name: Release CLI

on:
  workflow_dispatch:
    inputs:
      version:
        description: "Release version (e.g. 0.1.0)"
        required: true
        type: string

concurrency:
  group: release-cli
  cancel-in-progress: false

jobs:
  release:
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    defaults:
      run:
        working-directory: packages/browseros-agent/apps/cli

    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - uses: actions/setup-go@v5
        with:
          go-version-file: packages/browseros-agent/apps/cli/go.mod

      - name: Run tests
        run: go test ./... -v

      - name: Run vet
        run: go vet ./...

      - name: Save release SHA
        id: version
        run: echo "release_sha=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"
        working-directory: ${{ github.workspace }}

      - name: Generate release notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          CLI_PATH="packages/browseros-agent/apps/cli"
          CURRENT_TAG="cli/v${{ inputs.version }}"
          PREV_TAG=$(git tag -l "cli/v*" --sort=-v:refname | grep -v "^${CURRENT_TAG}$" | head -n 1)

          if [ -z "$PREV_TAG" ]; then
            echo "Initial release" > /tmp/release-notes.md
          else
            COMMITS=$(git log "$PREV_TAG"..HEAD --pretty=format:"%H" -- "$CLI_PATH")

            if [ -z "$COMMITS" ]; then
              echo "No notable changes." > /tmp/release-notes.md
            else
              echo "## What's Changed" > /tmp/release-notes.md
              echo "" >> /tmp/release-notes.md

              while IFS= read -r SHA; do
                SUBJECT=$(git log -1 --pretty=format:"%s" "$SHA")
                PR_NUM=$(gh api "/repos/${{ github.repository }}/commits/${SHA}/pulls" --jq '.[0].number // empty' 2>/dev/null)

                if [ -n "$PR_NUM" ] && ! echo "$SUBJECT" | grep -qF "(#${PR_NUM})"; then
                  echo "- ${SUBJECT} (#${PR_NUM})" >> /tmp/release-notes.md
                else
                  echo "- ${SUBJECT}" >> /tmp/release-notes.md
                fi
              done <<< "$COMMITS"
            fi
          fi
        working-directory: ${{ github.workspace }}

      - name: Create tag
        run: |
          TAG="cli/v${{ inputs.version }}"
          RELEASE_SHA="${{ steps.version.outputs.release_sha }}"
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          if git rev-parse "$TAG" >/dev/null 2>&1; then
            echo "Tag $TAG already exists, skipping"
          else
            git tag -a "$TAG" "$RELEASE_SHA" -m "browseros-cli v${{ inputs.version }}"
          fi

          if git ls-remote --tags origin "$TAG" | grep -q "$TAG"; then
            echo "Tag $TAG already on remote, skipping push"
          else
            git push origin "$TAG"
          fi
        working-directory: ${{ github.workspace }}

      - uses: goreleaser/goreleaser-action@v6
        with:
          version: "~> v2"
          args: release --clean --release-notes /tmp/release-notes.md
          workdir: packages/browseros-agent/apps/cli
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GORELEASER_CURRENT_TAG: "cli/v${{ inputs.version }}"

      - name: Update CHANGELOG.md via PR
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          VERSION="${{ inputs.version }}"
          DATE=$(date -u +"%Y-%m-%d")
          BRANCH="docs/cli-changelog-v${VERSION}"
          CHANGELOG="packages/browseros-agent/apps/cli/CHANGELOG.md"

          git checkout main

          {
            head -n 1 "$CHANGELOG"
            echo ""
            echo "## v${VERSION} (${DATE})"
            echo ""
            cat /tmp/release-notes.md
            echo ""
            tail -n +2 "$CHANGELOG"
          } > /tmp/new-changelog.md
          mv /tmp/new-changelog.md "$CHANGELOG"

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git checkout -b "$BRANCH"
          git add "$CHANGELOG"
          git commit -m "docs: update CLI changelog for v${VERSION}"
          git push origin "$BRANCH"

          gh pr create \
            --title "docs: update CLI changelog for v${VERSION}" \
            --body "Auto-generated changelog update for browseros-cli v${VERSION}." \
            --base main \
            --head "$BRANCH"

          gh pr merge "$BRANCH" --squash --auto || true
        working-directory: ${{ github.workspace }}