing_area();
     chart_root.fill(&BACKGROUND_2)?;
 
@@ -112,6 +117,6 @@ impl UserCountChart {
       },
     ))?;
 
-    Ok(())
+    Ok(output_path)
   }
 }

source/cli/run.rs

@@ -1,8 +1,11 @@
 //! All logic for running the CLI.
 
 use {
-  async_std::fs::create_dir_all, clap::Parser, color_eyre::Result,
-  sea_orm_migration::MigratorTrait, tracing::info,
+  async_std::fs::{copy, create_dir_all},
+  clap::Parser,
+  color_eyre::Result,
+  sea_orm_migration::MigratorTrait,
+  tracing::info,
 };
 
 use crate::{
@@ -106,6 +109,16 @@ pub async fn run() -> Result<()> {
           };
 
         create_dir_all(&output).await?;
+
+        for group in &groups {
+          UserCountChart {
+            groups: GroupDataModel::get_n_most_recent(&db, 30, &group.name)
+              .await?,
+          }
+          .render(&output, &group.name)
+          .await?;
+        }
+
         HomeTemplate::new(
           groups,
           user_count_group.as_ref().map(|group| group.subscribers),
@@ -117,11 +130,8 @@ pub async fn run() -> Result<()> {
         write_assets(&output).await?;
 
         if let Some(group) = user_count_group {
-          let groups =
-            GroupDataModel::get_n_most_recent(&db, 30, &group.name).await?;
-          UserCountChart { groups }
-            .render(&output, &group.name)
-            .await?;
+          let path = output.join(&format!("charts/user-count/{}", &group.name));
+          copy(path, output.join("charts/main-user-count.svg")).await?;
         }
       }
     },

source/templates/index.html

@@ -19,7 +19,7 @@
     registered users on Tildes.
   </p>
 
-  <img class="chart" src="/charts/user-count.svg" alt="User Count Chart">
+  <img class="chart" src="/charts/main-user-count.svg" alt="User Count Chart">
 
   <table>
     <thead>