scheduler.yml

name: Rebuild Check

on:
  schedule:
    # Run daily at midnight JST (3pm UTC)
    - cron: "0 15 * * *"
  workflow_dispatch:

jobs:
  check-and-trigger:
    name: Check for updates and trigger build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Check for content updates or event end
        id: check-updates
        run: |
          UPSTREAM_REPO="oktechjp/public"

          # Read current values from meta.json
          CURRENT_COMMIT=$(jq -r '.commitHash' meta.json)
          CURRENT_CONTENT_HASH=$(jq -r '.contentHash // ""' meta.json)
          NEXT_EVENT_ENDS=$(jq -r '.nextEventEnds' meta.json)

          echo "Current commit: $CURRENT_COMMIT"
          echo "Current content hash: $CURRENT_CONTENT_HASH"
          echo "Next event ends: $NEXT_EVENT_ENDS"

          # Get latest commit from upstream main branch
          LATEST_COMMIT=$(curl -s "https://api.github.com/repos/$UPSTREAM_REPO/commits/main" | jq -r '.sha')
          echo "Latest upstream commit: $LATEST_COMMIT"

          # Initialize NEEDS_BUILD flag
          NEEDS_BUILD=false

          # First check if an event has ended (this always needs checking)
          if [ "$NEXT_EVENT_ENDS" != "null" ] && [ "$NEXT_EVENT_ENDS" != "" ]; then
            CURRENT_TIME=$(date -u +"%Y-%m-%dT%H:%M:%S.000Z")
            if [[ "$CURRENT_TIME" > "$NEXT_EVENT_ENDS" ]]; then
              echo "Event has ended, triggering rebuild to update event status"
              NEEDS_BUILD=true
            fi
          fi

          # Early exit if commits are the same and no event ended
          if [ "$CURRENT_COMMIT" = "$LATEST_COMMIT" ] && [ "$NEEDS_BUILD" = false ]; then
            echo "Commits are identical and no event has ended. No updates needed."
            echo "NEEDS_BUILD=false" >> $GITHUB_ENV
            exit 0
          fi

          # Only fetch content if commits are different
          if [ "$CURRENT_COMMIT" != "$LATEST_COMMIT" ]; then
            echo "Commit has changed, fetching content to check for actual changes..."

            # Fetch and hash the content from latest commit
            EVENTS_URL="https://raw.githubusercontent.com/$UPSTREAM_REPO/$LATEST_COMMIT/events.json"
            PHOTOS_URL="https://raw.githubusercontent.com/$UPSTREAM_REPO/$LATEST_COMMIT/photos.json"

            echo "Fetching events.json and photos.json from latest commit..."

            # Download both files and compute combined hash
            EVENTS_CONTENT=$(curl -sL "$EVENTS_URL")
            PHOTOS_CONTENT=$(curl -sL "$PHOTOS_URL")

            # Compute hash of combined content
            COMBINED_CONTENT="${EVENTS_CONTENT}${PHOTOS_CONTENT}"
            NEW_CONTENT_HASH=$(echo -n "$COMBINED_CONTENT" | sha256sum | cut -d' ' -f1)

            echo "New content hash: $NEW_CONTENT_HASH"

            # Check for content changes (via hash)
            if [ "$CURRENT_CONTENT_HASH" != "$NEW_CONTENT_HASH" ]; then
              echo "Content has changed (hash mismatch)!"
              NEEDS_BUILD=true
            else
              echo "Commit changed but content is identical (hash match)"
            fi
          fi

          echo "NEEDS_BUILD=$NEEDS_BUILD" >> $GITHUB_ENV

      - name: Trigger import workflow
        if: env.NEEDS_BUILD == 'true'
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            await github.rest.actions.createWorkflowDispatch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'import.yml',
              ref: 'main'
            })
            console.log('Import workflow triggered successfully')