name: On Push to Main Branch

on:
  push:
    branches:
      - main

concurrency:
  group: deployment
  cancel-in-progress: true

jobs:
  check-version:
    runs-on: ubuntu-latest
    needs: check-changesets
    outputs:
      version_changed: ${{ steps.version-check.outputs.changed }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Check if version changed
        id: version-check
        run: |
          current_version=$(jq -r .version package.json)
          base_version=$(git show HEAD^:package.json | jq -r .version)
          if [ "$current_version" != "$base_version" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          else
            echo "changed=false" >> $GITHUB_OUTPUT
          fi

  check-changesets:
    runs-on: ubuntu-latest
    outputs:
      hasChangesets: ${{ steps.changeset-check.outputs.hasChangesets }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Check for changesets
        id: changeset-check
        run: |
          if [ -n "$(ls .changeset/*.md 2>/dev/null | grep -v 'README.md' | grep -v 'config.json')" ]; then
            echo "hasChangesets=true" >> $GITHUB_OUTPUT
          else
            echo "hasChangesets=false" >> $GITHUB_OUTPUT
          fi

  create-release-pr:
    name: Create or update Release PR
    runs-on: ubuntu-latest
    needs: [check-version, check-changesets]
    if: needs.check-changesets.outputs.hasChangesets == 'true' && needs.check-version.outputs.version_changed == 'false'
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Install pnpm
        run: npm install -g pnpm
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Get next version from changesets
        id: get-next-version
        run: |
          npx changeset status --output changeset-status.json
          version=$(jq -r '.releases[0].newVersion' changeset-status.json)
          echo "next_version=$version" >> $GITHUB_OUTPUT
      - name: Create or update Release PR
        uses: changesets/action@v1
        with:
          publish: false
          title: "Release v${{ steps.get-next-version.outputs.next_version }}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Update MCP version
        run: .github/scripts/update-mcp-version.sh
        env:
          PATH_TO_FILE: 'src/index.ts'

  gh-release:
    name: GH Release
    runs-on: ubuntu-latest
    needs: check-version
    if: needs.check-version.outputs.version_changed == 'true'
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4
      - name: Get release version
        id: get-version
        run: |
          echo "result=$(jq -r '.version' package.json)" >> $GITHUB_OUTPUT
      - name: Get release body
        run: |
          # Get the PR body to use in the GH release body
          gh pr list --search "$(git rev-parse HEAD)" --state merged --json number,body --jq '"This release was merged in PR #" + (.[0].number | tostring) + "\n\n" + (.[0].body | split("# Releases")[1:] | join("# Releases"))' > pr_body.tmp
      - name: Create release
        uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v2.2.1
        with:
          tag_name: v${{ steps.get-version.outputs.result }}
          name: Release v${{ steps.get-version.outputs.result }}
          body_path: pr_body.tmp

  npm-publish:
    name: Publish to npm registry
    runs-on: ubuntu-latest
    needs: check-version
    if: needs.check-version.outputs.version_changed == 'true'
    permissions:
      contents: read
      id-token: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Setup Node.js and npm auth
        uses: actions/setup-node@v4
        with:
          node-version: '20.x'
          registry-url: 'https://registry.npmjs.org'
      - name: Install pnpm
        run: npm install -g pnpm
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Build
        run: pnpm build
      - name: Publish
        run: npm publish --provenance --access public
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}