on:
  workflow_dispatch:
  push:
    branches:
      - main

env:
  NIX_CONFIG: |
    extra-substituters = https://attic.radiantwavetech.com/radiantwave
    extra-trusted-public-keys = radiantwave:QADrjpBWJssTZ3KmiZtcWEf4uAm66oOlHmtQI3jkrgA=

jobs:
  build-kiosk:
    runs-on: build-server

    steps:
      - name: Checkout
        run: git clone --depth 1 ssh://git@gitea.radiantwavetech.com:2222/RadiantWaveTech/KioskConfig.git .

      - name: Guard main branch is on the production channel
        run: |
          . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
          NAME=$(nix eval --impure --raw .#channelName)
          if [ "$NAME" != "radiantwave" ]; then
            echo "ERROR: main branch resolves to the '$NAME' channel, expected 'radiantwave'."
            echo "       A dev->main merge brought a dev-pointing channel block into flake.nix."
            echo "       Set channel.appInput/atticRepo/gitRef back to main values before building prod ISOs."
            exit 1
          fi

      - name: Prepare output directory
        run: mkdir -p /home/user/radiantwave

      - name: Build kiosk ISO
        run: |
          export NIXPKGS_ALLOW_UNFREE=1
          . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
          nix build -L --impure .#nixosConfigurations.kiosk-iso.config.system.build.isoImage

      - name: Rename kiosk ISO
        run: |
          ISO_DATE=$(date +%Y-%m-%d_%H-%M-%S)
          FILENAME="radiantwave-home-${ISO_DATE}.iso"
          cp -L result/iso/*.iso "/home/user/radiantwave/${FILENAME}"
          echo "KIOSK_ISO_FILENAME=${FILENAME}" >> "$GITHUB_ENV"

      - name: Copy kiosk ISO to fileserver
        run: |
          scp "/home/user/radiantwave/${KIOSK_ISO_FILENAME}" \
            radiantwave-infra:/mnt/infrastructure_data/files/images/

      - name: Cleanup kiosk ISO
        run: rm -f "/home/user/radiantwave/${KIOSK_ISO_FILENAME}"