# BeagleBoard.org documentation build configuration file.
# 
# References: 
# https://github.com/zephyrproject-rtos/zephyr/blob/main/doc/conf.py
# https://www.sphinx-doc.org/en/master/usage/configuration.html

import os
import sys
from pathlib import Path
import re
import sphinx_rtd_theme
from sphinx.ext.imgconverter import ImagemagickConverter

ImagemagickConverter.conversion_rules.append(('image/webp', 'image/png'))

BBDOCS_BASE = Path(__file__).resolve().parents[0]

# -- Project information -----------------------------------------------------

project = 'BeagleBoard Docs'
copyright = '2023, BeagleBoard.org Foundation'
author = 'BeagleBoard.org Foundation'

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

sys.path.append(os.path.abspath("./_ext"))

extensions = [
    "callouts",
    "sphinxcontrib.rsvgconverter",
    "sphinx_design",
    "sphinxcontrib.images",
    "sphinx.ext.imgconverter",
    "sphinx.ext.todo",
    "sphinx_tabs.tabs",
    "breathe"
]

breathe_projects = {"librobotcontrol": "projects/librobotcontrol/docs/xml"}
breathe_default_project = "librobotcontrol"

todo_include_todos = True

# Update (HTML) supported_image_types selection priority order
from sphinx.builders.html import StandaloneHTMLBuilder
StandaloneHTMLBuilder.supported_image_types = ['image/svg+xml', 'image/webp', 'image/jpg', 
                                       'image/jpeg', 'image/gif', 'image/png']

# Update (PDF) supported_image_types selection priority order
from sphinx.builders.latex import LaTeXBuilder
LaTeXBuilder.supported_image_types = ['application/pdf', 'image/jpg', 'image/jpeg', 'image/png']

templates_path = ['_templates']

source_suffix = '.rst'
numfig = True
navigation_with_keys = True

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This pattern also affects html_static_path and html_extra_path.
exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']

html_theme = 'sphinx_rtd_theme'
html_show_sphinx = False
html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
html_theme_options = {
    "logo_only": True,
    'prev_next_buttons_location': 'bottom',
}
html_title = "BeagleBoard Documentation"
html_logo = str(BBDOCS_BASE / "_static" / "images" / "logo.svg")
html_favicon = str(BBDOCS_BASE / "_static" / "images" / "favicon.ico")
html_static_path = [str(BBDOCS_BASE / "_static")]
html_last_updated_fmt = "%b %d, %Y"
html_domain_indices = False
html_split_index = True
html_show_sourcelink = False
html_baseurl = "docs.beagleboard.io"

# parse version from 'VERSION' file
with open(BBDOCS_BASE  / "VERSION") as f:
    m = re.match(
        (
            r"^VERSION_MAJOR\s*=\s*(\d+)$\n"
            + r"^VERSION_MINOR\s*=\s*(\d+)$\n"
            + r"^PATCHLEVEL\s*=\s*(\d+)$\n"
            + r"^VERSION_TWEAK\s*=\s*\d+$\n"
            + r"^EXTRAVERSION\s*=\s*(.*)$"
        ),
        f.read(),
        re.MULTILINE,
    )

    if not m:
        sys.stderr.write("Warning: Could not extract docs version\n")
        version = "Unknown"
    else:
        major, minor, patch, extra = m.groups(1)
        version = ".".join((major, minor, patch))
        release_version = ".".join((major, minor))
        if extra:
            version += "-" + extra

release = version

# Variables here holds default settings
pages_url = "https://docs.beagleboard.io"
pages_slug = "latest"
gitlab_user = "docs"
gitlab_version = "main"
gitlab_host = "git.beagleboard.org"
gitlab_repo = "docs.beagleboard.io"
docs_url = "https://docs.beagleboard.io/latest/"

# parse pages details from 'PAGES' file
with open(BBDOCS_BASE  / "PAGES") as f:
    m = re.match(
        (
            r"^PAGES_URL\s*=\s*(\S+)$\n"
            + r"^PAGES_SLUG\s*=\s*(\S+)$\n"
            + r"^GITLAB_USER\s*=\s*(\S+)$\n"
            + r"^PROJECT_BRANCH\s*=\s*(\S+)$\n"
            + r"^GITLAB_HOST\s*=\s*(\S+)$\n"
            + r"^PROJECT_REPO\s*=\s*(\S+)$\n"
        ),
        f.read(),
        re.MULTILINE,
    )

    if not m:
        sys.stderr.write("Warning: Could not extract pages information\n")
    else:
        url, slug, user, branch, host, repo = m.groups(1)
        slug = "latest" if slug == "main" else slug
        pages_url = url
        pages_slug = slug
        gitlab_user = user
        gitlab_version = branch
        gitlab_host = host
        gitlab_repo = repo
        docs_url = "/".join((url, slug))

html_context = {
    "display_gitlab": True,
    "gitlab_host": gitlab_host,
    "gitlab_user": gitlab_user,
    "gitlab_repo": gitlab_repo,
    "gitlab_version": gitlab_version,
    "conf_py_path": "/",
    "show_license": True,
    "pages_url": pages_url,
    "pages_slug": pages_slug,
    "docs_url": docs_url,
    "current_version": version,
    "versions": ("latest", "0.0"),
    "reference_links": {
        "About": "https://beagleboard.org/about",
        "Donate": "https://beagleboard.org/donate",
        "FAQ": "https://forum.beagleboard.org/c/faq"
    }
}

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

latex_elements = {
    "papersize": "a4paper",
    "maketitle": open(BBDOCS_BASE / "_static" / "latex" / "title.tex").read(),
    "preamble": open(BBDOCS_BASE / "_static" / "latex" / "preamble.tex").read(),
    "sphinxsetup": ",".join(
        (
            "verbatimwithframe=false",
            "VerbatimColor={HTML}{f0f2f4}",
            "InnerLinkColor={HTML}{2980b9}",
            "warningBgColor={HTML}{e9a499}",
            "warningborder=0pt",
            r"HeaderFamily=\rmfamily\bfseries",
        )
    ),
}
latex_engine = "xelatex"
latex_logo = str(BBDOCS_BASE / "_static" / "images" / "logo-latex.pdf")
latex_documents = [
    ("index-tex", "beagleboard-docs.tex", "BeagleBoard Docs", author, "manual"),
]

#language = 'en'
#locales_dir = ['locale/']
#gettext_compact = True

def setup(app):
    # theme customizations
    app.add_css_file("css/custom.css")