feat: Improve accounts list

The accounts lists are now shown per source and/or destination, and
include the name. Furthermore they are sorted alphabetically by name,
because that is how humans think.

README.md

@@ -46,6 +46,8 @@ cargo run -p banks2ff -- destinations
 
 # Inspect accounts
 cargo run -p banks2ff -- accounts list
+cargo run -p banks2ff -- accounts list gocardless  # Only GoCardless accounts
+cargo run -p banks2ff -- accounts list firefly     # Only Firefly III accounts
 cargo run -p banks2ff -- accounts status
 
 # Manage account links
@@ -64,7 +66,7 @@ Banks2FF uses a structured command-line interface with the following commands:
 - `sync <SOURCE> <DESTINATION>` - Synchronize transactions between source and destination
 - `sources` - List all available source types
 - `destinations` - List all available destination types
-- `accounts list` - List all discovered accounts
+- `accounts list [gocardless|firefly]` - List all discovered accounts (optionally filter by adapter type)
 - `accounts status` - Show sync status for all accounts
 - `accounts link` - Manage account links between sources and destinations
 - `transactions list <account_id>` - Show transaction information for a specific account

banks2ff/src/adapters/firefly/client.rs

@@ -1,5 +1,5 @@
 use crate::core::config::Config;
-use crate::core::models::{Account, BankTransaction};
+use crate::core::models::{Account, AccountSummary, BankTransaction};
 use crate::core::ports::{TransactionDestination, TransactionMatch};
 use anyhow::Result;
 use async_trait::async_trait;
@@ -242,4 +242,29 @@ impl TransactionDestination for FireflyAdapter {
 
         Ok(result)
     }
+
+    async fn list_accounts(&self) -> Result<Vec<AccountSummary>> {
+        let encryption = crate::core::encryption::Encryption::new(self.config.cache.key.clone());
+        let cache = crate::core::cache::AccountCache::load(
+            self.config.cache.directory.clone(),
+            encryption,
+        );
+
+        let mut summaries = Vec::new();
+
+        // Use cached account data for display
+        for (account_id, cached_account) in &cache.accounts {
+            if let crate::core::cache::CachedAccount::Firefly(ff_account) = cached_account {
+                let summary = AccountSummary {
+                    id: account_id.clone(),
+                    name: Some(ff_account.name.clone()),
+                    iban: ff_account.iban.clone().unwrap_or_else(|| "".to_string()),
+                    currency: ff_account.currency_code.clone().unwrap_or_else(|| "EUR".to_string()),
+                };
+                summaries.push(summary);
+            }
+        }
+
+        Ok(summaries)
+    }
 }

banks2ff/src/adapters/gocardless/client.rs

@@ -284,17 +284,20 @@ impl TransactionSource for GoCardlessAdapter {
         let cache = self.cache.lock().await;
         let mut summaries = Vec::new();
 
-        // Use cached account data for display
+        // Use cached account data for display - only GoCardless accounts
-        for account_id in cache.accounts.keys() {
+        for (account_id, cached_account) in &cache.accounts {
+            if let crate::core::cache::CachedAccount::GoCardless(_) = cached_account {
                 if let Some(account_data) = cache.get_account_data(account_id) {
                     let summary = AccountSummary {
                         id: account_id.clone(),
+                        name: account_data.display_name(),
                         iban: account_data.iban().unwrap_or("").to_string(),
                         currency: "EUR".to_string(), // GoCardless primarily uses EUR
                     };
                     summaries.push(summary);
                 }
             }
+        }
 
         Ok(summaries)
     }

banks2ff/src/cli/formatters.rs

@@ -29,9 +29,11 @@ impl Formattable for AccountSummary {
     fn to_table(&self) -> Table {
         let mut table = Table::new();
         table.load_preset(UTF8_FULL);
-        table.set_header(vec!["ID", "IBAN", "Currency"]);
+        table.set_header(vec!["ID", "Name", "IBAN", "Currency"]);
+        let name = self.name.as_deref().unwrap_or("");
         table.add_row(vec![
             self.id.clone(),
+            name.to_string(),
             mask_iban(&self.iban),
             self.currency.clone(),
         ]);

banks2ff/src/core/models.rs

@@ -128,6 +128,7 @@ mod tests {
 #[derive(Clone, Debug, Serialize)]
 pub struct AccountSummary {
     pub id: String,
+    pub name: Option<String>,
     pub iban: String,
     pub currency: String,
 }

banks2ff/src/core/ports.rs

@@ -95,6 +95,9 @@ pub trait TransactionDestination: Send + Sync {
 
     /// Account discovery for linking
     async fn discover_accounts(&self) -> Result<Vec<Account>>;
+
+    /// Inspection methods for CLI
+    async fn list_accounts(&self) -> Result<Vec<AccountSummary>>;
 }
 
