import { useState, useEffect } from 'react';
import { TableConfig, useTableManager } from '@/hooks/use-table-manager';
import { TableColumn } from '@/shared/types/common';
import { IRole, RolePageFilterParams } from '@/shared/types/role';
import { RoleStatus, useRoleStore } from '@/shared/api/stores/roleStore';
import { DEFAULT_ROLE_TABLE_HEAD } from '@/shared/_mock/_roles';
import React from 'react';

const roleConfig: TableConfig<IRole> = {
  initialData: [],
  defaultTableHead: DEFAULT_ROLE_TABLE_HEAD,
};

export function useRoleTable() {
  const [params, setParams] = useState<RolePageFilterParams>({
    page: 0,
    size: 20,
    sortBy: 'id',
    sortDirection: 'DESC',
  });

  const {
    roles,  
    totalElements,
    loading,
    error,
    fetchRoles,
    toggleRoleStatus,
    startCsvExport
  } = useRoleStore();

  useEffect(() => {
    fetchRoles(params);
  }, [params]);

  const tableManager = useTableManager<IRole>({
    ...roleConfig,
    initialData: roles || [],
  });

  useEffect(() => {
    if (tableManager.table.rowsPerPage > 0) {
      setParams(prev => ({
        ...prev,
        page: tableManager.table.page,
        size: tableManager.table.rowsPerPage,
      }));
    }
  }, [tableManager.table.page, tableManager.table.rowsPerPage]);

  const isValidDateInput = (value: any): boolean => {
    if (!value || typeof value !== 'string') return false;
    const date = new Date(value);
    return date instanceof Date && !isNaN(date.getTime());
  };
  
  const isValidFilterValue = (value: any): boolean => {
    return value !== null && value !== undefined && value !== '';
  };

  useEffect(() => {
    const baseParams: RolePageFilterParams = {
      page: tableManager.table.page || 0,
      size: tableManager.table.rowsPerPage || 20,
      sortBy: tableManager.table.orderBy || 'id',
      sortDirection: (tableManager.table.order.toLowerCase() as 'asc' | 'desc') === 'asc' ? 'ASC' : 'DESC'
    };

    const filterParams: Record<string, string | number> = {};

    Object.entries(tableManager.filters).forEach(([key, { value }]) => {
      if (key === 'createdAt' && isValidDateInput(value)) {
        const date = new Date(value);
        const year = date.getFullYear();
        const month = String(date.getMonth() + 1).padStart(2, '0');
        const day = String(date.getDate()).padStart(2, '0');
        filterParams[key] = `${year}-${month}-${day}T00:00:00`;
      } else if (isValidFilterValue(value)) {
        filterParams[key] = value;
      }
    });

    const newParams: RolePageFilterParams = {
      ...baseParams,
      ...filterParams
    };

    const paramsChanged = JSON.stringify(newParams) !== JSON.stringify(params);
    if (paramsChanged) {
      setParams(newParams);
    }
  }, [tableManager.filters, tableManager.table.orderBy, tableManager.table.order]);

  const handlePageChange = (event: React.MouseEvent<HTMLButtonElement> | null, newPage: number) => {
    setParams(prev => ({
      ...prev,
      page: newPage
    }));
  };

  const handleRowsPerPageChange = (event: React.ChangeEvent<HTMLInputElement>) => {
    const size = parseInt(event.target.value, 10);
    if (!isNaN(size) && size > 0) {
      setParams(prev => ({
        ...prev,
        size,
        page: 0
      }));
    }
  };

   const handleStartCsvExportRoles = () => {
    startCsvExport(params);
  };

  return {
    ...tableManager,
    loading,
    error,
    totalRoles: totalElements || 0,
    onPageChange: handlePageChange,
    page: params.page,
    onRowsPerPageChange: handleRowsPerPageChange,
    rowsPerPage: params.size,
    sortBy: params.sortBy || 'id',
    sortDirection: params.sortDirection || 'DESC',
    filteredData: roles,
    toggleRoleStatus,
    handleStartCsvExportRoles
  };
}