name: Reusable Build

on:
  workflow_call:
    inputs:
      image_version:
        description: 'Which image version to build'
        type: string
        required: true
      image_tag:
        description: 'Image tag to build from'
        type: string
        default: stable
      upload_artifacts:
        type: boolean
        default: false
      upload_r2:
        type: boolean
        default: true

env:
  IMAGE_REGISTRY: "ghcr.io/humocs-man"
  IMAGE_NAME: "fluffy-pancake"

jobs:
  determine-matrix:
    name: Determine Build Matrix
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - id: set-matrix
        run: |
          matrix='{"include":[
            {"platform":"amd64","flavor":"cosmic","image_version":"stable"}
          ]}'
          echo "matrix=$(echo "$matrix" | jq -c .)" >> $GITHUB_OUTPUT

  build:
    name: Build COSMIC Live ISO
    runs-on: ubuntu-24.04
    needs: determine-matrix
    strategy:
      fail-fast: false
      matrix: ${{ fromJSON(needs.determine-matrix.outputs.matrix) }}
    permissions:
      contents: read
      packages: read
      id-token: write

    steps:
      - uses: actions/checkout@v5
        with:
          submodules: recursive

      - uses: extractions/setup-just@v3

      - name: Format image ref
        id: image_ref
        run: |
          set -eoux pipefail
          image_name="${IMAGE_NAME}"
          image_ref="${IMAGE_REGISTRY}/${image_name}"
          artifact_format="${image_name}-${{ matrix.image_version }}-cosmic-$(uname -m)"
          echo "image_ref=$image_ref" >> $GITHUB_OUTPUT
          echo "artifact_format=$artifact_format" >> $GITHUB_OUTPUT
          echo "kargs=NONE" >> $GITHUB_OUTPUT

      - name: Build ISO
        id: build
        uses: ublue-os/titanoboa@main
        with:
          image-ref: ${{ steps.image_ref.outputs.image_ref }}:${{ inputs.image_tag }}
          hook-post-rootfs: ${{ github.workspace }}/iso/enable_anaconda.sh
          kargs: ${{ steps.image_ref.outputs.kargs }}
          builder-distro: fedora

      - name: Rename ISO
        id: rename
        env:
          OUTPUT_PATH: ${{ steps.build.outputs.iso-dest }}
          OUTPUT_NAME: ${{ steps.image_ref.outputs.artifact_format }}
        run: |
          mkdir -p output
          mv "$OUTPUT_PATH" "output/${OUTPUT_NAME}.iso"
          sha256sum "output/${OUTPUT_NAME}.iso" > "output/${OUTPUT_NAME}.iso-CHECKSUM"
          echo "output_directory=$(realpath output)" >> $GITHUB_OUTPUT

      - name: Upload ISO Artifact
        if: inputs.upload_artifacts
        uses: actions/upload-artifact@v5
        with:
          name: ${{ steps.image_ref.outputs.artifact_format }}
          path: ${{ steps.rename.outputs.output_directory }}