"use client";

import * as React from "react";

import {
  getCoreRowModel,
  useReactTable,
  type Header,
  type PaginationState,
} from "@tanstack/react-table";
import { useRouter } from "next/navigation";
import { toast } from "sonner";

import {
  DataTablePagination,
  DataTableShell,
  useDebouncedValue,
} from "@/app/dashboard/_components/data-table";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { TableCell } from "@/components/ui/table";

import { AccumulatorDetailsDialog } from "./accumulator-details-dialog";
import { createAccumulatorMasterColumns } from "./columns";
import { formatPlainAmount } from "@/lib/format/numbers";
import {
  buildAccumulatorMasterHref,
  DEFAULT_PAGE_SIZE,
} from "./constants";
import type {
  AccumulatorMasterDetails,
  AccumulatorMasterFilters,
  AccumulatorMasterRow,
} from "./schema";

type Props = {
  data: AccumulatorMasterRow[];
  detailsByIsin?: Record<string, AccumulatorMasterDetails>;
  filters: AccumulatorMasterFilters;
  totalCount: number;
  page: number;
  pageSize: number;
  pageCount: number;
};

export function AccumulatorMasterTable({
  data,
  detailsByIsin = {},
  filters,
  totalCount,
  page,
  pageSize,
  pageCount,
}: Props) {
  const router = useRouter();
  const [detailsOpen, setDetailsOpen] = React.useState(false);
  const [selectedIsin, setSelectedIsin] = React.useState<string | null>(null);
  const [isinDraft, setIsinDraft] = React.useState(filters.isin);
  const [nameDraft, setNameDraft] = React.useState(filters.name);
  const debouncedIsin = useDebouncedValue(isinDraft);
  const debouncedName = useDebouncedValue(nameDraft);

  const navigate = React.useCallback(
    (
      next: {
        isin?: string;
        name?: string;
        page?: number;
        pageSize?: number;
      },
      options?: { replace?: boolean },
    ) => {
      const href = buildAccumulatorMasterHref({
        isin: next.isin ?? filters.isin,
        name: next.name ?? filters.name,
        page: next.page ?? page,
        pageSize: next.pageSize ?? pageSize,
      });

      if (options?.replace) {
        router.replace(href, { scroll: false });
        return;
      }

      router.push(href, { scroll: false });
    },
    [filters.isin, filters.name, page, pageSize, router],
  );

  React.useEffect(() => {
    setIsinDraft(filters.isin);
  }, [filters.isin]);

  React.useEffect(() => {
    setNameDraft(filters.name);
  }, [filters.name]);

  React.useEffect(() => {
    const normalizedIsin = debouncedIsin.trim();
    if (normalizedIsin === filters.isin) {
      return;
    }

    navigate({ isin: normalizedIsin, page: 1 }, { replace: true });
  }, [debouncedIsin, filters.isin, navigate]);

  React.useEffect(() => {
    const normalizedName = debouncedName.trim();
    if (normalizedName === filters.name) {
      return;
    }

    navigate({ name: normalizedName, page: 1 }, { replace: true });
  }, [debouncedName, filters.name, navigate]);

  const columns = React.useMemo(
    () =>
      createAccumulatorMasterColumns({
        onViewDetails: (row) => {
          setSelectedIsin(row.isin);
          setDetailsOpen(true);
        },
      }),
    [],
  );

  const pagination = React.useMemo<PaginationState>(
    () => ({
      pageIndex: Math.max(page - 1, 0),
      pageSize,
    }),
    [page, pageSize],
  );

  const table = useReactTable({
    data,
    columns,
    state: { pagination },
    pageCount,
    manualPagination: true,
    onPaginationChange: (updater) => {
      const next = typeof updater === "function" ? updater(pagination) : updater;
      const nextPageSize = next.pageSize > 0 ? next.pageSize : pageSize;
      const nextPage = nextPageSize !== pageSize ? 1 : Math.max(next.pageIndex + 1, 1);

      navigate({
        page: nextPage,
        pageSize: nextPageSize,
      });
    },
    getCoreRowModel: getCoreRowModel(),
    getRowId: (row) => row.isin,
  });

  const details = selectedIsin ? (detailsByIsin[selectedIsin] ?? null) : null;

  return (
    <div className="space-y-4">
      <div className="rounded-lg border bg-muted/10 p-3">
        <p className="font-medium text-sm">
          {formatPlainAmount(totalCount)} record{totalCount === 1 ? "" : "s"}
        </p>
        <p className="text-muted-foreground text-xs">
          Filters search the full accumulator master table via Yii.
        </p>
      </div>

      <DataTableShell
        table={table}
        columnCount={columns.length}
        emptyMessage="No records found."
        renderFilterCell={(header) =>
          renderFilterCell(header, isinDraft, setIsinDraft, nameDraft, setNameDraft)
        }
      />

      <DataTablePagination
        table={table}
        totalRows={totalCount}
        itemNoun="accumulator"
        idPrefix="accumulator-master"
        pageSizes={[25, DEFAULT_PAGE_SIZE, 100]}
      />

      <div className="flex justify-end border-t pt-4">
        <Button
          type="button"
          onClick={() =>
            toast.success("Accumulator priority updated (mock — connect API when ready)")
          }
        >
          Update priority
        </Button>
      </div>

      <AccumulatorDetailsDialog
        open={detailsOpen}
        onOpenChange={setDetailsOpen}
        isin={selectedIsin ?? undefined}
        details={details}
      />
    </div>
  );
}

function renderFilterCell(
  header: Header<AccumulatorMasterRow, unknown>,
  isinDraft: string,
  setIsinDraft: React.Dispatch<React.SetStateAction<string>>,
  nameDraft: string,
  setNameDraft: React.Dispatch<React.SetStateAction<string>>,
) {
  if (header.column.id === "isin") {
    return (
      <TableCell key={header.id} className="p-2">
        <Input
          value={isinDraft}
          onChange={(event) => setIsinDraft(event.target.value)}
          placeholder="Search ISIN"
          className="h-8 bg-background font-mono text-xs"
        />
      </TableCell>
    );
  }

  if (header.column.id === "name") {
    return (
      <TableCell key={header.id} className="p-2">
        <Input
          value={nameDraft}
          onChange={(event) => setNameDraft(event.target.value)}
          placeholder="Name"
          className="h-8 bg-background text-xs"
        />
      </TableCell>
    );
  }

  return null;
}