1 files changed, 97 insertions, 0 deletions
diff --git a/gen/gen_renderers_file.rs b/gen/gen_renderers_file.rs
new file mode 100644
index 0000000..497d258
--- /dev/null
+++ b/gen/gen_renderers_file.rs
@@ -0,0 +1,97 @@
+use std::path::PathBuf;
+
+use crate::r#gen::constants::{
+    OVERRIDE_RENDERER_DISPATCHER, OVERRIDE_RENDERER_DISPATCHER_TEMPLATE, REGISTRY_TOML,
+    TEMPLATE_END, TEMPLATE_START,
+};
+
+/// Generate renderer list file from Registry.toml configuration
+pub async fn generate_renderers_file(repo_root: &PathBuf) {
+    let template_path = repo_root.join(OVERRIDE_RENDERER_DISPATCHER_TEMPLATE);
+    let output_path = repo_root.join(OVERRIDE_RENDERER_DISPATCHER);
+    let config_path = repo_root.join(REGISTRY_TOML);
+
+    // Read the template
+    let template = tokio::fs::read_to_string(&template_path).await.unwrap();
+
+    // Read and parse the TOML configuration
+    let config_content = tokio::fs::read_to_string(&config_path).await.unwrap();
+    let config: toml::Value = toml::from_str(&config_content).unwrap();
+
+    // Collect all renderer configurations
+    let mut renderers = Vec::new();
+
+    let Some(table) = config.as_table() else {
+        return;
+    };
+    let Some(renderer_table) = table.get("renderer") else {
+        return;
+    };
+    let Some(renderer_table) = renderer_table.as_table() else {
+        return;
+    };
+
+    for (_, renderer_value) in renderer_table {
+        let Some(renderer_config) = renderer_value.as_table() else {
+            continue;
+        };
+        let Some(name) = renderer_config.get("name").and_then(|v| v.as_str()) else {
+            continue;
+        };
+        let Some(renderer_type) = renderer_config.get("type").and_then(|v| v.as_str()) else {
+            continue;
+        };
+
+        renderers.push((name.to_string(), renderer_type.to_string()));
+    }
+
+    // Extract the template section from the template content
+    const MATCH_MARKER: &str = "// MATCH";
+
+    let template_start_index = template
+        .find(TEMPLATE_START)
+        .ok_or("Template start marker not found")
+        .unwrap();
+    let template_end_index = template
+        .find(TEMPLATE_END)
+        .ok_or("Template end marker not found")
+        .unwrap();
+
+    let template_slice = &template[template_start_index..template_end_index + TEMPLATE_END.len()];
+    let renderer_template = template_slice
+        .trim_start_matches(TEMPLATE_START)
+        .trim_end_matches(TEMPLATE_END)
+        .trim_matches('\n');
+
+    // Generate the match arms for each renderer
+    let match_arms: String = renderers
+        .iter()
+        .map(|(name, renderer_type)| {
+            renderer_template
+                .replace("<<NAME>>", name)
+                .replace("RendererType", renderer_type)
+                .trim_matches('\n')
+                .to_string()
+        })
+        .collect::<Vec<String>>()
+        .join("\n");
+
+    // Replace the template section with the generated match arms
+    let final_content = template
+        .replace(renderer_template, "")
+        .replace(TEMPLATE_START, "")
+        .replace(TEMPLATE_END, "")
+        .replace(MATCH_MARKER, &match_arms)
+        .lines()
+        .filter(|line| !line.trim().is_empty())
+        .collect::<Vec<_>>()
+        .join("\n");
+
+    // Write the generated code
+    tokio::fs::write(output_path, final_content).await.unwrap();
+
+    println!(
+        "Generated renderer list file with {} renderers",
+        renderers.len()
+    );
+}