'use client';

import { useState } from 'react';
import { GenericCrudTable } from '@/components/admin/reference/generic-crud-table';
import { ColumnDef } from '@tanstack/react-table';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { Loader2 } from 'lucide-react';
import { useProjects } from '@/hooks/use-master-data';
import { drawingMasterDataService } from '@/lib/services/drawing-master-data.service';
import { Badge } from '@/components/ui/badge';

interface Volume {
  id: number;
  volumeCode: string;
  volumeName: string;
  description?: string;
  sortOrder: number;
}

export default function ContractVolumesPage() {
  const [selectedProjectId, setSelectedProjectId] = useState<string | undefined>(undefined);
  const { data: projects = [], isLoading: isLoadingProjects } = useProjects();

  const columns: ColumnDef<Volume>[] = [
    {
      accessorKey: 'volumeCode',
      header: 'Code',
      cell: ({ row }) => (
        <Badge variant="outline" className="font-mono">
          {row.getValue('volumeCode')}
        </Badge>
      ),
    },
    {
      accessorKey: 'volumeName',
      header: 'Volume Name',
    },
    {
      accessorKey: 'description',
      header: 'Description',
      cell: ({ row }) => <span className="text-muted-foreground text-sm">{row.getValue('description') || '-'}</span>,
    },
    {
      accessorKey: 'sortOrder',
      header: 'Order',
      cell: ({ row }) => <span className="font-mono">{row.getValue('sortOrder')}</span>,
    },
  ];

  const projectFilter = (
    <div className="flex items-center gap-4">
      <span className="text-sm font-medium">Project:</span>
      <Select value={selectedProjectId ?? ''} onValueChange={(v) => setSelectedProjectId(v || undefined)}>
        <SelectTrigger className="w-[300px]">
          {isLoadingProjects ? (
            <Loader2 className="h-4 w-4 animate-spin" />
          ) : (
            <SelectValue placeholder="Select Project" />
          )}
        </SelectTrigger>
        <SelectContent>
          {(projects as { id?: number; publicId?: string; projectCode: string; projectName: string }[]).map((project) => (
            <SelectItem key={project.publicId || project.id} value={String(project.publicId || project.id)}>
              {project.projectCode} - {project.projectName}
            </SelectItem>
          ))}
        </SelectContent>
      </Select>
    </div>
  );

  if (!selectedProjectId) {
    return (
      <div className="p-6 space-y-6">
        <div>
          <h1 className="text-2xl font-bold">Contract Drawing Volumes</h1>
          <p className="text-muted-foreground mt-1">Manage drawing volumes (เล่ม) for contract drawings</p>
        </div>
        {projectFilter}
        <div className="text-center py-12 text-muted-foreground border rounded-lg border-dashed">
          Please select a project to manage volumes.
        </div>
      </div>
    );
  }

  return (
    <div className="p-6">
      <GenericCrudTable
        entityName="Volume"
        title="Contract Drawing Volumes"
        description="Manage drawing volumes (เล่ม) for contract drawings"
        queryKey={['contract-drawing-volumes', String(selectedProjectId)]}
        fetchFn={() => drawingMasterDataService.getContractVolumes(selectedProjectId)}
        createFn={(data: Record<string, unknown>) =>
          drawingMasterDataService.createContractVolume({
            ...(data as unknown as Parameters<typeof drawingMasterDataService.createContractVolume>[0]),
            projectId: selectedProjectId,
          })
        }
        updateFn={(id, data) => drawingMasterDataService.updateContractVolume(id, data)}
        deleteFn={(id) => drawingMasterDataService.deleteContractVolume(id)}
        columns={columns}
        fields={[
          { name: 'volumeCode', label: 'Volume Code', type: 'text', required: true },
          { name: 'volumeName', label: 'Volume Name', type: 'text', required: true },
          { name: 'description', label: 'Description', type: 'textarea' },
          { name: 'sortOrder', label: 'Sort Order', type: 'text', required: true },
        ]}
        filters={projectFilter}
      />
    </div>
  );
}