import { Alert, Collapse, Space } from "antd";
import queryString from "query-string";
import { Calendar } from "react-big-calendar";
import { Trans, useTranslation } from "react-i18next";
import { connect } from "react-redux";
import { Link, useLocation, useNavigate } from "react-router-dom";
import { createStructuredSelector } from "reselect";
import { selectProblemJobs } from "../../redux/application/application.selectors";
import { selectBodyshop } from "../../redux/user/user.selectors";
import dayjs from "../../utils/day";
import { HasFeatureAccess } from "../feature-wrapper/feature-wrapper.component";
import Event from "../job-at-change/schedule-event.container";
import JobDetailCards from "../job-detail-cards/job-detail-cards.component";
import local from "./localizer";
import HeaderComponent from "./schedule-calendar-header.component";
import { logImEXEvent } from "../../firebase/firebase.utils";
import "./schedule-calendar.styles.scss";

const mapStateToProps = createStructuredSelector({
  bodyshop: selectBodyshop,
  problemJobs: selectProblemJobs
});

const localizer = local(dayjs);

export function ScheduleCalendarWrapperComponent({
  bodyshop,
  problemJobs,
  data,
  refetch,
  defaultView,
  setDateRangeCallback,
  date,
  ...otherProps
}) {
  const search = queryString.parse(useLocation().search);
  const history = useNavigate();
  const { t } = useTranslation();

  // Determine current view to compute styles consistently
  const currentView = search.view || defaultView || "week";

  const handleEventPropStyles = (event) => {
    const { color, block, arrived } = event ?? {};
    const hasColor = Boolean(color?.hex || color);
    const useBg = currentView !== "agenda";

    // Prioritize explicit blocked-day background to ensure red in all themes
    let bg;
    if (useBg) {
      bg = block
        ? "var(--event-block-bg)"
        : arrived
          ? "var(--event-arrived-bg)"
          : (color?.hex ?? color ?? "var(--event-bg-fallback)");
    }

    const usedFallback = !hasColor && !block && !arrived; // only mark as fallback when not blocked or arrived

    const classes = [
      "imex-event",
      arrived && "imex-event-arrived",
      block && "imex-event-block",
      usedFallback && "imex-event-fallback"
    ]
      .filter(Boolean)
      .join(" ");

    return {
      ...(bg ? { style: { backgroundColor: bg } } : {}),
      className: classes
    };
  };

  const selectedDate = new Date(date || dayjs(search.date) || Date.now());

  return (
    <>
      <JobDetailCards />
      {HasFeatureAccess({ featureName: "smartscheduling", bodyshop }) &&
        problemJobs &&
        (problemJobs.length > 2 ? (
          <Collapse style={{ marginBottom: "5px" }}>
            <Collapse.Panel
              key="1"
              header={
                <span style={{ color: "var(--error-header-text)" }}>{t("appointments.labels.severalerrorsfound")}</span>
              }
            >
              <Space direction="vertical" style={{ width: "100%" }}>
                {problemJobs.map((problem) => (
                  <Alert
                    key={problem.id}
                    type="error"
                    message={
                      <Trans
                        i18nKey="appointments.labels.dataconsistency"
                        components={[<Link key={problem.id} to={`/manage/jobs/${problem.id}`} target="_blank" />]}
                        values={{
                          ro_number: problem.ro_number,
                          code: problem.code
                        }}
                      />
                    }
                  />
                ))}
              </Space>
            </Collapse.Panel>
          </Collapse>
        ) : (
          <Space direction="vertical" style={{ width: "100%", marginBottom: "5px" }}>
            {problemJobs.map((problem) => (
              <Alert
                key={problem.id}
                type="error"
                message={
                  <Trans
                    i18nKey="appointments.labels.dataconsistency"
                    components={[<Link key={problem.id} to={`/manage/jobs/${problem.id}`} target="_blank" />]}
                    values={{
                      ro_number: problem.ro_number,
                      code: problem.code
                    }}
                  />
                }
              />
            ))}
          </Space>
        ))}
      <Calendar
        events={data}
        defaultView={search.view || defaultView || "week"}
        date={selectedDate}
        onNavigate={(date) => {
          search.date = date.toISOString().substr(0, 10);
          history({ search: queryString.stringify(search) });
        }}
        onRangeChange={(start, end) => {
          if (setDateRangeCallback) setDateRangeCallback({ start, end });
        }}
        onView={(view) => {
          search.view = view;
          logImEXEvent("schedule_change_view", { view });

          history({ search: queryString.stringify(search) });
        }}
        step={15}
        // timeslots={1}
        showMultiDayTimes
        localizer={localizer}
        min={bodyshop.schedule_start_time ? new Date(bodyshop.schedule_start_time) : new Date("2020-01-01T06:00:00")}
        max={bodyshop.schedule_end_time ? new Date(bodyshop.schedule_end_time) : new Date("2020-01-01T20:00:00")}
        eventPropGetter={handleEventPropStyles}
        components={{
          event: (e) => Event({ bodyshop: bodyshop, event: e.event, refetch: refetch }),
          header: (p) => <HeaderComponent {...p} events={data} refetch={refetch} />
        }}
        {...otherProps}
      />
    </>
  );
}

export default connect(mapStateToProps, null)(ScheduleCalendarWrapperComponent);