name: Build and Push to ACR

on:
  push:
    branches: [ "main" ]
  workflow_dispatch: {}

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

env:
  AZURE_FEDERATED_TOKEN_FILE: /var/run/secrets/azure/tokens/azure-identity-token

jobs:
  guard:
    name: Platform guard
    runs-on: ubuntu-latest
    outputs:
      ready: 
    steps:
      - uses: actions/checkout@v4
      - name: Check platform initialized
        id: check
        run: |
          if [ -f ".platform/initialized.md" ]; then
            echo "ready=true" >> $GITHUB_OUTPUT
            echo "Proceeding: platform initialized"
          else
            echo "ready=false" >> $GITHUB_OUTPUT
            echo "Skipping: .platform/initialized.md not on main yet - merge the dev->main PR first"
          fi

  build:
    name: Build and Push
    needs: guard
    if: needs.guard.outputs.ready == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write

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

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.22'
          cache: true

      - name: Tidy modules
        run: go mod tidy

      - name: Test
        run: go test ./...

      - name: Install Azure CLI
        run: |
          command -v az &>/dev/null || curl -sL https://aka.ms/InstallAzureCLIDeb | bash

      - name: Install Docker CLI
        run: |
          command -v docker &>/dev/null || (apt-get update -qq && apt-get install -y docker.io)
          docker --version

      - name: Azure login (OIDC)
        run: |
          az login \
            --service-principal \
            --username "$AZURE_CLIENT_ID" \
            --tenant "$AZURE_TENANT_ID" \
            --federated-token "$(cat $AZURE_FEDERATED_TOKEN_FILE)"
          echo "✓ Azure login successful"

      - name: Get ACR details
        id: acr
        run: |
          ACR_NAME=$(az acr list --query "[0].name" -o tsv)
          ACR_NAME="${ACR_NAME:-bstagecjotdevacr}"
          echo "ACR_NAME=$ACR_NAME" >> $GITHUB_ENV
          echo "ACR_LOGIN_SERVER=${ACR_NAME}.azurecr.io" >> $GITHUB_ENV
          echo "✓ Using ACR: ${ACR_NAME}.azurecr.io"

      - name: ACR Login
        run: |
          ACR_TOKEN=$(az acr login --name "$ACR_NAME" --expose-token --output tsv --query accessToken)
          docker login "$ACR_LOGIN_SERVER" \
            --username 00000000-0000-0000-0000-000000000000 \
            --password "$ACR_TOKEN"
          echo "✓ ACR login successful"

      - name: Build and Push Docker image
        run: |
          IMAGE_TAG="${{ gitea.sha }}"
          IMAGE_FULL="${ACR_LOGIN_SERVER}/tmpl-test-go:${IMAGE_TAG}"
          IMAGE_LATEST="${ACR_LOGIN_SERVER}/tmpl-test-go:latest"
          docker build -t "$IMAGE_FULL" -t "$IMAGE_LATEST" .
          docker push "$IMAGE_FULL"
          docker push "$IMAGE_LATEST"
          echo "IMAGE_FULL=$IMAGE_FULL" >> $GITHUB_ENV
          echo "✓ Pushed: $IMAGE_FULL"

      - name: Build Summary
        run: |
          echo "### ✅ Build Successful" >> $GITHUB_STEP_SUMMARY
          echo "| | |" >> $GITHUB_STEP_SUMMARY
          echo "|---|---|" >> $GITHUB_STEP_SUMMARY
          echo "| **Service** | tmpl-test-go |" >> $GITHUB_STEP_SUMMARY
          echo "| **Runtime** | Go |" >> $GITHUB_STEP_SUMMARY
          echo "| **Commit** | ${{ gitea.sha }} |" >> $GITHUB_STEP_SUMMARY
          echo "| **Image** | $IMAGE_FULL |" >> $GITHUB_STEP_SUMMARY