name: 'Promote Release'

on:
  workflow_dispatch:
    inputs:
      dry_run:
        description: 'Run a dry-run of the release process; no branches, npm packages or GitHub releases will be created.'
        required: true
        type: 'boolean'
        default: true

jobs:
  calculate-versions:
    name: 'Calculate Versions and Plan'
    runs-on: 'ubuntu-latest'
    outputs:
      STABLE_VERSION: '${{ steps.versions.outputs.STABLE_VERSION }}'
      STABLE_SHA: '${{ steps.versions.outputs.STABLE_SHA }}'
      PREVIOUS_STABLE_TAG: '${{ steps.versions.outputs.PREVIOUS_STABLE_TAG }}'
      PREVIEW_VERSION: '${{ steps.versions.outputs.PREVIEW_VERSION }}'
      PREVIEW_SHA: '${{ steps.versions.outputs.PREVIEW_SHA }}'
      PREVIOUS_PREVIEW_TAG: '${{ steps.versions.outputs.PREVIOUS_PREVIEW_TAG }}'
      NEXT_NIGHTLY_VERSION: '${{ steps.versions.outputs.NEXT_NIGHTLY_VERSION }}'

    steps:
      - name: 'Checkout'
        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
        with:
          fetch-depth: 0

      - name: 'Setup Node.js'
        uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020'
        with:
          node-version-file: '.nvmrc'
          cache: 'npm'

      - name: 'Install Dependencies'
        run: 'npm ci'

      - name: 'Calculate Versions and SHAs'
        id: 'versions'
        env:
          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
        run: |
          set -e
          STABLE_JSON=$(node scripts/get-release-version.js --type=stable)
          PREVIEW_JSON=$(node scripts/get-release-version.js --type=preview)
          NIGHTLY_JSON=$(node scripts/get-release-version.js --type=nightly)
          echo "STABLE_VERSION=$(echo "${STABLE_JSON}" | jq -r .releaseVersion)" >> "${GITHUB_OUTPUT}"
          # shellcheck disable=SC1083
          echo "STABLE_SHA=$(git rev-parse "$(echo "${STABLE_JSON}" | jq -r .previousReleaseTag)"^{commit})" >> "${GITHUB_OUTPUT}"
          echo "PREVIOUS_STABLE_TAG=$(echo "${STABLE_JSON}" | jq -r .previousReleaseTag)" >> "${GITHUB_OUTPUT}"
          echo "PREVIEW_VERSION=$(echo "${PREVIEW_JSON}" | jq -r .releaseVersion)" >> "${GITHUB_OUTPUT}"
          # shellcheck disable=SC1083
          echo "PREVIEW_SHA=$(git rev-parse "$(echo "${PREVIEW_JSON}" | jq -r .previousReleaseTag)"^{commit})" >> "${GITHUB_OUTPUT}"
          echo "PREVIOUS_PREVIEW_TAG=$(echo "${PREVIEW_JSON}" | jq -r .previousReleaseTag)" >> "${GITHUB_OUTPUT}"
          echo "NEXT_NIGHTLY_VERSION=$(echo "${NIGHTLY_JSON}" | jq -r .releaseVersion)" >> "${GITHUB_OUTPUT}"

  promote:
    name: 'Promote to ${{ matrix.channel }}'
    needs: 'calculate-versions'
    runs-on: 'ubuntu-latest'
    permissions:
      contents: 'write'
      packages: 'write'
    strategy:
      matrix:
        include:
          - channel: 'stable'
            version: '${{ needs.calculate-versions.outputs.STABLE_VERSION }}'
            sha: '${{ needs.calculate-versions.outputs.STABLE_SHA }}'
            npm-tag: 'latest'
            previous-tag: '${{ needs.calculate-versions.outputs.PREVIOUS_STABLE_TAG }}'
          - channel: 'preview'
            version: '${{ needs.calculate-versions.outputs.PREVIEW_VERSION }}'
            sha: '${{ needs.calculate-versions.outputs.PREVIEW_SHA }}'
            npm-tag: 'preview'
            previous-tag: '${{ needs.calculate-versions.outputs.PREVIOUS_PREVIEW_TAG }}'

    steps:
      - name: 'Checkout main'
        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
        with:
          ref: 'main'

      - name: 'Checkout correct SHA'
        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
        with:
          ref: '${{ matrix.sha }}'
          path: 'release'

      - name: 'Setup Node.js'
        uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020'
        with:
          node-version-file: '.nvmrc'
          cache: 'npm'

