import { Grid, Column, Heading, Text } from '@umami/react-zen';
import { firstBy } from 'thenby';
import { CHART_COLORS, UTM_PARAMS } from '@/lib/constants';
import { useResultQuery } from '@/components/hooks';
import { PieChart } from '@/components/charts/PieChart';
import { ListTable } from '@/components/metrics/ListTable';
import { useMessages } from '@/components/hooks';
import { Panel } from '@/components/common/Panel';
import { LoadingPanel } from '@/components/common/LoadingPanel';

export interface UTMProps {
  websiteId: string;
  startDate: Date;
  endDate: Date;
}

export function UTM({ websiteId, startDate, endDate }: UTMProps) {
  const { formatMessage, labels } = useMessages();
  const { data, error, isLoading } = useResultQuery<any>('utm', {
    websiteId,
    dateRange: {
      startDate,
      endDate,
    },
  });
  const isEmpty = !Object.keys(data || {})?.length;

  return (
    <LoadingPanel isEmpty={isEmpty} isLoading={isLoading} error={error}>
      <Column gap>
        {UTM_PARAMS.map(param => {
          const items = toArray(data?.[param]);
          const chartData = {
            labels: items.map(({ name }) => name),
            datasets: [
              {
                data: items.map(({ value }) => value),
                backgroundColor: CHART_COLORS,
                borderWidth: 0,
              },
            ],
          };
          const total = items.reduce((sum, { value }) => {
            return +sum + +value;
          }, 0);

          return (
            <Panel key={param}>
              <Grid columns="1fr 1fr">
                <Column>
                  <Heading>
                    <Text transform="capitalize">{param.replace(/^utm_/, '')}</Text>
                  </Heading>
                  <ListTable
                    metric={formatMessage(labels.views)}
                    data={items.map(({ name, value }) => ({
                      x: name,
                      y: value,
                      z: (value / total) * 100,
                    }))}
                  />
                </Column>
                <Column>
                  <PieChart type="doughnut" data={chartData} />
                </Column>
              </Grid>
            </Panel>
          );
        })}
      </Column>
    </LoadingPanel>
  );
}

function toArray(data: { [key: string]: number } = {}) {
  return Object.keys(data)
    .map(key => {
      return { name: key, value: data[key] };
    })
    .sort(firstBy('value', -1));
}