feat(config): implement config init/get/set/path commands

src/cli/config.rs

@@ -1,5 +1,8 @@
 use clap::{Args, Subcommand};
 
+use crate::config::{config_path, ensure_default_config, get_config_value, set_config_value};
+use crate::error::IdxError;
+
 #[derive(Debug, Args)]
 pub struct ConfigCmd {
     #[command(subcommand)]
@@ -13,3 +16,25 @@ pub enum ConfigSubcommand {
     Set { key: String, value: String },
     Path,
 }
+
+pub fn handle(cmd: &ConfigCmd) -> Result<(), IdxError> {
+    match &cmd.command {
+        ConfigSubcommand::Init => {
+            let path = ensure_default_config()?;
+            println!("{}", path.display());
+        }
+        ConfigSubcommand::Get { key } => {
+            let value = get_config_value(key)?
+                .ok_or_else(|| IdxError::ConfigError(format!("key not found: {key}")))?;
+            println!("{value}");
+        }
+        ConfigSubcommand::Set { key, value } => {
+            set_config_value(key, value)?;
+            println!("ok");
+        }
+        ConfigSubcommand::Path => {
+            println!("{}", config_path()?.display());
+        }
+    }
+    Ok(())
+}