name: Scheduled Calendar Scraping

on:
  schedule:
    - cron: '0 0 * * *' # Runs daily at midnight UTC
  workflow_dispatch:
    inputs:
      year:
        description: 'Year to scrape (optional, defaults to current BS year)'
        required: false
        type: string

permissions:
  contents: write

jobs:
  scrape:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.PAT_TOKEN }}
          fetch-depth: 0  # needed for pushes

      - name: Install uv
        uses: astral-sh/setup-uv@v5

      - name: Install Python 3.13
        run: uv python install 3.13

      - name: Determine current Nepali year and run scraper
        run: |
          set -e  # stop on errors

          MANUAL_YEAR="${{ github.event.inputs.year }}"

          if [ -n "$MANUAL_YEAR" ]; then
            echo "Using manually specified year: $MANUAL_YEAR"
            uv run python -- scraper.py "$MANUAL_YEAR" --dir
          else
            # Get current AD date components
            AD_YEAR=$(date +%Y)
            AD_MONTH=$(date +%-m)  # remove leading zero
            AD_DAY=$(date +%-d)

            # Calculate approximate BS year
            BS_YEAR=$((AD_YEAR + 56))
            if [ "$AD_MONTH" -gt 4 ] || ([ "$AD_MONTH" -eq 4 ] && [ "$AD_DAY" -ge 14 ]); then
              BS_YEAR=$((BS_YEAR + 1))
            fi
            echo "Current Nepali Year (approx): $BS_YEAR"

            # Scrape current year
            uv run python -- scraper.py "$BS_YEAR" --dir

            # Scrape next year if within first 15 days of BS New Year
            if [ "$AD_MONTH" -eq 4 ] && [ "$AD_DAY" -ge 14 ] && [ "$AD_DAY" -le 28 ]; then
              NEXT_YEAR=$((BS_YEAR + 1))
              echo "Near New Year, also scraping next year: $NEXT_YEAR"
              uv run python -- scraper.py "$NEXT_YEAR" --dir
            fi
          fi

      - name: Commit and push changes using PAT
        env:
          PAT_TOKEN: ${{ secrets.PAT_TOKEN }}
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
          
          git add data/
          
          # Commit only if there are changes
          git diff-index --quiet HEAD || git commit -m "Automated update of Nepali calendar data"
          
          # Pull latest changes to avoid conflicts
          git pull --rebase origin main || true
          
          # Push using PAT and set upstream
          git push --set-upstream https://x-access-token:${PAT_TOKEN}@github.com/${GITHUB_REPOSITORY}.git HEAD:main