name: Update champions data

on:
  schedule:
    # Every Thursday at 06:00 UTC (day after Riot's Wednesday patch)
    - cron: "0 6 * * 4"
  workflow_dispatch:

permissions:
  contents: write
  actions: write

concurrency:
  group: update-champions
  cancel-in-progress: false

jobs:
  update:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: Set up Go
        uses: actions/setup-go@v6
        with:
          go-version-file: data/go.mod

      - name: Run scraper
        run: go run .
        working-directory: data

      - name: Copy data into the web app
        run: cp data/champions.json web/static/champions.json

      - name: Commit and push if changed
        id: commit
        run: |
          set -euo pipefail
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add data/champions.json data/CHAMPIONS.md web/static/champions.json
          if git diff --cached --quiet; then
            echo "No changes to commit"
            exit 0
          fi
          git commit -m "chore(data): update champions data to latest patch"
          git push
          echo "changed=true" >> "$GITHUB_OUTPUT"

      # A push made with GITHUB_TOKEN does not trigger other workflows,
      # so the Pages deploy has to be started explicitly.
      - name: Trigger deploy
        if: steps.commit.outputs.changed == 'true'
        run: gh workflow run deploy.yml --ref main
        env:
          GH_TOKEN: ${{ github.token }}