name: Docker Build

on:
  push:
    branches:
      - "**"
    tags:
      - "v*"
    paths:
      - ".github/workflows/**"
  workflow_dispatch:

env:
  REGISTRY: docker.pchuan.top
  IMAGE_NAME: pyxray
  APT_MIRROR: https://mirrors.ustc.edu.cn/debian
  UV_INDEX_URL: https://pypi.mirrors.ustc.edu.cn/simple/

jobs:
  docker-build:
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Read project version
        id: version
        shell: bash
        run: |
          version="$(awk -F '"' '/^version = / { print $2; exit }' pyproject.toml)"

          if [ -z "$version" ]; then
            echo "Failed to read project.version from pyproject.toml."
            exit 1
          fi

          echo "version=${version}" >> "$GITHUB_OUTPUT"
          echo "image=${REGISTRY}/${IMAGE_NAME}" >> "$GITHUB_OUTPUT"

      - name: Validate git tag version
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
        env:
          PROJECT_VERSION: ${{ steps.version.outputs.version }}
        run: |
          tag="${GITHUB_REF_NAME}"
          expected="v${PROJECT_VERSION}"

          if [ "$tag" != "$expected" ]; then
            echo "Git tag '${tag}' does not match pyproject.toml version '${PROJECT_VERSION}'. Expected '${expected}'."
            exit 1
          fi

      - name: Build Docker image
        shell: bash
        env:
          IMAGE: ${{ steps.version.outputs.image }}
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          docker build \
            --build-arg "APT_MIRROR=${APT_MIRROR}" \
            --build-arg "UV_INDEX_URL=${UV_INDEX_URL}" \
            -t "${IMAGE}:latest" \
            -t "${IMAGE}:${VERSION}" \
            .

      - name: Login Docker registry
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login "${REGISTRY}" \
            -u "${{ secrets.REGISTRY_USERNAME }}" \
            --password-stdin

      - name: Push Docker image
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
        env:
          IMAGE: ${{ steps.version.outputs.image }}
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          docker push "${IMAGE}:latest"
          docker push "${IMAGE}:${VERSION}"