# All files / src/components/admin BulkImportTVChannelsDialog.tsx

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     'use client';

    import { useRef, useState, type ChangeEvent } from 'react';
    import { useMutation } from '@tanstack/react-query';
    import { z } from 'zod';
    import { Button } from '@/components/ui/button';
    import { Input } from '@/components/ui/input';
    import { Label } from '@/components/ui/label';
    import { Textarea } from '@/components/ui/textarea';
    import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from '@/components/ui/dialog';
    import { Alert, AlertDescription } from '@/components/ui/alert';
    import { AlertCircle, Upload } from 'lucide-react';
    import { contentService } from '@/services';
    import { useTranslation } from 'react-i18next';
    import useLoadNamespace from '@/hooks/useLoadNamespace';
    import { extractErrorMessage } from '@/lib/error-message';

    type FormData = {
      text: string;
      provider?: string;
      description?: string;
      format?: 'DRM' | 'M3U8';
      country?: string;
      start_channel_number?: number;
    };

    interface Props {
      open: boolean;
      onOpenChange: (open: boolean) => void;
      onSuccess: () => void;
    }

    export default function BulkImportTVChannelsDialog({ open, onOpenChange, onSuccess }: Props) {
      useLoadNamespace('admin/bulkImportTVChannels');
      const { t } = useTranslation(['admin/bulkImportTVChannels', 'admin', 'translation']);
      const [form, setForm] = useState<FormData>({ text: '', provider: '', description: '', format: 'DRM', country: '', start_channel_number: undefined });
      const [error, setError] = useState<string | null>(null);
      const fileInputRef = useRef<HTMLInputElement | null>(null);
      // Store result if you need to show a summary in the future

      const schema = z.object({
        text: z.string().min(1, t('bulkImportTVChannels.validation.pasteM3uContent')),
        provider: z.string().optional(),
        description: z.string().optional(),
        format: z.enum(['DRM', 'M3U8']).optional(),
        country: z.string().optional(),
        start_channel_number: z
          .string()
          .optional()
          .transform((v) => (v && v.trim() !== '' ? Number(v) : undefined))
          .refine((v) => v === undefined || (Number.isInteger(v) && v > 0), t('bulkImportTVChannels.validation.mustBePositiveNumber'))
      });

      const mutation = useMutation({
        mutationFn: async () => {
          setError(null);
          const parsed = schema.safeParse(form);
          if (!parsed.success) {
            const first = (parsed.error as z.ZodError<FormData>)?.issues?.[0]?.message;
            throw new Error(first || t('bulkImportTVChannels.validation.invalidData'));
          }
          const payload = {
            text: parsed.data.text,
            provider: parsed.data.provider || undefined,
            description: parsed.data.description || undefined,
            format: parsed.data.format || undefined,
            country: parsed.data.country || undefined,
            start_channel_number: parsed.data.start_channel_number};
          const res = await contentService.bulkImportTVChannels(payload);
          if (!res.success) {
            throw new Error(extractErrorMessage(res.error, t('bulkImportTVChannels.validation.bulkImportFailed')));
          }
          return res.data || [];
        },
        onSuccess: () => {
          onSuccess();
          onOpenChange(false);
          setForm({ text: '', provider: form.provider, description: '', format: form.format, country: form.country, start_channel_number: undefined });
        },
        onError: (e: unknown) => {
          const msg = e instanceof Error ? e.message : t('bulkImportTVChannels.validation.unknownError');
          setError(msg);
        }});

      const handleChooseFile = () => {
        fileInputRef.current?.click();
      };

      const handleFileChange = async (e: ChangeEvent<HTMLInputElement>) => {
        const file = e.target.files?.[0];
        if (!file) return;

        try {
          const fileText = await file.text();
          setError(null);
          setForm((f) => ({ ...f, text: fileText }));
        } catch {
          setError(t('bulkImportTVChannels.validation.fileReadFailed'));
        } finally {
          e.target.value = '';
        }
      };

      return (
        <Dialog open={open} onOpenChange={onOpenChange}>
          <DialogContent className="max-w-2xl max-h-[85vh] overflow-y-auto">
            <DialogHeader>
              <DialogTitle>{t('bulkImportTVChannels.title')}</DialogTitle>
              <DialogDescription>{t('bulkImportTVChannels.description')}</DialogDescription>
            </DialogHeader>

