def start(self, no_libs_check=False):
"""
Main application loop
"""
# Resize the console window
SimpleTUI.resize_console(30, 120)
# Load all the modules
self.load_all_modules(no_libs_check=no_libs_check)
# Loop
exit = False
while(not exit):
SimpleTUI.set_console_title("EasyCloud")
platform = self.menu()
manager = self.get_instance(platform.manager_class)
try:
close = False
while(not close):
action = manager.menu()
# if action == 0: # Ignore this value
# pass
if action == 1: # Close current manager menu
close = True
elif action == 2: # Close this application
close = True
exit = True
except Exception as e:
SimpleTUI.exception_dialog(e)
self.close(0)
def get_instance(self, manager_class):
"""
Returns an existing instance of the manager_class provided in input
if previously instantiated or creates a new instance.
Args:
manager_class (<manager_class>): class of the module manager
Returns:
<manager_class_instance>: an instance of <manager_class>
"""
for _instance in self.loaded_instances:
if isinstance(_instance, manager_class):
return _instance
try:
_new_instance = manager_class()
self.loaded_instances.append(_new_instance)
return _new_instance
except Exception as e:
SimpleTUI.exception_dialog(e)
return None
def menu(self):
"""
Prints the modules menu
"""
global kill
while True:
# Header creation
menu_header = "******************** EasyCloud ********************"
# Subheader creation
disclaimer = "\033[34;1mThis is a proof-of-concept build, not suitable\nfor production use.\033[0m\n"
debug_status = None
hffr_status = None
if "LIBCLOUD_DEBUG" in environ:
debug_status = "\033[93mLibcloud Debug Mode ON\033[0m"
else:
debug_status = "\033[90mLibcloud Debug Mode OFF\033[0m"
if "LIBCLOUD_DEBUG_PRETTY_PRINT_RESPONSE" in environ and environ["LIBCLOUD_DEBUG_PRETTY_PRINT_RESPONSE"] == "1":
hffr_status = "\033[93mLibcloud Human friendly formatted response ON\033[0m"
else:
hffr_status = "\033[90mLibcloud Human friendly formatted response OFF\033[0m"
menu_subheader = [disclaimer, debug_status, hffr_status]
# Menu items creation
menu_items = []
for module in self.loaded_modules:
menu_items.append(module.platform_name)
menu_items.append("Close application")
# Menu print
choice = SimpleTUI.print_menu(menu_header, menu_items,
subheader_items=menu_subheader,
custom_question="Select a platform")
try:
if(choice >= 1 and choice <= len(self.loaded_modules)):
return self.loaded_modules[choice - 1] # Load a module
elif(choice == len(self.loaded_modules) + 1): # Close application
self.close(0)
else:
SimpleTUI.msg_dialog("Error", "Unimplemented functionality", SimpleTUI.DIALOG_ERROR)
except Exception as e:
SimpleTUI.exception_dialog(e)
