name: Set variables for a Docker build (used by another workflow).

on:
  workflow_call:
    outputs:
      docker_platforms:
        description: "The docker platforms to build for."
        value: ${{ jobs.docker-vars.outputs.docker_platforms }}
      nqptp_branch:
        description: "The NQPTP branch."
        value: ${{ jobs.docker-vars.outputs.nqptp_branch }}
      push_docker_image:
        description: "Whether to push the docker image."
        value: ${{ jobs.docker-vars.outputs.push_docker_image }}

jobs:
  docker-vars:
    name: Set variables required for docker build.
    runs-on: ubuntu-22.04
    env:
      NQPTP_BRANCH: main
      PUSH_DOCKER_IMAGE: "false"
    outputs:
      nqptp_branch: ${{ env.NQPTP_BRANCH }}
      push_docker_image: ${{ env.PUSH_DOCKER_IMAGE }}
      docker_platforms: linux/386,linux/amd64,linux/arm/v7,linux/arm64
    steps:
      - name: Push docker image if this is a tag.
        if: github.ref_type == 'tag'
        run: |
          echo "PUSH_DOCKER_IMAGE=true" >> "$GITHUB_ENV"

      - name: Push docker image if this is the "master" or "development" branch.
        if: |
          github.ref_type == 'branch' &&
          (
            github.ref_name == 'master' ||
            github.ref_name == 'development'
          )
        run: |
          echo "PUSH_DOCKER_IMAGE=true" >> "$GITHUB_ENV"

      - name: If 'development' branch, set NQPTP_BRANCH to 'development'.
        if: |
          github.ref_type == 'branch' &&
          github.ref_name == 'development'
        run: |
          echo "NQPTP_BRANCH=development" >> "$GITHUB_ENV"