# -*- coding: utf-8 -*-
#
# pydicom 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.

from datetime import datetime
import os
import sys

import sphinx_rtd_theme
import pydicom

# 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('.'))

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

# Try to override the matplotlib configuration as early as possible
try:
    import gen_rst
except ImportError:
    pass
# -- General configuration ------------------------------------------------


# 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('../build_tools/sphinx'))  # noqa
from github_link import make_linkcode_resolve

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

# 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.append(os.path.abspath('.'))

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

# 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.doctest',
    'sphinx.ext.intersphinx',
    'sphinx.ext.todo',
    'sphinx.ext.imgmath',
    'sphinx.ext.ifconfig',
    'sphinx_gallery.gen_gallery',
    'sphinx.ext.autosummary',
    'sphinx.ext.napoleon',  # Numpy style docstrings
    'sphinx.ext.linkcode',
    'sphinx.ext.extlinks',
    # Custom
    'sphinx_copybutton',
]

autosummary_generate = True

autodoc_default_options = {
    'members': None,
    'no-inherited-members': None,
}

# copybutton conf
copybutton_prompt_text = r'>>> |\.\.\. '
copybutton_prompt_is_regexp = True

# Shortcuts for sphinx.ext.extlinks
extlinks = {
    # 'alias' : (url_prefix, caption)
    # Usage :dcm:`link text <part05/sect_6.2.html>`
    'dcm': (
        'http://dicom.nema.org/medical/dicom/current/output/chtml/%s',
        None
    ),
    'gh': (
        'https://github.com/pydicom/%s',
        None
    ),
    "issue": ("https://github.com/pydicom/pydicom/issues/%s", "#%s"),
    "pr": ("https://github.com/pydicom/pydicom/pull/%s", "#%s"),
}

# intersphinx configuration
intersphinx_mapping = {
    'python': ('https://docs.python.org/{.major}'.format(
        sys.version_info), None),
    'numpy': ('https://docs.scipy.org/doc/numpy/', None),
    'scipy': ('https://docs.scipy.org/doc/scipy/reference', None),
    'matplotlib': ('http://matplotlib.org', None),
}

sphinx_gallery_conf = {
    'default_thumb_file': 'assets/img/pydicom_flat_black_alpha.png',
    # path to your examples scripts
    'examples_dirs': '../examples',
    # path where to save gallery generated examples
    'gallery_dirs': 'auto_examples',
    'backreferences_dir': os.path.join('generated'),
    # to make references clickable
    'doc_module': 'pydicom',
    'reference_url': {
        'pydicom': None
    }
}

napoleon_google_docstring = False
napoleon_numpy_docstring = True

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

# The suffix of source filenames.
source_suffix = '.rst'

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

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = 'pydicom'
year = datetime.now().strftime('%Y')
copyright = f'2008-{year}, Darcy Mason and pydicom 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.
version = pydicom.__version__
# The full version, including alpha/beta/rc tags.
release = pydicom.__version__

# 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 documents that shouldn't be included in the build.
# unused_docs = []

# List of directories, relative to source directory, that shouldn't be searched
# for source files.
exclude_trees = ['_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'

# Custom style
html_style = 'css/pydicom.css'

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

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

# The theme to use for HTML and HTML Help pages.  Major themes that come with
# Sphinx are currently 'default' and 'sphinxdoc'.
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 = [sphinx_rtd_theme.get_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 = "assets/img/pydicom_flat_black.svg"

# 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 = "assets/img/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 = ['_static']

# 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_use_modindex = 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 = False

# 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 = ''

# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml").
# html_file_suffix = ''

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


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

# The paper size ('letter' or 'a4').
# latex_paper_size = 'letter'

# The font size ('10pt', '11pt' or '12pt').
# latex_font_size = '10pt'

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author,
# documentclass [howto/manual]).
latex_documents = [
  ('index', 'pydicom.tex', 'pydicom Documentation',
   'Darcy Mason and pydicom contributors', '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

# Additional stuff for the LaTeX preamble.
# latex_preamble = ''

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

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


def generate_example_rst(app, what, name, obj, options, lines):
    # generate empty examples files, so that we don't get
    # inclusion errors if there are no examples for a class / module
    examples_path = os.path.join(app.srcdir, "generated",
                                 "%s.examples" % name)
    if not os.path.exists(examples_path):
        # touch file
        open(examples_path, 'w').close()


def setup(app):
    app.connect('autodoc-process-docstring', generate_example_rst)
    app.add_css_file('css/pydicom.css')

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


# The following is used by sphinx.ext.linkcode to provide links to github
linkcode_resolve = make_linkcode_resolve(
    'pydicom',
    'https://github.com/pydicom/pydicom/blob/{revision}/{package}/{path}#L{lineno}'  # noqa
)

doctest_global_setup = """
import pydicom
import os, os.path
testfile_path = os.path.join(pydicom.__path__[0], '../tests/test_files')
save_dir = os.getcwd()
os.chdir(testfile_path)
"""
