name: "DotNet SDK Upgrade"

on:
  schedule:
    - cron: "0 8 * * 1" # Weekly on Monday at 8 AM UTC (independent of Node.js/NPM)
  workflow_dispatch:

jobs:
  dotnet-update:
    runs-on: ubuntu-latest
    outputs:
      SHOULD_UPDATE: ${{ steps.fetch_latest_version.outputs.SHOULD_UPDATE }}
      BRANCH_EXISTS: ${{ steps.fetch_latest_version.outputs.BRANCH_EXISTS }}
      DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION: ${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
      DOTNET_CURRENT_MAJOR_MINOR_VERSION: ${{ steps.fetch_current_version.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
      - name: Get current major minor version
        id: fetch_current_version
        shell: bash
        run: |
          current_major_minor_patch_version=$(jq .sdk.version ./src/global.json | xargs)
          current_major_minor_version=$(cut -d '.' -f 1,2 <<< "$current_major_minor_patch_version")

          echo "DOTNET_CURRENT_MAJOR_MINOR_PATCH_VERSION=${current_major_minor_patch_version}" >> $GITHUB_OUTPUT
          echo "DOTNET_CURRENT_MAJOR_MINOR_VERSION=${current_major_minor_version}" >> $GITHUB_OUTPUT
      - name: Check patch version
        id: fetch_latest_version
        shell: bash
        run: |
          latest_patch_version=$(curl -sb -H "Accept: application/json" "https://dotnetcli.blob.core.windows.net/dotnet/Sdk/${{ steps.fetch_current_version.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}/latest.version")
          current_patch_version=${{ steps.fetch_current_version.outputs.DOTNET_CURRENT_MAJOR_MINOR_PATCH_VERSION }}

          should_update=0
          [ "$current_patch_version" != "$latest_patch_version" ] && should_update=1

          # check if git branch already exists for the upgrade
          branch_already_exists=0

          if git ls-remote --heads --exit-code origin refs/heads/feature/dotnetsdk-upgrade/${latest_patch_version};
          then 
            branch_already_exists=1
            should_update=0
          fi
          echo "DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION=${latest_patch_version}" >> $GITHUB_OUTPUT
          echo "SHOULD_UPDATE=${should_update}" >> $GITHUB_OUTPUT
          echo "BRANCH_EXISTS=${branch_already_exists}" >> $GITHUB_OUTPUT
      - name: Create an error annotation if branch exists
        if: ${{ steps.fetch_latest_version.outputs.BRANCH_EXISTS == 1 }}
        run: echo "::error links::feature/dotnet-sdk-upgrade${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }} https://github.com/actions/runner/tree/feature/dotnet-sdk-upgrade${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}::Branch feature/dotnetsdk-upgrade/${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }} already exists. Please take a look and delete that branch if you wish to recreate"
      - name: Create a warning annotation if no need to update
        if: ${{ steps.fetch_latest_version.outputs.SHOULD_UPDATE == 0 && steps.fetch_latest_version.outputs.BRANCH_EXISTS == 0 }}
        run: echo "::warning ::Latest DotNet SDK patch is ${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}, and we are on ${{ steps.fetch_current_version.outputs.DOTNET_CURRENT_MAJOR_MINOR_PATCH_VERSION }}. No need to update"
      - name: Update patch version
        if: ${{ steps.fetch_latest_version.outputs.SHOULD_UPDATE == 1 && steps.fetch_latest_version.outputs.BRANCH_EXISTS == 0 }}
        shell: bash
        run: |
          patch_version="${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}"
          current_version="${{ steps.fetch_current_version.outputs.DOTNET_CURRENT_MAJOR_MINOR_PATCH_VERSION }}"

          # Update globals
          echo Updating globals
          globals_temp=$(mktemp)
          jq --unbuffered --arg patch_version "$patch_version" '.sdk.version = $patch_version' ./src/global.json > "$globals_temp" && mv "$globals_temp" ./src/global.json

          # Update devcontainer
          echo Updating devcontainer
          devcontainer_temp=$(mktemp)
          jq --unbuffered --arg patch_version "$patch_version" '.features."ghcr.io/devcontainers/features/dotnet".version = $patch_version' ./.devcontainer/devcontainer.json > "$devcontainer_temp" && mv "$devcontainer_temp" ./.devcontainer/devcontainer.json

          # Update dev.sh
          echo Updating start script
          sed -i "s/DOTNETSDK_VERSION=\"$current_version\"/DOTNETSDK_VERSION=\"$patch_version\"/g" ./src/dev.sh
      - name: GIT commit and push all changed files
        if: ${{ steps.fetch_latest_version.outputs.SHOULD_UPDATE == 1 && steps.fetch_latest_version.outputs.BRANCH_EXISTS == 0 }}
        id: create_branch
        run: |
          branch_name="feature/dotnetsdk-upgrade/${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}"
          git config --global user.name "github-actions[bot]"
          git config --global user.email "<41898282+github-actions[bot]@users.noreply.github.com>"

          git checkout -b $branch_name
          git commit -a -m "Upgrade dotnet sdk to v${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}"
          git push --set-upstream origin $branch_name

  create-pr:
    needs: [dotnet-update]
    if: ${{ needs.dotnet-update.outputs.SHOULD_UPDATE == 1 && needs.dotnet-update.outputs.BRANCH_EXISTS == 0 }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          ref: feature/dotnetsdk-upgrade/${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
      - name: Create Pull Request
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh pr create -B main -H feature/dotnetsdk-upgrade/${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }} --title "Update dotnet sdk to latest version @${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}" --label "dependencies" --label "dependencies-weekly-check" --label "dependencies-not-dependabot" --label "dotnet" --body "
            https://dotnetcli.blob.core.windows.net/dotnet/Sdk/${{ needs.dotnet-update.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}/latest.version
            
              
            ---
              
            Autogenerated by [DotNet SDK Upgrade Workflow](https://github.com/actions/runner/blob/main/.github/workflows/dotnet-upgrade.yml)"