name: Nightly AI Codegen

on:
  schedule:
    - cron: "0 0 * * *" # Midnight UTC daily
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions: {}

jobs:
  codegen:
    name: AI Codegen
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    timeout-minutes: 15
    steps:
      - uses: actions/checkout@v6

      - name: Install dependencies
        uses: ./.github/actions/setup

      - name: Run AI Codegen
        run: node packages/tools/ai-codegen/src/bin.ts generate

      - name: Check for changes
        id: changes
        run: |
          # Only consider changes in packages/ai/
          providers=$(git diff --name-only | grep "^packages/ai/" | cut -d'/' -f3 | sort -u | sed 's/^/- /' || true)
          if [ -z "$providers" ]; then
            echo "has_changes=false" >> $GITHUB_OUTPUT
          else
            echo "has_changes=true" >> $GITHUB_OUTPUT
            {
              echo "updated_providers<<EOF"
              echo "$providers"
              echo "EOF"
            } >> $GITHUB_OUTPUT
          fi

      - name: Create Pull Request
        if: steps.changes.outputs.has_changes == 'true'
        uses: peter-evans/create-pull-request@v8
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          branch: chore/ai-codegen-update
          delete-branch: true
          title: "chore: update AI codegen generated files"
          body: |
            Automated update of AI provider generated code.

            ## Updated Providers

            ${{ steps.changes.outputs.updated_providers }}

            ---

            *This PR was automatically generated by the nightly codegen workflow.*
          commit-message: "chore: regenerate AI provider code"
          labels: automated