#!/usr/bin/env python3
# Copyright lowRISC contributors.
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0
r"""Command-line tool to autogenerate boilerplate DV testbench code extended from dv_lib / cip_lib
"""
import argparse

import gen_agent
import gen_env

VENDOR_DEFAULT = "lowrisc"


def main():
    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter)
    parser.add_argument(
        "name",
        metavar="[ip/block name]",
        help="Name of the ip/block for which the UVM TB is being auto-generated"
    )

    parser.add_argument(
        "-a",
        "--gen-agent",
        action='store_true',
        help="Generate UVM agent code extended from DV library")

    parser.add_argument(
        "-s",
        "--has-separate-host-device-driver",
        action='store_true',
        help=
        """IP / block agent creates a separate driver for host and device modes.
                              (ignored if -a switch is not passed)""")

    parser.add_argument("-e",
                        "--gen-env",
                        action='store_true',
                        help="Generate testbench UVM env code")

    parser.add_argument(
        "-c",
        "--is-cip",
        action='store_true',
        help=
        """Is comportable IP - this will result in code being extended from CIP
                              library. If switch is not passed, then the code will be extended from
                              DV library instead. (ignored if -e switch is not passed)"""
    )

    parser.add_argument(
        "-hr",
        "--has-ral",
        default=False,
        action='store_true',
        help="""Specify whether the DUT has CSRs and thus needs a UVM RAL model.
                This option is required if either --is_cip or --has_interrupts are
                enabled.""")

    parser.add_argument(
        "-hi",
        "--has-interrupts",
        default=False,
        action='store_true',
        help="""CIP has interrupts. Create interrupts interface in tb""")

    parser.add_argument(
        "-ha",
        "--has-alerts",
        default=False,
        action='store_true',
        help="""CIP has alerts. Create alerts interface in tb""")

    parser.add_argument(
        "-he",
        "--has-edn",
        default=False,
        action='store_true',
        help="""CIP has EDN connection. Create edn pull interface in tb""")

    parser.add_argument(
        "-ea",
        "--env-agents",
        nargs="+",
        metavar="agt1 agt2",
        help="""Env creates an interface agent specified here. They are
                              assumed to already exist. Note that the list is space-separated,
                              and not comma-separated. (ignored if -e switch is not passed)"""
    )

    parser.add_argument(
        "-ao",
        "--agent-outdir",
        metavar="[hw/dv/sv]",
        help="""Path to place the agent code. A directory called <name>_agent is
                              created at this location. (default set to './<name>')"""
    )

    parser.add_argument(
        "-eo",
        "--env-outdir",
        metavar="[hw/ip/<ip>]",
        help=
        """Path to place the full tetsbench code. It creates 3 directories - dv, data and doc.
                The DV plan and the testplan Hjson files are placed in the doc and data directories
                respectively. These are to be merged into the IP's root directory (with the existing
                data and doc directories). Under dv, it creates 3 sub-directories - env,
                tb and tests to place all of the testbench sources. (default set to './<name>')"""
    )

    parser.add_argument(
        "-v",
        "--vendor",
        default=VENDOR_DEFAULT,
        help=
        """Name of the vendor / entity developing the testbench. This is used to set the VLNV
        of the FuesSoC core files.""")

    args = parser.parse_args()
    if not args.agent_outdir:
        args.agent_outdir = args.name
    if not args.env_outdir:
        args.env_outdir = args.name

    # The has_ral option must be set if either is_cip or has_interrupts is set,
    # as both require use of a RAL model. As such, it is disallowed to not have
    # has_ral set if one of these options is set.
    if not args.has_ral and (args.is_cip or args.has_interrupts):
        args.has_ral = True
        print("NOTE: --has_ral switch is enabled since either "
              "--is_cip or --has_interrupts is set.")

    if args.gen_agent:
        gen_agent.gen_agent(args.name, args.has_separate_host_device_driver,
                            args.agent_outdir, args.vendor)

    if args.gen_env:
        if not args.env_agents:
            args.env_agents = []
        gen_env.gen_env(args.name, args.is_cip, args.has_ral,
                        args.has_interrupts, args.has_alerts, args.has_edn,
                        args.env_agents, args.env_outdir, args.vendor)


if __name__ == '__main__':
    main()