'use client';

import { useState } from 'react';
import { Bookmark, Check, Plus, Trash2 } from 'lucide-react';

import { Button } from '@/components/ui/button';
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from '@/components/ui/dropdown-menu';
import {
  Dialog,
  DialogContent,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from '@/components/ui/dialog';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { useSavedViews } from '@/hooks/use-saved-views';

interface SavedViewsDropdownProps {
  entityType: string;
  currentFilters: Record<string, unknown>;
  currentSort?: { field: string; direction: 'asc' | 'desc' };
  onApplyView: (filters: Record<string, unknown>, sort?: { field: string; direction: string }) => void;
}

export function SavedViewsDropdown({
  entityType,
  currentFilters,
  currentSort,
  onApplyView,
}: SavedViewsDropdownProps) {
  const { views, activeViewId, saveCurrentView, deleteView, applyView } =
    useSavedViews(entityType);
  const [saveOpen, setSaveOpen] = useState(false);
  const [viewName, setViewName] = useState('');
  const [isSaving, setIsSaving] = useState(false);

  async function handleSave() {
    if (!viewName.trim()) return;
    setIsSaving(true);
    try {
      await saveCurrentView(viewName.trim(), currentFilters, currentSort);
      setSaveOpen(false);
      setViewName('');
    } finally {
      setIsSaving(false);
    }
  }

  return (
    <>
      <DropdownMenu>
        <DropdownMenuTrigger asChild>
          <Button variant="outline" size="sm" className="h-8">
            <Bookmark className="mr-1.5 h-3.5 w-3.5" />
            Views
          </Button>
        </DropdownMenuTrigger>
        <DropdownMenuContent align="end" className="w-56">
          {views.length === 0 ? (
            <div className="px-2 py-3 text-sm text-muted-foreground text-center">
              No saved views yet
            </div>
          ) : (
            views.map((view) => (
              <DropdownMenuItem
                key={view.id}
                className="flex items-center justify-between"
                onClick={() => {
                  applyView(view.id);
                  onApplyView(
                    view.filters as Record<string, unknown>,
                    view.sortConfig as { field: string; direction: string } | undefined,
                  );
                }}
              >
                <span className="truncate">{view.name}</span>
                <div className="flex items-center gap-1">
                  {activeViewId === view.id && (
                    <Check className="h-3.5 w-3.5 text-primary" />
                  )}
                  <button
                    className="p-0.5 rounded hover:bg-muted"
                    onClick={(e) => {
                      e.stopPropagation();
                      deleteView(view.id);
                    }}
                  >
                    <Trash2 className="h-3 w-3 text-muted-foreground" />
                  </button>
                </div>
              </DropdownMenuItem>
            ))
          )}
          <DropdownMenuSeparator />
          <DropdownMenuItem onClick={() => setSaveOpen(true)}>
            <Plus className="mr-2 h-3.5 w-3.5" />
            Save current view
          </DropdownMenuItem>
        </DropdownMenuContent>
      </DropdownMenu>

      <Dialog open={saveOpen} onOpenChange={setSaveOpen}>
        <DialogContent className="sm:max-w-sm">
          <DialogHeader>
            <DialogTitle>Save View</DialogTitle>
          </DialogHeader>
          <div className="space-y-2">
            <Label>View name</Label>
            <Input
              value={viewName}
              onChange={(e) => setViewName(e.target.value)}
              placeholder="My custom view"
              onKeyDown={(e) => e.key === 'Enter' && handleSave()}
            />
          </div>
          <DialogFooter>
            <Button variant="outline" onClick={() => setSaveOpen(false)}>
              Cancel
            </Button>
            <Button onClick={handleSave} disabled={!viewName.trim() || isSaving}>
              Save
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </>
  );
}