import React, { useState, useMemo, useEffect, useCallback, useRef } from 'react';
import { useNavigate, useSearchParams } from 'react-router-dom';
import { useTranslation } from 'react-i18next';
import { useSupportPlanList } from '../hooks/useSupportPlan';
import * as XLSX from 'xlsx';
import { 
  FaPlus, FaFilter, FaSync, FaEye, FaChevronLeft, FaChevronRight,
  FaFileContract, FaTimes, FaSave, FaStar, FaTrash, FaEdit,
  FaCheckSquare, FaSquare, FaFileExport, FaFileExcel, FaFileCsv,
  FaDownload, FaShieldAlt, FaCog, FaWrench
} from 'react-icons/fa';
import LinkField from '../components/LinkField';
import ListPagination from '../components/ListPagination';
import { buildDateRangeFilters, toFrappeFilterArray } from '../utils/listFilterUtils';

type ExportFormat = 'csv' | 'excel';
type ExportScope = 'selected' | 'all_on_page' | 'all_with_filters';

interface ExportModalProps {
  isOpen: boolean;
  onClose: () => void;
  selectedCount: number;
  totalCount: number;
  pageCount: number;
  onExport: (scope: ExportScope, format: ExportFormat, columns: string[]) => void;
  isExporting: boolean;
  exportColumns: Array<{key: string, label: string, default: boolean}>;
}

const ExportModal: React.FC<ExportModalProps> = ({
  isOpen, onClose, selectedCount, totalCount, pageCount, onExport, isExporting, exportColumns
}) => {
  const { t } = useTranslation();
  const [scope, setScope] = useState<ExportScope>(selectedCount > 0 ? 'selected' : 'all_with_filters');
  const [format, setFormat] = useState<ExportFormat>('csv');
  const [selectedColumns, setSelectedColumns] = useState<string[]>(exportColumns.filter(c => c.default).map(c => c.key));

  useEffect(() => { setScope(selectedCount > 0 ? 'selected' : 'all_with_filters'); }, [selectedCount]);

  const toggleColumn = (key: string) => setSelectedColumns(prev => prev.includes(key) ? prev.filter(k => k !== key) : [...prev, key]);
  const selectAllColumns = () => setSelectedColumns(exportColumns.map(c => c.key));
  const selectDefaultColumns = () => setSelectedColumns(exportColumns.filter(c => c.default).map(c => c.key));

  if (!isOpen) return null;

