"use client";

import type { ColumnDef } from "@tanstack/react-table";
import { displayCell, standardAssetLeadColumns } from "@/app/customer/_lib/asset-column-builders";

import type {
  CustomerRowPermissions,
  StructurePagePermissions,
} from "@/app/customer/_lib/customer-api-permissions";
import { resolveRowActionPermissions } from "@/app/customer/_lib/customer-api-permissions";
import {
  labelForGridColumn,
  type CustomerGridColumn,
} from "@/app/customer/_lib/customer-grid-columns";
import { CustomerSortableHeader } from "@/components/customer/customer-table-primitives";
import {
  TransactionRowStockActions,
  type StockChildMenuItem,
} from "@/components/form/transaction-workspace/list-table-form-actions";
import { formatAmount } from "@/lib/format/numbers";
import { cn } from "@/lib/utils";
import { buildStructureSaleFormHref } from "@/app/customer/[tenant]/structure/_lib/structure-form-helpers";

import type { StructureRow } from "./schema";

export const STRUCTURE_OPTIONS_COLUMN_ID = "options";

export const FALLBACK_STRUCTURE_GRID_COLUMNS: CustomerGridColumn[] = [
  { key: "uid_title", label: "Ref. ID", defaultVisible: true },
  { key: "placement_date", label: "Placement Date", defaultVisible: true },
  { key: "bank", label: "Bank", defaultVisible: true },
  { key: "security_ticker_isin", label: "Security Ticker/ISIN", defaultVisible: true },
  { key: "structure_name", label: "Structure Name", defaultVisible: true },
  { key: "category", label: "Type", defaultVisible: true },
  { key: "transaction_type", label: "Transaction", defaultVisible: true },
  { key: "currency", label: "Currency", defaultVisible: true },
  { key: "amount_formatted", label: "Amount", defaultVisible: true },
];

export type StructureColumnFormatOptions = {
  listPath?: string;
  pagePermissions?: StructurePagePermissions;
};

function canShowStructureSaleAction(
  rowFlag: boolean | undefined,
  rowUrl: string | null | undefined,
  pageFlag: boolean | undefined,
  row: StructureRow,
): boolean {
  if (rowFlag || rowUrl) {
    return true;
  }

  return Boolean(pageFlag && row.isStructurePurchase === true);
}

function buildStructureChildMenuItems(
  row: StructureRow,
  listPath?: string,
  pagePermissions?: StructurePagePermissions,
): StockChildMenuItem[] {
  if (!listPath || !row.id || row.isStructurePurchase === false) {
    return [];
  }

  const permissions = row.permissions;
  if (
    !canShowStructureSaleAction(
      permissions?.create_sale,
      row.saleUrl,
      pagePermissions?.sale_create ?? pagePermissions?.create,
      row,
    )
  ) {
    return [];
  }

  return [
    {
      key: "sale",
      label: "Sale",
      href: buildStructureSaleFormHref(listPath, row.id),
    },
  ];
}


export function createStructureColumns(
  gridColumns: CustomerGridColumn[] | undefined,
  onView: (row: StructureRow) => void,
  onEdit: ((row: StructureRow) => void) | undefined,
  options: StructureColumnFormatOptions = {},
): ColumnDef<StructureRow>[] {
  return [
    ...standardAssetLeadColumns<StructureRow>({ gridColumns }),
    {
      id: "security_ticker_isin",
      accessorKey: "securityTickerIsin",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "security_ticker_isin", "Security Ticker/ISIN")}
          column={column}
        />
      ),
      cell: ({ row }) => (
        <span className="text-sm">{displayCell(row.original.securityTickerIsin)}</span>
      ),
    },
    {
      id: "structure_name",
      accessorKey: "structureName",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "structure_name", "Structure Name")}
          column={column}
        />
      ),
      cell: ({ row }) => <span className="text-sm">{displayCell(row.original.structureName)}</span>,
    },
    {
      id: "category",
      accessorKey: "category",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "category", "Type")}
          column={column}
        />
      ),
      cell: ({ row }) => <span className="text-sm">{displayCell(row.original.category)}</span>,
    },
    {
      id: "transaction_type",
      accessorKey: "transaction",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "transaction_type", "Transaction")}
          column={column}
        />
      ),
      cell: ({ row }) => <span className="text-sm">{displayCell(row.original.transaction)}</span>,
    },
    {
      id: "currency",
      accessorKey: "currency",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "currency", "Currency")}
          column={column}
        />
      ),
      cell: ({ row }) => <span className="text-sm">{displayCell(row.original.currency)}</span>,
    },
    {
      id: "amount_formatted",
      accessorKey: "amount",
      header: ({ column }) => (
        <CustomerSortableHeader
          label={labelForGridColumn(gridColumns, "amount_formatted", "Amount")}
          column={column}
        />
      ),
      cell: ({ row }) => (
        <span
          className={cn(
            "block text-right font-medium text-sm tabular-nums",
            row.original.amountNegative || row.original.amount < 0
              ? "text-red-600 dark:text-red-400"
              : row.original.amount > 0
                ? "text-green-600 dark:text-green-400"
                : "",
          )}
        >
          {row.original.amountDisplay ?? formatAmount(row.original.amount)}
        </span>
      ),
    },
    {
      id: STRUCTURE_OPTIONS_COLUMN_ID,
      header: () => <span className="font-medium text-sm">Options</span>,
      enableHiding: false,
      cell: ({ row }) => {
        const resolvedPermissions = resolveRowActionPermissions(
          row.original.permissions as CustomerRowPermissions,
          { allowViewFallback: false, allowEditFallback: false },
        );
        const canView = resolvedPermissions.canView || Boolean(row.original.viewUrl);
        const canEdit = resolvedPermissions.canEdit || Boolean(row.original.updateUrl);
        const childMenuItems = buildStructureChildMenuItems(
          row.original,
          options.listPath,
          options.pagePermissions,
        );

        return (
          <TransactionRowStockActions
            rowName={row.original.structureName || row.original.refId}
            canView={canView}
            canEdit={canEdit && Boolean(onEdit)}
            attachmentUrl={row.original.attachmentUrl}
            childMenuItems={childMenuItems}
            onView={() => onView(row.original)}
            onEdit={onEdit ? () => onEdit(row.original) : undefined}
          />
        );
      },
      enableSorting: false,
    },
  ];
}