"use client"

import * as React from "react"
import {
  flexRender,
  getCoreRowModel,
  useReactTable,
  type PaginationState,
} from "@tanstack/react-table"
import { useRouter } from "next/navigation"

import {
  DataTablePagination,
  useDebouncedValue,
} from "@/app/dashboard/_components/data-table"
import { Input } from "@/components/ui/input"
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table"
import { SettingsSelect } from "@/components/settings/ui/settings-select"
import { SETTINGS_INPUT_CLASS } from "@/components/settings/constants"
import { cn } from "@/lib/utils"

import {
  YES_NO_FILTER_OPTIONS,
  buildIsinAssetsHref,
  DEFAULT_PAGE_SIZE,
} from "./constants"
import { createIsinAssetColumns } from "./columns"
import type { IsinAssetRow } from "./schema"
import { formatPlainAmount } from "@/lib/format/numbers"

type Props = {
  data: IsinAssetRow[]
  filters: {
    isin: string
    assetClassCode: string
    inPortfolio: string
  }
  totalCount: number
  page: number
  pageSize: number
  pageCount: number
}

const filterInputClass = cn(SETTINGS_INPUT_CLASS, "h-8")

export function IsinAssetsTable({
  data,
  filters,
  totalCount,
  page,
  pageSize,
  pageCount,
}: Props) {
  const router = useRouter()
  const [isinDraft, setIsinDraft] = React.useState(filters.isin)
  const [assetClassCodeDraft, setAssetClassCodeDraft] = React.useState(
    filters.assetClassCode,
  )
  const [inPortfolioFilter, setInPortfolioFilter] = React.useState(
    filters.inPortfolio || "all",
  )
  const debouncedIsin = useDebouncedValue(isinDraft)
  const debouncedAssetClassCode = useDebouncedValue(assetClassCodeDraft)

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

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

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

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

  React.useEffect(() => {
    setAssetClassCodeDraft(filters.assetClassCode)
  }, [filters.assetClassCode])

  React.useEffect(() => {
    setInPortfolioFilter(filters.inPortfolio || "all")
  }, [filters.inPortfolio])

  React.useEffect(() => {
    const normalized = debouncedIsin.trim()
    if (normalized === filters.isin) return
    navigate({ isin: normalized, page: 1 }, { replace: true })
  }, [debouncedIsin, filters.isin, navigate])

  React.useEffect(() => {
    const normalized = debouncedAssetClassCode.trim()
    if (normalized === filters.assetClassCode) return
    navigate({ assetClassCode: normalized, page: 1 }, { replace: true })
  }, [debouncedAssetClassCode, filters.assetClassCode, navigate])

  const columns = React.useMemo(() => createIsinAssetColumns(), [])

  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: (r) => r.id,
  })

  const start = totalCount === 0 ? 0 : (page - 1) * pageSize + 1
  const end = Math.min(page * pageSize, totalCount)
  const headers = table.getHeaderGroups()[0]?.headers ?? []

  return (
    <div className="space-y-4">
      <p className="text-sm text-muted-foreground">
        Displaying {start}–{end} of {formatPlainAmount(totalCount)} results.
      </p>
      <div className="overflow-x-auto rounded-lg border bg-card">
        <Table>
          <TableHeader>
            <TableRow className="bg-muted/40 hover:bg-muted/40">
              {headers.map((h) => (
                <TableHead key={h.id} className="h-10 px-3 whitespace-nowrap">
                  {flexRender(h.column.columnDef.header, h.getContext())}
                </TableHead>
              ))}
            </TableRow>
            <TableRow className="bg-muted/20 hover:bg-muted/20">
              {headers.map((h) => {
                const colId = h.column.id
                if (colId === "options") {
                  return <TableHead key={h.id} className="px-3 py-2" />
                }
                if (colId === "isin") {
                  return (
                    <TableHead key={h.id} className="px-3 py-2">
                      <Input
                        className={filterInputClass}
                        placeholder="Filter"
                        value={isinDraft}
                        onChange={(e) => setIsinDraft(e.target.value)}
                      />
                    </TableHead>
                  )
                }
                if (colId === "assetClassCode") {
                  return (
                    <TableHead key={h.id} className="px-3 py-2">
                      <Input
                        className={filterInputClass}
                        placeholder="Filter"
                        value={assetClassCodeDraft}
                        onChange={(e) => setAssetClassCodeDraft(e.target.value)}
                      />
                    </TableHead>
                  )
                }
                if (colId === "inPortfolio") {
                  return (
                    <TableHead key={h.id} className="px-3 py-2">
                      <SettingsSelect
                        className={filterInputClass}
                        value={inPortfolioFilter}
                        onValueChange={(v) => {
                          setInPortfolioFilter(v)
                          navigate(
                            {
                              inPortfolio: v === "all" ? "" : v,
                              page: 1,
                            },
                            { replace: true },
                          )
                        }}
                        options={YES_NO_FILTER_OPTIONS}
                        placeholder="All"
                      />
                    </TableHead>
                  )
                }
                return <TableHead key={h.id} className="px-3 py-2" />
              })}
            </TableRow>
          </TableHeader>
          <TableBody>
            {table.getRowModel().rows.length ? (
              table.getRowModel().rows.map((row) => (
                <TableRow key={row.id}>
                  {row.getVisibleCells().map((cell) => (
                    <TableCell key={cell.id} className="px-3 py-2.5">
                      {flexRender(cell.column.columnDef.cell, cell.getContext())}
                    </TableCell>
                  ))}
                </TableRow>
              ))
            ) : (
              <TableRow>
                <TableCell
                  colSpan={columns.length}
                  className="h-24 text-center text-muted-foreground"
                >
                  No records found.
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </div>
      <DataTablePagination
        table={table}
        totalRows={totalCount}
        itemNoun="record"
        idPrefix="isin-assets"
        pageSizes={[10, 20, DEFAULT_PAGE_SIZE, 100]}
      />
    </div>
  )
}