0ptr/nullptr/store.py

74 lines
1.8 KiB
Python

from nullptr.models.base import Base
from nullptr.models.waypoint import Waypoint
from nullptr.models.sector import Sector
from nullptr.models.system import System
from nullptr.models.agent import Agent
from os.path import isfile, dirname, isdir
import os
import json
from .util import *
class Store:
def __init__(self, data_dir):
self.data_dir = data_dir
self.data = {}
def path(self, obj):
return os.path.join(self.data_dir, obj.path())
def load(self, obj):
path = self.path(obj)
if not isfile(path):
return obj
with open(path) as f:
data = json.load(f)
data['store'] = self
data['dirty'] = False
obj.__dict__ = data
def store(self, obj):
path = self.path(obj)
path_dir = dirname(path)
data = obj.dict()
if not isdir(path_dir):
os.makedirs(path_dir, exist_ok=True)
with open(path, 'w') as f:
json.dump(data, f, indent=2)
obj.dirty = False
def get(self, typ, symbol):
obj = typ(symbol, self)
self.load(obj)
self.data[symbol] = obj
return obj
def update(self, typ, symbol, data):
obj = self.get(typ, symbol)
obj.update(data)
return obj
def update_list(self, typ, lst):
return [self.update(typ, mg(d, 'symbol'), d) for d in lst]
def all(self, path, typ):
if hasattr(path, 'path'):
path = path.path()
path = os.path.join(self.data_dir, path)
if not isdir(path):
return
ext = '.' + typ.ext()
for f in os.listdir(path):
fil = os.path.join(path, f)
if not isfile(fil):
continue
if not fil.endswith(ext):
continue
symbol = f[:-len(ext)]
yield self.get(typ, symbol)
def flush(self):
for obj in self.data.values():
if obj.dirty:
self.store(obj)