#!/usr/bin/env python3

import sys
import os
import time
import yaml
import datetime

base_path = os.path.dirname(os.path.realpath(__file__))

with open(os.path.join(base_path, "config_settings.yaml")) as file:
    config_settings = yaml.safe_load(file)

with open(os.path.join(base_path, "variables.yaml")) as file:
    variables = yaml.safe_load(file)

with open(os.path.join(base_path, "lua.yaml")) as file:
    lua = yaml.safe_load(file)

build_date = datetime.datetime.fromtimestamp(
    int(os.environ.get('SOURCE_DATE_EPOCH', time.time())),
    tz=datetime.timezone.utc,
)
data = {
    "config_settings": config_settings,
    "variables": variables,
    "lua": lua,
    "date": build_date.date().isoformat(),
    "copyright_year": build_date.year,
}

from jinja2 import Environment, FileSystemLoader, select_autoescape


def reverse_format(param_list, format_string):
    return format_string.format(param_list)


env = Environment(
    loader=FileSystemLoader("."),
    autoescape=select_autoescape(),
)
env.filters["reverse_format"] = reverse_format

template = env.get_template(sys.argv[1])
print(template.render(data))