# -*- coding: utf-8 -*-

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.

# ARIA TOSCA documentation build configuration file.
#
# 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.

# 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.append(os.path.abspath('../aria'))
sys.path.append(os.path.abspath('../extensions'))

with open('../VERSION') as f:
    version = f.readline()

# -- 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.intersphinx',
    'sphinx_click.ext'
]

# 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_suffix = '.rst'

# The encoding of source files.
#
# source_encoding = 'utf-8-sig'

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = u'ARIA TOSCA'
copyright = u'2016-2017, Apache Software Foundation' # @ReservedAssignment
author = u'Apache Software Foundation'

# 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 short X.Y version.
#version = u'0.0'
# The full version, including alpha/beta/rc tags.
release = version # @UndefinedVariable

# 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

# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#
# today = ''
#
# Else, today_fmt is used as the format for a strftime call.
#
# today_fmt = '%B %d, %Y'

# 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 = []

# The reST default role (used for this markup: `text`) to use for all
# documents.
#
# default_role = None

# If true, '()' will be appended to :func: etc. cross-reference text.
#
# add_function_parentheses = True

# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
#
# add_module_names = True

# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
#
# show_authors = False

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

# A list of ignored prefixes for module index sorting.
# modindex_common_prefix = []

# If true, keep warnings as "system message" paragraphs in the built documents.
# keep_warnings = False

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


# -- 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_rtd_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 = {}

# Add any paths that contain custom themes here, relative to this directory.
#html_theme_path = []

# The name for this set of Sphinx documents.
# "<project> v<release> documentation" by default.
#
# html_title = u'ARIA TOSCA v0.1.0'

# A shorter title for the navigation bar.  Default is the same as html_title.
#
# html_short_title = None

# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
#
# html_logo = None

# The name of an image file (relative to this directory) to use as a favicon of
# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
#
# html_favicon = None

# 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']

# Add any extra paths that contain custom files (such as robots.txt or
# .htaccess) here, relative to this directory. These files are copied
# directly to the root of the documentation.
#
# html_extra_path = []

# If not None, a 'Last updated on:' timestamp is inserted at every page
# bottom, using the given strftime format.
# The empty string is equivalent to '%b %d, %Y'.
#
# html_last_updated_fmt = None

# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
#
# html_use_smartypants = True

# Custom sidebar templates, maps document names to template names.
#
# html_sidebars = {}

# Additional templates that should be rendered to pages, maps page names to
# template names.
#
# html_additional_pages = {}

# If false, no module index is generated.
#
# html_domain_indices = True

# If false, no index is generated.
#
# html_use_index = True

# If true, the index is split into individual pages for each letter.
#
# html_split_index = False

# If true, links to the reST sources are added to the pages.
#
# html_show_sourcelink = True

# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
#
# html_show_sphinx = True

# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
#
# html_show_copyright = True

# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it.  The value of this option must be the
# base URL from which the finished HTML is served.
#
# html_use_opensearch = ''

# This is the file name suffix for HTML files (e.g. ".xhtml").
# html_file_suffix = None

# Language to be used for generating the HTML full-text search index.
# Sphinx supports the following languages:
#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr', 'zh'
#
# html_search_language = 'en'

# A dictionary with options for the search language support, empty by default.
# 'ja' uses this config value.
# 'zh' user can custom change `jieba` dictionary path.
#
# html_search_options = {'type': 'default'}

# The name of a javascript file (relative to the configuration directory) that
# implements a search results scorer. If empty, the default will be used.
#
# html_search_scorer = 'scorer.js'

# Output file base name for HTML help builder.
htmlhelp_basename = 'ARIATOSCAdoc'

# -- 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, 'ARIATOSCA.tex', u'ARIA TOSCA',
     u'Apache Software Foundation', 'manual'),
]

# The name of an image file (relative to this directory) to place at the top of
# the title page.
#
# latex_logo = None

# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
#
# latex_use_parts = False

# If true, show page references after internal links.
#
# latex_show_pagerefs = False

# If true, show URL addresses after external links.
#
# latex_show_urls = False

# Documents to append as an appendix to all manuals.
#
# latex_appendices = []

# If false, no module index is generated.
#
# latex_domain_indices = True


# -- 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, 'aria', u'ARIA TOSCA',
     [author], 1)
]

# If true, show URL addresses after external links.
#
# man_show_urls = False


# -- 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, 'ARIATOSCA', u'ARIA TOSCA',
     author, 'ARIA TOSCA', 'an open, light, CLI-driven library of orchestration tools that other '
     'open projects can consume to easily build TOSCA-based orchestration solutions.',
     'Miscellaneous'),
]

# Documents to append as an appendix to all manuals.
#
# texinfo_appendices = []

# If false, no module index is generated.
#
# texinfo_domain_indices = True

# How to display URL addresses: 'footnote', 'no', or 'inline'.
#
# texinfo_show_urls = 'footnote'

# If true, do not generate a @detailmenu in the "Top" node's menu.
#
# texinfo_no_detailmenu = False


# -- Options for InterSphinx

intersphinx_mapping = {
    'python': ('https://docs.python.org/2.7', None)
}

# -- Options for Python domain

# Append __init__ docstring into class docstring
autoclass_content = 'both'

# Default to everything important
autodoc_default_flags = [
    'members',
    'undoc-members',
    'show-inheritance'
]

SKIP_MEMBERS = (
    'FIELDS',
    'ALLOW_UNKNOWN_FIELDS',
    'SHORT_FORM_FIELD',
    'INSTRUMENTATION_FIELDS'
)

SKIP_MEMBER_SUFFIXES = (
    '_fk',
)

NEVER_SKIP_MEMBERS = (
    '__evaluate__',
)

SKIP_DOCUMENTS = ()

from sphinx import addnodes
from sphinx.domains.python import PythonDomain

try:
    import fabric
except:
    # Note: "exclude_patterns" is not good enough for us, because we still have a TOC entry.
    # Unfortunately, there is no way to conditionally exclude a TOC entry, and TOC entries without
    # matching documents emit an error. So, we will have to manipulate the doctree directly!
    SKIP_DOCUMENTS = ('aria.orchestrator.execution_plugin.ssh',)

def on_autodoc_skip_member(app, what, name, obj, skip, options):
    if name in NEVER_SKIP_MEMBERS:
        return False
    if name in SKIP_MEMBERS: 
        return True
    for suffix in SKIP_MEMBER_SUFFIXES:
        if name.endswith(suffix):
            return True
    return skip

def on_source_read(app, docname, source):
    # Empty out source
    if docname in SKIP_DOCUMENTS:
        source[0] = ''

def on_doctree_read(app, doctree):
    # Remove TOC entry (see: https://gist.github.com/kakawait/9215487)
    for toctreenode in doctree.traverse(addnodes.toctree):
        for e in toctreenode['entries']:
            ref = str(e[1])
            if ref in SKIP_DOCUMENTS:
                toctreenode['entries'].remove(e)    

class PatchedPythonDomain(PythonDomain):
    # See: https://github.com/sphinx-doc/sphinx/issues/3866
    def resolve_xref(self, env, fromdocname, builder, typ, target, node, contnode):
        if 'refspecific' in node:
            del node['refspecific']
        return super(PatchedPythonDomain, self).resolve_xref(
            env, fromdocname, builder, typ, target, node, contnode)

def setup(app):
    app.connect('autodoc-skip-member', on_autodoc_skip_member)
    app.connect('source-read', on_source_read)
    app.connect('doctree-read', on_doctree_read)
    app.override_domain(PatchedPythonDomain)