name: Deploy Production

on:
  push:
    branches: [main]
  workflow_dispatch:
    inputs:
      apps:
        description: "Comma-separated app names to build (leave empty for all)"
        required: false
        default: ""

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Setup and install
        run: |
          export COREPACK_HOME=/pnpm-store/.corepack
          corepack enable && corepack prepare pnpm@latest --activate
          export PNPM_STORE_DIR=/pnpm-store
          pnpm install --frozen-lockfile

      - name: Determine changed apps
        id: changes
        run: |
          if [ "${{ gitea.event_name }}" = "workflow_dispatch" ]; then
            INPUT="${{ gitea.event.inputs.apps }}"
            if [ -z "$INPUT" ]; then
              APPS="web,api,harness"
            else
              APPS="$INPUT"
            fi
          else
            APPS=$(pnpm turbo build --filter='...[HEAD~1]' --dry-run=json | jq -r '[.packages[] | select(startswith("@homelab/")) | sub("@homelab/";"") ] | join(",")' | tr ',' '\n' | while read app; do if [ -f "apps/${app}/Dockerfile" ]; then echo "$app"; fi; done | paste -sd, -)
          fi
          echo "apps=$APPS" >> "$GITHUB_OUTPUT"

      - name: Build and push images
        if: steps.changes.outputs.apps != ''
        run: |
          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login gitea.coreworlds.io -u lazorgurl --password-stdin
          IFS=',' read -ra APPS <<< "${{ steps.changes.outputs.apps }}"
          for app in "${APPS[@]}"; do
            if [ -f "apps/${app}/.dockercontext" ]; then
              CONTEXT="."
            else
              CONTEXT="apps/${app}"
            fi
            docker build \
              -t gitea.coreworlds.io/lazorgurl/homelab-${app}:${{ gitea.sha }} \
              -t gitea.coreworlds.io/lazorgurl/homelab-${app}:latest \
              -f apps/${app}/Dockerfile \
              $CONTEXT
            docker push gitea.coreworlds.io/lazorgurl/homelab-${app}:${{ gitea.sha }}
            docker push gitea.coreworlds.io/lazorgurl/homelab-${app}:latest
          done

      - name: Update image tags in production overlay
        if: steps.changes.outputs.apps != ''
        run: |
          IFS=',' read -ra APPS <<< "${{ steps.changes.outputs.apps }}"
          for app in "${APPS[@]}"; do
            cd apps/${app}/k8s/overlays/production
            kustomize edit set image gitea.coreworlds.io/lazorgurl/homelab-${app}=gitea.coreworlds.io/lazorgurl/homelab-${app}:${{ gitea.sha }}
            cd -
          done

      - name: Commit image tag updates
        if: steps.changes.outputs.apps != ''
        run: |
          git config user.name "gitea-actions[bot]"
          git config user.email "gitea-actions[bot]@coreworlds.io"
          git add apps/*/k8s/overlays/production/
          git diff --staged --quiet || git commit -m "deploy: update production images to ${{ gitea.sha }}"
          git push