  return (
    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-[70] p-4">
      <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl max-w-2xl w-full max-h-[90vh] overflow-hidden animate-scale-in">
        <div className="bg-gradient-to-r from-indigo-500 to-indigo-600 px-6 py-4">
          <div className="flex items-center justify-between">
            <div className="flex items-center gap-3">
              <FaFileExport className="text-white text-xl" />
              <h3 className="text-lg font-semibold text-white">{t('supportPlans.export.title')}</h3>
            </div>
            <button onClick={onClose} className="text-white/80 hover:text-white transition-colors" disabled={isExporting}><FaTimes size={20} /></button>
          </div>
        </div>
        <div className="p-6 overflow-y-auto max-h-[calc(90vh-180px)]">
          <div className="mb-6">
            <h4 className="text-sm font-semibold text-gray-700 dark:text-gray-300 mb-3">{t('supportPlans.export.selectData')}</h4>
            <div className="space-y-2">
              <label className={`flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-all ${scope === 'selected' ? 'border-indigo-500 bg-indigo-50 dark:bg-indigo-900/20' : 'border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50'} ${selectedCount === 0 ? 'opacity-50 cursor-not-allowed' : ''}`}>
                <input type="radio" name="scope" value="selected" checked={scope === 'selected'} onChange={() => setScope('selected')} disabled={selectedCount === 0} className="text-indigo-600" />
                <div className="flex-1"><div className="font-medium text-gray-900 dark:text-white">{t('supportPlans.export.selectedRows')}</div><div className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.export.selectedCount', { count: selectedCount })}</div></div>
                {selectedCount > 0 && <span className="bg-indigo-100 dark:bg-indigo-900/40 text-indigo-700 dark:text-indigo-300 px-2 py-1 rounded text-xs font-medium">{selectedCount} selected</span>}
              </label>
              <label className={`flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-all ${scope === 'all_on_page' ? 'border-indigo-500 bg-indigo-50 dark:bg-indigo-900/20' : 'border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50'}`}>
                <input type="radio" name="scope" value="all_on_page" checked={scope === 'all_on_page'} onChange={() => setScope('all_on_page')} className="text-indigo-600" />
                <div className="flex-1"><div className="font-medium text-gray-900 dark:text-white">{t('supportPlans.export.currentPage')}</div><div className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.export.currentPageCount', { count: pageCount })}</div></div>
                <span className="bg-blue-100 dark:bg-blue-900/40 text-blue-700 dark:text-blue-300 px-2 py-1 rounded text-xs font-medium">{pageCount} rows</span>
              </label>
              <label className={`flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-all ${scope === 'all_with_filters' ? 'border-indigo-500 bg-indigo-50 dark:bg-indigo-900/20' : 'border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50'}`}>
                <input type="radio" name="scope" value="all_with_filters" checked={scope === 'all_with_filters'} onChange={() => setScope('all_with_filters')} className="text-indigo-600" />
                <div className="flex-1"><div className="font-medium text-gray-900 dark:text-white">{t('supportPlans.export.allWithFilters')}</div><div className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.export.allWithFiltersCount', { count: totalCount })}</div></div>
                <span className="bg-purple-100 dark:bg-purple-900/40 text-purple-700 dark:text-purple-300 px-2 py-1 rounded text-xs font-medium">{totalCount} total</span>
              </label>
            </div>
          </div>
          <div className="mb-6">
            <h4 className="text-sm font-semibold text-gray-700 dark:text-gray-300 mb-3">{t('supportPlans.export.exportFormat')}</h4>
            <div className="flex gap-3">
              <label className={`flex-1 flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-all ${format === 'csv' ? 'border-indigo-500 bg-indigo-50 dark:bg-indigo-900/20' : 'border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50'}`}>
                <input type="radio" name="format" value="csv" checked={format === 'csv'} onChange={() => setFormat('csv')} className="text-indigo-600" />
                <FaFileCsv className="text-indigo-600 text-xl" /><div><div className="font-medium text-gray-900 dark:text-white">{t('supportPlans.export.csv')}</div><div className="text-xs text-gray-500 dark:text-gray-400">{t('supportPlans.export.csvDesc')}</div></div>
              </label>
              <label className={`flex-1 flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-all ${format === 'excel' ? 'border-indigo-500 bg-indigo-50 dark:bg-indigo-900/20' : 'border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50'}`}>
                <input type="radio" name="format" value="excel" checked={format === 'excel'} onChange={() => setFormat('excel')} className="text-indigo-600" />
                <FaFileExcel className="text-green-700 text-xl" /><div><div className="font-medium text-gray-900 dark:text-white">{t('supportPlans.export.excel')}</div><div className="text-xs text-gray-500 dark:text-gray-400">{t('supportPlans.export.excelDesc')}</div></div>
              </label>
            </div>
          </div>
          <div>
            <div className="flex items-center justify-between mb-3">
              <h4 className="text-sm font-semibold text-gray-700 dark:text-gray-300">{t('supportPlans.export.columnsToExport')}</h4>
              <div className="flex gap-2"><button onClick={selectAllColumns} className="text-xs text-blue-600 dark:text-blue-400 hover:underline">{t('supportPlans.export.selectAll')}</button><span className="text-gray-300">|</span><button onClick={selectDefaultColumns} className="text-xs text-blue-600 dark:text-blue-400 hover:underline">{t('supportPlans.export.resetToDefault')}</button></div>
            </div>
            <div className="grid grid-cols-2 md:grid-cols-3 gap-2 max-h-48 overflow-y-auto p-3 bg-gray-50 dark:bg-gray-900/50 rounded-lg">
              {exportColumns.map((col) => (
                <label key={col.key} className={`flex items-center gap-2 p-2 rounded cursor-pointer transition-all ${selectedColumns.includes(col.key) ? 'bg-indigo-100 dark:bg-indigo-900/30 text-indigo-800 dark:text-indigo-300' : 'hover:bg-gray-100 dark:hover:bg-gray-800 text-gray-700 dark:text-gray-400'}`}>
                  <input type="checkbox" checked={selectedColumns.includes(col.key)} onChange={() => toggleColumn(col.key)} className="rounded text-indigo-600" /><span className="text-sm truncate">{col.label}</span>
                </label>
              ))}
            </div>
            <p className="text-xs text-gray-500 dark:text-gray-400 mt-2">{t('supportPlans.export.columnsSelected', { count: selectedColumns.length })}</p>
          </div>
        </div>
        <div className="px-6 py-4 bg-gray-50 dark:bg-gray-900/50 border-t border-gray-200 dark:border-gray-700 flex justify-between items-center">
          <div className="text-sm text-gray-600 dark:text-gray-400">
            {scope === 'selected' && t('supportPlans.export.exportingSelected', { count: selectedCount })}
            {scope === 'all_on_page' && t('supportPlans.export.exportingPage', { count: pageCount })}
            {scope === 'all_with_filters' && t('supportPlans.export.exportingAll', { count: totalCount })}
          </div>
          <div className="flex gap-3">
            <button onClick={onClose} className="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg" disabled={isExporting}>{t('common.cancel')}</button>
            <button onClick={() => onExport(scope, format, selectedColumns)} disabled={selectedColumns.length === 0 || isExporting} className="px-4 py-2 text-sm font-medium text-white bg-indigo-600 hover:bg-indigo-700 rounded-lg flex items-center gap-2 disabled:opacity-50">
              {isExporting ? <><div className="animate-spin rounded-full h-4 w-4 border-b-2 border-white"></div>{t('supportPlans.export.exporting')}</> : <><FaDownload />{t('supportPlans.export.exportButton')}</>}
            </button>
          </div>
        </div>
      </div>
    </div>
  );
};

const getContractWarrantyStyle = (type: string) => {
  switch (type?.toLowerCase()) {
    case 'contract': return 'bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-300';
    case 'warranty': return 'bg-purple-100 text-purple-800 dark:bg-purple-900/30 dark:text-purple-300';
    default: return 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300';
  }
};

const getStatusStyle = (status: string) => {
  switch (status?.toLowerCase()) {
    case 'active': return 'bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-300';
    case 'inactive': return 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300';
    case 'expired': return 'bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-300';
    default: return 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300';
  }
};

const getFrequencyStyle = (frequency: string) => {
  switch (frequency?.toLowerCase()) {
    case 'monthly': return 'bg-cyan-100 text-cyan-800 dark:bg-cyan-900/30 dark:text-cyan-300';
    case 'quarterly': return 'bg-indigo-100 text-indigo-800 dark:bg-indigo-900/30 dark:text-indigo-300';
    case 'half-yearly': return 'bg-orange-100 text-orange-800 dark:bg-orange-900/30 dark:text-orange-300';
    case 'yearly': return 'bg-pink-100 text-pink-800 dark:bg-pink-900/30 dark:text-pink-300';
    default: return 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300';
  }
};

const SupportPlanList: React.FC = () => {
  const { t } = useTranslation();
  const navigate = useNavigate();
  
  const EXPORT_COLUMNS = [
    { key: 'name', label: t('supportPlans.planId'), default: true },
    { key: 'support_plan', label: t('supportPlans.table.planName'), default: true },
    { key: 'frequency', label: t('supportPlans.table.frequency'), default: true },
    { key: 'custom_contractwarranty', label: t('supportPlans.table.type'), default: true },
    { key: 'custom_contract_value', label: t('supportPlans.table.contractValue'), default: true },
    { key: 'war_status', label: t('supportPlans.table.warrantyStatus'), default: true },
    { key: 'service_contract_status', label: t('supportPlans.table.contractStatus'), default: true },
    { key: 'max_downtime_hrs', label: 'Max Downtime (hrs)', default: false },
    { key: 'penalty_factor', label: 'Penalty Factor', default: false },
    { key: 'asset', label: t('filters.asset'), default: false },
    { key: 'vendor', label: t('commonFields.supplier'), default: true },
    { key: 'warranty_start_date', label: t('assets.warrantyStartDate'), default: false },
    { key: 'warranty_end_date', label: t('assets.warrantyEndDate'), default: false },
    { key: 'start_date', label: t('assets.serviceStartDate'), default: false },
    { key: 'end_date', label: t('assets.serviceEndDate'), default: false },
    { key: 'creation', label: t('commonFields.createdOn'), default: false },
    { key: 'owner', label: t('commonFields.createdBy'), default: false },
  ];

