#!/usr/bin/env python3
import sys
from os.path import exists, expanduser
from argparse import ArgumentParser


header = """package {package}

var (
\t// UserAgents is a list of browser and bots user agents.
\tUserAgents = []string{{
"""

item = """\t\t"{content}",\n"""

footer = """\t}}
)\n
"""

if __name__ == "__main__":
    p = ArgumentParser(
        description=(
            "Expects a list of user agents delimited by new line character "
            "to be passed into STDIN and generates go code with this data."
        )
    )
    p.add_argument(
        "package",
        help="Go package name to use",
        default="uarand"
    )
    args = p.parse_args().__dict__

    params = args.copy()
    sys.stderr.write("Reading stdin...\n")
    sys.stdout.write(
        header.format(**params)
    )

    for line in sys.stdin:
        sys.stdout.write(
            item.format(
                content=line.strip(),
                **params
            )
        )

    sys.stdout.write(
        footer.format(**params)
    )