Ukpai/delete chain

ocular_cli/src/commands/chains.rs

@@ -13,6 +13,7 @@ use clap::Parser;
 
 use self::list::ListCmd;
 use self::show::ShowCmd;
+use self::delete::DeleteCmd;
 /// `start` subcommand
 ///
 /// The `Parser` proc macro generates an option parser based on the struct
@@ -24,6 +25,7 @@ use self::show::ShowCmd;
 pub enum ChainsCmd {
     Show(ShowCmd),
     List(ListCmd),
+    Delete(DeleteCmd),
 }
 
 impl config::Override<OcularCliConfig> for ChainsCmd {

ocular_cli/src/commands/chains/delete.rs

@@ -1 +1,62 @@
+use crate::{config, prelude::*};
+use abscissa_core::{Command, Runnable};
+use clap::Parser;
+use ocular::chain::info::ChainInfo;
+use serde::{Deserialize, Serialize};
+use std::{collections::HashMap, fs, io::Write, path::Path};
 
+#[derive(Command, Debug, Parser)]
+pub struct DeleteCmd {
+    name: String,
+}
+
+#[derive(Deserialize)]
+struct Chains {
+    chains: Vec<ChainInfo>,
+}
+
+impl Runnable for DeleteCmd {
+    fn run(&self) {
+        let path = config::get_config_path();
+        let config_file = Path::new(path.to_str().unwrap());
+
+        let chain_list = fs::read_to_string(config_file).unwrap_or_else(|err| {
+            status_err!("Can't fetch config file: {}", err);
+            std::process::exit(1);
+        });
+
+        let data: Chains = toml::from_str(&chain_list).unwrap_or_else(|err| {
+            status_err!("Can't fetch list of local chains:{}", err);
+            std::process::exit(1);
+        });
+
+        let mut info = HashMap::new();
+
+        for chain_info in data.chains {
+            info.insert(chain_info.chain_name.clone(), chain_info);
+        }
+
+        let chains = self.name.clone();
+
+        if let Some(chain_details) = info.get(chains.as_str()) {
+            // Remove the map content from file
+
+            info.remove_entry(&chain_details.chain_name.clone());
+
+            for values in info.values() {
+                let config_content = toml::to_string(values).unwrap_or_else(|err| {
+                    status_err!("{}", err);
+                    std::process::exit(1);
+                });
+
+                fs::write(config_file, config_content);
+            }
+        } else {
+            println!("can't find chain in local registry, run the add command to add chain")
+        }
+
+        // Use hashmap to map chain name and chain info
+
+        // Print message that delete was successful else, print error
+    }
+}