#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# tributary documentation build configuration file, created by
# sphinx-quickstart on Fri Jan 12 22:07:11 2018.
#
# 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 os.path
import subprocess
import shutil
import sphinx_rtd_theme
from recommonmark.transform import AutoStructify
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))


# -- 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.coverage', 'sphinx.ext.viewcode', 'sphinx.ext.autodoc', 'sphinx.ext.napoleon', 'recommonmark']

# 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']

# The master toctree document.
master_doc = 'index'

# General information about the project.
project = 'tributary'
copyright = '2018, Tim Paine'
author = 'Tim Paine'

# 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.
#
_version_py = os.path.join('..', 'tributary', '_version.py')
version_ns = {}

with open(_version_py, mode='r') as version_file:
    exec(version_file.read(), version_ns)

# The short X.Y version.
version = '%i.%i' % version_ns['version_info'][:2]
# The full version, including alpha/beta/rc tags.
release = version_ns['__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

# 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 = ['_build', 'Thumbs.db', '.DS_Store']

# 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 = 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'
html_theme = "sphinx_rtd_theme"
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 = {}

# 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']

# Custom sidebar templates, must be a dictionary that maps document names
# to template names.
#
# This is required for the alabaster theme
# refs: http://alabaster.readthedocs.io/en/latest/installation.html#sidebars
html_sidebars = {
    '**': [
        'relations.html',  # needs 'show_related': True theme option to display
        'searchbox.html',
    ]
}


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

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


# -- 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, 'tributary.tex', 'tributary Documentation',
     'Tim Paine', 'manual'),
]


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


def run_copyreadme(_):
    out = os.path.abspath(os.path.join(os.path.dirname(__file__), 'index.md'))
    readme = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'README.md'))
    api = os.path.abspath(os.path.join(os.path.dirname(__file__), 'api.md'))
    with open(out, 'w') as fp1:
        with open(readme, 'r') as fp2:
            # Skip img
            fp2.readline()
            fp1.write("# Tributary\n")
            for line in fp2:
                if 'src=' in line:
                    # <img>
                    fp1.write(line.replace("docs/", ""))
                elif "](docs/" in line:
                    # md
                    fp1.write(line.replace("](docs/", "]("))
                else:
                    fp1.write(line)

        fp1.write("# API Documentation\n\n")
        with open(api, 'r') as fp2:
            fp1.write(fp2.read())


def run_apidoc(_):
    out_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), 'api'))
    lib_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'tributary'))
    cmd_path = 'sphinx-apidoc'
    if hasattr(sys, 'real_prefix'):  # Check to see if we are in a virtualenv
        # If we are, assemble the path manually
        cmd_path = os.path.abspath(os.path.join(sys.prefix, 'bin', 'sphinx-apidoc'))
    subprocess.check_call([cmd_path,
                           '-E',
                           '-M',
                           '-o',
                           out_dir,
                           lib_dir,
                           '--force'])


def setup(app):
    app.add_config_value('recommonmark_config', {
        'auto_toc_tree_section': 'Contents',
    }, True)
    app.add_transform(AutoStructify)
    app.connect('builder-inited', run_copyreadme)
    app.connect('builder-inited', run_apidoc)