from time import sleep_ms
import json
import os

sleep_ms(200)

print("Hello, Pi Pico! We are now looking to read and write data to files...")

def read_json(file):
    try:
      with open(file) as fd:
          return json.load(fd)
    except OSError:
      print("Unable to open the file with name: "+file)

def write_json(file, contents):
    print("writing data to JSON file...")
    try:
      with open(file,"w") as fd:
        json.dump(contents, fd)
        fd.flush()
    except OSError:
        print("Unable to open the file with name: "+file)

def read_csv(file):
    print("reading csv file")

print("\n-- START --\n")

print("\n== JSON File ==\n")

print("--> Reading file...")
json_contents=read_json("jsonfile.json")

print(f'Type of the JSON data object: {type(json_contents)}')

print("\nJSON file contents:")
print(json_contents)

print("\n--> Writing data to file... update contact number for father")

json_contents['contactNumbers'][0]['phone'] = '987-987-9876'
print("Updated contents")
print(json_contents)
write_json("jsonfile.json", json_contents)
json_contents=read_json("jsonfile.json")
print("\nJSON file contents after write:")
print(json_contents)

print("-- DONE --")