#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright 2020-2022 F4PGA Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
#
# SymbiFlow V2X documentation build configuration file, created by
# sphinx-quickstart on Mon Feb  5 11:04:37 2018.
#
# This file is execfile()d with the current directory set to its
# containing dir.
#
# Note that not all possible configuration values are present in this
# autogenerated file.
#
# All configuration values have a default; values that are commented out
# serve to show the default.

from collect_examples import collect_examples
from pygments.lexers.hdl import VerilogLexer
from sphinx.highlighting import lexers
import re

# Markdown support
import recommonmark  # noqa

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
#
import os
import sys
sys.path.insert(0, os.path.abspath('.'))
from markdown_code_symlinks import LinkParser, MarkdownSymlinksDomain  # noqa


lexers['verilog'] = VerilogLexer(tabsize=2)

# -- General configuration ------------------------------------------------

# If your documentation needs a minimal Sphinx version, state it here.
#
# needs_sphinx = '1.0'

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
    'sphinx.ext.autodoc',
    'sphinx.ext.autosummary',
    'sphinx.ext.doctest',
    'sphinx.ext.imgmath',
    'sphinx.ext.napoleon',
    'sphinx.ext.todo',
    'sphinx_markdown_tables',
    'sphinxcontrib_hdl_diagrams'
]

# Make sphinxcontrib_verilog_diagrams use Yosys installed in conda
hdl_diagram_yosys = "system"

# Add any paths that contain templates here, relative to this directory.
templates_path = ['_templates']

# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
source_suffix = ['.rst', '.md']
source_parsers = {
    '.md': 'markdown_code_symlinks.LinkParser',
}

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = u'SymbiFlow Verilog to XML (V2X)'
copyright = u'2018, SymbiFlow Team'
author = u'SymbiFlow Team'

# Enable github links when not on readthedocs
on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
if not on_rtd:
    html_context = {
        "display_github": True,  # Integrate GitHub
        "github_user": "symbiflow",  # Username
        "github_repo": "python-symbiflow-v2x",  # Repo name
        "github_version": "master",  # Version
        "conf_py_path": "/doc/",
    }
else:
    docs_dir = os.path.abspath(os.path.dirname(__file__))
    print("Docs dir is:", docs_dir)
    import subprocess
    subprocess.call('git fetch origin --unshallow', cwd=docs_dir, shell=True)
    subprocess.check_call('git fetch origin --tags', cwd=docs_dir, shell=True)

# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The full version, including alpha/beta/rc tags.
release = re.sub('^v', '', os.popen('git describe ').read().strip())
# The short X.Y version.
version = release

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = None

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This patterns also effect to html_static_path and html_extra_path
exclude_patterns = ['_build', 'env', 'Thumbs.db', '.DS_Store']

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'default'

# If true, `todo` and `todoList` produce output, else they produce nothing.
todo_include_todos = True

# -- Options for HTML output ----------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
#
html_theme = 'sphinx_symbiflow_theme'

# Theme options are theme-specific and customize the look and feel of a theme
# further.  For a list of options available for each theme, see the
# documentation.
#
html_theme_options = {
    # Customize css colors.
    # For details see link.
    # https://getmdl.io/customize/index.html
    #
    # Primary colors:
    # red, pink, purple, deep-purple, indigo, blue, light-blue, cyan,
    # teal, green, light-green, lime, yellow, amber, orange, deep-orange,
    # brown, grey, blue-grey, white
    'color_primary': 'deep-purple',

    # Accent colors:
    # red, pink, purple, deep-purple, indigo, blue, light-blue, cyan,
    # teal, green, light-green, lime, yellow, amber, orange, deep-orange
    'color_accent': 'indigo'
}

# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
html_static_path = ['_static']

# -- Options for HTMLHelp output ------------------------------------------

# Output file base name for HTML help builder.
htmlhelp_basename = 'symbiflow-v2x'

# -- Options for LaTeX output ---------------------------------------------

latex_elements = {
    # The paper size ('letterpaper' or 'a4paper').
    #
    # 'papersize': 'letterpaper',

    # The font size ('10pt', '11pt' or '12pt').
    #
    # 'pointsize': '10pt',

    # Additional stuff for the LaTeX preamble.
    #
    # 'preamble': '',

    # Latex figure (float) alignment
    #
    # 'figure_align': 'htbp',
}

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title,
#  author, documentclass [howto, manual, or own class]).
latex_documents = [
    (
        master_doc, 'SymbiFlowV2X.tex', u'SymbiFlow V2X Documentation',
        u'SymbiFlow Team', 'manual'),
]

# -- Options for manual page output ---------------------------------------

# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [
    (master_doc, 'symbiflow-v2x', u'SymbiFlow V2X Documentation', [author], 1)
]

# -- Options for Texinfo output -------------------------------------------

# Grouping the document tree into Texinfo files. List of tuples
# (source start file, target name, title, author,
#  dir menu entry, description, category)
texinfo_documents = [
    (
        master_doc, 'SymbiFlowV2X', u'SymbiFlow V2X Documentation', author,
        'SymbiFlowV2X', 'One line description of project.', 'Miscellaneous'),
]

# Example configuration for intersphinx: refer to the Python standard library.
intersphinx_mapping = {'https://docs.python.org/': None}


def setup(app):
    # Collect tests to form examples
    collect_examples()

    github_code_repo = 'https://github.com/SymbiFlow/python-symbiflow-v2x/'
    github_code_branch = 'blob/master/'

    docs_root_dir = os.path.realpath(os.path.dirname(__file__))
    code_root_dir = os.path.realpath(os.path.join(docs_root_dir, ".."))

    MarkdownSymlinksDomain.init_domain(
        github_code_repo, github_code_branch, docs_root_dir, code_root_dir)
    MarkdownSymlinksDomain.find_links()
    app.add_domain(MarkdownSymlinksDomain)
    app.add_config_value(
        'recommonmark_config', {
            'github_code_repo': github_code_repo,
        }, True)