  const [searchParams, setSearchParams] = useSearchParams();
  const setSearchParamsRef = useRef(setSearchParams);

  useEffect(() => {
    setSearchParamsRef.current = setSearchParams;
  }, [setSearchParams]);
  const currentPage = useMemo(() => {
    const p = parseInt(searchParams.get('page') || '1', 10);
    return Number.isNaN(p) || p < 1 ? 1 : p;
  }, [searchParams]);
  const setCurrentPage = useCallback((pageOrUpdater: number | ((p: number) => number)) => {
    const next = typeof pageOrUpdater === 'function' ? pageOrUpdater(currentPage) : pageOrUpdater;
    setSearchParams((prev) => {
      const nextParams = new URLSearchParams(prev);
      nextParams.set('page', String(next));
      return nextParams;
    });
  }, [currentPage, setSearchParams]);
  const [pageSize] = useState(20);
  const [initialLoadComplete, setInitialLoadComplete] = useState(false);
  const [selectedRows, setSelectedRows] = useState<Set<string>>(new Set());
  const [showExportModal, setShowExportModal] = useState(false);
  const [isExporting, setIsExporting] = useState(false);
  const [deleteConfirmOpen, setDeleteConfirmOpen] = useState<string | null>(null);
  const [canDelete, setCanDelete] = useState(true);
  const [canAddPlan, setCanAddPlan] = useState(true);

  const [dateFilterBy, setDateFilterBy] = useState<'' | 'creation' | 'modified'>(() => (searchParams.get('date_filter_by') as '' | 'creation' | 'modified') || '');
  const [dateStart, setDateStart] = useState<string>(() => searchParams.get('date_start') || '');
  const [dateEnd, setDateEnd] = useState<string>(() => searchParams.get('date_end') || '');
  const [contractWarrantyFilter, setContractWarrantyFilter] = useState<string>(() => searchParams.get('contract_warranty') || '');
  const [frequencyFilter, setFrequencyFilter] = useState<string>(() => searchParams.get('frequency') || '');
  const [warStatusFilter, setWarStatusFilter] = useState<string>(() => searchParams.get('war_status') || '');
  const [serviceContractStatusFilter, setServiceContractStatusFilter] = useState<string>(() => searchParams.get('service_contract_status') || '');
  const [vendorFilter, setVendorFilter] = useState<string>(() => searchParams.get('vendor') || '');
  const [assetFilter, setAssetFilter] = useState<string>(() => searchParams.get('asset') || '');
  const [isFilterExpanded, setIsFilterExpanded] = useState(false);
  const [activeFilterCount, setActiveFilterCount] = useState(0);
  const [savedFilters, setSavedFilters] = useState<any[]>([]);
  const [showSaveFilterModal, setShowSaveFilterModal] = useState(false);
  const [filterPresetName, setFilterPresetName] = useState('');

  useEffect(() => {
    const saved = localStorage.getItem('supportPlanFilterPresets');
    if (saved) setSavedFilters(JSON.parse(saved));
  }, []);

  const hasDateFilter = dateFilterBy && (dateStart || dateEnd);
  useEffect(() => {
    const count = [contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter].filter(Boolean).length + (hasDateFilter ? 1 : 0);
    setActiveFilterCount(count);
  }, [contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter, hasDateFilter]);

  const apiFilters = useMemo(() => {
    const filters: Record<string, any> = {};
    if (contractWarrantyFilter) filters['custom_contractwarranty'] = contractWarrantyFilter;
    if (frequencyFilter) filters['frequency'] = frequencyFilter;
    if (warStatusFilter) filters['war_status'] = warStatusFilter;
    if (serviceContractStatusFilter) filters['service_contract_status'] = serviceContractStatusFilter;
    if (vendorFilter) filters['vendor'] = vendorFilter;
    if (assetFilter) filters['asset'] = assetFilter;
    Object.assign(filters, buildDateRangeFilters(dateFilterBy, dateStart, dateEnd));
    return filters;
  }, [contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter, dateFilterBy, dateStart, dateEnd]);

  const { supportPlans, loading, error, totalCount, refetch } = useSupportPlanList({
    filters: apiFilters,
    limit_start: (currentPage - 1) * pageSize,
    limit_page_length: pageSize,
    order_by: 'creation desc',
  });

  useEffect(() => { if (!loading && !initialLoadComplete) setInitialLoadComplete(true); }, [loading, initialLoadComplete]);
  const filtersChangedOnce = useRef(false);
  useEffect(() => {
    if (!filtersChangedOnce.current) {
      filtersChangedOnce.current = true;
      return;
    }
    setSearchParamsRef.current((prev) => {
      const next = new URLSearchParams(prev);
      if (dateFilterBy) next.set('date_filter_by', dateFilterBy); else next.delete('date_filter_by');
      if (dateStart) next.set('date_start', dateStart); else next.delete('date_start');
      if (dateEnd) next.set('date_end', dateEnd); else next.delete('date_end');
      if (contractWarrantyFilter) next.set('contract_warranty', contractWarrantyFilter); else next.delete('contract_warranty');
      if (frequencyFilter) next.set('frequency', frequencyFilter); else next.delete('frequency');
      if (warStatusFilter) next.set('war_status', warStatusFilter); else next.delete('war_status');
      if (serviceContractStatusFilter) next.set('service_contract_status', serviceContractStatusFilter); else next.delete('service_contract_status');
      if (vendorFilter) next.set('vendor', vendorFilter); else next.delete('vendor');
      if (assetFilter) next.set('asset', assetFilter); else next.delete('asset');
      next.set('page', '1');
      return next;
    });
  }, [dateFilterBy, dateStart, dateEnd, contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter]);
  useEffect(() => { setSelectedRows(new Set()); }, [dateFilterBy, dateStart, dateEnd, contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter, currentPage]);

