import { useEffect, useState } from 'react';

import { zodResolver } from '@hookform/resolvers/zod';
import { msg } from '@lingui/core/macro';
import { useLingui } from '@lingui/react';
import { Trans } from '@lingui/react/macro';
import type * as DialogPrimitive from '@radix-ui/react-dialog';
import { FolderIcon, HomeIcon, Loader2, Search } from 'lucide-react';
import { useForm } from 'react-hook-form';
import { useNavigate } from 'react-router';
import { z } from 'zod';

import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
import { FolderType } from '@documenso/lib/types/folder-type';
import { formatTemplatesPath } from '@documenso/lib/utils/teams';
import { trpc } from '@documenso/trpc/react';
import { Button } from '@documenso/ui/primitives/button';
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from '@documenso/ui/primitives/dialog';
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from '@documenso/ui/primitives/form/form';
import { Input } from '@documenso/ui/primitives/input';
import { useToast } from '@documenso/ui/primitives/use-toast';

import { useCurrentTeam } from '~/providers/team';

export type TemplateMoveToFolderDialogProps = {
  templateId: number;
  templateTitle: string;
  isOpen: boolean;
  onOpenChange: (open: boolean) => void;
  currentFolderId?: string | null;
} & Omit<DialogPrimitive.DialogProps, 'children'>;

const ZMoveTemplateFormSchema = z.object({
  folderId: z.string().nullable().optional(),
});

type TMoveTemplateFormSchema = z.infer<typeof ZMoveTemplateFormSchema>;

export function TemplateMoveToFolderDialog({
  templateId,
  templateTitle,
  isOpen,
  onOpenChange,
  currentFolderId,
  ...props
}: TemplateMoveToFolderDialogProps) {
  const { _ } = useLingui();
  const { toast } = useToast();

  const navigate = useNavigate();
  const team = useCurrentTeam();

  const [searchTerm, setSearchTerm] = useState('');

  const form = useForm<TMoveTemplateFormSchema>({
    resolver: zodResolver(ZMoveTemplateFormSchema),
    defaultValues: {
      folderId: currentFolderId ?? null,
    },
  });

  const { data: folders, isLoading: isFoldersLoading } = trpc.folder.findFolders.useQuery(
    {
      parentId: currentFolderId ?? null,
      type: FolderType.TEMPLATE,
    },
    {
      enabled: isOpen,
    },
  );

  const { mutateAsync: updateTemplate } = trpc.template.updateTemplate.useMutation();

  useEffect(() => {
    if (!isOpen) {
      form.reset();
      setSearchTerm('');
    } else {
      form.reset({ folderId: currentFolderId ?? null });
    }
  }, [isOpen, currentFolderId, form]);

  const onSubmit = async (data: TMoveTemplateFormSchema) => {
    try {
      await updateTemplate({
        templateId,
        data: {
          folderId: data.folderId ?? null,
        },
      });

      toast({
        title: _(msg`Template moved`),
        description: _(msg`The template has been moved successfully.`),
        variant: 'default',
      });

      onOpenChange(false);

      const templatesPath = formatTemplatesPath(team.url);

      if (data.folderId) {
        void navigate(`${templatesPath}/f/${data.folderId}`);
      } else {
        void navigate(templatesPath);
      }
    } catch (err) {
      const error = AppError.parseError(err);

      if (error.code === AppErrorCode.NOT_FOUND) {
        toast({
          title: _(msg`Error`),
          description: _(msg`The folder you are trying to move the template to does not exist.`),
          variant: 'destructive',
        });

        return;
      }

      toast({
        title: _(msg`Error`),
        description: _(msg`An error occurred while moving the template.`),
        variant: 'destructive',
      });
    }
  };

  const filteredFolders = folders?.data?.filter((folder) =>
    folder.name.toLowerCase().includes(searchTerm.toLowerCase()),
  );

  return (
    <Dialog {...props} open={isOpen} onOpenChange={onOpenChange}>
      <DialogContent>
        <DialogHeader>
          <DialogTitle>
            <Trans>Move Template to Folder</Trans>
          </DialogTitle>

          <DialogDescription>
            <Trans>Move &quot;{templateTitle}&quot; to a folder</Trans>
          </DialogDescription>
        </DialogHeader>

        <div className="relative">
          <Search className="text-muted-foreground absolute left-2 top-3 h-4 w-4" />
          <Input
            placeholder={_(msg`Search folders...`)}
            value={searchTerm}
            onChange={(e) => setSearchTerm(e.target.value)}
            className="pl-8"
          />
        </div>

        <Form {...form}>
          <form onSubmit={form.handleSubmit(onSubmit)} className="mt-4 flex flex-col gap-y-4">
            <FormField
              control={form.control}
              name="folderId"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>
                    <Trans>Folder</Trans>
                  </FormLabel>

                  <FormControl>
                    <div className="max-h-96 space-y-2 overflow-y-auto">
                      {isFoldersLoading ? (
                        <div className="flex h-10 items-center justify-center">
                          <Loader2 className="h-4 w-4 animate-spin" />
                        </div>
                      ) : (
                        <>
                          <Button
                            type="button"
                            variant={field.value === null ? 'default' : 'outline'}
                            className="w-full justify-start"
                            onClick={() => field.onChange(null)}
                            disabled={currentFolderId === null}
                          >
                            <HomeIcon className="mr-2 h-4 w-4" />
                            <Trans>Home (No Folder)</Trans>
                          </Button>

                          {filteredFolders?.map((folder) => (
                            <Button
                              key={folder.id}
                              type="button"
                              variant={field.value === folder.id ? 'default' : 'outline'}
                              className="w-full justify-start"
                              onClick={() => field.onChange(folder.id)}
                              disabled={currentFolderId === folder.id}
                            >
                              <FolderIcon className="mr-2 h-4 w-4" />
                              {folder.name}
                            </Button>
                          ))}

                          {searchTerm && filteredFolders?.length === 0 && (
                            <div className="text-muted-foreground px-2 py-2 text-center text-sm">
                              <Trans>No folders found</Trans>
                            </div>
                          )}
                        </>
                      )}
                    </div>
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />

            <DialogFooter>
              <Button type="button" variant="secondary" onClick={() => onOpenChange(false)}>
                <Trans>Cancel</Trans>
              </Button>

              <Button type="submit" disabled={isFoldersLoading || form.formState.isSubmitting}>
                <Trans>Move</Trans>
              </Button>
            </DialogFooter>
          </form>
        </Form>
      </DialogContent>
    </Dialog>
  );
}