 // Blanket implementation for references
@@ -125,4 +128,8 @@ impl<T: TransactionDestination> TransactionDestination for &T {
     async fn discover_accounts(&self) -> Result<Vec<Account>> {
         (**self).discover_accounts().await
     }
+
+    async fn list_accounts(&self) -> Result<Vec<AccountSummary>> {
+        (**self).list_accounts().await
+    }
 }

banks2ff/src/main.rs

@@ -11,12 +11,13 @@ use crate::core::adapters::{
 use crate::core::config::Config;
 use crate::core::encryption::Encryption;
 use crate::core::linking::LinkStore;
-use crate::core::models::AccountData;
+use crate::core::models::{AccountData, AccountSummary};
-use crate::core::ports::TransactionSource;
+use crate::core::ports::{TransactionDestination, TransactionSource};
 use crate::core::sync::run_sync;
 use chrono::NaiveDate;
 use clap::{Parser, Subcommand};
-use tracing::{error, info};
+use comfy_table::{presets::UTF8_FULL, Table};
+use tracing::{error, info, warn};
 
 #[derive(Parser, Debug)]
 #[command(author, version, about, long_about = None)]
@@ -104,7 +105,10 @@ enum AccountCommands {
         subcommand: LinkCommands,
     },
     /// List all accounts
-    List,
+    List {
+        /// Filter by adapter type: 'gocardless' or 'firefly', or omit for all
+        filter: Option<String>,
+    },
     /// Show account status
     Status,
 }
@@ -409,12 +413,76 @@ async fn handle_accounts(config: Config, subcommand: AccountCommands) -> anyhow:
                 }
             }
         }
-        AccountCommands::List => {
+        AccountCommands::List { filter } => {
-            let accounts = context.source.list_accounts().await?;
+            // Validate filter parameter
-            if accounts.is_empty() {
+            let show_gocardless = match filter.as_deref() {
+                Some("gocardless") => true,
+                Some("firefly") => false,
+                None => true, // Show both by default
+                Some(invalid) => {
+                    anyhow::bail!("Invalid filter '{}'. Use 'gocardless', 'firefly', or omit for all.", invalid);
+                }
+            };
+            let show_firefly = match filter.as_deref() {
+                Some("gocardless") => false,
+                Some("firefly") => true,
+                None => true, // Show both by default
+                Some(_) => unreachable!(), // Already validated above
+            };
+
+            // Get GoCardless accounts if needed
+            let gocardless_accounts = if show_gocardless {
+                match context.source.list_accounts().await {
+                    Ok(mut accounts) => {
+                        accounts.sort_by(|a, b| {
+                            a.name.as_deref().unwrap_or("").cmp(b.name.as_deref().unwrap_or(""))
+                        });
+                        accounts
+                    }
+                    Err(e) => {
+                        warn!("Failed to list GoCardless accounts: {}", e);
+                        Vec::new()
+                    }
+                }
+            } else {
+                Vec::new()
+            };
+
+            // Get Firefly III accounts if needed
+            let firefly_accounts = if show_firefly {
+                match context.destination.list_accounts().await {
+                    Ok(mut accounts) => {
+                        accounts.sort_by(|a, b| {
+                            a.name.as_deref().unwrap_or("").cmp(b.name.as_deref().unwrap_or(""))
+                        });
+                        accounts
+                    }
+                    Err(e) => {
+                        warn!("Failed to list Firefly III accounts: {}", e);
+                        Vec::new()
+                    }
+                }
+            } else {
+                Vec::new()
+            };
+
+            if gocardless_accounts.is_empty() && firefly_accounts.is_empty() {
                 println!("No accounts found. Run 'banks2ff sync gocardless firefly' first to discover and cache account data.");
             } else {
-                print_list_output(accounts, &format);
+                // Print GoCardless accounts
+                if !gocardless_accounts.is_empty() {
+                    println!("GoCardless Accounts ({}):", gocardless_accounts.len());
+                    print_accounts_table(&gocardless_accounts);
+                }
+
+                // Print Firefly III accounts
+                if !firefly_accounts.is_empty() {
+                    if !gocardless_accounts.is_empty() {
+                        println!(); // Add spacing between tables
+                    }
+                    println!("Firefly III Accounts ({}):", firefly_accounts.len());
+                    print_accounts_table(&firefly_accounts);
+                }
             }
         }
         AccountCommands::Status => {
@@ -429,6 +497,32 @@ async fn handle_accounts(config: Config, subcommand: AccountCommands) -> anyhow:
     Ok(())
 }
 
+fn print_accounts_table(accounts: &[AccountSummary]) {
+    let mut table = Table::new();
+    table.load_preset(UTF8_FULL);
+    table.set_header(vec!["ID", "Name", "IBAN", "Currency"]);
+
+    for account in accounts {
+        let name = account.name.as_deref().unwrap_or("");
+        table.add_row(vec![
+            account.id.clone(),
+            name.to_string(),
+            mask_iban(&account.iban),
+            account.currency.clone(),
+        ]);
+    }
+
+    println!("{}", table);
+}
+
+fn mask_iban(iban: &str) -> String {
+    if iban.len() <= 4 {
+        iban.to_string()
+    } else {
+        format!("{}{}", "*".repeat(iban.len() - 4), &iban[iban.len() - 4..])
+    }
+}
+
 async fn handle_transactions(
     config: Config,
     subcommand: TransactionCommands,