import styled from '@emotion/styled';
import { useMemo, useState } from 'react';
import { useNavigate, useParams } from 'react-router-dom';
import {
  Button,
  H2Title,
  IconBox,
  IconButton,
  IconNorthStar,
  IconPlus,
  IconRefresh,
  IconTrash,
  isDefined,
  useIcons,
} from 'twenty-ui';

import { isAnalyticsEnabledState } from '@/client-config/states/isAnalyticsEnabledState';
import { useObjectMetadataItems } from '@/object-metadata/hooks/useObjectMetadataItems';
import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
import { useDeleteOneRecord } from '@/object-record/hooks/useDeleteOneRecord';
import { useFindOneRecord } from '@/object-record/hooks/useFindOneRecord';
import { useUpdateOneRecord } from '@/object-record/hooks/useUpdateOneRecord';
import { SaveAndCancelButtons } from '@/settings/components/SaveAndCancelButtons/SaveAndCancelButtons';
import { SettingsPageContainer } from '@/settings/components/SettingsPageContainer';
import { Webhook } from '@/settings/developers/types/webhook/Webhook';
import { SettingsDevelopersWebhookUsageGraph } from '@/settings/developers/webhook/components/SettingsDevelopersWebhookUsageGraph';
import { SettingsDevelopersWebhookUsageGraphEffect } from '@/settings/developers/webhook/components/SettingsDevelopersWebhookUsageGraphEffect';
import { getSettingsPagePath } from '@/settings/utils/getSettingsPagePath';
import { SettingsPath } from '@/types/SettingsPath';
import { Select, SelectOption } from '@/ui/input/components/Select';
import { TextArea } from '@/ui/input/components/TextArea';
import { TextInput } from '@/ui/input/components/TextInput';
import { ConfirmationModal } from '@/ui/layout/modal/components/ConfirmationModal';
import { SubMenuTopBarContainer } from '@/ui/layout/page/components/SubMenuTopBarContainer';
import { Section } from '@/ui/layout/section/components/Section';
import { useIsFeatureEnabled } from '@/workspace/hooks/useIsFeatureEnabled';
import { useRecoilValue } from 'recoil';
import { WEBHOOK_EMPTY_OPERATION } from '~/pages/settings/developers/webhooks/constants/WebhookEmptyOperation';
import { WebhookOperationType } from '~/pages/settings/developers/webhooks/types/WebhookOperationsType';

const OBJECT_DROPDOWN_WIDTH = 340;
const ACTION_DROPDOWN_WIDTH = 140;

const StyledFilterRow = styled.div`
  display: grid;
  grid-template-columns: ${OBJECT_DROPDOWN_WIDTH}px ${ACTION_DROPDOWN_WIDTH}px auto;
  gap: ${({ theme }) => theme.spacing(2)};
  margin-bottom: ${({ theme }) => theme.spacing(2)};
  align-items: center;
`;

const StyledPlaceholder = styled.div`
  height: ${({ theme }) => theme.spacing(8)};
  width: ${({ theme }) => theme.spacing(8)};
`;

export const SettingsDevelopersWebhooksDetail = () => {
  const { objectMetadataItems } = useObjectMetadataItems();
  const isAnalyticsEnabled = useRecoilValue(isAnalyticsEnabledState);

  const navigate = useNavigate();
  const { webhookId = '' } = useParams();

  const [isDeleteWebhookModalOpen, setIsDeleteWebhookModalOpen] =
    useState(false);
  const [description, setDescription] = useState<string>('');
  const [operations, setOperations] = useState<WebhookOperationType[]>([
    WEBHOOK_EMPTY_OPERATION,
  ]);
  const [isDirty, setIsDirty] = useState<boolean>(false);
  const { getIcon } = useIcons();

  const { record: webhookData } = useFindOneRecord({
    objectNameSingular: CoreObjectNameSingular.Webhook,
    objectRecordId: webhookId,
    onCompleted: (data) => {
      setDescription(data?.description ?? '');
      const baseOperations = data?.operations
        ? data.operations.map((op: string) => {
            const [object, action] = op.split('.');
            return { object, action };
          })
        : data?.operation
          ? [
              {
                object: data.operation.split('.')[0],
                action: data.operation.split('.')[1],
              },
            ]
          : [];

      setOperations(addEmptyOperationIfNecessary(baseOperations));
      setIsDirty(false);
    },
  });

  const { deleteOneRecord: deleteOneWebhook } = useDeleteOneRecord({
    objectNameSingular: CoreObjectNameSingular.Webhook,
  });

  const developerPath = getSettingsPagePath(SettingsPath.Developers);

  const deleteWebhook = () => {
    deleteOneWebhook(webhookId);
    navigate(developerPath);
  };

  const isAnalyticsV2Enabled = useIsFeatureEnabled('IS_ANALYTICS_V2_ENABLED');

  const fieldTypeOptions: SelectOption<string>[] = useMemo(
    () => [
      { value: '*', label: 'All Objects', Icon: IconNorthStar },
      ...objectMetadataItems.map((item) => ({
        value: item.nameSingular,
        label: item.labelPlural,
        Icon: getIcon(item.icon),
      })),
    ],
    [objectMetadataItems, getIcon],
  );

