# 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 datetime import datetime
from dateutil.relativedelta import relativedelta
from libmozdata import socorro
from libmozdata.bugzilla import Bugzilla
import pytz
from . import utils
from .logger import logger


BZ_FIELDS = ["id", "summary", "status", "dupe_of", "cf_crash_signature"]


def get_bz_search(signature, start_date):
    params = {
        "include_fields": BZ_FIELDS,
        "f1": "cf_crash_signature",
        "o1": "substring",
        "v1": signature,
        "f2": "creation_ts",
        "o2": "greaterthan",
        "v2": start_date,
    }

    return params


def get_bugs(signature, wait=True):
    # return a dict: bugid => buginfo
    # if buginfo is None => security bug

    if not signature:
        return {}

    logger.info("Get bugs for signature {}: started.".format(signature))

    def bug_handler(bug, data):
        if "cf_crash_signature" in bug:
            if signature in utils.get_signatures([bug["cf_crash_signature"]]):
                data[bug["id"]] = bug
            del bug["cf_crash_signature"]

    start_date = pytz.utc.localize(datetime.utcnow())
    start_date -= relativedelta(hours=2)
    data = {}
    bz = Bugzilla(
        get_bz_search(signature, start_date), bughandler=bug_handler, bugdata=data
    ).get_data()

    bugs = socorro.Bugs.get_bugs([signature])[signature]
    bz.wait()
    bz_bugs = set(data.keys())

    old_bugs = []
    for bug in bugs:
        if bug not in bz_bugs:
            old_bugs.append(bug)
            # the bug is in Socorro and not in search query
            data[bug] = None

    bz = Bugzilla(
        bugids=old_bugs, include_fields=BZ_FIELDS, bughandler=bug_handler, bugdata=data
    )
    if wait:
        bz.wait()
        logger.info("Get bugs: finished.")
        return data

    logger.info("Get bugs: finished.")

    return bz, data