name: CI

on:
  push:
    branches:
      - develop
    paths:
      - "bff/**"
      - "services/**"
      - "rpc/**"
      - "pkg/**"
      - ".gitea/workflows/ci.yml"
  workflow_dispatch:

jobs:
  changes:
    runs-on: runner
    outputs:
      build_list: ${{ steps.filter.outputs.build_list }}
    steps:
      - name: Checkout
        uses: https://git.ailuowan.com/deploy/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect changes
        id: filter
        run: |
          SERVICES="bff product admin user ad chore express sale wecom"

          pattern_for() {
            case "$1" in
              bff) echo '^(bff|pkg|rpc)/|^\.gitea/workflows/ci\.yml$' ;;
              *)   echo "^(services/$1|rpc/$1|pkg)/|^\\.gitea/workflows/ci\\.yml$" ;;
            esac
          }

          build_all=false
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            build_all=true
          else
            before="${{ github.event.before }}"
            if [ -z "$before" ] || [ "$before" = "0000000000000000000000000000000000000000" ]; then
              changed=$(git ls-files)
            else
              changed=$(git diff --name-only "$before" "${{ github.sha }}")
            fi
            echo "changed files:"
            echo "$changed"
          fi

          build_list=""
          for svc in $SERVICES; do
            should_build=false
            if [ "$build_all" = true ]; then
              should_build=true
            elif echo "$changed" | grep -qE "$(pattern_for "$svc")"; then
              should_build=true
            fi

            if [ "$should_build" = true ]; then
              if [ -n "$build_list" ]; then
                build_list="$build_list,$svc"
              else
                build_list="$svc"
              fi
              echo "$svc=yes"
            else
              echo "$svc=no"
            fi
          done

          echo "build_list=$build_list" >> "$GITHUB_OUTPUT"
          echo "build_list=$build_list"

  docker:
    needs: changes
    runs-on: runner
    name: ${{ matrix.name }}
    strategy:
      fail-fast: false
      matrix:
        name:
          - bff
          - product
          - admin
          - user
          - ad
          - chore
          - express
          - sale
          - wecom
    env:
      BUILD_LIST: ${{ needs.changes.outputs.build_list }}
      NAME: lone/${{ matrix.name }}
    steps:
      - name: Check changes
        id: check
        run: |
          if echo ",$BUILD_LIST," | grep -q ",${{ matrix.name }},"; then
            echo "build=yes" >> "$GITHUB_OUTPUT"
          else
            echo "build=no" >> "$GITHUB_OUTPUT"
            echo "skip ${{ matrix.name }} (no changes)"
          fi

      - name: Checkout
        if: steps.check.outputs.build == 'yes'
        uses: https://git.ailuowan.com/deploy/checkout@v4

      - name: Login Registry
        if: steps.check.outputs.build == 'yes'
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login ${{ vars.REGISTRY }} -u "${{ vars.REGISTRY_USERNAME }}" --password-stdin

      - name: Docker build
        if: steps.check.outputs.build == 'yes'
        run: |
          case "${{ matrix.name }}" in
            bff) dockerfile="bff/Dockerfile" ;;
            *)   dockerfile="services/${{ matrix.name }}/Dockerfile" ;;
          esac
          docker buildx use default
          docker buildx build --builder default --load -f "$dockerfile" -t "${{ vars.REGISTRY }}/$NAME:latest" .

      - name: Docker push
        if: steps.check.outputs.build == 'yes'
        run: |
          docker push ${{ vars.REGISTRY }}/$NAME:latest