import logging

from flask import Blueprint, redirect, render_template, request, url_for

from ...services import mock_mail
from ...services import sieve_builder, store

bp = Blueprint("rules", __name__, template_folder="../../templates")
log = logging.getLogger(__name__)


def _sync_sieve():
    owner = mock_mail.CURRENT_USER_EMAIL
    try:
        rules = store.list_rules(owner)
        script = sieve_builder.render(rules)
        ok, msg = sieve_builder.deploy(owner, script)
        if not ok:
            log.warning("sieve deploy failed for %s: %s", owner, msg)
    except Exception:
        log.warning("sieve sync error", exc_info=True)


FIELDS = [
    ("from", "Поле «От»"),
    ("to", "Поле «Кому»"),
    ("cc", "Поле «Копия»"),
    ("subject", "Поле «Тема»"),
    ("body", "Содержимое письма"),
    ("forwarded_from", "Поле «Переадресовано от»"),
    ("forwarded_to", "Поле «Переадресовано для»"),
    ("size_kb", "Размер письма (Кб)"),
]
OPS = [
    ("contains", "содержит"),
    ("not_contains", "не содержит"),
    ("equals", "равно"),
    ("starts_with", "начинается с"),
    ("ends_with", "оканчивается на"),
    ("matches", "совпадает с шаблоном"),
    ("greater_than", "больше, чем"),
]
ACTIONS = [
    ("move", "переместить в папку"),
    ("star", "добавить в избранное"),
    ("important", "пометить как важное"),
    ("mark_read", "пометить прочитанным"),
    ("delete", "удалить"),
    ("forward_copy", "переслать копию на адрес"),
    ("autoreply", "ответить автоматически"),
]


@bp.route("/")
def index():
    return render_template(
        "rules/index.html",
        rules=mock_mail.list_rules(),
        fields=dict(FIELDS),
        ops=dict(OPS),
        actions=dict(ACTIONS),
        fields_list=FIELDS,
        ops_list=OPS,
        actions_list=ACTIONS,
        folders=mock_mail.all_folders(),
    )


@bp.route("/new", methods=["POST"])
def create():
    mock_mail.add_rule(
        name=request.form.get("name", "").strip() or "Без названия",
        field_=request.form.get("field", "subject"),
        op=request.form.get("op", "contains"),
        value=request.form.get("value", "").strip(),
        action=request.form.get("action", "move"),
        target=request.form.get("target", "").strip(),
        apply_to_existing=bool(request.form.get("apply_to_existing")),
        continue_chain=bool(request.form.get("continue_chain")),
        apply_to_spam=bool(request.form.get("apply_to_spam")),
    )
    _sync_sieve()
    return redirect(url_for("rules.index"))


@bp.route("/<int:rid>/toggle", methods=["POST"])
def toggle(rid: int):
    mock_mail.toggle_rule(rid)
    _sync_sieve()
    return redirect(url_for("rules.index"))


@bp.route("/<int:rid>/delete", methods=["POST"])
def delete(rid: int):
    mock_mail.delete_rule(rid)
    _sync_sieve()
    return redirect(url_for("rules.index"))