      - name: 'Install Dependencies'
        working-directory: './release'
        run: 'npm ci'

      - name: 'Configure Git User'
        working-directory: './release'
        run: |-
          git config user.name "gemini-cli-robot"
          git config user.email "gemini-cli-robot@google.com"

      - name: 'Create and switch to a release branch'
        working-directory: './release'
        id: 'release_branch'
        run: |
          BRANCH_NAME="release/v${{ matrix.version }}"
          git switch -c "${BRANCH_NAME}"
          echo "BRANCH_NAME=${BRANCH_NAME}" >> "${GITHUB_OUTPUT}"

      - name: 'Update package versions'
        working-directory: './release'
        run: 'npm run release:version "${{ matrix.version }}"'

      - name: 'Commit and Conditionally Push package versions'
        working-directory: './release'
        env:
          BRANCH_NAME: '${{ steps.release_branch.outputs.BRANCH_NAME }}'
          DRY_RUN: '${{ github.event.inputs.dry_run }}'
          RELEASE_TAG: 'v${{ matrix.version }}'
        run: |-
          git add package.json package-lock.json packages/*/package.json
          git commit -m "chore(release): ${RELEASE_TAG}"
          if [[ "${DRY_RUN}" == "false" ]]; then
            echo "Pushing release branch to remote..."
            git push --set-upstream origin "${BRANCH_NAME}" --follow-tags
          else
            echo "Dry run enabled. Skipping push."
          fi

      - name: 'Publish Release'
        uses: './.github/actions/publish-release'
        with:
          release-version: '${{ matrix.version }}'
          npm-tag: '${{ matrix.npm-tag }}'
          wombat-token-core: '${{ secrets.WOMBAT_TOKEN_CORE }}'
          wombat-token-cli: '${{ secrets.WOMBAT_TOKEN_CLI }}'
          github-token: '${{ secrets.GITHUB_TOKEN }}'
          dry-run: '${{ github.event.inputs.dry_run }}'
          release-branch: '${{ steps.release_branch.outputs.BRANCH_NAME }}'
          previous-tag: '${{ matrix.previous-tag }}'
          working-directory: './release'

  nightly-pr:
    name: 'Create Nightly PR'
    needs: 'calculate-versions'
    runs-on: 'ubuntu-latest'
    permissions:
      contents: 'write'
      pull-requests: 'write'
    steps:
      - name: 'Checkout main'
        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
        with:
          ref: 'main'

      - name: 'Setup Node.js'
        uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020'
        with:
          node-version-file: '.nvmrc'
          cache: 'npm'

      - name: 'Install Dependencies'
        run: 'npm ci'

      - name: 'Configure Git User'
        run: |-
          git config user.name "gemini-cli-robot"
          git config user.email "gemini-cli-robot@google.com"

      - name: 'Create and switch to a new branch'
        id: 'release_branch'
        run: |
          BRANCH_NAME="chore/nightly-version-bump-${{ needs.calculate-versions.outputs.NEXT_NIGHTLY_VERSION }}"
          git switch -c "${BRANCH_NAME}"
          echo "BRANCH_NAME=${BRANCH_NAME}" >> "${GITHUB_OUTPUT}"

      - name: 'Update package versions'
        run: 'npm run release:version "${{ needs.calculate-versions.outputs.NEXT_NIGHTLY_VERSION }}"'

      - name: 'Commit and Push package versions'
        env:
          BRANCH_NAME: '${{ steps.release_branch.outputs.BRANCH_NAME }}'
          DRY_RUN: '${{ github.event.inputs.dry_run }}'
        run: |-
          git add package.json package-lock.json packages/*/package.json
          git commit -m "chore(release): bump version to ${{ needs.calculate-versions.outputs.NEXT_NIGHTLY_VERSION }}"
          if [[ "${DRY_RUN}" == "false" ]]; then
            echo "Pushing release branch to remote..."
            git push --set-upstream origin "${BRANCH_NAME}"
          else
            echo "Dry run enabled. Skipping push."
          fi

      - name: 'Create and Approve Pull Request'
        if: |-
          ${{ github.event.inputs.dry_run == 'false' }}
        env:
          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
          BRANCH_NAME: '${{ steps.release_branch.outputs.BRANCH_NAME }}'
        run: |
          gh pr create \
            --title "chore(release): bump version to ${{ needs.calculate-versions.outputs.NEXT_NIGHTLY_VERSION }}" \
            --body "Automated version bump to prepare for the next nightly release." \
            --base "main" \
            --head "${BRANCH_NAME}" \
            --fill
          gh pr merge --auto --squash