import sys
import os
import json
import time

path = os.path.dirname(os.path.realpath(__file__))  + "/.."

if not os.path.exists(path + "/models"):
	print("Face models have not been initialized yet, please run:")
	print("\n\thowdy add\n")
	sys.exit(1)

user = os.environ.get("USER")
enc_file = path + "/models/" + user + ".dat"

try:
	encodings = json.load(open(enc_file))
except FileNotFoundError:
	print("No face model known for the current user (" + user + "), please run:")
	print("\n\thowdy add\n")
	sys.exit(1)

print("Known face models for " + user + ":")
print("\n\t\033[1;29mID  Date                 Label\033[0m")

for enc in encodings:
	print("\t" + str(enc["id"]), end="")
	print((4 - len(str(enc["id"]))) * " ", end="")
	print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(enc["time"])), end="")
	print("  " + enc["label"])

print()