  const totalPages = Math.ceil(totalCount / pageSize);
  const formatCurrency = (value: string | number | null) => {
    if (!value) return '-';
    const num = typeof value === 'string' ? parseFloat(value) : value;
    return new Intl.NumberFormat('en-US', { style: 'currency', currency: 'SAR' }).format(num);
  };

  const clearFilters = () => {
    setDateFilterBy(''); setDateStart(''); setDateEnd('');
    setContractWarrantyFilter(''); setFrequencyFilter(''); setWarStatusFilter('');
    setServiceContractStatusFilter(''); setVendorFilter(''); setAssetFilter('');
    setSearchParamsRef.current((prev) => {
      const next = new URLSearchParams(prev);
      next.delete('date_filter_by'); next.delete('date_start'); next.delete('date_end');
      next.delete('contract_warranty'); next.delete('frequency'); next.delete('war_status');
      next.delete('service_contract_status'); next.delete('vendor'); next.delete('asset');
      next.set('page', '1');
      return next;
    });
  };
  const hasActiveFilters = hasDateFilter || !!contractWarrantyFilter || !!frequencyFilter || !!warStatusFilter || !!serviceContractStatusFilter || !!vendorFilter || !!assetFilter;

  const handleSaveFilterPreset = () => {
    if (!filterPresetName.trim()) { alert('Please enter a filter name'); return; }
    const preset = { id: Date.now(), name: filterPresetName, filters: { dateFilterBy, dateStart, dateEnd, contractWarrantyFilter, frequencyFilter, warStatusFilter, serviceContractStatusFilter, vendorFilter, assetFilter } };
    const updated = [...savedFilters, preset];
    setSavedFilters(updated);
    setFilterPresetName('');
    setShowSaveFilterModal(false);
    localStorage.setItem('supportPlanFilterPresets', JSON.stringify(updated));
  };

  const handleLoadFilterPreset = (preset: any) => {
    const f = preset.filters;
    setDateFilterBy(f.dateFilterBy || ''); setDateStart(f.dateStart || ''); setDateEnd(f.dateEnd || '');
    setContractWarrantyFilter(f.contractWarrantyFilter || ''); setFrequencyFilter(f.frequencyFilter || '');
    setWarStatusFilter(f.warStatusFilter || ''); setServiceContractStatusFilter(f.serviceContractStatusFilter || '');
    setVendorFilter(f.vendorFilter || ''); setAssetFilter(f.assetFilter || '');
  };

  const handleDeleteFilterPreset = (id: number) => {
    const updated = savedFilters.filter(f => f.id !== id);
    setSavedFilters(updated);
    localStorage.setItem('supportPlanFilterPresets', JSON.stringify(updated));
  };

  const handleSelectRow = (name: string) => setSelectedRows(prev => { const newSet = new Set(prev); newSet.has(name) ? newSet.delete(name) : newSet.add(name); return newSet; });
  const handleSelectAll = () => selectedRows.size === supportPlans.length ? setSelectedRows(new Set()) : setSelectedRows(new Set(supportPlans.map(i => i.name)));
  const isAllSelected = supportPlans.length > 0 && selectedRows.size === supportPlans.length;
  const isSomeSelected = selectedRows.size > 0 && selectedRows.size < supportPlans.length;

  const fetchAllSupportPlansForExport = useCallback(async (): Promise<any[]> => {
    const allPlans: any[] = [];
    let currentPageNum = 0;
    const pageSizeNum = 100;
    let hasMoreData = true;
    const filterArrays = toFrappeFilterArray(apiFilters);
    while (hasMoreData) {
      try {
        const response = await fetch('/api/method/frappe.client.get_list', {
          method: 'POST', headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ doctype: 'Support Plans', filters: filterArrays.length > 0 ? filterArrays : {}, fields: ['*'], limit_start: currentPageNum * pageSizeNum, limit_page_length: pageSizeNum, order_by: 'creation desc' })
        });
        const data = await response.json();
        const results = data.message || [];
        allPlans.push(...results);
        if (results.length < pageSizeNum) hasMoreData = false; else currentPageNum++;
        if (currentPageNum > 100) { console.warn('Export safety limit reached'); hasMoreData = false; }
      } catch (error) { console.error('Error fetching support plans for export:', error); throw error; }
    }
    return allPlans;
  }, [apiFilters]);

  const handleExport = async (scope: ExportScope, format: ExportFormat, columns: string[]) => {
    setIsExporting(true);
    try {
      let dataToExport: any[] = [];
      switch (scope) {
        case 'selected': dataToExport = supportPlans.filter(i => selectedRows.has(i.name)); break;
        case 'all_on_page': dataToExport = supportPlans; break;
        case 'all_with_filters': dataToExport = await fetchAllSupportPlansForExport(); break;
      }
      if (dataToExport.length === 0) { alert(t('assets.noDataToExport')); return; }
      const columnLabels = columns.map(key => EXPORT_COLUMNS.find(c => c.key === key)?.label || key);

