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file_tagger.py
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file_tagger.py
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import os
import sporklib
import json
import ast
from abc import abstractmethod
class FileTagger(object):
CWD = sporklib.normalize_path(os.getcwd())
DEFAULT_RECORD_TEMPLATE = {"name":"", "ext":""}
DEFAULT_SETTINGS_PATH = CWD + "/settings.json"
DEFAULT_CONTENT_DIRECTORY = CWD + "/content"
DEFAULT_AVAIL_ITEMS_PATH = CWD + "/items.json"
DEFAULT_RECORDS_PATH = CWD + "/records.json"
RECORD_TEMPLATE = DEFAULT_RECORD_TEMPLATE
SETTINGS_PATH = DEFAULT_SETTINGS_PATH
CONTENT_DIRECTORY = DEFAULT_CONTENT_DIRECTORY
AVAIL_ITEMS_PATH = DEFAULT_AVAIL_ITEMS_PATH
RECORDS_PATH = DEFAULT_RECORDS_PATH
RECORDS = {}
AVAIL_ITEMS = {}
def __init__(self):
#pdb.set_trace()
self.load_settings()
self.load_custom_settings()
self.load_records()
self._vet_recorded_items_to_avail()
self._load_avail_items()
'''
init and admin
'''
def save_changes(self):
data_dict = {}
if self.SETTINGS_PATH != self.DEFAULT_SETTINGS_PATH:
data_dict["settingsPath"] = self.SETTINGS_PATH
if self.CONTENT_DIRECTORY != self.DEFAULT_CONTENT_DIRECTORY:
data_dict["contentDirectory"] = self.CONTENT_DIRECTORY
if self.RECORD_TEMPLATE != self.DEFAULT_RECORD_TEMPLATE:
data_dict["recordSchema"] = self.RECORD_TEMPLATE
if self.AVAIL_ITEMS_PATH != self.DEFAULT_AVAIL_ITEMS_PATH:
data_dict["availItemsPath"] = self.AVAIL_ITEMS_PATH
if self.RECORDS_PATH != self.DEFAULT_RECORDS_PATH:
data_dict["recordsPath"] = self.RECORDS_PATH
with open(self.SETTINGS_PATH, "w") as f:
json.dump(data_dict, f, ensure_ascii=True)
with open(self.RECORDS_PATH, "w") as f:
json.dump(self.get_records(), f, ensure_ascii=True)
with open(self.AVAIL_ITEMS_PATH, "w") as f:
json.dump(self.AVAIL_ITEMS, f, ensure_ascii=True)
def _load_avail_items(self, data_path=None):
data_path = data_path or self.DEFAULT_AVAIL_ITEMS_PATH
avail_items = {}
if os.path.isfile(data_path):
with open(data_path) as f:
self.AVAIL_ITEMS = sporklib.byteify(json.loads(f.read(), "ascii"))
else:
raise IOError("Did not find items data file at: %s" % data_file)
def _load_setting(self, setting, data):
try:
return data[setting]
except KeyError:
return None
def load_settings(self, data_path=None):
data_path = data_path or self.SETTINGS_PATH
if os.path.isfile(data_path):
f = open(data_path, "r")
data = sporklib.byteify(json.loads(f.read(), "ascii"))
try:
self.load_custom_settings_path(sporklib.normalize_path(data["settingsPath"]))
self.load_settings()
return None #end loop here
except (IOError,KeyError):
pass
try:
self.RECORD_TEMPLATE = data["recordSchema"]
except KeyError:
pass
try:
self.CONTENT_DIRECTORY = sporklib.normalize_path(data["contentDirectory"])
except KeyError:
pass
try:
self.RECORDS_PATH = data["recordsPath"]
except KeyError:
pass
try:
self.AVAIL_ITEMS_PATH = data["availItemsPath"]
except KeyError:
pass
#you finished working here, you need to institute an abstract load_settings method that _load_settings will take
def load_records(self, data_path=None):
data_path = data_path or self.DEFAULT_RECORDS_PATH
if os.path.isfile(data_path):
with open(data_path, "r") as f:
data = sporklib.byteify(json.loads(f.read(), "ascii"))
self.RECORDS = data
else:
raise IOError("Did not find records file at: %s" % data_path)
@abstractmethod
def load_custom_settings(self, data_path=None):
'''
Abstract method.
