nixos-config/nixos/machines/chungus/media-youtube.nix

{ config, pkgs, lib, ... }:
with lib;
let
  configuration = {
    druck1 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RncxDFRfjkucPWRz5-8rjaH";
      target = "/media/youtube/series/Druck";
      output = "Druck S01E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck2 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RmbJojNI6lxS1Gn6UipeOdd";
      target = "/media/youtube/series/Druck";
      output = "Druck S02E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck3 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RnNv9KjVfvGCkDfIIuzSJpC";
      target = "/media/youtube/series/Druck";
      output = "Druck S03E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck4 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1Rlbfz3vlmiW4EOAVZMh5kVF";
      target = "/media/youtube/series/Druck";
      output = "Druck S04E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck5 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RkacxBEWFO4jx6rOhgmMHf4";
      target = "/media/youtube/series/Druck";
      output = "Druck S05E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck6 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1Rnj83qu3xujxw-LuI-2m4TS";
      target = "/media/youtube/series/Druck";
      output = "Druck S06E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck7 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RmN41ni6iDmBRg5Cos_bD--";
      target = "/media/youtube/series/Druck";
      output = "Druck S07E%(playlist_index)s %(title)s.%(ext)s";
    };
    druck8 = {
      url = "https://www.youtube.com/watch?list=PLUQncgYMM1RlzMSECHQDOHx2A4l4G-7yX";
      target = "/media/youtube/series/Druck";
      output = "Druck S08E%(playlist_index)s %(title)s.%(ext)s";
    };
    ordinary_things = {
      url = "https://www.youtube.com/@OrdinaryThings";
      target = "/media/youtube/series/Ordinary Things";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    internet_historian = {
      url = "https://www.youtube.com/@InternetHistorian";
      target = "/media/youtube/series/Internet Historian";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    bigboss = {
      url = "https://www.youtube.com/@bigbosstube";
      target = "/media/youtube/series/Big Boss";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    CGPGrey = {
      url = "https://www.youtube.com/@CGPGrey";
      target = "/media/youtube/series/CGP Grey";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    Joeseppi = {
      url = "https://www.youtube.com/@Joeseppi";
      target = "/media/youtube/series/Joeseppi";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    HungrigerHugo = {
      url = "https://www.youtube.com/@HungrigerHugo";
      target = "/media/youtube/series/HungrigerHugo";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    Kurzgesagt = {
      url = "https://www.youtube.com/@KurzgesagtDE";
      target = "/media/youtube/series/Kurzgesagt";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    Simplicissimus = {
      url = "https://www.youtube.com/@Simplicissimus";
      target = "/media/youtube/series/Simplicissimus";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
    Soosenbinder = {
      url = "https://www.youtube.com/@Soosenbinder";
      target = "/media/youtube/series/Soosenbinder";
      output = "%(channel)s S%(upload_date>%Y)sE%(upload_date>%m%d)s %(title)s.%(ext)s";
    };
  };

  downloadScript =
    name: { url
          , target
          , output
          , sponsorBlockCategories ? [ "default" ]
          , notOlderThan ? "" # e.g: 1week
          , breakOnExisting ? true
          }: pkgs.writers.writeDash "download-script-${name}" ''
      mkdir -p "${target}"
      yt-dlp \
          --no-abort-on-error \
          --no-mark-watched \
          --continue \
          ${optionalString (notOlderThan != "") "--dateafter now-${notOlderThan}" } \
          --playlist-reverse \
          --download-archive "${target}/.downloaded.txt" \
          --output "${target}/${output}" \
          --format "bestvideo[ext=mp4]+bestaudio[ext=m4a]" \
          --merge-output-format mp4 \
          --add-metadata \
          --write-thumbnail \
          --convert-thumbnail jpg \
          --sponsorblock-mark "default" \
          ${optionalString (sponsorBlockCategories != []) "--sponsorblock-remove ${concatStringsSep "," sponsorBlockCategories}" } \
          ${optionalString breakOnExisting "--break-on-existing" } \
          "${url}" || true
    '';

in
{

  systemd.services.youtube = {
    after = [ "network.target" ];
    path = [ pkgs.yt-dlp ];
    serviceConfig = {
      User = "media";
      Group = "media";
    };
    script = (concatStringsSep "\n"
      (mapAttrsToList downloadScript configuration)
    );
  };

  systemd.timers.youtube = {
    enable = true;
    wantedBy = [ "multi-user.target" ];
    timerConfig = {
      OnCalendar = "daily";
      Persistent = "true";
    };
  };

}