            {error && (
              <Alert variant="destructive" className="mb-2">
                <AlertCircle className="h-4 w-4" />
                <AlertDescription>{error}</AlertDescription>
              </Alert>
            )}

            <div className="grid gap-4 py-2">
              <div className="grid gap-2">
                <Label>{t('bulkImportTVChannels.labels.format')}</Label>
                <div className="flex gap-3">
                  <label className="flex items-center gap-2 text-sm">
                    <input
                      type="radio"
                      name="format"
                      checked={form.format === 'DRM'}
                      onChange={() => setForm((f) => ({ ...f, format: 'DRM' }))}
                    />
                    DRM
                  </label>
                  <label className="flex items-center gap-2 text-sm">
                    <input
                      type="radio"
                      name="format"
                      checked={form.format === 'M3U8'}
                      onChange={() => setForm((f) => ({ ...f, format: 'M3U8' }))}
                    />
                    M3U8
                  </label>
                </div>
              </div>

              <div className="grid gap-2">
                <Label>{t('bulkImportTVChannels.labels.provider')}</Label>
                <Input value={form.provider || ''} onChange={(e) => setForm((f) => ({ ...f, provider: e.target.value }))} placeholder={t('bulkImportTVChannels.placeholders.provider')} />
              </div>

                <div className="grid gap-2">
                  <Label>{t('bulkImportTVChannels.labels.globalDescription')}</Label>
                  <Input value={form.description || ''} onChange={(e) => setForm((f) => ({ ...f, description: e.target.value }))} placeholder={t('bulkImportTVChannels.placeholders.description')} />
                </div>

              <div className="grid gap-2">
                <Label>{t('bulkImportTVChannels.labels.country')}</Label>
                <Input value={form.country || ''} onChange={(e) => setForm((f) => ({ ...f, country: e.target.value }))} placeholder={t('bulkImportTVChannels.placeholders.country')} />
              </div>

              <div className="grid gap-2">
                <Label>{t('bulkImportTVChannels.labels.startChannelNumber')}</Label>
                <Input
                  type="number"
                  min={1}
                  value={form.start_channel_number ? String(form.start_channel_number) : ''}
                  onChange={(e) => setForm((f) => ({ ...f, start_channel_number: e.target.value ? Number(e.target.value) : undefined }))}
                  placeholder={t('bulkImportTVChannels.placeholders.startChannelNumber')}
                />
              </div>

              <div className="grid gap-2">
                <div className="flex items-center justify-between gap-3">
                  <Label>{t('bulkImportTVChannels.labels.m3uList')}</Label>
                  <div className="flex items-center gap-2">
                    <input
                      ref={fileInputRef}
                      type="file"
                      accept=".m3u,.m3u8,text/plain"
                      className="hidden"
                      onChange={handleFileChange}
                    />
                    <Button type="button" size="sm" variant="outline" onClick={handleChooseFile}>
                      {t('bulkImportTVChannels.buttons.chooseFile')}
                    </Button>
                  </div>
                </div>
                <Textarea
                  rows={12}
                  value={form.text}
                  onChange={(e) => setForm((f) => ({ ...f, text: e.target.value }))}
                  className="h-64 max-h-[60vh] overflow-y-auto resize-y"
                  placeholder={`#EXTM3U\n\n#EXTINF:-1 tvg-name="STARZ COMEDY" tvg-logo="https://...",STARZ COMEDY\n#KODIPROP:inputstream.adaptive.license_type=clearkey\n#KODIPROP:inputstream.adaptive.license_key=KID:KEY o {"kid":"key"}\nhttps://.../cenc.mpd`}
                />
              </div>
            </div>

            <DialogFooter>
              <Button variant="outline" onClick={() => onOpenChange(false)} disabled={mutation.isPending}>{t('bulkImportTVChannels.buttons.cancel')}</Button>
              <Button onClick={() => mutation.mutate()} disabled={mutation.isPending}>
                <Upload className="h-4 w-4 mr-2" />
                {t('bulkImportTVChannels.buttons.import')}
              </Button>
            </DialogFooter>
          </DialogContent>
        </Dialog>
      );
    }