name: Refresh prices and deploy Pages

on:
  push:
    branches: [main]
  workflow_dispatch:
  schedule:
    - cron: "17 3 * * *"
      timezone: "Asia/Shanghai"

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: github-pages
  cancel-in-progress: true

jobs:
  schedule-gate:
    runs-on: ubuntu-latest
    outputs:
      run: ${{ steps.gate.outputs.run }}
    steps:
      - id: gate
        name: Run pushes and manual dispatches immediately; schedules every two days
        shell: bash
        run: |
          if [[ "${{ github.event_name }}" != "schedule" ]]; then
            echo "run=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi
          epoch_day=$(( $(date -u +%s) / 86400 ))
          if (( epoch_day % 2 == 0 )); then
            echo "run=true" >> "$GITHUB_OUTPUT"
          else
            echo "run=false" >> "$GITHUB_OUTPUT"
          fi

  build:
    needs: schedule-gate
    if: needs.schedule-gate.outputs.run == 'true'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Set up Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test

      - name: Locate the previous deployed snapshot
        shell: bash
        run: |
          owner="${GITHUB_REPOSITORY%%/*}"
          repo="${GITHUB_REPOSITORY##*/}"
          if [[ "${repo,,}" == "${owner,,}.github.io" ]]; then
            url="https://${owner}.github.io/data/prices.json"
          else
            url="https://${owner}.github.io/${repo}/data/prices.json"
          fi
          echo "PREVIOUS_SNAPSHOT_URL=$url" >> "$GITHUB_ENV"

      - name: Probe the OpenAI pricing endpoint
        run: npm run probe

      - name: Collect and validate official monthly prices
        env:
          MIN_FIRST_RUN_ROWS: 20
          PRICING_CONCURRENCY: 4
        run: npm run collect

      - name: Type-check and build
        run: npm run build

      - name: Configure Pages
        uses: actions/configure-pages@v5

      - name: Upload Pages artifact
        uses: actions/upload-pages-artifact@v4
        with:
          path: dist

  deploy:
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4