"""

This module contains function for inserting new instances of data in the

JSON file.

"""

import copy, json

# Function for sensible type conversion

def stringType(string: str):

try:

int(string)

return int

except ValueError:

try:

float(string)

return float

except ValueError:

return str

# Variable to indenting nesting

indent = 4

def populator(schema: dict, filePath: str):

"""

'create' function is for creating new instances of data. This is a recursive function

which recurses when the value of any key of the schema, that is a dictionary, is a

dictionary.

Proper indentation system has been implemented while countering nested dictionary for

a better UI and UX.

'stringType' function has been used for very sensitive case conversions.

"""

value = copy.deepcopy(schema)

global indent

arg = f'{" " * indent}'

for key in schema:

arg = f'{" " * indent}{key}: ' # Variable for variable indentation spaces for nested value taking

if type(schema[key]) == dict:

indent += 4

print(arg)

value[key] = populator(schema[key], filePath) # Recurse if the value of the key is a dictionary

indent -= 4

elif type(schema[key]) == list:

itemList = []

while True: # Looped input taking if the value of the key is list type

item = input(arg)

if item.lower() != "__end__":

if stringType(item.strip()) == int:

item = int(item)

elif stringType(item.strip()) == float:

item = float(item)

elif item.strip() == "":

item = None

else:

pass

itemList.append(item)

else:

break

value[key] = itemList

else: # Input taking for scalar value

item = input(arg)

if item.lower() != "end":

if stringType(item.strip()) == int:

item = int(item)

elif stringType(item.strip()) == float:

item = float(item)

elif item.strip() == "":

item = None

else:

pass

value[key] = item

return value

def create(schema: dict, filePath:str):

global indent

arg = f'{" " * indent}'

try:

with open(filePath, "r") as f:

data = json.load(f)

except (FileNotFoundError, json.JSONDecodeError):

data = {}

while True:

entry_id = input(f"{arg}ID: ")

if entry_id in list(data.keys()):

print(f"Instance with ID {entry_id} already exists")

elif " " in entry_id:

print("ID can't have white spaces")

else:

break

new_record = populator(schema, filePath)

data[entry_id] = new_record

with open(filePath, "w") as f:

json.dump(data, f, indent=8)