streamyfin_mirror/utils/jellyfin/media/getStreamUrl.ts

import generateDeviceProfile from "@/utils/profiles/native";
import type { Api } from "@jellyfin/sdk";
import type {
  BaseItemDto,
  MediaSourceInfo,
  PlaybackInfoResponse,
} from "@jellyfin/sdk/lib/generated-client/models";
import { getMediaInfoApi } from "@jellyfin/sdk/lib/utils/api";
import { Alert } from "react-native";

export const getStreamUrl = async ({
  api,
  item,
  userId,
  startTimeTicks = 0,
  maxStreamingBitrate,
  sessionData,
  deviceProfile = generateDeviceProfile(),
  audioStreamIndex = 0,
  subtitleStreamIndex = undefined,
  mediaSourceId,
}: {
  api: Api | null | undefined;
  item: BaseItemDto | null | undefined;
  userId: string | null | undefined;
  startTimeTicks: number;
  maxStreamingBitrate?: number;
  sessionData?: PlaybackInfoResponse | null;
  deviceProfile?: any;
  audioStreamIndex?: number;
  subtitleStreamIndex?: number;
  height?: number;
  mediaSourceId?: string | null;
}): Promise<{
  url: string | null;
  sessionId: string | null;
  mediaSource: MediaSourceInfo | undefined;
} | null> => {
  if (!api || !userId || !item?.Id) {
    console.warn("Missing required parameters for getStreamUrl");
    return null;
  }

  let mediaSource: MediaSourceInfo | undefined;
  let sessionId: string | null | undefined;

  if (item.Type === "Program") {
    console.log("Item is of type program...");
    const res0 = await getMediaInfoApi(api).getPlaybackInfo(
      {
        userId,
        itemId: item.ChannelId!,
      },
      {
        method: "POST",
        params: {
          startTimeTicks: 0,
          isPlayback: true,
          autoOpenLiveStream: true,
          maxStreamingBitrate,
          audioStreamIndex,
        },
        data: {
          deviceProfile,
        },
      },
    );
    const transcodeUrl = res0.data.MediaSources?.[0].TranscodingUrl;
    sessionId = res0.data.PlaySessionId || null;

    if (transcodeUrl) {
      return {
        url: `${api.basePath}${transcodeUrl}`,
        sessionId,
        mediaSource: res0.data.MediaSources?.[0],
      };
    }
  }

  const itemId = item.Id;

  const res2 = await getMediaInfoApi(api).getPlaybackInfo(
    {
      itemId: item.Id!,
    },
    {
      method: "POST",
      data: {
        deviceProfile,
        userId,
        maxStreamingBitrate,
        startTimeTicks,
        autoOpenLiveStream: true,
        mediaSourceId,
        audioStreamIndex,
        subtitleStreamIndex,
      },
    },
  );

  if (res2.status !== 200) {
    console.error("Error getting playback info:", res2.status, res2.statusText);
  }

  sessionId = res2.data.PlaySessionId || null;

  mediaSource = res2.data.MediaSources?.find(
    (source: MediaSourceInfo) => source.Id === mediaSourceId,
  );

  if (item.MediaType === "Video") {
    if (mediaSource?.TranscodingUrl) {
      const urlObj = new URL(api.basePath + mediaSource?.TranscodingUrl); // Create a URL object

      // Get the updated URL
      const transcodeUrl = urlObj.toString();

      console.log("Video has transcoding URL:", `${transcodeUrl}`);
      return {
        url: transcodeUrl,
        sessionId: sessionId,
        mediaSource,
      };
    }
    const searchParams = new URLSearchParams({
      playSessionId: sessionData?.PlaySessionId || "",
      mediaSourceId: mediaSource?.Id || "",
      static: "true",
      subtitleStreamIndex: subtitleStreamIndex?.toString() || "",
      audioStreamIndex: audioStreamIndex?.toString() || "",
      deviceId: api.deviceInfo.id,
      api_key: api.accessToken,
      startTimeTicks: startTimeTicks.toString(),
      maxStreamingBitrate: maxStreamingBitrate?.toString() || "",
      userId: userId || "",
    });

    const directPlayUrl = `${
      api.basePath
    }/Videos/${itemId}/stream.mp4?${searchParams.toString()}`;

    console.log("Video is being direct played:", directPlayUrl);

    return {
      url: directPlayUrl,
      sessionId: sessionId,
      mediaSource,
    };
  }

  Alert.alert("Error", "Could not play this item");

  return null;
};