name: Generate code

permissions:
  contents: write
  pull-requests: write

on:
  repository_dispatch:
    types: [generate]
  workflow_dispatch:
    inputs:
      openapi_url:
        description: "OpenAPI URL that should be used"
        required: true
        type: string

jobs:
  generate:
    runs-on: ubuntu-latest
    steps:
      - name: Inputs handling
        run: |
          if [ "${{ github.event_name }}" == "repository_dispatch" ]; then
            if [ -z "${{ github.event.client_payload.openapi_url }}" ]; then
              echo "Error: 'openapi_url' is missing in client_payload."
              exit 1
            fi
          
            echo "OPENAPI_URL=${{ github.event.client_payload.openapi_url }}" >> $GITHUB_ENV
          else
            echo "OPENAPI_URL=${{ github.event.inputs.openapi_url }}" >> $GITHUB_ENV
          fi

      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-node@v4
        with:
          node-version: 20

      - name: Install OpenAPI Generator
        run: npm install @openapitools/openapi-generator-cli -g

      - name: Download OpenAPI spec
        run: wget $OPENAPI_URL  -O codex.yaml

      - name: Run generation
        run: |
          LATEST_VERSION=$(git describe --tags `git rev-list --tags --max-count=1`)
          ./generate.sh $LATEST_VERSION

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v7
        with:
          branch: generator
          delete-branch: 'true'
          title: 'Generated API update'
          body: 'Update of the client library using OpenAPI from: ${{ env.OPENAPI_URL }}'
          commit-message: 'Generated API update'