name: CI

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  python-quality:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install --extra-index-url https://download.pytorch.org/whl/cpu -r requirements.lock -r requirements-dev.lock

      - name: Ruff
        run: python -m ruff check .

      - name: Pytest
        run: python -m pytest

  frontend-quality:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: frontend
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: "npm"
          cache-dependency-path: frontend/package-lock.json

      - name: Install dependencies
        run: npm ci

      - name: Business state tests
        run: npm run test:business

  build-and-push:
    needs: [python-quality, frontend-quality]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    strategy:
      matrix:
        image:
          - name: backend
            context: .
            file: Dockerfile
            tag: ghcr.io/yangyuan-zhen/polyweather-backend
          - name: frontend
            context: ./frontend
            file: ./frontend/Dockerfile
            tag: ghcr.io/yangyuan-zhen/polyweather-frontend
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push image
        env:
          IMAGE_NAME: ${{ matrix.image.name }}
          IMAGE_CONTEXT: ${{ matrix.image.context }}
          IMAGE_FILE: ${{ matrix.image.file }}
          IMAGE_TAG: ${{ matrix.image.tag }}
          NEXT_PUBLIC_SUPABASE_URL: ${{ secrets.NEXT_PUBLIC_SUPABASE_URL }}
          NEXT_PUBLIC_SUPABASE_ANON_KEY: ${{ secrets.NEXT_PUBLIC_SUPABASE_ANON_KEY }}
          NEXT_PUBLIC_SITE_URL: ${{ secrets.NEXT_PUBLIC_SITE_URL || 'https://polyweather.top' }}
          NEXT_PUBLIC_POLYWEATHER_API_BASE_URL: ${{ secrets.NEXT_PUBLIC_POLYWEATHER_API_BASE_URL || '' }}
          NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID: ${{ secrets.NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID || '' }}
          NEXT_PUBLIC_WALLETCONNECT_POLYGON_RPC_URL: ${{ secrets.NEXT_PUBLIC_WALLETCONNECT_POLYGON_RPC_URL || 'https://polygon-bor-rpc.publicnode.com' }}
          NEXT_PUBLIC_PAYMENT_ALLOWED_HOSTS: ${{ secrets.NEXT_PUBLIC_PAYMENT_ALLOWED_HOSTS || 'polyweather.top,www.polyweather.top' }}
          NEXT_PUBLIC_TURNSTILE_SITE_KEY: ${{ secrets.NEXT_PUBLIC_TURNSTILE_SITE_KEY || '' }}
        run: |
          set -euo pipefail

          tags=(-t "${IMAGE_TAG}:latest" -t "${IMAGE_TAG}:${GITHUB_SHA}")
          build_args=()

          if [ "${IMAGE_NAME}" = "frontend" ]; then
            build_args=(
              --build-arg "NEXT_PUBLIC_SUPABASE_URL=${NEXT_PUBLIC_SUPABASE_URL}"
              --build-arg "NEXT_PUBLIC_SUPABASE_ANON_KEY=${NEXT_PUBLIC_SUPABASE_ANON_KEY}"
              --build-arg "NEXT_PUBLIC_SITE_URL=${NEXT_PUBLIC_SITE_URL}"
              --build-arg "NEXT_PUBLIC_POLYWEATHER_API_BASE_URL=${NEXT_PUBLIC_POLYWEATHER_API_BASE_URL}"
              --build-arg "NEXT_PUBLIC_POLYWEATHER_LOCAL_FULL_ACCESS=false"
              --build-arg "NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID=${NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID}"
              --build-arg "NEXT_PUBLIC_WALLETCONNECT_POLYGON_RPC_URL=${NEXT_PUBLIC_WALLETCONNECT_POLYGON_RPC_URL}"
              --build-arg "NEXT_PUBLIC_PAYMENT_ALLOWED_HOSTS=${NEXT_PUBLIC_PAYMENT_ALLOWED_HOSTS}"
              --build-arg "NEXT_PUBLIC_TURNSTILE_SITE_KEY=${NEXT_PUBLIC_TURNSTILE_SITE_KEY}"
            )
          fi

          docker build -f "${IMAGE_FILE}" "${tags[@]}" "${build_args[@]}" "${IMAGE_CONTEXT}"
          docker push "${IMAGE_TAG}:latest"
          docker push "${IMAGE_TAG}:${GITHUB_SHA}"

  cloudflare-cache-rules:
    needs: [python-quality]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Apply Cloudflare cache rules
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          CLOUDFLARE_ZONE_ID: ${{ secrets.CLOUDFLARE_ZONE_ID }}
        run: |
          if [ -z "${CLOUDFLARE_API_TOKEN}" ]; then
            echo "CLOUDFLARE_API_TOKEN is not configured; skipping Cache Rules sync"
            exit 0
          fi
          if [ -z "${CLOUDFLARE_ZONE_ID}" ]; then
            echo "CLOUDFLARE_ZONE_ID is not configured; skipping Cache Rules sync"
            exit 0
          fi
          python scripts/configure_cloudflare_free.py --apply

  deploy:
    needs: [build-and-push]
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    concurrency:
      group: polyweather-production-deploy
      cancel-in-progress: false
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Deploy to VPS
        env:
          GHCR_PAT: ${{ secrets.GHCR_PAT }}
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.VPS_SSH_KEY }}" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          scp -o StrictHostKeyChecking=accept-new deploy.sh ${{ secrets.VPS_USER }}@${{ secrets.VPS_HOST }}:/tmp/deploy.sh
          printf '%s\n' "$GHCR_PAT" | ssh -o StrictHostKeyChecking=accept-new ${{ secrets.VPS_USER }}@${{ secrets.VPS_HOST }} "
            bash /tmp/deploy.sh '${{ github.sha }}'
          "