      if (format === 'csv') {
        const csvContent = [columnLabels.join(','), ...dataToExport.map(item => columns.map(key => { let value = item[key] ?? ''; if (typeof value === 'string' && (value.includes(',') || value.includes('"') || value.includes('\n'))) value = `"${value.replace(/"/g, '""')}"`; return value; }).join(','))].join('\n');
        const blob = new Blob(['\ufeff' + csvContent], { type: 'text/csv;charset=utf-8;' });
        const url = URL.createObjectURL(blob);
        const link = document.createElement('a'); link.href = url; link.download = `support_plans_export_${new Date().toISOString().split('T')[0]}.csv`; link.click();
        URL.revokeObjectURL(url);
      } else if (format === 'excel') {
        const worksheetData = [columnLabels, ...dataToExport.map(item => columns.map(key => item[key] ?? ''))];
        const worksheet = XLSX.utils.aoa_to_sheet(worksheetData);
        const workbook = XLSX.utils.book_new();
        XLSX.utils.book_append_sheet(workbook, worksheet, 'Support Plans');
        XLSX.writeFile(workbook, `support_plans_export_${new Date().toISOString().split('T')[0]}.xlsx`);
      }
      setShowExportModal(false); setSelectedRows(new Set());
    } catch (error) { console.error('Export failed:', error); alert(`Export failed: ${error instanceof Error ? error.message : 'Unknown error'}`); }
    finally { setIsExporting(false); }
  };

  const handleDelete = async (name: string) => {
    try {
      const response = await fetch(`/api/resource/Support Plans/${encodeURIComponent(name)}`, { method: 'DELETE', headers: { 'Content-Type': 'application/json' } });
      if (!response.ok) throw new Error('Failed to delete');
      setDeleteConfirmOpen(null); refetch(); alert(t('supportPlans.deletedSuccessfully'));
    } catch (err) { alert(`Failed to delete: ${err instanceof Error ? err.message : 'Unknown error'}`); }
  };

  if (loading && !initialLoadComplete) {
    return (
      <div className="flex items-center justify-center h-screen bg-gray-50 dark:bg-gray-900">
        <div className="text-center">
          <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-indigo-500 mx-auto"></div>
          <p className="mt-4 text-gray-600 dark:text-gray-400">{t('supportPlans.loadingSupportPlans')}</p>
        </div>
      </div>
    );
  }

  if (error) {
    return (
      <div className="p-6 bg-gray-50 dark:bg-gray-900 min-h-screen">
        <div className="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-6">
          <h2 className="text-xl font-bold text-red-800 dark:text-red-300 mb-4">{t('supportPlans.errorLoadingSupportPlans')}</h2>
          <p className="text-red-700 dark:text-red-400 mb-4">{error}</p>
          <button onClick={refetch} className="bg-indigo-600 hover:bg-indigo-700 text-white px-4 py-2 rounded">Try Again</button>
        </div>
      </div>
    );
  }

  return (
    <div className="p-6 bg-gray-50 dark:bg-gray-900 min-h-screen">
      {/* Header */}
          <div className="mb-6 flex justify-between items-center">
        <div>
          <div className="flex items-center gap-3">
            <FaFileContract className="text-3xl text-indigo-600 dark:text-indigo-400" />
            <div>
              <h1 className="text-2xl font-bold text-gray-800 dark:text-white">{t('supportPlans.listTitle')}</h1>
              <p className="text-sm text-gray-500 dark:text-gray-400">
                {t('issues.listTotal')}: {totalCount}
                {selectedRows.size > 0 && <span className="ml-2 text-indigo-600 dark:text-indigo-400">• {selectedRows.size} selected</span>}
                {loading && initialLoadComplete && <span className="ml-2 inline-flex items-center gap-1 text-xs text-indigo-600 dark:text-indigo-400"><div className="animate-spin rounded-full h-3 w-3 border-b-2 border-indigo-500"></div>Updating...</span>}
              </p>
            </div>
          </div>
        </div>
        <div className="flex gap-3">
          <button onClick={() => setIsFilterExpanded(!isFilterExpanded)} className={`px-4 py-2 rounded-lg flex items-center gap-2 transition-colors ${isFilterExpanded || hasActiveFilters ? 'bg-indigo-100 text-indigo-700 dark:bg-indigo-900/30 dark:text-indigo-300' : 'bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600'}`}>
            <FaFilter />Filters{activeFilterCount > 0 && <span className="bg-indigo-600 text-white text-xs px-1.5 py-0.5 rounded-full">{activeFilterCount}</span>}
          </button>
          <button onClick={refetch} disabled={loading} className="px-4 py-2 rounded-lg bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600 flex items-center gap-2 disabled:opacity-50">
            <FaSync className={loading ? 'animate-spin' : ''} />Refresh
          </button>
          <button onClick={() => setShowExportModal(true)} className="bg-green-600 hover:bg-green-700 text-white px-4 py-2 rounded-lg flex items-center gap-2 shadow" disabled={totalCount === 0}>
            <FaFileExport /><span className="font-medium">{t('listPages.export')}</span>{selectedRows.size > 0 && <span className="bg-white/20 px-1.5 py-0.5 rounded text-xs">{selectedRows.size}</span>}
          </button>
          {canAddPlan && (
            <button onClick={() => navigate('/sla/new')} className="bg-indigo-600 hover:bg-indigo-700 text-white px-4 py-2 rounded-lg flex items-center gap-2 shadow-lg">
            <FaPlus /><span className="font-medium">{t('supportPlans.createFirstSupportPlan')}</span>
            </button>
          )}
        </div>
      </div>

      {/* Stats Cards */}
      <div className="grid grid-cols-1 md:grid-cols-4 gap-4 mb-4">
        <div className="bg-white dark:bg-gray-800 rounded-lg shadow p-4 border border-gray-200 dark:border-gray-700">
          <div className="flex items-center justify-between">
            <div><p className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.statsTotalPlans')}</p><p className="text-2xl font-bold text-gray-800 dark:text-white">{totalCount}</p></div>
            <FaFileContract className="text-3xl text-indigo-500" />
          </div>
        </div>
        <div className="bg-white dark:bg-gray-800 rounded-lg shadow p-4 border border-gray-200 dark:border-gray-700">
          <div className="flex items-center justify-between">
            <div><p className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.statsContracts')}</p><p className="text-2xl font-bold text-blue-600">{supportPlans.filter(i => i.custom_contractwarranty === 'Contract').length}</p></div>
            <div className="w-10 h-10 rounded-full bg-blue-100 dark:bg-blue-900/30 flex items-center justify-center"><FaCog className="text-blue-600" /></div>
          </div>
        </div>
        <div className="bg-white dark:bg-gray-800 rounded-lg shadow p-4 border border-gray-200 dark:border-gray-700">
          <div className="flex items-center justify-between">
            <div><p className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.statsWarranties')}</p><p className="text-2xl font-bold text-purple-600">{supportPlans.filter(i => i.custom_contractwarranty === 'Warranty').length}</p></div>
            <div className="w-10 h-10 rounded-full bg-purple-100 dark:bg-purple-900/30 flex items-center justify-center"><FaShieldAlt className="text-purple-600" /></div>
          </div>
        </div>
        <div className="bg-white dark:bg-gray-800 rounded-lg shadow p-4 border border-gray-200 dark:border-gray-700">
          <div className="flex items-center justify-between">
            <div><p className="text-sm text-gray-500 dark:text-gray-400">{t('supportPlans.statsActive')}</p><p className="text-2xl font-bold text-green-600">{supportPlans.filter(i => i.service_contract_status === 'Active' || i.war_status === 'Active').length}</p></div>
            <div className="w-10 h-10 rounded-full bg-green-100 dark:bg-green-900/30 flex items-center justify-center"><span className="text-green-600 font-bold">✓</span></div>
          </div>
        </div>
      </div>

