✨ feat(cli): implement rule execution logic

- add logic to iterate through labels and execute associated rules
- retrieve rules based on label and perform actions like trashing/deleting messages
- log warnings for missing rules or invalid actions

src/cli/run_cli.rs

@@ -1,11 +1,32 @@
 use clap::Parser;
-use cull_gmail::Result;
+use cull_gmail::{Config, EolAction, Result};
 
 #[derive(Debug, Parser)]
 pub struct RunCli {}
 
 impl RunCli {
-    pub async fn run(&self, _credential: &str) -> Result<()> {
+    pub async fn run(&self, config: Config) -> Result<()> {
+        let rules = config.get_rules_by_label();
+
+        for label in config.labels() {
+            let Some(rule) = rules.get(&label) else {
+                log::warn!("no rule found for label `{label}`");
+                continue;
+            };
+
+            log::info!("Executing rule `#{}` for label `{label}`", rule.describe());
+
+            let Some(action) = rule.action() else {
+                log::warn!("no valid action specified for rule #{}", rule.id());
+                continue;
+            };
+
+            match action {
+                EolAction::Trash => log::info!("trashing older messages"),
+                EolAction::Delete => log::info!("deleting older messages"),
+            }
+        }
+
         Ok(())
     }
 }