added ls function

flist.v

@@ -1,6 +1,7 @@
 import os
 import net.http
 import term
+import json
 
 const (
     token_file       = os.join_path(os.home_dir(), '.config', 'tfhubtoken')
@@ -11,6 +12,18 @@ const (
     }
 )
 
+struct FlistItem {
+    name string
+}
+
+struct Payload {
+    username string
+}
+
+struct Response {
+    payload Payload
+}
+
 fn error_message(msg string) {
     println(term.bold(term.red('Error: ')) + msg)
     println(term.yellow('Run \'flist help\' for usage information.'))
@@ -146,7 +159,6 @@ fn push(tag string) {
         )
     }
 
-    // Add Content-Type header
     config.header.add_custom('Content-Type', 'application/x-www-form-urlencoded') or {
         eprintln('Add custom failed: $err')
         exit(1)
@@ -166,7 +178,6 @@ fn push(tag string) {
         eprintln(response.body)
         exit(1)
     }
-
 }
 
 fn delete(flist_name string) {
@@ -221,6 +232,84 @@ fn rename(flist_name string, new_flist_name string) {
     }
 }
 
+fn get_hub_username(tfhub_token string) ?string {
+    url := 'https://hub.grid.tf/api/flist/me'
+
+    config := http.FetchConfig{
+        url: url
+        method: .get
+        header: http.new_header(
+            key: .authorization
+            value: 'bearer $tfhub_token'
+        )
+    }
+
+    response := http.fetch(config) or {
+        error_message('Failed to fetch hub username: $err')
+        return none
+    }
+
+    if response.status_code != 200 {
+        error_message('Failed to fetch hub username. Status code: $response.status_code')
+        return none
+    }
+
+    parsed_response := json.decode(Response, response.body) or {
+        error_message('Failed to parse JSON response: $err')
+        return none
+    }
+
+    if parsed_response.payload.username != '' {
+        return parsed_response.payload.username
+    }
+
+    error_message('Username not found in response')
+    return none
+}
+
+fn ls() {
+    tfhub_token := os.read_file(token_file) or {
+        error_message('No token found. Please run \'flist login\' first.')
+        exit(1)
+    }
+
+    hub_user := get_hub_username(tfhub_token) or {
+        error_message('Failed to get hub username')
+        exit(1)
+    }
+
+    url := 'https://hub.grid.tf/api/flist/$hub_user'
+
+    config := http.FetchConfig{
+        url: url
+        method: .get
+        header: http.new_header(
+            key: .authorization
+            value: 'bearer $tfhub_token'
+        )
+    }
+
+    response := http.fetch(config) or {
+        error_message('Failed to fetch data: $err')
+        exit(1)
+    }
+
+    if response.status_code != 200 {
+        error_message('Failed to fetch data. Status code: $response.status_code')
+        exit(1)
+    }
+
+    data := json.decode([]FlistItem, response.body) or {
+        error_message('Failed to parse JSON: $err')
+        exit(1)
+    }
+
+    println('Flists for user $hub_user:')
+    for item in data {
+        println(item.name)
+    }
+}
+
 fn help() {
     println(term.bold(term.green('\n Welcome to the Flist CLI!')))
     println('This tool turns Dockerfiles and Docker images directly into Flist on the TF Flist Hub, passing by the Docker Hub.\n')
@@ -232,6 +321,7 @@ fn help() {
     println(term.blue('  push      ') + '- Build and push a Docker image to Docker Hub, then convert and push it as an flist to Flist Hub')
     println(term.blue('  delete    ') + '- Delete an flist from Flist Hub')
     println(term.blue('  rename    ') + '- Rename an flist in Flist Hub')
+    println(term.blue('  ls        ') + '- List all flists of the current user')
     println(term.blue('  help      ') + '- Display this help message\n')
     println(term.bold('Usage:'))
     println('  flist install')
@@ -241,6 +331,7 @@ fn help() {
     println('  flist push <image>:<tag>')
     println('  flist delete <flist_name>')
     println('  flist rename <flist_name> <new_flist_name>')
+    println('  flist ls')
     println('  flist help')
 }
 
@@ -279,6 +370,7 @@ fn main() {
                 exit(1)
             }
         }
+        'ls' { ls() }
         'help' { help() }
         else {
             error_message('Unknown command: ' + os.args[1])