      {/* Expandable Filter Panel */}
      {isFilterExpanded && (
        <div className="bg-white dark:bg-gray-800 rounded-lg shadow-lg border border-gray-200 dark:border-gray-700 mb-4">
          <div className="bg-gradient-to-r from-indigo-500 to-indigo-600 px-4 py-3 rounded-t-lg">
            <div className="flex items-center justify-between gap-4">
              <div className="flex items-center gap-3">
                <FaFilter className="text-white" size={16} /><h3 className="text-white font-semibold text-sm">Filters</h3>
                {activeFilterCount > 0 && <span className="bg-white text-indigo-600 px-2 py-0.5 rounded-full text-xs font-bold">{activeFilterCount}</span>}
              </div>
              <div className="flex items-center gap-2 flex-shrink-0">
                {activeFilterCount > 0 && <button onClick={() => setShowSaveFilterModal(true)} className="px-3 py-1.5 bg-white text-indigo-600 hover:bg-indigo-50 rounded-md text-xs font-medium flex items-center gap-1.5"><FaSave size={12} />Save</button>}
                {hasActiveFilters && <button onClick={clearFilters} className="px-3 py-1.5 bg-red-500 hover:bg-red-600 text-white rounded-md text-xs font-medium flex items-center gap-1.5"><FaTimes size={12} />Clear</button>}
              </div>
            </div>
          </div>
          <div className="p-4">
            {savedFilters.length > 0 && (
              <div className="mb-4 pb-4 border-b border-gray-200 dark:border-gray-700">
                <h4 className="text-xs font-semibold text-gray-700 dark:text-gray-300 mb-2 flex items-center gap-2"><FaStar className="text-yellow-500" size={12} />Saved Filters</h4>
                <div className="flex flex-wrap gap-2">
                  {savedFilters.map((preset) => (
                    <div key={preset.id} className="group relative inline-flex items-center gap-2 px-3 py-1.5 bg-gradient-to-r from-indigo-100 to-blue-100 dark:from-indigo-900/30 dark:to-blue-900/30 border border-indigo-200 dark:border-indigo-700 rounded-lg hover:shadow-md">
                      <button onClick={() => handleLoadFilterPreset(preset)} className="text-xs font-medium text-indigo-700 dark:text-indigo-300">{preset.name}</button>
                      <button onClick={() => handleDeleteFilterPreset(preset.id)} className="opacity-0 group-hover:opacity-100 text-red-500 hover:text-red-700"><FaTrash size={10} /></button>
                    </div>
                  ))}
                </div>
              </div>
            )}
            <div className="bg-gray-50 dark:bg-gray-900/50 p-3 rounded-lg">
              <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-6 gap-3">
                <div className="relative">
                  <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">{t('filters.filterBy')}</label>
                  <select value={dateFilterBy} onChange={(e) => { const v = e.target.value as '' | 'creation' | 'modified'; setDateFilterBy(v); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white">
                    <option value="">{t('filters.filterBy')}</option>
                    <option value="creation">{t('filters.createdDate')}</option>
                    <option value="modified">{t('filters.latestModifiedDate')}</option>
                  </select>
                </div>
                {dateFilterBy && (
                  <>
                    <div className="relative">
                      <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">{t('filters.startDate')}</label>
                      <input type="date" value={dateStart} onChange={(e) => { const v = e.target.value; setDateStart(v); if (dateEnd && v > dateEnd) setDateEnd(v); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white" />
                    </div>
                    <div className="relative">
                      <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">{t('filters.endDate')}</label>
                      <input type="date" value={dateEnd} onChange={(e) => { setDateEnd(e.target.value); setCurrentPage(1); }} min={dateStart || undefined} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white" />
                    </div>
                  </>
                )}
                <div className="relative">
                  <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">Contract/Warranty</label>
                  <select value={contractWarrantyFilter} onChange={(e) => { setContractWarrantyFilter(e.target.value); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white">
                    <option value="">All Types</option><option value="Contract">Contract</option><option value="Warranty">Warranty</option>
                  </select>
                </div>
                <div className="relative">
                  <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">Frequency</label>
                  <select value={frequencyFilter} onChange={(e) => { setFrequencyFilter(e.target.value); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white">
                    <option value="">All Frequencies</option><option value="Monthly">Monthly</option><option value="Quarterly">Quarterly</option><option value="Half-Yearly">Half-Yearly</option><option value="Yearly">Yearly</option>
                  </select>
                </div>
                <div className="relative">
                  <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">Warranty Status</label>
                  <select value={warStatusFilter} onChange={(e) => { setWarStatusFilter(e.target.value); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white">
                    <option value="">All Statuses</option><option value="Active">Active</option><option value="Inactive">Inactive</option><option value="Expired">Expired</option>
                  </select>
                </div>
                <div className="relative">
                  <label className="block text-[10px] font-medium text-gray-700 dark:text-gray-300 mb-0.5">Contract Status</label>
                  <select value={serviceContractStatusFilter} onChange={(e) => { setServiceContractStatusFilter(e.target.value); setCurrentPage(1); }} className="w-full px-2 py-1 text-xs border border-gray-300 dark:border-gray-600 rounded focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white">
                    <option value="">All Statuses</option><option value="Active">Active</option><option value="Inactive">Inactive</option><option value="Expired">Expired</option>
                  </select>
                </div>
                <div className="relative z-[60]">
                  <LinkField label="Vendor" doctype="Supplier" value={vendorFilter} onChange={(val) => { setVendorFilter(val); setCurrentPage(1); }} placeholder="Select Vendor" disabled={false} compact={true} />
                  {vendorFilter && <button onClick={() => setVendorFilter('')} className="absolute right-2 top-6 text-gray-400 hover:text-red-500 z-10"><FaTimes size={10} /></button>}
                </div>
                <div className="relative z-[59]">
                  <LinkField label="Asset" doctype="Asset" value={assetFilter} onChange={(val) => { setAssetFilter(val); setCurrentPage(1); }} placeholder="Select Asset" disabled={false} compact={true} />
                  {assetFilter && <button onClick={() => setAssetFilter('')} className="absolute right-2 top-6 text-gray-400 hover:text-red-500 z-10"><FaTimes size={10} /></button>}
                </div>
              </div>
            </div>
          </div>
        </div>
      )}

