import { all, call, put, select, take, takeEvery } from "redux-saga/effects";
import * as Sentry from "@sentry/react";
import {
  ReduxAction,
  ReduxActionErrorTypes,
  ReduxActionTypes,
  ReduxActionWithMeta,
  ReduxFormActionTypes,
} from "constants/ReduxActionConstants";
import { getFormData } from "selectors/formSelectors";
import { DATASOURCE_DB_FORM, QUERY_EDITOR_FORM_NAME } from "constants/forms";
import history from "utils/history";
import {
  APPLICATIONS_URL,
  DATA_SOURCES_EDITOR_ID_URL,
  QUERIES_EDITOR_ID_URL,
  INTEGRATION_EDITOR_URL,
  INTEGRATION_TABS,
} from "constants/routes";
import {
  getCurrentApplicationId,
  getCurrentPageId,
} from "selectors/editorSelectors";
import { autofill, change, initialize } from "redux-form";
import {
  getAction,
  getDatasource,
  getPluginTemplates,
  getPlugin,
  getEditorConfig,
  getSettingConfig,
  getActions,
  getPlugins,
} from "selectors/entitiesSelector";
import { PluginType, QueryAction } from "entities/Action";
import {
  createActionRequest,
  setActionProperty,
} from "actions/pluginActionActions";
import { getNextEntityName, getQueryParams } from "utils/AppsmithUtils";
import { isEmpty, merge } from "lodash";
import { getConfigInitialValues } from "components/formControls/utils";
import { Variant } from "components/ads/common";
import { Toaster } from "components/ads/Toast";
import { Datasource } from "entities/Datasource";
import _ from "lodash";
import {
  createMessage,
  ERROR_ACTION_RENAME_FAIL,
} from "@appsmith/constants/messages";
import get from "lodash/get";
import {
  initFormEvaluations,
  startFormEvaluations,
} from "actions/evaluationActions";
import { updateReplayEntity } from "actions/pageActions";
import { ENTITY_TYPE } from "entities/AppsmithConsole";
import AnalyticsUtil, { EventLocation } from "utils/AnalyticsUtil";
import {
  ActionData,
  ActionDataState,
} from "reducers/entityReducers/actionsReducer";
import { UIComponentTypes } from "api/PluginApi";
import { getUIComponent } from "pages/Editor/QueryEditor/helpers";

// Called whenever the query being edited is changed via the URL or query pane
function* changeQuerySaga(actionPayload: ReduxAction<{ id: string }>) {
  const { id } = actionPayload.payload;
  let configInitialValues = {};
  const applicationId: string = yield select(getCurrentApplicationId);
  const pageId: string = yield select(getCurrentPageId);
  if (!applicationId || !pageId) {
    history.push(APPLICATIONS_URL);
    return;
  }
  const action = yield select(getAction, id);
  if (!action) {
    history.push(
      INTEGRATION_EDITOR_URL(applicationId, pageId, INTEGRATION_TABS.ACTIVE),
    );
    return;
  }

  // fetching pluginId and the consequent configs from the action
  const pluginId = action.pluginId;
  const currentEditorConfig: any[] = yield select(getEditorConfig, pluginId);
  const currentSettingConfig: any[] = yield select(getSettingConfig, pluginId);

  // Update the evaluations when the queryID is changed by changing the
  // URL or selecting new query from the query pane
  yield put(initFormEvaluations(currentEditorConfig, currentSettingConfig, id));

  const allPlugins = yield select(getPlugins);
  let uiComponent = UIComponentTypes.DbEditorForm;
  if (!!pluginId) uiComponent = getUIComponent(pluginId, allPlugins);

  // If config exists
  if (currentEditorConfig) {
    // Get initial values
    configInitialValues = yield call(
      getConfigInitialValues,
      currentEditorConfig,
      uiComponent === UIComponentTypes.UQIDbEditorForm,
    );
  }

  if (currentSettingConfig) {
    const settingInitialValues = yield call(
      getConfigInitialValues,
      currentSettingConfig,
      uiComponent === UIComponentTypes.UQIDbEditorForm,
    );
    configInitialValues = merge(configInitialValues, settingInitialValues);
  }