  const actionOptions: SelectOption<string>[] = [
    { value: '*', label: 'All Actions', Icon: IconNorthStar },
    { value: 'create', label: 'Created', Icon: IconPlus },
    { value: 'update', label: 'Updated', Icon: IconRefresh },
    { value: 'delete', label: 'Deleted', Icon: IconTrash },
  ];

  const { updateOneRecord } = useUpdateOneRecord<Webhook>({
    objectNameSingular: CoreObjectNameSingular.Webhook,
  });

  const cleanAndFormatOperations = (operations: WebhookOperationType[]) => {
    return Array.from(
      new Set(
        operations
          .filter((op) => isDefined(op.object) && isDefined(op.action))
          .map((op) => `${op.object}.${op.action}`),
      ),
    );
  };

  const handleSave = async () => {
    const cleanedOperations = cleanAndFormatOperations(operations);
    setIsDirty(false);
    await updateOneRecord({
      idToUpdate: webhookId,
      updateOneRecordInput: {
        operation: cleanedOperations?.[0],
        operations: cleanedOperations,
        description: description,
      },
    });
    navigate(developerPath);
  };

  const addEmptyOperationIfNecessary = (
    newOperations: WebhookOperationType[],
  ) => {
    if (
      !newOperations.some((op) => op.object === '*' && op.action === '*') &&
      !newOperations.some((op) => op.object === null)
    ) {
      return [...newOperations, WEBHOOK_EMPTY_OPERATION];
    }
    return newOperations;
  };

  const updateOperation = (
    index: number,
    field: 'object' | 'action',
    value: string | null,
  ) => {
    const newOperations = [...operations];

    newOperations[index] = {
      ...newOperations[index],
      [field]: value,
    };

    setOperations(addEmptyOperationIfNecessary(newOperations));
    setIsDirty(true);
  };

  const removeOperation = (index: number) => {
    const newOperations = operations.filter((_, i) => i !== index);
    setOperations(addEmptyOperationIfNecessary(newOperations));
    setIsDirty(true);
  };

  if (!webhookData?.targetUrl) {
    return <></>;
  }

  return (
    <SubMenuTopBarContainer
      title={webhookData.targetUrl}
      links={[
        {
          children: 'Workspace',
          href: getSettingsPagePath(SettingsPath.Workspace),
        },
        { children: 'Developers', href: developerPath },
        { children: 'Webhook' },
      ]}
      actionButton={
        <SaveAndCancelButtons
          isSaveDisabled={!isDirty}
          onCancel={() => {
            navigate(developerPath);
          }}
          onSave={handleSave}
        />
      }
    >
      <SettingsPageContainer>
        <Section>
          <H2Title
            title="Endpoint URL"
            description="We will send POST requests to this endpoint for every new event"
          />
          <TextInput
            placeholder="URL"
            value={webhookData.targetUrl}
            disabled
            fullWidth
          />
        </Section>
        <Section>
          <H2Title title="Description" description="An optional description" />
          <TextArea
            placeholder="Write a description"
            minRows={4}
            value={description}
            onChange={(description) => {
              setDescription(description);
              setIsDirty(true);
            }}
          />
        </Section>
        <Section>
          <H2Title
            title="Filters"
            description="Select the events you wish to send to this endpoint"
          />
          {operations.map((operation, index) => (
            <StyledFilterRow key={index}>
              <Select
                withSearchInput
                dropdownWidth={OBJECT_DROPDOWN_WIDTH}
                dropdownId={`object-webhook-type-select-${index}`}
                value={operation.object}
                onChange={(object) => updateOperation(index, 'object', object)}
                options={fieldTypeOptions}
                emptyOption={{
                  value: null,
                  label: 'Choose an object',
                  Icon: IconBox,
                }}
              />

              <Select
                dropdownWidth={ACTION_DROPDOWN_WIDTH}
                dropdownId={`operation-webhook-type-select-${index}`}
                value={operation.action}
                onChange={(action) => updateOperation(index, 'action', action)}
                options={actionOptions}
              />

              {index < operations.length - 1 ? (
                <IconButton
                  onClick={() => removeOperation(index)}
                  variant="tertiary"
                  size="medium"
                  Icon={IconTrash}
                />
              ) : (
                <StyledPlaceholder />
              )}
            </StyledFilterRow>
          ))}
        </Section>
        {isAnalyticsEnabled && isAnalyticsV2Enabled && (
          <>
            <SettingsDevelopersWebhookUsageGraphEffect webhookId={webhookId} />
            <SettingsDevelopersWebhookUsageGraph webhookId={webhookId} />
          </>
        )}
        <Section>
          <H2Title title="Danger zone" description="Delete this integration" />
          <Button
            accent="danger"
            variant="secondary"
            title="Delete"
            Icon={IconTrash}
            onClick={() => setIsDeleteWebhookModalOpen(true)}
          />
          <ConfirmationModal
            confirmationPlaceholder="yes"
            confirmationValue="yes"
            isOpen={isDeleteWebhookModalOpen}
            setIsOpen={setIsDeleteWebhookModalOpen}
            title="Delete webhook"
            subtitle={
              <>Please type "yes" to confirm you want to delete this webhook.</>
            }
            onConfirmClick={deleteWebhook}
            deleteButtonText="Delete webhook"
          />
        </Section>
      </SettingsPageContainer>
    </SubMenuTopBarContainer>
  );
};