name: GitHub Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      tag:
        description: '要发布 Release 的标签（如 v1.0.1）'
        required: true
        type: string

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          ref: ${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.ref }}

      - name: Setup Node
        uses: actions/setup-node@v6
        with:
          node-version: 22
          cache: npm

      - name: Install npm 11
        run: npm install -g npm@11.12.1

      - name: Install dependencies
        run: npm ci

      - name: Extract release notes from CHANGELOG
        id: notes
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            TAG="${{ inputs.tag }}"
          else
            TAG="${GITHUB_REF#refs/tags/}"
          fi
          VERSION="${TAG#v}"
          BODY_FILE="${RUNNER_TEMP}/release-notes.md"
          awk -v ver="$VERSION" '
            /^## \[/ {
              if (found) exit
              if ($0 ~ "\\[" ver "\\]") found = 1
              next
            }
            found { print }
          ' CHANGELOG.md > "$BODY_FILE"
          if [ ! -s "$BODY_FILE" ]; then
            echo "未在 CHANGELOG.md 找到版本 ${VERSION}，使用自动生成说明。" >&2
            echo "## PicHost ${TAG}" > "$BODY_FILE"
          fi
          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
          echo "body_path=${BODY_FILE}" >> "$GITHUB_OUTPUT"

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.notes.outputs.tag }}
          name: PicHost ${{ steps.notes.outputs.tag }}
          body_path: ${{ steps.notes.outputs.body_path }}
          draft: false
          prerelease: false
          make_latest: true