  // Merge the initial values and action.
  const formInitialValues = merge(configInitialValues, action);

  // Set the initialValues in the state for redux-form lib
  yield put(initialize(QUERY_EDITOR_FORM_NAME, formInitialValues));

  if (uiComponent === UIComponentTypes.UQIDbEditorForm) {
    // Once the initial values are set, we can run the evaluations based on them.
    yield put(
      startFormEvaluations(
        id,
        formInitialValues.actionConfiguration,
        action.datasource.id,
        pluginId,
      ),
    );
  }

  yield put(
    updateReplayEntity(
      formInitialValues.id,
      formInitialValues,
      ENTITY_TYPE.ACTION,
    ),
  );
}

function* formValueChangeSaga(
  actionPayload: ReduxActionWithMeta<string, { field: string; form: string }>,
) {
  const { field, form } = actionPayload.meta;
  if (field === "dynamicBindingPathList" || field === "name") return;
  if (form !== QUERY_EDITOR_FORM_NAME) return;
  const { values } = yield select(getFormData, QUERY_EDITOR_FORM_NAME);

  if (field === "datasource.id") {
    const datasource = yield select(getDatasource, actionPayload.payload);

    // Update the datasource not just the datasource id.
    yield put(
      setActionProperty({
        actionId: values.id,
        propertyName: "datasource",
        value: datasource,
      }),
    );

    // Update the datasource of the form as well
    yield put(autofill(QUERY_EDITOR_FORM_NAME, "datasource", datasource));

    AnalyticsUtil.logEvent("SWITCH_DATASOURCE");

    return;
  }

  if (
    actionPayload.type === ReduxFormActionTypes.ARRAY_REMOVE ||
    actionPayload.type === ReduxFormActionTypes.ARRAY_PUSH
  ) {
    const value = get(values, field);
    yield put(
      setActionProperty({
        actionId: values.id,
        propertyName: field,
        value,
      }),
    );
  } else {
    yield put(
      setActionProperty({
        actionId: values.id,
        propertyName: field,
        value: actionPayload.payload,
      }),
    );
  }
  yield put(updateReplayEntity(values.id, values, ENTITY_TYPE.ACTION));
}

function* handleQueryCreatedSaga(actionPayload: ReduxAction<QueryAction>) {
  const {
    actionConfiguration,
    id,
    pluginId,
    pluginType,
  } = actionPayload.payload;
  if (pluginType === PluginType.DB || pluginType === PluginType.REMOTE) {
    yield put(initialize(QUERY_EDITOR_FORM_NAME, actionPayload.payload));
    const applicationId: string = yield select(getCurrentApplicationId);
    const pageId: string = yield select(getCurrentPageId);
    const pluginTemplates = yield select(getPluginTemplates);
    const queryTemplate = pluginTemplates[pluginId];
    // Do not show template view if the query has body(code) or if there are no templates
    const showTemplate = !(
      !!actionConfiguration.body ||
      !!actionConfiguration.formData?.body ||
      isEmpty(queryTemplate)
    );
    history.replace(
      QUERIES_EDITOR_ID_URL(applicationId, pageId, id, {
        editName: "true",
        showTemplate,
        from: "datasources",
      }),
    );
  }
}

function* handleDatasourceCreatedSaga(actionPayload: ReduxAction<Datasource>) {
  const plugin = yield select(getPlugin, actionPayload.payload.pluginId);
  // Only look at db plugins
  if (plugin.type !== PluginType.DB && plugin.type !== PluginType.REMOTE)
    return;

  const pageId = yield select(getCurrentPageId);
  const applicationId = yield select(getCurrentApplicationId);

  yield put(
    initialize(DATASOURCE_DB_FORM, _.omit(actionPayload.payload, "name")),
  );
  history.push(
    DATA_SOURCES_EDITOR_ID_URL(
      applicationId,
      pageId,
      actionPayload.payload.id,
      { from: "datasources", ...getQueryParams() },
    ),
  );
}

