# -*- coding: utf-8 -*-
#
# callee documentation build configuration file, created by
# sphinx-quickstart on Wed Oct 14 11:24:04 2015.
#
# 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 datetime import date
import os
import re
import sys

from sphinx.errors import SphinxError
from sphinx.util.docstrings import prepare_docstring

sys.path.append(os.path.abspath('..'))
import callee

# 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.
#sys.path.insert(0, os.path.abspath('.'))


def setup(app):
    """Setup the :class:`Sphinx` app object to process source code
    and generate docs.

    We use this functions to connect the handlers to various Sphinx
    and extension events.
    """
    app.connect('autodoc-process-docstring', autodoc_process_docstring)


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

# If your documentation needs a minimal Sphinx version, state it here.
needs_sphinx = '1.1'

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
    'alabaster',
    'sphinx.ext.autodoc',
    'sphinx.ext.coverage',
    'sphinx.ext.intersphinx',
    'sphinx.ext.viewcode',
]

# 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'callee'
copyright = u'%s, Karol Kuczmarski' % date.today().year
author = u'Karol Kuczmarski'

# 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 = re.search(r"\d+\.\d+", callee.__version__).group()
# The full version, including alpha/beta/rc tags.
release = callee.__version__

# 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.
exclude_patterns = ['_build']

# 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 = 'alabaster'

# 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 = {
    'logo': 'logo.png',  # handled by the logo.html template
    'description': callee.__description__,

    'github_user': 'Xion',
    'github_repo': 'callee',
    'github_type': 'star',
    'github_count': False,
    'github_banner': True,  # "Fork me on GitHub" in the corner

    'travis_button': True,
}

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

# The name for this set of Sphinx documents.  If None, it defaults to
# "<project> v<release> documentation".
#html_title = None

# 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 (within the static path) to use as 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 '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
#html_last_updated_fmt = '%b %d, %Y'

# 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 = {
    'index': [
        'about.html',           # from Alabaster
        'sidebar/index.html',   # own
        'searchbox.html',       # from Sphinx
    ],
    '**': [
        'about.html',           # from Alabaster
        'localtoc.html',        # from Sphinx
        'searchbox.html',       # from Sphinx
    ],
}

# 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, the reST sources are included in the HTML build as _sources/name.
# The default is True.
html_copy_source = False

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

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

# 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'
#html_search_language = 'en'

# A dictionary with options for the search language support, empty by default.
# Now only 'ja' uses this config value
#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 = 'calleedoc'

# -- 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, 'callee.tex', u'callee Documentation',
   u'Karol Kuczmarski', '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, 'callee', u'callee Documentation',
     [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, 'callee', u'callee Documentation',
   author, 'callee', 'One line description of project.',
   '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 autodoc extension ----------------------------------------

# Whether `autoclass` should include class's docstring, __init__ method's
# docstring, or both.
autoclass_content = 'both'

# Exceptions to the above setting, handled by ``autodoc_process_docstring``.
# Any class names on this list will only have their class docstring included
# (and not also the  ``__init__`` method docstring).
autoclass_content_exceptions = [
    'callee.operators.Contains',
    'callee.operators.In',
]


def autodoc_process_docstring(app, what, name, obj, options, lines):
    """Handler for the event emitted when autodoc processes a docstring.
    See http://sphinx-doc.org/ext/autodoc.html#event-autodoc-process-docstring.

    The TL;DR is that we can modify ``lines`` in-place to influence the output.
    """
    # check that only symbols that can be directly imported from ``callee``
    # package are being documented
    _, symbol = name.rsplit('.', 1)
    if symbol not in callee.__all__:
        raise SphinxError(
            "autodoc'd '%s' is not a part of the public API!" % name)

    # for classes exempt from automatic merging of class & __init__ docs,
    # pretend their __init__ methods have no docstring at all,
    # so that nothing will be appended to the class's docstring
    if what == 'class' and name in autoclass_content_exceptions:
        # amusingly, when autodoc reads the constructor's docstring
        # for appending it to class docstring, it will report ``what``
        # as 'class' (again!); hence we must check what it actually read
        ctor_docstring_lines = prepare_docstring(obj.__init__.__doc__)
        if lines == ctor_docstring_lines:
            lines[:] = []


# -- Options for intersphinx extension ------------------------------------

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

# Since we point to Python 2.7 docs which basically don't change,
# there is no reason not to cache the them indefinetely.
intersphinx_cache_limit = -1