# Description: Manual workflow to increment package version with semantic versioning support
name: "Release: Version Bump"

on:
  workflow_dispatch:
    inputs:
      version_type:
        description: 'Version increment type'
        required: true
        default: 'patch'
        type: 'choice'
        options: [patch, minor, major, prepatch, preminor, premajor, prerelease]
      pre_release:
        description: Pre-release ID (suffix)
        required: false
        default: ''
        type: string
      branch:
        description: 'Base branch to bump (e.g., main, core/1.29, core/1.30)'
        required: true
        default: 'main'
        type: string
  schedule:
    # 00:00 UTC ≈ 4:00 PM PST / 5:00 PM PDT on the previous calendar day
    - cron: '0 0 * * *'

concurrency:
  group: release-version-bump
  cancel-in-progress: true

jobs:
  bump-version:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Prepare inputs
        id: prepared-inputs
        shell: bash
        env:
          RAW_VERSION_TYPE: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.version_type || '' }}
          RAW_PRE_RELEASE: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.pre_release || '' }}
          RAW_BRANCH: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.branch || '' }}
        run: |
          set -euo pipefail
          VERSION_TYPE="$RAW_VERSION_TYPE"
          PRE_RELEASE="$RAW_PRE_RELEASE"
          TARGET_BRANCH="$RAW_BRANCH"

          if [[ -z "$VERSION_TYPE" ]]; then
            VERSION_TYPE='patch'
          fi

          if [[ -z "$TARGET_BRANCH" ]]; then
            TARGET_BRANCH='main'
          fi

          {
            echo "version_type=$VERSION_TYPE"
            echo "pre_release=$PRE_RELEASE"
            echo "branch=$TARGET_BRANCH"
          } >> "$GITHUB_OUTPUT"

      - name: Close stale nightly version bump PRs
        if: github.event_name == 'schedule'
        uses: actions/github-script@v7
        with:
          github-token: ${{ github.token }}
          script: |
            const prefix = 'version-bump-'
            const closed = []
            const prs = await github.paginate(github.rest.pulls.list, {
              owner: context.repo.owner,
              repo: context.repo.repo,
              state: 'open',
              per_page: 100
            })

            for (const pr of prs) {
              if (!pr.head?.ref?.startsWith(prefix)) {
                continue
              }

              if (pr.user?.login !== 'github-actions[bot]') {
                continue
              }

              // Only clean up stale nightly PRs targeting main.
              // Adjust here if other target branches should be cleaned.
              if (pr.base?.ref !== 'main') {
                continue
              }

              await github.rest.pulls.update({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: pr.number,
                state: 'closed'
              })

              try {
                await github.rest.git.deleteRef({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  ref: `heads/${pr.head.ref}`
                })
              } catch (error) {
                if (![404, 422].includes(error.status)) {
                  throw error
                }
              }

              closed.push(pr.number)
            }

            core.info(`Closed ${closed.length} stale PR(s).`)

      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          ref: ${{ steps.prepared-inputs.outputs.branch }}
          fetch-depth: 0
          persist-credentials: false

      - name: Validate branch exists
        env:
          TARGET_BRANCH: ${{ steps.prepared-inputs.outputs.branch }}
        run: |
          BRANCH="$TARGET_BRANCH"
          if ! git show-ref --verify --quiet "refs/heads/$BRANCH" && ! git show-ref --verify --quiet "refs/remotes/origin/$BRANCH"; then
            echo "❌ Branch '$BRANCH' does not exist"
            echo ""
            echo "Available core branches:"
            git branch -r | grep 'origin/core/' | sed 's/.*origin\//  - /' || echo "  (none found)"
            echo ""
            echo "Main branch:"
            echo "  - main"
            exit 1
          fi
          echo "✅ Branch '$BRANCH' exists"

      - name: Install pnpm
        uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061
        with:
          version: 10

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: lts/*

      - name: Bump version
        id: bump-version
        env:
          VERSION_TYPE: ${{ steps.prepared-inputs.outputs.version_type }}
          PRE_RELEASE: ${{ steps.prepared-inputs.outputs.pre_release }}
        run: |
          set -euo pipefail
          if [[ -n "$PRE_RELEASE" && ! "$VERSION_TYPE" =~ ^pre(major|minor|patch)$ && "$VERSION_TYPE" != "prerelease" ]]; then
            echo "❌ pre_release was provided but version_type='$VERSION_TYPE' does not support --preid"
            exit 1
          fi
          if [[ -n "$PRE_RELEASE" ]]; then
            pnpm version "$VERSION_TYPE" --preid "$PRE_RELEASE" --no-git-tag-version
          else
            pnpm version "$VERSION_TYPE" --no-git-tag-version
          fi

          NEW_VERSION=$(node -p "require('./package.json').version")
          echo "NEW_VERSION=$NEW_VERSION" >> "$GITHUB_OUTPUT"

      - name: Format PR string
        id: capitalised
        env:
          VERSION_TYPE: ${{ steps.prepared-inputs.outputs.version_type }}
        run: |
          CAPITALISED_TYPE="$VERSION_TYPE"
          echo "capitalised=${CAPITALISED_TYPE@u}" >> "$GITHUB_OUTPUT"

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e
        with:
          token: ${{ secrets.PR_GH_TOKEN }}
          commit-message: '[release] Increment version to ${{ steps.bump-version.outputs.NEW_VERSION }}'
          title: ${{ steps.bump-version.outputs.NEW_VERSION }}
          body: |
            ${{ steps.capitalised.outputs.capitalised }} version increment to ${{ steps.bump-version.outputs.NEW_VERSION }}

            **Base branch:** `${{ steps.prepared-inputs.outputs.branch }}`
          branch: version-bump-${{ steps.bump-version.outputs.NEW_VERSION }}
          base: ${{ steps.prepared-inputs.outputs.branch }}
          labels: |
            Release