# roles/thin-client/apps/obs.nix
#
# OBS Studio for Schulungs-Recording. Pre-configured profile with
# PipeWire screen capture + Mic + System-Audio, Output to ~/Videos/OBS/.
# Q14 decisions: Use Case Schulungs-Recording, Pre-configuriertes Profil,
# Output local, no streaming.
{config, lib, pkgs, ...}: let
  inherit (lib) mkIf;
  cfg = config.az.tc;
in {
  config = mkIf cfg.enable {
    environment = {
      systemPackages = with pkgs; [
        obs-studio
        obs-studio-plugins.obs-pipewire-audio-capture
        obs-studio-plugins.wlrobs
      ];

      etc = {
        # System-wide OBS profile "AZ-Default".
        # Installed to /etc/obs/az-default/ and copied to user profile on
        # first run.
        "obs/az-default/basic.ini".text = ''
          [General]
          Name=AZ-Default

          [Output]
          Mode=Simple
          FilenameFormatting=%CCYY-%MM-%DD %hh-%mm-%ss
          DelayEnable=false
          DelaySec=20
          DelayPreserve=false
          ReplayWhileRecording=false
          ReplayBufferEnable=false

          [SimpleOutput]
          FilePath=/home/%/Videos/OBS/
          RecFormat=mp4
          VEncoder=x264
          VBitrate=6000
          AEncoder=aac
          ABitrate=192

          [Audio]
          SampleRate=48000
          ChannelSetup=stereo

          [Video]
          Base=1920x1080
          Output=1920x1080
          FPSType=0
          FPSCommon=30

          [AdvOut]
          ApplyServiceSettings=true
          RescaleRes=1920x1080
        '';

        # Pre-configured scene collection with PipeWire screen capture.
        "obs/az-default/scenes.json".text = ''
          {
            "sources": [
              {
                "name": "Bildschirm (PipeWire)",
                "id": "pipewire-screen-capture-source",
                "type": "input"
              },
              {
                "name": "Mikrofon",
                "id": "pulse_input_capture",
                "type": "input"
              },
              {
                "name": "System-Audio",
                "id": "pulse_output_capture",
                "type": "input"
              }
            ],
            "scene": "AZ-Default"
          }
        '';
      };
    };
  };
}