#!/usr/bin/env python
# coding: utf-8
# Copyright (c) DeepGenerator Development Team.


import argparse
import itertools
import sys

from dpgen import __version__, info
from dpgen.auto_test.run import gen_test
from dpgen.collect.collect import gen_collect
from dpgen.data.gen import gen_init_bulk
from dpgen.data.reaction import gen_init_reaction
from dpgen.data.surf import gen_init_surf
from dpgen.database.run import db_run
from dpgen.generator.run import gen_run
from dpgen.simplify.simplify import gen_simplify
from dpgen.tools.auto_gen_param import auto_gen_param
from dpgen.tools.run_report import run_report

"""
A master convenience script with many tools for driving dpgen.
"""

__author__ = "Han Wang"
__copyright__ = "Copyright 2019, The DP-GEN Project"
__maintainer__ = "Haidi Wang"
__email__ = ""


def main_parser() -> argparse.ArgumentParser:
    """Returns parser for `dpgen` command.

    Returns
    -------
    argparse.ArgumentParser
        parser for `dpgen` command
    """
    parser = argparse.ArgumentParser(
        description="""
    dpgen is a convenient script that uses DeepGenerator to prepare initial
    data, drive DeepMDkit and analyze results. This script works based on
    several sub-commands with their own options. To see the options for the
    sub-commands, type "dpgen sub-command -h"."""
    )

    subparsers = parser.add_subparsers()

    # init surf model
    parser_init_surf = subparsers.add_parser(
        "init_surf", help="Generating initial data for surface systems."
    )
    parser_init_surf.add_argument(
        "PARAM", type=str, help="parameter file, json/yaml format"
    )
    parser_init_surf.add_argument(
        "MACHINE",
        type=str,
        default=None,
        nargs="?",
        help="machine file, json/yaml format",
    )
    parser_init_surf.set_defaults(func=gen_init_surf)

    # init bulk model
    parser_init_bulk = subparsers.add_parser(
        "init_bulk", help="Generating initial data for bulk systems."
    )
    parser_init_bulk.add_argument(
        "PARAM", type=str, help="parameter file, json/yaml format"
    )
    parser_init_bulk.add_argument(
        "MACHINE",
        type=str,
        default=None,
        nargs="?",
        help="machine file, json/yaml format",
    )
    parser_init_bulk.set_defaults(func=gen_init_bulk)

    parser_auto_gen_param = subparsers.add_parser(
        "auto_gen_param", help="auto gen param.json"
    )
    # parser_auto_gen_param.add_argument('meltpoint', type=float, help="melt point")
    parser_auto_gen_param.add_argument(
        "PARAM", type=str, help="parameter file, json/yaml format"
    )
    parser_auto_gen_param.set_defaults(func=auto_gen_param)

    # parser_init_reaction
    parser_init_reaction = subparsers.add_parser(
        "init_reaction", help="Generating initial data for reactive systems."
    )
    parser_init_reaction.add_argument(
        "PARAM", type=str, help="parameter file, json/yaml format"
    )
    parser_init_reaction.add_argument(
        "MACHINE",
        type=str,
        default=None,
        nargs="?",
        help="machine file, json/yaml format",
    )
    parser_init_reaction.set_defaults(func=gen_init_reaction)

    # run
    parser_run = subparsers.add_parser(
        "run", help="Main process of Deep Potential Generator."
    )
    parser_run.add_argument("PARAM", type=str, help="parameter file, json/yaml format")
    parser_run.add_argument("MACHINE", type=str, help="machine file, json/yaml format")
    parser_run.add_argument("-d", "--debug", action="store_true", help="log debug info")
    parser_run.set_defaults(func=gen_run)

    # run/report
    parser_rr = subparsers.add_parser(
        "run/report",
        help="Report the systems and the thermodynamic conditions of the labeled frames.",
    )
    parser_rr.add_argument("JOB_DIR", type=str, help="the directory of the DP-GEN job,")
    parser_rr.add_argument(
        "-s",
        "--stat-sys",
        action="store_true",
        help="count the labeled frames for each system",
    )
    parser_rr.add_argument(
        "-i",
        "--stat-iter",
        action="store_true",
        help="print the iteration candidate,failed,accurate count and fp calculation,success and fail count",
    )
    parser_rr.add_argument(
        "-t",
        "--stat-time",
        action="store_true",
        help="print the iteration time, warning!! assume model_devi parallel cores == 1",
    )
    parser_rr.add_argument(
        "-p",
        "--param",
        type=str,
        default="param.json",
        help="the json file provides DP-GEN paramters, should be located in JOB_DIR",
    )
    parser_rr.add_argument("-v", "--verbose", action="store_true", help="being loud")
    parser_rr.set_defaults(func=run_report)

    # collect
    parser_coll = subparsers.add_parser("collect", help="Collect data.")
    parser_coll.add_argument(
        "JOB_DIR", type=str, help="the directory of the DP-GEN job"
    )
    parser_coll.add_argument("OUTPUT", type=str, help="the output directory of data")
    parser_coll.add_argument(
        "-p",
        "--parameter",
        type=str,
        default="param.json",
        help="the json file provides DP-GEN paramters, should be located in JOB_DIR",
    )
    parser_coll.add_argument(
        "-v",
        "--verbose",
        action="store_true",
        help="print number of data in each system",
    )
    parser_coll.add_argument(
        "-m",
        "--merge",
        action="store_true",
        help="merge the systems with the same chemical formula",
    )
    parser_coll.add_argument(
        "-s", "--shuffle", action="store_true", help="shuffle the data systems"
    )
    parser_coll.set_defaults(func=gen_collect)

    # simplify
    parser_run = subparsers.add_parser("simplify", help="Simplify data.")
    parser_run.add_argument("PARAM", type=str, help="parameter file, json/yaml format")
    parser_run.add_argument("MACHINE", type=str, help="machine file, json/yaml format")
    parser_run.add_argument("-d", "--debug", action="store_true", help="log debug info")
    parser_run.set_defaults(func=gen_simplify)

    # test
    parser_test = subparsers.add_parser(
        "autotest", help="Auto-test for Deep Potential."
    )
    parser_test.add_argument("TASK", type=str, help="task can be make, run or post")
    parser_test.add_argument("PARAM", type=str, help="parameter file, json/yaml format")
    parser_test.add_argument(
        "MACHINE",
        type=str,
        default=None,
        nargs="?",
        help="machine file, json/yaml format",
    )
    parser_test.add_argument(
        "-d", "--debug", action="store_true", help="log debug info"
    )
    parser_test.set_defaults(func=gen_test)

    # db
    parser_db = subparsers.add_parser("db", help="Collecting data from DP-GEN.")

    parser_db.add_argument("PARAM", type=str, help="parameter file, json format")

    parser_db.set_defaults(func=db_run)
    return parser


def main():
    info()
    print("Description\n------------")
    parser = main_parser()
    try:
        import argcomplete

        argcomplete.autocomplete(parser)
    except ImportError:
        # argcomplete not present.
        pass

    args = parser.parse_args()

    try:
        getattr(args, "func")
    except AttributeError:
        parser.print_help()
        sys.exit(0)
    args.func(args)


if __name__ == "__main__":
    main()