      {/* Save Filter Modal */}
      {showSaveFilterModal && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl max-w-md w-full p-6 animate-scale-in">
            <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">
              {t('common.saveFilterPreset')}
            </h3>
            <input
              type="text"
              value={filterPresetName}
              onChange={(e) => setFilterPresetName(e.target.value)}
              onKeyDown={(e) => { if (e.key === 'Enter') handleSaveFilterPreset(); }}
              placeholder={t('common.enterFilterName')}
              className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white dark:bg-gray-700 text-gray-900 dark:text-white mb-4"
              autoFocus
            />
            <div className="flex gap-2 justify-end">
              <button
                onClick={() => { setShowSaveFilterModal(false); setFilterPresetName(''); }}
                className="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md"
              >
                {t('common.cancel')}
              </button>
              <button
                onClick={handleSaveFilterPreset}
                className="px-4 py-2 text-sm font-medium text-white bg-indigo-600 hover:bg-indigo-700 rounded-md flex items-center gap-2"
              >
                <FaSave size={12} />
                {t('common.saveFilter')}
              </button>
            </div>
          </div>
        </div>
      )}

      {/* Export Modal */}
      <ExportModal isOpen={showExportModal} onClose={() => setShowExportModal(false)} selectedCount={selectedRows.size} totalCount={totalCount} pageCount={supportPlans.length} onExport={handleExport} isExporting={isExporting} exportColumns={EXPORT_COLUMNS} />

