import { azureHeaders } from "../../../actions/core/headers";
import { relayGet } from "../middleware/relayForwarding";
import { RELAY_POLICY_BOUNDED_READ } from "../middleware/relayPolicyPresets";

import { statusValues } from "../../../components/utils/caseStagesObj";

export default async function ApiProxy(req, res) {
    const queryUrl =
        "incidents?$apply=groupby((statuscode,pinswg_appealcasetype),aggregate($count as caseCount))&$filter=pinswg_publishtoweb eq true";

    return relayGet({
        queryUrl,
        res,
        requestOptionsBuilder: (accessToken) => azureHeaders(accessToken),
        relayPolicy: RELAY_POLICY_BOUNDED_READ,
        transformData: (data) => {
            const countsByStatusCode = (data.value || []).reduce(
                (acc, item) => {
                    const statuscode = item.statuscode;

                    if (!acc[statuscode]) {
                        acc[statuscode] = {
                            caseCount: 0,
                            appealTypes: []
                        };
                    }

                    acc[statuscode].caseCount += item.caseCount || 0;

                    acc[statuscode].appealTypes.push({
                        value:
                            item[
                                "pinswg_appealcasetype@OData.Community.Display.V1.FormattedValue"
                            ] || "",
                        appealType: item.pinswg_appealcasetype,
                        caseCount: item.caseCount || 0
                    });

                    return acc;
                },
                {}
            );

            return statusValues.map((status) => ({
                ...status,
                caseCount: countsByStatusCode[status.statuscode] || 0,
                appealTypes:
                    countsByStatusCode[status.statuscode]?.appealTypes || []
            }));
        },
        errorResponse: {
            status: 400,
            code: "STATUS_COUNTS_FETCH_FAILED",
            message: "Failed to fetch status counts"
        }
    });
}