name: Build base image

on:
  push:
    branches:
      - main
    paths:
      - 'Dockerfile.base'
      - '.forgejo/workflows/build-base.yaml'
  schedule:
    - cron: '0 6 * * 0'
  workflow_dispatch:

env:
  REGISTRY: git.mcintire.me
  IMAGE_NAME: graham/prop-base

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-and-push:
    name: Build and push base image
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout code
        uses: https://github.com/actions/checkout@v4

      - name: Generate image tag
        id: tag
        run: |
          WGRIB2=$(grep -E '^ARG WGRIB2_VERSION=' Dockerfile.base | head -1 | cut -d= -f2)
          G2C=$(grep -E '^ARG G2C_VERSION=' Dockerfile.base | head -1 | cut -d= -f2)
          TIMESTAMP=$(date +%s)
          TAG="wgrib2-${WGRIB2}-g2c-${G2C}-${TIMESTAMP}"
          echo "tag=${TAG}" >> $GITHUB_OUTPUT

      - name: Build and push base image via Kaniko
        uses: graham/infra/.forgejo/actions/kaniko-build@main
        with:
          dockerfile: Dockerfile.base
          token: ${{ secrets.FORGEJO_TOKEN }}
          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tag: ${{ steps.tag.outputs.tag }}
          extra_args: "--build-arg CACHE_BUST=$(date -u +%G-W%V)"

      - name: Tag as latest
        uses: graham/infra/.forgejo/actions/kaniko-build@main
        with:
          dockerfile: Dockerfile.base
          token: ${{ secrets.FORGEJO_TOKEN }}
          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tag: latest
          extra_args: ""