name: Weekly Edge Release

on:
  schedule:
    - cron: '0 7 * * 1'  # Every Monday at 9 AM CET
  workflow_dispatch:

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
      - name: generating date metadata
        id: date
        run: |
          CURRENT_DATE=$(date -u +'%Y-%m-%d')
          YY=$(date -u +'%y')
          M=$(date -u +'%_m' | sed 's/ //g')
          FIRST_OF_MONTH=$(date -u -d "$CURRENT_DATE" +%Y-%m-01)
          WEEK_NUM=$(( (($(date -u +%s) - $(date -u -d "$FIRST_OF_MONTH" +%s)) / 86400 + $(date -u -d "$FIRST_OF_MONTH" +%u) - 1) / 7 + 1 ))

          echo "yy=$YY" >> $GITHUB_OUTPUT
          echo "month=$M" >> $GITHUB_OUTPUT
          echo "week=$WEEK_NUM" >> $GITHUB_OUTPUT
          echo "date=$CURRENT_DATE" >> $GITHUB_OUTPUT
      - name: generating tag metadata
        id: tag
        run: |
          TAG="edge-${{ steps.date.outputs.yy }}.${{ steps.date.outputs.month }}.${{ steps.date.outputs.week }}"
          echo "tag=$TAG" >> $GITHUB_OUTPUT
      - name: generate release notes from template
        run: |
          export TAG="${{ steps.tag.outputs.tag }}"
          envsubst < .github/release-template.md > release-notes.md
      - name: generate release notes from template
        run: |
          export TAG="${{ steps.tag.outputs.tag }}"
          envsubst < .github/release-template.md > release-notes-header.md
      - name: generate GitHub release notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release --repo "$GITHUB_REPOSITORY" \
            create "${{ steps.tag.outputs.tag }}" \
            --generate-notes \
            --draft \
            --title "temp" \
            --notes "temp" > /dev/null || true
          
          gh release view "${{ steps.tag.outputs.tag }}" \
            --json body --jq .body > auto-notes.md
          
          gh release delete "${{ steps.tag.outputs.tag }}" --yes || true
      - name: combine notes
        run: |
          cat release-notes-header.md auto-notes.md > release-notes.md
      - name: create GitHub release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release create "${{ steps.tag.outputs.tag }}" \
            --title "${{ steps.tag.outputs.tag }}" \
            --notes-file release-notes.md
      - name: trigger container build workflow
        env:
          GH_TOKEN: ${{ secrets.WORKFLOW_TOKEN }}
        run: |
          gh workflow run "Container image build" \
            --ref master \
            -f tag="${{ steps.tag.outputs.tag }}"