#!/usr/bin/env python
# SPDX-License-Identifier: BSD-2-Clause
""" This script generates glossaries of terms from the specification. """

# Copyright (C) 2019, 2020 embedded brains GmbH (http://www.embedded-brains.de)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

import os
import string
import subprocess
from typing import List

import rtemsspec.applconfig
import rtemsspec.build
from rtemsspec.items import ItemCache
import rtemsspec.glossary
import rtemsspec.interface
import rtemsspec.util
import rtemsspec.validation


def _run_command(args: List[str], cwd: str) -> int:
    task = subprocess.Popen(args,
                            stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT,
                            cwd=cwd)
    assert task.stdout is not None
    while True:
        line = task.stdout.readline()
        if line:
            print(line.decode("utf-8").strip())
        elif task.poll() is not None:
            break
    return task.wait()


def _run_pre_qualified_only_build(config: dict, item_cache: ItemCache) -> None:
    files = rtemsspec.build.gather_files(config, item_cache)
    source_dir = config["source-directory"]
    workspace_dir = config["workspace-directory"]
    rtemsspec.util.copy_files(source_dir, workspace_dir, files)
    with open(os.path.join(workspace_dir, "config.ini"), "w") as config_ini:
        content = string.Template(config["config-ini"]).substitute(config)
        config_ini.write(content)
    specs = os.path.relpath(os.path.join(source_dir, "spec"), workspace_dir)
    _run_command([
        "./waf", "configure", "--rtems-specs", specs, "--rtems-top-group",
        "/build/grp"
    ], workspace_dir)
    _run_command(["./waf"], workspace_dir)


def _run_pre_qualified_doxygen(config: dict) -> None:
    workspace_dir = config["workspace-directory"]
    with open(config["doxyfile-template"], "r") as doxyfile_template:

        class Template(string.Template):
            """ Template class with custom delimiter. """
            delimiter = "%"

        doxyfile_vars = {}
        doxyfile_vars["project_name"] = "RTEMS"
        doxyfile_vars["output_directory"] = "doc"
        content = Template(doxyfile_template.read()).substitute(doxyfile_vars)
        with open(os.path.join(workspace_dir, "Doxyfile"), "w") as doxyfile:
            doxyfile.write(content)
    _run_command(["doxygen"], workspace_dir)


def main() -> None:
    """ Generates glossaries of terms according to the configuration. """
    config = rtemsspec.util.load_config("config.yml")
    item_cache = ItemCache(config["spec"])
    rtemsspec.glossary.generate(config["glossary"], item_cache)
    rtemsspec.applconfig.generate(config["appl-config"], item_cache)
    rtemsspec.interface.generate(config["interface"], item_cache)
    rtemsspec.validation.generate(config["validation"], item_cache)
    _run_pre_qualified_only_build(config["build"], item_cache)
    _run_pre_qualified_doxygen(config["build"])


if __name__ == "__main__":
    main()