# -*- coding: utf-8 -*-
#
# Elephant documentation build configuration file, created by
# sphinx-quickstart on Wed Feb  5 17:11:26 2014.
#
# 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.

import os
import sys
from datetime import date

# 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, '..')

# -- 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.viewcode',
    'sphinx.ext.mathjax',
    'sphinxcontrib.bibtex',
    'matplotlib.sphinxext.plot_directive',
    'numpydoc',
    'nbsphinx',
    'sphinx_tabs.tabs',
]

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

# The suffix of source filenames.
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'Elephant'
authors = u'Elephant authors and contributors'
copyright = u"2014-{this_year}, {authors}".format(this_year=date.today().year,
                                                  authors=authors)

# 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.
#

root_dir = os.path.dirname(os.path.dirname(__file__))
with open(os.path.join(root_dir, 'elephant', 'VERSION')) as version_file:
    # The full version, including alpha/beta/rc tags.
    release = version_file.read().strip()

# The short X.Y version.
version = '.'.join(release.split('.')[:-1])

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
# 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',
    '**.ipynb_checkpoints',
]

# 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 = []

# Only execute Jupyter notebooks that have no evaluated cells
nbsphinx_execute = 'auto'
# Kernel to use for execution
nbsphinx_kernel_name = 'python3'
# Cancel compile on errors in notebooks
nbsphinx_allow_errors = False

# Required to automatically create a summary page for each function listed in
# the autosummary fields of each module.
autosummary_generate = True

# Set to False to not overwrite the custom _toctree/*.rst
autosummary_generate_overwrite = 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'

# 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 = {
    'font_family': 'Arial',
    'page_width': '1200px',  # default is 940
    'sidebar_width': '280px',  # default is 220
    'logo': 'elephant_logo_sidebar.png', # add logo to sidebar
    'fixed_sidebar': '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 = 'images/elephant_logo_sidebar.png'

# 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 = 'images/elephant_favicon.ico'

# 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 = ['images/elephant_logo_sidebar.png']

# 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 = {}

# 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 = 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

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

# Suppresses  wrong numpy doc warnings
# see here https://github.com/phn/pytpm/issues/3#issuecomment-12133978
numpydoc_show_class_members = False

# path to bibtex-bibfiles.
bibtex_bibfiles = ['bib/elephant.bib']

# To configure your referencing style:
bibtex_reference_style = 'author_year_round'

# To configure the bibliography style:
bibtex_default_style = 'author_year'

# -- 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': '',
}

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author, documentclass
# [howto/manual]).
latex_documents = [
    ('index', 'elephant.tex', u'Elephant Documentation',
     authors, '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 = [
    ('index', 'elephant', u'Elephant Documentation',
     [authors], 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 = [
    ('index',
     'Elephant',
     u'Elephant Documentation',
     authors,
     'Elephant',
     'Elephant is a package for the analysis of neurophysiology data.',
     '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'


# -- Options for Epub output ---------------------------------------------

# Bibliographic Dublin Core info.
epub_title = project
epub_author = authors
epub_publisher = authors
epub_copyright = copyright

# The language of the text. It defaults to the language option
# or en if the language is not set.
# epub_language = ''

# The scheme of the identifier. Typical schemes are ISBN or URL.
# epub_scheme = ''

# The unique identifier of the text. This can be a ISBN number
# or the project homepage.
# epub_identifier = ''

# A unique identification for the text.
# epub_uid = ''

# A tuple containing the cover image and cover page html template filenames.
# epub_cover = ()

# HTML files that should be inserted before the pages created by sphinx.
# The format is a list of tuples containing the path and title.
# epub_pre_files = []

# HTML files shat should be inserted after the pages created by sphinx.
# The format is a list of tuples containing the path and title.
# epub_post_files = []

# A list of files that should not be packed into the epub file.
# epub_exclude_files = []

# The depth of the table of contents in toc.ncx.
# epub_tocdepth = 3

# Allow duplicate toc entries.
# epub_tocdup = True


# configuration for intersphinx: refer to Viziphant
intersphinx_mapping = {
    'viziphant': ('https://viziphant.readthedocs.io/en/stable/', None),
    'numpy': ('https://numpy.org/doc/stable', None),
    'neo': ('https://neo.readthedocs.io/en/stable/', None),
    'quantities': ('https://python-quantities.readthedocs.io/en/stable/', None),
    'python': ('https://docs.python.org/3/', None),
    'scipy': ('https://docs.scipy.org/doc/scipy/', None)
}


# The name of math_renderer extension for HTML output.
html_math_renderer = 'mathjax'


def process_docstring_remove_copyright(app, what, name, obj, options, lines):
    """Remove the copyright notice from docstrings: """

    copyright_line = None
    for i, line in enumerate(lines):
        if line.startswith(':copyright:'):
            copyright_line = i
            break
    if copyright_line:
        while len(lines) > copyright_line:
            lines.pop()


def setup(app):
    app.connect('autodoc-process-docstring',
                process_docstring_remove_copyright)

# replace square brackets in citation with round brackets
from dataclasses import dataclass, field
import sphinxcontrib.bibtex.plugin

from sphinxcontrib.bibtex.style.referencing import BracketStyle
from sphinxcontrib.bibtex.style.referencing.author_year \
    import AuthorYearReferenceStyle


def bracket_style() -> BracketStyle:
    return BracketStyle(
        left='(',
        right=')',
    )


@dataclass
class RoundBracketReferenceStyle(AuthorYearReferenceStyle):
    bracket_parenthetical: BracketStyle = field(default_factory=bracket_style)
    bracket_textual: BracketStyle = field(default_factory=bracket_style)
    bracket_author: BracketStyle = field(default_factory=bracket_style)
    bracket_label: BracketStyle = field(default_factory=bracket_style)
    bracket_year: BracketStyle = field(default_factory=bracket_style)


sphinxcontrib.bibtex.plugin.register_plugin(
    'sphinxcontrib.bibtex.style.referencing',
    'author_year_round', RoundBracketReferenceStyle)

# Custom style for bibliography labels

from pybtex.style.formatting.unsrt import Style as UnsrtStyle
from pybtex.style.labels import BaseLabelStyle
from pybtex.plugin import register_plugin


# a simple label style which uses the bibtex keys for labels
class AuthorYearStyle(BaseLabelStyle):

    def format_labels(self, sorted_entries):
        for entry in sorted_entries:
            # create string for label
            yield entry.persons["author"][0].last_names[0] + ", " +\
                entry.fields["year"][-4:]


class AuthorYear(UnsrtStyle):

    default_label_style = AuthorYearStyle


register_plugin('pybtex.style.formatting', 'author_year', AuthorYear)
