name: "[Deployment] Automatic Weekly Release"

on:
  schedule:
    - cron: "0 19 * * 5" # https://crontab.guru/#0_19_*_*_5
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  create-and-merge-pr:
    runs-on: ubuntu-latest
    steps:
      - name: Discord notification
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "Automatic release has been triggered: [run ${{ github.run_number }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})"
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Get Next Version
        id: semver
        uses: ietf-tools/semver-action@v1
        with:
          token: ${{ github.token }}
          branch: dev
      - name: Create pull request
        uses: devops-infra/action-pull-request@v0.5.5
        id: create-pull-request
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          title: "(chore): automatic release ${{ steps.semver.outputs.next }}"
          new_string: "**This is an automatic release**.<br/>Manual action may be required for major bumps.<br/>Detected change to be ``${{ steps.semver.outputs.bump }}``<br/>Bump version from ``${{ steps.semver.outputs.current }}`` to ``${{ steps.semver.outputs.next }}``"
          source_branch: dev
          target_branch: main
          label: automerge
      - name: Discord notification
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "Created a release PR ${{ steps.create-pull-request.outputs.url }} for version ${{ steps.semver.outputs.next }} (new behaviour: ${{ steps.semver.outputs.bump }})"
      - id: automerge
        if: ${{ steps.semver.outputs.bump != 'major' }}
        name: automerge
        uses: "pascalgn/automerge-action@v0.16.3"
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          MERGE_METHOD: merge # we prefer merge commits for merging to master
          MERGE_COMMIT_MESSAGE: "(chore): automatic release ${{ steps.semver.outputs.next }}"
          MERGE_DELETE_BRANCH: false # never set to true!
          PULL_REQUEST: "${{ steps.create-pull-request.outputs.pr_number }}"
          MERGE_RETRIES: 20 # 20 retries * MERGE_RETRY_SLEEP until step fails
          MERGE_RETRY_SLEEP: 10000 # 10 seconds * MERGE_RETRIES until step fails
          MERGE_REQUIRED_APPROVALS: 0 # do not require approvals

      - name: Merged Discord notification
        if: ${{ steps.automerge.outputs.mergeResult == 'merged' }}
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "Merged PR ${{ steps.create-pull-request.outputs.url }} for release ${{ steps.semver.outputs.next }}"
      - name: Major Bump Discord notification
        if: ${{ steps.semver.outputs.bump == 'major' }}
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "The release PR must be manually merged because the next version is a major version: ${{ steps.create-pull-request.outputs.url }} for release ${{ steps.semver.outputs.next }}"
      - name: Discord Fail Notification
        if: failure()
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "The automatic release workflow [run ${{ github.run_number }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) has failed"