import { apiPost } from "@/fd/fd-toolbox/api/api-client";
import { ApiResponse } from "@/fd/fd-toolbox/api/api-response";
import { FdTableComponent } from "@/meta/table/table-models";
import { notify } from "@/fd/fd-toolbox/notifications";
import { routes } from "@/fd/fd-toolbox/routing/routes";
import { createAndDownloadCsv } from "@/lm/lead/actions/export-leads-action/create-and-download-csv";
import { WithIdAndStringIndexer, withIdProps } from "@/fd/fd-toolbox/types/resource-with-id";
import { leadProps } from "@/leads/props/lead-props";
import { getUiResourceMeta } from "@/meta/ui-meta-providers";
import { resourceNames } from "@/fd/fd-toolbox/resources/resource-names";
import { isString } from "@/fd/fd-toolbox/types/ensure-type";

const notifications = {
    noItemsSelected: "Please select at least one item to export",
    exportCompleted: "Items were exported successfully",
};

const leadEmailList = leadProps.leadEmailList;

export async function exportLeadInCSVFile(table: FdTableComponent | undefined) {
    if (!table) return;

    const tableSelectedRows = table.getSelectedRows();

    if (!tableSelectedRows?.length) {
        notify(notifications.noItemsSelected);
        return;
    }

    const uiResourceMeta = await getUiResourceMeta(resourceNames.lead);

    const items = tableSelectedRows.map(({ item }: { item: WithIdAndStringIndexer }) => {
        const processedItem = {
            ...item,
            ...(Array.isArray(item[leadEmailList])
                ? {
                      [leadEmailList]: item[leadEmailList]
                          .map((emailObj: { email: string }) => emailObj.email)
                          .join(", "),
                  }
                : {}),
        };

        const result: WithIdAndStringIndexer = { id: "" };
        const idValue = isString(processedItem.id) ? processedItem.id : String(processedItem.id ?? "");
        let idDisplayName = withIdProps.id;

        for (const [propertyName, value] of Object.entries(processedItem)) {
            const propertyMeta = uiResourceMeta.resourceMeta.properties[propertyName];
            const displayName = propertyMeta?.displayName || propertyName;

            if (propertyName === withIdProps.id) {
                idDisplayName = displayName;
                continue;
            }

            result[displayName] = String(value ?? "");
        }

        result[idDisplayName] = idValue;
        result.id = idValue;

        return result;
    });

    const response = await apiPost<ApiResponse<string>>(routes.export, { items });

    if (response?.data) {
        createAndDownloadCsv(response.data);
        notify(notifications.exportCompleted);
    }
}