Files
vgg16-image-recognition/config.py
2023-01-08 11:41:24 -06:00

112 lines
4.4 KiB
Python

import os, json
import psycopg2
class Config:
# store all user input
def __init__(self, format=None):
if format:
self = format
else:
self.data_path: str = ""
self.pg_dsn = None
self.sort_by_match_strength: bool = False
def __repr__(self):
return f"data path: {self.data_path}, pg_config: {self.pg_config}, sorted: {str(self.sort_by_match_strength)}"
def run(self):
"""Completes new config process or uses an existing one. Dumps new data into a JSON file if it is generated, and returns either an old instance of `Config` or the new one as `self`"""
if os.path.exists("./config.json"):
prev_config = self.handle_prev_config()
if prev_config is not None:
return prev_config
else:
self.receive_data_path()
self.set_pg_config()
self.output_formatting()
with open("./config.json", "w") as outfile:
json.dump(self.__dict__, outfile)
return self
else:
self.receive_data_path()
self.set_pg_config()
self.output_formatting()
with open("./config.json", "w") as outfile:
json.dump(self.__dict__, outfile)
return self
# if a config file already exists, offer to use it instead
def handle_prev_config(self):
"""Receives user input and attempts to locate existing config file."""
response_for_prev_config = input("Use existing configuration file? y/n " ).lower()
if response_for_prev_config == "y":
with open("./config.json", "r") as infile:
config_data: Config = json.load(infile)
return config_data
elif response_for_prev_config == "n":
return None
else:
print("Invalid response.")
self.handle_prev_config()
def receive_data_path(self):
"""Locates a valid directory from user input and stores it in Config state as `self.data_path`."""
data_path = input("Provide the location of the directory where we can find your photos: ")
if not os.path.exists(data_path):
print("We didn't find a directory by this name.")
self.receive_data_path()
else:
print("Got it!")
self.data_path = data_path
def set_pg_config(self):
"""Determine if data should be associated with a PostgreSQL instance, and, if so, record the required connection info as dsn string"""
elect_for_pg = input("Connect this program to a PostgreSQL instance? y/n ").lower()
if elect_for_pg == "y":
print("Please provide the relevant connection info. This sensitive information will only be recorded locally on your own machine.")
dbname = input("Provide the DB name: ")
user = input("Provide the username: ")
password = input("Provide the password: ")
print("The following details are optional and may be skipped if connecting to a local instance")
host = input("Provide the host address: ")
port = input("Provide the port connection number: ")
print("Testing connection:")
try:
dsn = f"dbname={dbname} user={user} password={password}"
if host:
dsn = dsn + host
if port:
dsn = dsn + port
conn = psycopg2.connect(f"dbname={dbname} user={user} password={password}")
conn.close()
print("Connection successful!")
self.pg_dsn = dsn
except psycopg2.Error as e:
print("There was an error connecting: ")
print(e)
self.set_pg_config()
elif elect_for_pg == "n":
pass
else:
print("Invalid response.")
self.set_pg_config()
def output_formatting(self):
sort_by_match_strength = input("Sort all files by match strength, or mix all matches together? sort/mix ").lower()
if sort_by_match_strength == "sort":
self.sort_by_match_strength = True
elif sort_by_match_strength == "mix":
self.sort_by_match_strength = False
else:
print("Invalid response.")
self.output_formatting()