name: Deploy

on:
  push:
    branches: [master]
    paths-ignore:
      - '**.md'
      - 'LICENSE'
      - '.gitignore'
      - 'docs/**'

concurrency:
  group: deploy
  cancel-in-progress: true

jobs:
  test:
    runs-on: self-hosted
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Install dependencies
        run: npm ci --production=false

      - name: Detect changes
        id: changes
        run: |
          BACKEND=$(git diff --name-only HEAD~1 | grep -cE '^(server|db|decoder|packet-store|server-helpers|iata-coords)\.js$' || true)
          FRONTEND=$(git diff --name-only HEAD~1 | grep -cE '^public/' || true)
          TESTS=$(git diff --name-only HEAD~1 | grep -cE '^test-|^tools/' || true)
          CI=$(git diff --name-only HEAD~1 | grep -cE '\.github/|package\.json|test-all\.sh|scripts/' || true)
          # If CI/test infra changed, run everything
          if [ "$CI" -gt 0 ]; then BACKEND=1; FRONTEND=1; fi
          # If test files changed, run everything
          if [ "$TESTS" -gt 0 ]; then BACKEND=1; FRONTEND=1; fi
          echo "backend=$([[ $BACKEND -gt 0 ]] && echo true || echo false)" >> $GITHUB_OUTPUT
          echo "frontend=$([[ $FRONTEND -gt 0 ]] && echo true || echo false)" >> $GITHUB_OUTPUT
          echo "Changes: backend=$BACKEND frontend=$FRONTEND tests=$TESTS ci=$CI"

      - name: Backend tests + coverage
        if: steps.changes.outputs.backend == 'true'
        run: |
          npx c8 --reporter=text-summary --reporter=text sh test-all.sh 2>&1 | tee test-output.txt
          
          TOTAL_PASS=$(grep -oP '\d+(?= passed)' test-output.txt | awk '{s+=$1} END {print s}')
          TOTAL_FAIL=$(grep -oP '\d+(?= failed)' test-output.txt | awk '{s+=$1} END {print s}')
          BE_COVERAGE=$(grep 'Statements' test-output.txt | tail -1 | grep -oP '[\d.]+(?=%)')
          
          mkdir -p .badges
          BE_COLOR="red"
          [ "$(echo "$BE_COVERAGE > 60" | bc -l 2>/dev/null)" = "1" ] && BE_COLOR="yellow"
          [ "$(echo "$BE_COVERAGE > 80" | bc -l 2>/dev/null)" = "1" ] && BE_COLOR="brightgreen"
          echo "{\"schemaVersion\":1,\"label\":\"backend tests\",\"message\":\"${TOTAL_PASS} passed\",\"color\":\"brightgreen\"}" > .badges/backend-tests.json
          echo "{\"schemaVersion\":1,\"label\":\"backend coverage\",\"message\":\"${BE_COVERAGE}%\",\"color\":\"${BE_COLOR}\"}" > .badges/backend-coverage.json
          
          echo "## Backend: ${TOTAL_PASS} tests, ${BE_COVERAGE}% coverage" >> $GITHUB_STEP_SUMMARY

      - name: Backend tests (quick — no coverage)
        if: steps.changes.outputs.backend == 'false'
        run: npm run test:unit

      - name: Install Playwright browser
        if: steps.changes.outputs.frontend == 'true'
        run: npx playwright install chromium --with-deps 2>/dev/null || true

      - name: Frontend coverage (instrumented Playwright)
        if: steps.changes.outputs.frontend == 'true'
        run: |
          sh scripts/instrument-frontend.sh
          COVERAGE=1 PORT=13581 node server.js &
          SERVER_PID=$!
          sleep 5
          
          BASE_URL=http://localhost:13581 node test-e2e-playwright.js 2>&1 | tee e2e-output.txt
          E2E_PASS=$(grep -oP '[0-9]+(?=/)' e2e-output.txt | tail -1)
          
          BASE_URL=http://localhost:13581 node scripts/collect-frontend-coverage.js 2>&1 | tee fe-coverage-output.txt
          kill $SERVER_PID 2>/dev/null || true
          
          mkdir -p .badges
          if [ -f .nyc_output/frontend-coverage.json ]; then
            npx nyc report --reporter=text-summary --reporter=text 2>&1 | tee fe-report.txt
            FE_COVERAGE=$(grep 'Statements' fe-report.txt | head -1 | grep -oP '[\d.]+(?=%)' || echo "0")
            FE_COVERAGE=${FE_COVERAGE:-0}
            FE_COLOR="red"
            [ "$(echo "$FE_COVERAGE > 50" | bc -l 2>/dev/null)" = "1" ] && FE_COLOR="yellow"
            [ "$(echo "$FE_COVERAGE > 80" | bc -l 2>/dev/null)" = "1" ] && FE_COLOR="brightgreen"
            echo "{\"schemaVersion\":1,\"label\":\"frontend coverage\",\"message\":\"${FE_COVERAGE}%\",\"color\":\"${FE_COLOR}\"}" > .badges/frontend-coverage.json
            echo "## Frontend: ${FE_COVERAGE}% coverage" >> $GITHUB_STEP_SUMMARY
          fi
          echo "{\"schemaVersion\":1,\"label\":\"frontend tests\",\"message\":\"${E2E_PASS:-0} E2E passed\",\"color\":\"brightgreen\"}" > .badges/frontend-tests.json

      - name: Frontend E2E only (no coverage)
        if: steps.changes.outputs.frontend == 'false'
        run: |
          PORT=13581 node server.js &
          SERVER_PID=$!
          sleep 5
          BASE_URL=http://localhost:13581 node test-e2e-playwright.js || true
          kill $SERVER_PID 2>/dev/null || true

      - name: Publish badges
        if: always()
        continue-on-error: true
        run: |
          git config user.name "github-actions"
          git config user.email "actions@github.com"
          git remote set-url origin https://x-access-token:${{ github.token }}@github.com/${{ github.repository }}.git
          git add .badges/ -f
          git diff --cached --quiet || (git commit -m "ci: update test badges [skip ci]" && git push) || echo "Badge push failed"

  deploy:
    needs: test
    runs-on: self-hosted
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Validate JS
        run: sh scripts/validate.sh

      - name: Build and deploy
        run: |
          set -e
          docker build -t meshcore-analyzer .
          docker rm -f meshcore-analyzer 2>/dev/null || true
          docker run -d \
            --name meshcore-analyzer \
            --restart unless-stopped \
            -p 80:80 -p 443:443 -p 1883:1883 \
            -v $HOME/meshcore-data:/app/data \
            -v $HOME/meshcore-config.json:/app/config.json:ro \
            -v $HOME/caddy-data:/data/caddy \
            -v $HOME/meshcore-analyzer/Caddyfile:/etc/caddy/Caddyfile \
            meshcore-analyzer
          echo "Deployed $(git rev-parse --short HEAD)"