function* handleNameChangeSaga(
  action: ReduxAction<{ id: string; name: string }>,
) {
  yield put(change(QUERY_EDITOR_FORM_NAME, "name", action.payload.name));
}

function* handleNameChangeSuccessSaga(
  action: ReduxAction<{ actionId: string }>,
) {
  const { actionId } = action.payload;
  const actionObj = yield select(getAction, actionId);
  yield take(ReduxActionTypes.FETCH_ACTIONS_FOR_PAGE_SUCCESS);
  if (!actionObj) {
    // Error case, log to sentry
    Toaster.show({
      text: createMessage(ERROR_ACTION_RENAME_FAIL, ""),
      variant: Variant.danger,
    });

    Sentry.captureException(
      new Error(createMessage(ERROR_ACTION_RENAME_FAIL, "")),
      {
        extra: {
          actionId: actionId,
        },
      },
    );
    return;
  }
  if (actionObj.pluginType === PluginType.DB) {
    const params = getQueryParams();
    if (params.editName) {
      params.editName = "false";
    }
    const applicationId = yield select(getCurrentApplicationId);
    const pageId = yield select(getCurrentPageId);
    history.replace(
      QUERIES_EDITOR_ID_URL(applicationId, pageId, actionId, params),
    );
  }
}

function* createNewQueryForDatasourceSaga(
  action: ReduxAction<{
    pageId: string;
    datasourceId: string;
    from: EventLocation;
  }>,
) {
  const { datasourceId, pageId } = action.payload;
  if (!datasourceId) return;
  const datasource: Datasource = yield select(getDatasource, datasourceId);
  const actions: ActionDataState = yield select(getActions);

  const pageApiNames = actions
    .filter((a: ActionData) => a.config.pageId === pageId)
    .map((a: ActionData) => a.config.name);
  const newQueryName = getNextEntityName("Query", pageApiNames);
  const createActionPayload = {
    name: newQueryName,
    pageId,
    pluginId: datasource?.pluginId,
    datasource: {
      id: datasourceId,
    },
    eventData: {
      actionType: "Query",
      from: action.payload.from,
      dataSource: datasource.name,
    },
    actionConfiguration: {},
  };

  yield put(createActionRequest(createActionPayload));
}

function* handleNameChangeFailureSaga(
  action: ReduxAction<{ oldName: string }>,
) {
  yield put(change(QUERY_EDITOR_FORM_NAME, "name", action.payload.oldName));
}

export default function* root() {
  yield all([
    takeEvery(ReduxActionTypes.CREATE_ACTION_SUCCESS, handleQueryCreatedSaga),
    takeEvery(
      ReduxActionTypes.CREATE_DATASOURCE_SUCCESS,
      handleDatasourceCreatedSaga,
    ),
    takeEvery(ReduxActionTypes.QUERY_PANE_CHANGE, changeQuerySaga),
    takeEvery(ReduxActionTypes.SAVE_ACTION_NAME_INIT, handleNameChangeSaga),
    takeEvery(
      ReduxActionTypes.SAVE_ACTION_NAME_SUCCESS,
      handleNameChangeSuccessSaga,
    ),
    takeEvery(
      ReduxActionErrorTypes.SAVE_ACTION_NAME_ERROR,
      handleNameChangeFailureSaga,
    ),
    // Intercepting the redux-form change actionType
    takeEvery(ReduxFormActionTypes.VALUE_CHANGE, formValueChangeSaga),
    takeEvery(ReduxFormActionTypes.ARRAY_REMOVE, formValueChangeSaga),
    takeEvery(ReduxFormActionTypes.ARRAY_PUSH, formValueChangeSaga),
    takeEvery(
      ReduxActionTypes.CREATE_NEW_QUERY_ACTION,
      createNewQueryForDatasourceSaga,
    ),
  ]);
}