import shutil
import sys
from pathlib import Path

import nox

nox.options.sessions = ["lint", "check_manifest", "tests"]

PYTHON_ALL_VERSIONS = ["3.6", "3.7", "3.8", "3.9"]

DIR = Path(__file__).parent.resolve()


@nox.session
def tests(session: nox.Session) -> None:
    """
    Run the unit and regular tests.
    """
    unit_test_args = ["--run-docker"] if sys.platform.startswith("linux") else []
    session.install("-e", ".[test]")
    if session.posargs:
        session.run("pytest", *session.posargs)
    else:
        session.run("pytest", "unit_test", *unit_test_args)
        session.run("pytest", "test", "-x", "--durations", "0", "--timeout=2400", "test")


@nox.session
def lint(session: nox.Session) -> None:
    """
    Run the linter.
    """
    session.install("pre-commit")
    session.run("pre-commit", "run", "--all-files", *session.posargs)


@nox.session
def check_manifest(session: nox.Session) -> None:
    """
    Ensure all needed files are included in the manifest.
    """

    session.install("check-manifest")
    session.run("check-manifest", *session.posargs)


@nox.session(python=PYTHON_ALL_VERSIONS)
def update_constraints(session: nox.Session) -> None:
    """
    Update the dependencies inplace.
    """
    session.install("requests", "pip-tools")
    session.run("python", "bin/update_dependencies.py")


@nox.session
def update_pins(session: nox.Session) -> None:
    """
    Update the python and docker pins version inplace.
    """
    session.install("-e", ".[bin]")
    session.run("python", "bin/update_pythons.py", "--force")
    session.run("python", "bin/update_docker.py")


@nox.session
def update_proj(session: nox.Session) -> None:
    """
    Update the README inplace.
    """
    session.install("-e", ".[bin]")
    session.run(
        "python",
        "bin/projects.py",
        "docs/data/projects.yml",
        *session.posargs,
    )


@nox.session
def docs(session: nox.Session) -> None:
    """
    Build the docs.
    """
    session.install("-e", ".[docs]")

    if session.posargs:
        if "serve" in session.posargs:
            session.run("mkdocs", "serve")
        else:
            session.error("Unrecognized args, use 'serve'")
    else:
        session.run("mkdocs", "build")


@nox.session
def build(session: nox.Session) -> None:
    """
    Build an SDist and wheel.
    """

    build_p = DIR.joinpath("build")
    if build_p.exists():
        shutil.rmtree(build_p)

    dist_p = DIR.joinpath("dist")
    if dist_p.exists():
        shutil.rmtree(dist_p)

    session.install("build")
    session.run("python", "-m", "build")