# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import absolute_import, print_function, unicode_literals

import re

import six


INTEGRATION_PROJECTS = {
    "autoland",
}

TRUNK_PROJECTS = INTEGRATION_PROJECTS | {"mozilla-central", "comm-central"}

RELEASE_PROJECTS = {
    "mozilla-central",
    "mozilla-beta",
    "mozilla-release",
    "mozilla-esr78",
    "comm-central",
    "comm-beta",
    "comm-esr78",
    "oak",
}

RELEASE_PROMOTION_PROJECTS = {
    "jamun",
    "maple",
    "try",
    "try-comm-central",
} | RELEASE_PROJECTS

TEMPORARY_PROJECTS = set(
    {
        # When using a "Disposeabel Project Branch" you can specify your branch here. e.g.:
        # 'oak',
    }
)

ALL_PROJECTS = RELEASE_PROMOTION_PROJECTS | TRUNK_PROJECTS | TEMPORARY_PROJECTS

RUN_ON_PROJECT_ALIASES = {
    # key is alias, value is lambda to test it against
    "all": lambda project: True,
    "integration": lambda project: project in INTEGRATION_PROJECTS,
    "release": lambda project: project in RELEASE_PROJECTS,
    "trunk": lambda project: project in TRUNK_PROJECTS,
}

_COPYABLE_ATTRIBUTES = (
    "accepted-mar-channel-ids",
    "artifact_map",
    "artifact_prefix",
    "build_platform",
    "build_type",
    "l10n_chunk",
    "locale",
    "mar-channel-id",
    "nightly",
    "required_signoffs",
    "shippable",
    "shipping_phase",
    "shipping_product",
    "signed",
    "stub-installer",
    "update-channel",
)


def attrmatch(attributes, **kwargs):
    """Determine whether the given set of task attributes matches.  The
    conditions are given as keyword arguments, where each keyword names an
    attribute.  The keyword value can be a literal, a set, or a callable.  A
    literal must match the attribute exactly.  Given a set, the attribute value
    must be in the set.  A callable is called with the attribute value.  If an
    attribute is specified as a keyword argument but not present in the
    attributes, the result is False."""
    for kwkey, kwval in six.iteritems(kwargs):
        if kwkey not in attributes:
            return False
        attval = attributes[kwkey]
        if isinstance(kwval, set):
            if attval not in kwval:
                return False
        elif callable(kwval):
            if not kwval(attval):
                return False
        elif kwval != attributes[kwkey]:
            return False
    return True


def keymatch(attributes, target):
    """Determine if any keys in attributes are a match to target, then return
    a list of matching values. First exact matches will be checked. Failing
    that, regex matches and finally a default key.
    """
    # exact match
    if target in attributes:
        return [attributes[target]]

    # regular expression match
    matches = [v for k, v in six.iteritems(attributes) if re.match(k + "$", target)]
    if matches:
        return matches

    # default
    if "default" in attributes:
        return [attributes["default"]]

    return []


def match_run_on_projects(project, run_on_projects):
    """Determine whether the given project is included in the `run-on-projects`
    parameter, applying expansions for things like "integration" mentioned in
    the attribute documentation."""
    aliases = RUN_ON_PROJECT_ALIASES.keys()
    run_aliases = set(aliases) & set(run_on_projects)
    if run_aliases:
        if any(RUN_ON_PROJECT_ALIASES[alias](project) for alias in run_aliases):
            return True

    return project in run_on_projects


def match_run_on_hg_branches(hg_branch, run_on_hg_branches):
    """Determine whether the given project is included in the `run-on-hg-branches`
    parameter. Allows 'all'."""
    if "all" in run_on_hg_branches:
        return True

    for expected_hg_branch_pattern in run_on_hg_branches:
        if re.match(expected_hg_branch_pattern, hg_branch):
            return True

    return False


def copy_attributes_from_dependent_job(dep_job, denylist=()):
    return {
        attr: dep_job.attributes[attr]
        for attr in _COPYABLE_ATTRIBUTES
        if attr in dep_job.attributes and attr not in denylist
    }


def sorted_unique_list(*args):
    """Join one or more lists, and return a sorted list of unique members"""
    combined = set().union(*args)
    return sorted(combined)


def release_level(project):
    """
    Whether this is a staging release or not.

    :return six.text_type: One of "production" or "staging".
    """
    return "production" if project in RELEASE_PROJECTS else "staging"