name: CI

on:
  push:
    branches: [main, dev, uat]
  pull_request:
    branches: [main, dev, uat]

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

permissions:
  contents: write
  packages: write
  security-events: write

env:
  REGISTRY: git.farh.net
  IMAGE_NAME: cartsnitch/auth

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    if: github.event_name == 'push'
    outputs:
      calver_tag: ${{ steps.calver.outputs.version }}
      sha_tag: sha-${{ github.sha }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate CalVer tag
        id: calver
        if: github.ref == 'refs/heads/main'
        run: |
          DATE_TAG=$(date -u +%Y.%m.%d)
          EXISTING=$(git tag -l "v${DATE_TAG}*" | sort -V | tail -1)
          if [ -z "$EXISTING" ]; then VERSION="$DATE_TAG"
          elif [ "$EXISTING" = "v${DATE_TAG}" ]; then VERSION="${DATE_TAG}.2"
          else BUILD_NUM=$(echo "$EXISTING" | sed "s/v${DATE_TAG}\.//"); VERSION="${DATE_TAG}.$((BUILD_NUM + 1))"; fi
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      - name: Log in to Gitea Container Registry
        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ env.REGISTRY }} -u "${{ github.actor }}" --password-stdin

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha,prefix=sha-,format=long
            type=raw,value=${{ steps.calver.outputs.version }},enable=${{ github.ref == 'refs/heads/main' }}
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Create git tag
        if: github.ref == 'refs/heads/main'
        run: |
          git tag "v${{ steps.calver.outputs.version }}"
          git push origin "v${{ steps.calver.outputs.version }}"