import argparse
import json
import logging
import os
import sys

from prettytable import PrettyTable

from .api import get_project_details, get_user, list_projects


def parse_args():
    """Parse the command line arguments"""

    parser = argparse.ArgumentParser()
    parser.add_argument(
        "-t",
        "--gitlab-token",
        help=(
            "A private access token to access GitLab with. If not specified "
            "will use $GL_TOKEN. Required."
        ),
    )
    parser.add_argument("--debug", action="store_true")
    parser.add_argument("--log-file", default="gitlab2gitea.log")
    parser.add_argument("-f", "--format", default="json")

    subparsers = parser.add_subparsers()

    lp_sp = subparsers.add_parser("list-projects")
    lp_sp.set_defaults(func=list_projects)

    lp_sp = subparsers.add_parser("get-user")
    lp_sp.set_defaults(func=cli_get_user)

    lp_sp = subparsers.add_parser("get-project-details")
    lp_sp.add_argument("--project", required=True)
    lp_sp.set_defaults(func=get_project_details)

    args = parser.parse_args()

    log_level = logging.INFO
    if args.debug:
        log_level = logging.DEBUG

    logging.basicConfig(filename=args.log_file, level=log_level)

    if args.gitlab_token is None:
        args.gitlab_token = os.environ.get("GL_TOKEN")

    if args.gitlab_token is None:
        err_str = "/".join(
            [ac for ac in parser._actions if ac.dest == "gitlab_token"][
                0
            ].option_strings
        )
        parser.print_usage()

        print(
            f"{parser.prog}: error: the following arguments are "
            f"required: {err_str}"
        )
        sys.exit(2)

    if "func" in args:
        args.func(args)

    return args


def cli_get_user(args):
    logging.debug("cli_get_user called")

    user = get_user(args)

    print(json.dumps(user))


def cli_list_projects(args):
    logging.debug("cli_list_projects called")

    projects = list_projects(args)

    if args.format == "table":
        tbl = PrettyTable()
        tbl.align = "l"
        tbl.field_names = [
            "ID",
            "Name",
            # "Description"
        ]

        for row in projects:
            tbl.add_row(
                [
                    row["id"],
                    row["name"],
                    # row["description"][:50] if row["description"] else ""
                ]
            )

        print(tbl)
    elif args.format == "json":
        print(json.dumps(projects))
    else:
        print(projects)