name: Weekly Flake Update PR

on:
  schedule:
    # Every Friday at 22:00 UTC
    - cron: '0 22 * * 5'
  workflow_dispatch: {}

jobs:
  create-pr:
    runs-on: nix
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "Flake Update Bot"
          git config user.email "git@noreply.local"

      - name: Update flake inputs
        run: nix flake update

      - name: Check for changes
        id: changes
        run: |
          if git diff --quiet flake.lock; then
            echo "changed=false" >> $FORGEJO_OUTPUT
            echo "No changes to flake.lock"
          else
            echo "changed=true" >> $FORGEJO_OUTPUT
            echo "flake.lock has been updated"
          fi

      - name: Create branch and commit
        id: commit
        if: steps.changes.outputs.changed == 'true'
        run: |
          BRANCH_NAME="auto-update/$(date +%Y-%m-%d)"
          git checkout -b "$BRANCH_NAME"
          git add flake.lock
          git commit -m "chore: update flake inputs $(date +%Y-%m-%d)"
          git push origin "$BRANCH_NAME"
          echo "branch_name=$BRANCH_NAME" >> $FORGEJO_OUTPUT
          echo "Created and pushed branch: $BRANCH_NAME"

      - name: Debug API values
        if: steps.changes.outputs.changed == 'true'
        run: |
          echo "API URL: ${{ forgejo.api_url }}"
          echo "Server URL: ${{ forgejo.server_url }}"
          echo "Repository: ${{ forgejo.repository }}"
          echo "Branch: ${{ steps.commit.outputs.branch_name }}"

      - name: Create Pull Request
        if: steps.changes.outputs.changed == 'true'
        uses: https://github.com/timherrm/forgejo-CreatePR@main
        with:
          api_url: ${{ forgejo.server_url }}/api/v1
          token: ${{ secrets.FORGEJO_TOKEN }}
          repository: ${{ forgejo.repository }}
          head: ${{ steps.commit.outputs.branch_name }}
          base: master
          title: "chore: weekly flake update"
          body: "Automated flake update from CI.\n\nThis PR updates all flake inputs.\n\n**Note:** Build verification will run automatically on this PR."
          assignees: "pazpi"