class CommandLineClient(object):
def __init__(self):
self._storage = FilesystemNoteStorage('./notes')
def run(self, argv):
cmd = argv[1] if len(argv) > 1 else ''
if cmd == 'list':
self.list()
elif cmd == 'view':
self.view(argv[2])
else:
self.usage()
def usage(self):
print('''Available commands:
list List available notes
view ID View note starting with given ID
''')
def list(self):
notes = self._storage.list()
for note in notes:
print('* %s: %s (%d bytes)' % (note.id, note.title, len(note.text)))
print('%d notes in total' % len(notes))
def view(self, note_id):
note = self._find_by_id(note_id)
print( '''
Id: %(id)s
Title: %(title)s
Text:
%(text)s''' % {
'id': note.id,
'title': note.title,
'text': note.text,
}).strip()
def _find_by_id(self, note_id):
matching_notes = [note
for note in self._storage.list()
if note.id.startswith(note_id)]
if len(matching_notes) > 1:
raise Exception('id is ambiguous')
elif len(matching_notes) == 0:
raise Exception('id doesn‘t exist')
return matching_notes[0]