      {/* Table */}
      <div className="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 overflow-hidden relative">
        {loading && initialLoadComplete && (
          <div className="absolute inset-0 bg-white/60 dark:bg-gray-800/60 flex items-center justify-center z-10 backdrop-blur-[1px]">
            <div className="flex items-center gap-3 bg-white dark:bg-gray-700 px-4 py-2 rounded-lg shadow-lg">
              <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-indigo-500"></div>
              <span className="text-sm text-gray-600 dark:text-gray-300">
                {t('common.filtering')}
              </span>
            </div>
          </div>
        )}
        <div className="overflow-x-auto">
          <table className="w-full">
            <thead className="bg-gray-100 dark:bg-gray-700 border-b border-gray-200 dark:border-gray-600">
              <tr>
                <th className="px-4 py-3 text-left">
                  <button onClick={handleSelectAll} className="text-gray-500 dark:text-gray-400 hover:text-indigo-600 dark:hover:text-indigo-400" title={isAllSelected ? 'Deselect all' : 'Select all'}>
                    {isAllSelected ? <FaCheckSquare className="text-indigo-600 dark:text-indigo-400" size={18} /> : isSomeSelected ? <div className="relative"><FaSquare size={18} /><div className="absolute inset-0 flex items-center justify-center"><div className="w-2 h-0.5 bg-current"></div></div></div> : <FaSquare size={18} />}
                  </button>
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('supportPlans.table.planName', 'Plan Name')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('supportPlans.table.type', 'Type')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('supportPlans.table.frequency', 'Frequency')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('supportPlans.table.contractValue', 'Contract Value')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('commonFields.status')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('commonFields.supplier')}
                </th>
                <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
                  {t('listPages.actions')}
                </th>
              </tr>
            </thead>
            <tbody className="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
              {supportPlans.length === 0 ? (
                <tr>
                  <td colSpan={8} className="px-4 py-12 text-center text-gray-500 dark:text-gray-400">
                    <div className="flex flex-col items-center">
                      <FaFileContract className="text-4xl text-gray-300 dark:text-gray-600 mb-2" />
                      <p>{t('supportPlans.noSupportPlansFound', 'No support plans found')}</p>
                      {hasActiveFilters ? (
                        <button onClick={clearFilters} className="mt-4 text-indigo-600 dark:text-indigo-400 hover:underline">
                          {t('common.clearFilters')}
                        </button>
                      ) : canAddPlan ? (
                        <button onClick={() => navigate('/sla/new')} className="mt-4 text-indigo-600 dark:text-indigo-400 hover:underline">
                          {t('supportPlans.createFirstSupportPlan', 'Create your first support plan')}
                        </button>
                      ) : null}
                    </div>
                  </td>
                </tr>
              ) : supportPlans.map((plan) => (
                <tr key={plan.name} className={`hover:bg-gray-50 dark:hover:bg-gray-700/50 cursor-pointer transition-colors ${selectedRows.has(plan.name) ? 'bg-indigo-50 dark:bg-indigo-900/20' : ''}`} onClick={() => navigate(`/sla/${plan.name}`)}>
                  <td className="px-4 py-3" onClick={(e) => e.stopPropagation()}>
                    <button onClick={() => handleSelectRow(plan.name)} className="text-gray-500 dark:text-gray-400 hover:text-indigo-600 dark:hover:text-indigo-400">
                      {selectedRows.has(plan.name) ? <FaCheckSquare className="text-indigo-600 dark:text-indigo-400" size={18} /> : <FaSquare size={18} />}
                    </button>
                  </td>
                  <td className="px-4 py-3">
                    <div><span className="text-sm font-medium text-indigo-600 dark:text-indigo-400">{plan.support_plan || plan.name}</span>
                      {plan.asset && <p className="text-xs text-gray-500 dark:text-gray-400 mt-0.5 flex items-center gap-1"><FaWrench size={10} /> {plan.asset}</p>}
                    </div>
                  </td>
                  <td className="px-4 py-3">{plan.custom_contractwarranty ? <span className={`inline-flex px-2 py-1 text-xs font-medium rounded-full ${getContractWarrantyStyle(plan.custom_contractwarranty)}`}>{plan.custom_contractwarranty}</span> : <span className="text-gray-400">-</span>}</td>
                  <td className="px-4 py-3">{plan.frequency ? <span className={`inline-flex px-2 py-1 text-xs font-medium rounded-full ${getFrequencyStyle(plan.frequency)}`}>{plan.frequency}</span> : <span className="text-gray-400">-</span>}</td>
                  <td className="px-4 py-3"><span className="text-sm font-medium text-gray-900 dark:text-white">{formatCurrency(plan.custom_contract_value)}</span></td>
                  <td className="px-4 py-3">
                    <div className="flex flex-col gap-1">
                      {plan.custom_contractwarranty === 'Warranty' && plan.war_status && (
                        <span className={`inline-flex px-2 py-0.5 text-[10px] font-medium rounded-full ${getStatusStyle(plan.war_status)}`}>
                          {t('supportPlans.statusLabel.warrantyPrefix', 'W:')}{' '}
                          {t(`supportPlans.status.${(plan.war_status as string).toLowerCase().replace(/\\s+/g, '_')}`, plan.war_status)}
                        </span>
                      )}
                      {plan.custom_contractwarranty === 'Contract' && plan.service_contract_status && (
                        <span className={`inline-flex px-2 py-0.5 text-[10px] font-medium rounded-full ${getStatusStyle(plan.service_contract_status)}`}>
                          {t('supportPlans.statusLabel.contractPrefix', 'C:')}{' '}
                          {t(`supportPlans.status.${(plan.service_contract_status as string).toLowerCase().replace(/\\s+/g, '_')}`, plan.service_contract_status)}
                        </span>
                      )}
                      {!plan.war_status && !plan.service_contract_status && <span className="text-gray-400">-</span>}
                    </div>
                  </td>
                  <td className="px-4 py-3"><span className="text-sm text-gray-600 dark:text-gray-300 line-clamp-1">{plan.vendor || '-'}</span></td>
                  <td className="px-4 py-3">
                    <div className="flex items-center gap-1" onClick={(e) => e.stopPropagation()}>
                      <button onClick={() => navigate(`/sla/${plan.name}`)} className="text-blue-600 dark:text-blue-400 hover:text-blue-900 dark:hover:text-blue-300 p-2 hover:bg-blue-50 dark:hover:bg-blue-900/30 rounded" title={t('supportPlans.viewDetails', 'View')}><FaEye /></button>
                      <button onClick={() => navigate(`/sla/${plan.name}?edit=true`)} className="text-green-600 dark:text-green-400 hover:text-green-900 dark:hover:text-green-300 p-2 hover:bg-green-50 dark:hover:bg-green-900/30 rounded" title={t('supportPlans.editSupportPlan', 'Edit')}><FaEdit /></button>
                      {canDelete && <button onClick={() => setDeleteConfirmOpen(plan.name)} className="text-red-600 dark:text-red-400 hover:text-red-900 dark:hover:text-red-300 p-2 hover:bg-red-50 dark:hover:bg-red-900/30 rounded" title={t('common.delete')}><FaTrash /></button>}
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
        <ListPagination
          currentPage={currentPage}
          totalCount={totalCount}
          pageSize={pageSize}
          itemLabel={t('pagination.plans')}
          onPageChange={(p) => setCurrentPage(p)}
        />
      </div>

      {/* Delete Confirmation Modal */}
      {deleteConfirmOpen && (
        <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg p-6 max-w-md w-full mx-4 shadow-2xl">
            <div className="flex items-start gap-4">
              <div className="flex-shrink-0 w-12 h-12 rounded-full bg-red-100 dark:bg-red-900/30 flex items-center justify-center"><FaTrash className="text-red-600 dark:text-red-400 text-xl" /></div>
              <div className="flex-1">
                <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">{t('supportPlans.deleteSupportPlan')}</h3>
                <p className="text-sm text-gray-600 dark:text-gray-400 mb-4">{t('supportPlans.deleteConfirmMessage')}</p>
                <div className="bg-yellow-50 dark:bg-yellow-900/20 border border-yellow-200 dark:border-yellow-800 rounded-md p-3 mb-4"><p className="text-xs text-yellow-800 dark:text-yellow-300"><strong>{t('supportPlans.planId')}:</strong> {deleteConfirmOpen}</p></div>
                <div className="flex gap-3 justify-end">
                  <button onClick={() => setDeleteConfirmOpen(null)} className="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 bg-gray-100 dark:bg-gray-700 hover:bg-gray-200 dark:hover:bg-gray-600 rounded-lg">{t('common.cancel')}</button>
                  <button onClick={() => handleDelete(deleteConfirmOpen)} className="px-4 py-2 text-sm font-medium text-white bg-red-600 hover:bg-red-700 rounded-lg flex items-center gap-2"><FaTrash />{t('common.delete')}</button>
                </div>
              </div>
            </div>
          </div>
        </div>
      )}

      <style>{`
        @keyframes scale-in { from { transform: scale(0.95); opacity: 0; } to { transform: scale(1); opacity: 1; } }
        .animate-scale-in { animation: scale-in 0.2s ease-out; }
        .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
        .scrollbar-hide::-webkit-scrollbar { display: none; }
      `}</style>
    </div>
  );
};

export default SupportPlanList;