'''
return
def create_new_record(self, name, ext):
records = self.get_records()
new_record = self.get_record_template()
new_record["name"] = name
new_record["ext"] = ext
return new_record
def add_content_to_records(self, data_path=None):
data_path = data_path or self.CONTENT_DIRECTORY
content_files = sporklib.list_files(data_path, True, False)
record_keys = self.get_records().keys()
for file in content_files:
fn = os.path.basename(file).split(".")
name = fn[0]
ext = fn[1]
if name not in record_keys:
self.RECORDS[name] = self.create_new_record(name, ext)
def _vet_recorded_items_to_avail(self, records=None, avail_items=None, add_items=False):
for item_key in self.AVAIL_ITEMS.keys():
avails = self.get_avail_items(item_key)
records = records or self.RECORDS
avail_items = avail_items or avails
avail_items = set(avail_items)
for key in records.keys():
new_items = set(records[key][item_key]) - avail_items
if len(new_items) > 0:
for item in list(new_items):
if add_items:
self._add_item_to_avail(item)
else:
self._remove_item_from_record(item_key, item, records[key])
def get_avail_items(self, item_key):
return self.AVAIL_ITEMS[item_key]
@abstractmethod
def _validate_record(self, item_key, record):
avails = self.get_avail_items(item_key)
avail_items = self.get_avail_items(item_key)
if record.keys() != avail_items.keys():
avails = self.get_avail_items(item_key)
return False
if type(record["name"]).name != "str":
return False
if type(record["ext"]).name != "str":
return False
return True
def _strip_unavail_items(self, item_key, items):
avails = self.get_avail_items(item_key)
stripped_items = []
for item in items:
if self.get_is_item_avail(item_key, item):
stripped_items.append(item)
return stripped_items
def _print_avail_items(self, item_key, title=""):
sporklib.print_list_of_items(self.get_avail_items(item_key), title)
def load_custom_settings_path(new_settings_path):
self.SETTINGS_PATH = new_settings_path
'''
Working with items
'''
def _get_is_item_avail(self, item_key, item):
if item in self.AVAIL_ITEMS[item_key]:
return True
return False
def get_record_file_path(self, record):
return sporklib.normalize_path(self.CONTENT_DIRECTORY + "/" + record["name"] + "." + record["ext"])
def _get_item_index(self, item_key, item):
avails = self.get_avail_items(item_key)
i = 0
avail_items = self.get_avail_items(item_key)
for t in avail_items:
if item == t:
return i
else:
i += 1
return -1
def _select_item_by_index(self, item_key, i):
avail_items = self.get_avail_items(item_key)
return avail_items[i]
def _add_item_to_avail(self, item_key, item):
if not self._get_is_item_avail(item_key, item):
items = list(self.get_avail_items(item_key))
items.append(item)
self.AVAIL_ITEMS[item_key] = tuple(items)
def _add_item_to_record(self, record, item_key, item):
records = self.get_records()
if self._get_is_item_avail(item_key, item):
if record["name"] in records:
if item not in record[item_key]:
records[record["name"]][item_key].append(item)
def _remove_item_from_record(self, record, item_key, item):
records = self.get_records()
if self._get_is_item_avail(item_key, item):
if record["name"] in records:
old_set = set(records[record["name"]][item_key])
new_set = old_set - set([item])
records[record["name"]][item_key] = list(new_set)
'''
Working with records
'''
#Takes a dict of records and returns those that DON'T include item_list
def _filter_by_items(self, item_key, items, records=None):
records = records or self.get_records()
item_set = set(items)
matches = {}
for record in records:
records_item_set = set(records[record][item_key])
len_records_item_set = len(records_item_set)
if len(records_item_set - item_set) == len_records_item_set:
matches[record] = records[record]
return matches
#Takes a dict of records that match all items in a list exactly
def _get_item_matches(self, item_key, items, records=None):
records = records or self.get_records()
item_set = set(items)
matches = {}
for record in records:
if len(item_set - set(records[record][item_key])) == 0:
matches[record] = records[record]
return matches
def get_record_path(self, name):
return self.CONTENT_DIRECTORY + "/" + name + "." + self.get_records()[name]["ext"]
def start_file(self, name):
path = self.get_record_path(name)
os.startfile(path)
def get_records(self):
return self.RECORDS
def get_record_template(self):
return dict(self.RECORD_TEMPLATE)