# Configuration file for the Sphinx documentation builder.
#
# This file only contains a selection of the most common options. For a full
# list see the documentation:
# https://www.sphinx-doc.org/en/master/usage/configuration.html

# -- Path setup --------------------------------------------------------------

# 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
# sys.path.insert(0, os.path.abspath('.'))

import datetime
import importlib
import inspect
import os

from recommonmark.transform import AutoStructify
from sphinx.domains import Domain

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

project = "Sentence Transformers"
copyright = str(datetime.datetime.now().year)
author = "Nils Reimers, Tom Aarsen"


# -- 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.napoleon",
    "sphinx.ext.autodoc",
    "recommonmark",
    "sphinx_markdown_tables",
    "sphinx_copybutton",
    "sphinx.ext.intersphinx",
    "sphinx.ext.linkcode",
    "sphinx_inline_tabs",
]

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

# 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",
    "nr_examples",
    "archived",
    "dist",
    "build",
    "output",
    "models",
    "model_card_template.md",
]

intersphinx_mapping = {
    "datasets": ("https://huggingface.co/docs/datasets/main/en/", None),
    "transformers": ("https://huggingface.co/docs/transformers/main/en/", None),
    "torch": ("https://pytorch.org/docs/stable/", None),
}


# -- 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 = "sphinx_rtd_theme"
html_theme_path = ["_themes"]

html_theme_options = {
    "logo_only": True,
    "canonical_url": "https://www.sbert.net",
    "collapse_navigation": False,
}

# 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_css_files = [
    "css/custom.css",
]

html_js_files = [
    "js/custom.js",
]

html_show_sourcelink = False
html_context = {
    "display_github": True,
    "github_user": "UKPLab",
    "github_repo": "sentence-transformers",
    "github_version": "master/",
}

html_logo = "img/logo.png"
html_favicon = "img/favicon.ico"

autoclass_content = "both"


# https://github.com/readthedocs/sphinx-autoapi/issues/202#issuecomment-907582382
def linkcode_resolve(domain, info):
    # Non-linkable objects from the starter kit in the tutorial.
    if domain == "js" or info["module"] == "connect4":
        return

    assert domain == "py", "expected only Python objects"

    mod = importlib.import_module(info["module"])
    if "." in info["fullname"]:
        objname, attrname = info["fullname"].split(".")
        obj = getattr(mod, objname)
        try:
            # object is a method of a class
            obj = getattr(obj, attrname)
        except AttributeError:
            # object is an attribute of a class
            return None
    else:
        obj = getattr(mod, info["fullname"])
    obj = inspect.unwrap(obj)

    try:
        file = inspect.getsourcefile(obj)
        lines = inspect.getsourcelines(obj)
    except TypeError:
        # e.g. object is a typing.Union
        return None
    file = os.path.relpath(file, os.path.abspath(".."))
    if not file.startswith("sentence_transformers"):
        # e.g. object is a typing.NewType
        return None
    start, end = lines[1], lines[1] + len(lines[0]) - 1

    return f"https://github.com/UKPLab/sentence-transformers/blob/master/{file}#L{start}-L{end}"


class GithubURLDomain(Domain):
    """
    Resolve .py links to their respective Github URL
    """

    name = "githuburl"
    ROOT = "https://github.com/UKPLab/sentence-transformers/tree/master"

    def resolve_any_xref(self, env, fromdocname, builder, target, node, contnode):
        if (target.endswith(".py") or target.endswith(".ipynb")) and not target.startswith("http"):
            from_folder = os.path.dirname(fromdocname)
            contnode["refuri"] = "/".join([self.ROOT, from_folder, target])
            return [("githuburl:any", contnode)]
        return []


def setup(app):
    app.add_domain(GithubURLDomain)
    app.add_config_value(
        "recommonmark_config",
        {
            #'url_resolver': lambda url: github_doc_root + url,
            "auto_toc_tree_section": "Contents",
        },
        True,
    )
    app.add_transform(AutoStructify)