#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# ANTsPy documentation build configuration file, created by
# sphinx-quickstart on Fri Dec 23 13:31:47 2016.
#
# 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
import shutil

on_rtd = os.environ.get('READTHEDOCS') == 'True'

    # add package to local path
sys.path.insert(0, os.path.abspath('../../'))
autodoc_mock_imports = ['_tkinter', 'matplotlib']
if on_rtd:
    # replace lib __init__ with empty init file since RTD cant handle C++ extensions
    os.remove('../../ants/lib/__init__.py')
    shutil.copyfile('emptyinit.py', '../../ants/lib/__init__.py')

import ants
import numpy as np
import sphinx_rtd_theme


# -- 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.intersphinx',
    'sphinx.ext.todo',
    'sphinx.ext.coverage',
    'sphinx.ext.mathjax',
    'sphinx.ext.napoleon',
    'sphinx.ext.viewcode',
]

napoleon_use_ivar = True

# 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 master toctree document.
master_doc = 'index'

# General information about the project.
project = 'ANTsPy'
copyright = '2017, ANTs Contributors'
author = 'ANTs Contributors'

# 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.
# TODO: change to [:2] at v1.0
version = 'master (0.1.3)'
# The full version, including alpha/beta/rc tags.
# TODO: verify this works as expected
release = 'master'

# 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 = []

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

# 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 = 'alabaster'
#html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

# 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 = {
#    'collapse_navigation': False,
#    'display_version': True,
#    'logo_only': True,
#}

html_logo = '_static/img/antspy-logo.png'

# 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']

#html_style_path = '_static/css/ants_theme.css'
#html_context = {
#    'css_files': [
#        'https://fonts.googleapis.com/css?family=Lato',
#        '_static/css/ants_theme.css'
#    ],
#}


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

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


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



# -- 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, 'ANTsPy', 'ANTsPy 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, 'ANTsPy', 'ANTsPy Documentation',
     author, 'ANTsPy', 'One line description of project.',
     'Miscellaneous'),
]


# Example configuration for intersphinx: refer to the Python standard library.
intersphinx_mapping = {
    'python': ('https://docs.python.org/', None),
    'numpy': ('http://docs.scipy.org/doc/numpy/', None),
}

# -- A patch that prevents Sphinx from cross-referencing ivar tags -------
# See http://stackoverflow.com/a/41184353/3343043

from docutils import nodes
from sphinx.util.docfields import TypedField
from sphinx import addnodes


def patched_make_field(self, types, domain, items, **kw):
    # `kw` catches `env=None` needed for newer sphinx while maingaining
    #  backwards compatibility when passed along further down!

    # type: (List, unicode, Tuple) -> nodes.field
    def handle_item(fieldarg, content):
        par = nodes.paragraph()
        par += addnodes.literal_strong('', fieldarg)  # Patch: this line added
        # par.extend(self.make_xrefs(self.rolename, domain, fieldarg,
        #                           addnodes.literal_strong))
        if fieldarg in types:
            par += nodes.Text(' (')
            # NOTE: using .pop() here to prevent a single type node to be
            # inserted twice into the doctree, which leads to
            # inconsistencies later when references are resolved
            fieldtype = types.pop(fieldarg)
            if len(fieldtype) == 1 and isinstance(fieldtype[0], nodes.Text):
                typename = u''.join(n.astext() for n in fieldtype)
                typename = typename.replace('int', 'python:int')
                typename = typename.replace('long', 'python:long')
                typename = typename.replace('float', 'python:float')
                typename = typename.replace('type', 'python:type')
                par.extend(self.make_xrefs(self.typerolename, domain, typename,
                                           addnodes.literal_emphasis, **kw))
            else:
                par += fieldtype
            par += nodes.Text(')')
        par += nodes.Text(' -- ')
        par += content
        return par

    fieldname = nodes.field_name('', self.label)
    if len(items) == 1 and self.can_collapse:
        fieldarg, content = items[0]
        bodynode = handle_item(fieldarg, content)
    else:
        bodynode = self.list_type()
        for fieldarg, content in items:
            bodynode += nodes.list_item('', handle_item(fieldarg, content))
    fieldbody = nodes.field_body('', bodynode)
    return nodes.field('', fieldname, fieldbody)

TypedField.make_field = patched_make_field

