from flask import Blueprint, redirect, request
from webargs import fields
from webargs.flaskparser import use_kwargs
from urllib.parse import unquote

from core_notifications.analytics import emails_events
from core_notifications.consts import SystemEvents

from core_notifications.logs import logger


analytics = Blueprint("analytics", __name__)


@analytics.route("/link/click", methods=["GET"])
@use_kwargs(
    {
        "origin": fields.Str(required=False),
        "user_id": fields.Str(required=False),
        "user_name": fields.Str(required=False),
        "email_id": fields.Str(required=False),
        "subject": fields.Str(required=False),
        "to": fields.Str(required=False),
        "template_id": fields.Str(required=False),
        "template_name": fields.Str(required=False),
        "campaign_id": fields.Str(required=False),
    },
    location="query",
)
def link_click(origin, **kwargs):
    # handle split long lines symbol
    url = unquote(origin.replace("\r", ""))
    cleaned_kwargs = {
        k: unquote(v.replace("\r", "")) for k, v in kwargs.items() if v
    }

    # links protection apps like the "Outlook Links Protection" mey send extra
    # HEAD requests, that we do not need to track to avoid possible duplicates
    if request.method == "GET":
        emails_events.log(
            SystemEvents.email_click_by_link,
            url=url,
            **cleaned_kwargs,
        )
    else:
        logger.warning(
            f"Skipping tracking request with  {request.method} method"
        )
    return redirect(url)