name: Preview Nightly

on:
  schedule:
    # GitHub Actions schedule uses UTC. 16:00 UTC = 北京时间次日 00:00
    - cron: "0 16 * * *"
  workflow_dispatch:

permissions:
  contents: write

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"

jobs:
  prepare:
    runs-on: ubuntu-latest
    outputs:
      should_build: ${{ steps.meta.outputs.should_build }}
      preview_version: ${{ steps.meta.outputs.preview_version }}
    steps:
      - name: Check out git repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: "npm"

      - name: Decide whether to build and generate preview version
        id: meta
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        shell: bash
        run: |
          set -euo pipefail

          git fetch origin main --depth=1
          COMMITS_24H="$(git rev-list --count --since='24 hours ago' origin/main)"

          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            SHOULD_BUILD=true
          elif [ "$COMMITS_24H" -gt 0 ]; then
            SHOULD_BUILD=true
          else
            SHOULD_BUILD=false
          fi

          BASE_VERSION="$(node -p "require('./package.json').version.split('-')[0]")"
          YEAR_2="$(TZ=Asia/Shanghai date +%y)"
          EXISTING_COUNT="$(gh api --paginate "repos/${GITHUB_REPOSITORY}/releases" --jq "[.[].tag_name | select(test(\"^v${BASE_VERSION}-preview[.]${YEAR_2}[.][0-9]+$\"))] | length")"
          NEXT_COUNT=$((EXISTING_COUNT + 1))
          PREVIEW_VERSION="${BASE_VERSION}-preview.${YEAR_2}.${NEXT_COUNT}"

          echo "should_build=$SHOULD_BUILD" >> "$GITHUB_OUTPUT"
          echo "preview_version=$PREVIEW_VERSION" >> "$GITHUB_OUTPUT"
          echo "Preview version: $PREVIEW_VERSION (commits in last 24h on main: $COMMITS_24H)"

  preview-mac-arm64:
    needs: prepare
    if: needs.prepare.outputs.should_build == 'true'
    runs-on: macos-14
    steps:
      - name: Check out git repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: "npm"

      - name: Install Dependencies
        run: npm install

      - name: Set preview version
        shell: bash
        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version

      - name: Build Frontend & Type Check
        run: |
          npx tsc
          npx vite build

      - name: Package and Publish macOS arm64 preview
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          CSC_IDENTITY_AUTO_DISCOVERY: "false"
        run: |
          npx electron-builder --mac dmg --arm64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview'

  preview-linux:
    needs: prepare
    if: needs.prepare.outputs.should_build == 'true'
    runs-on: ubuntu-latest
    steps:
      - name: Check out git repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: "npm"

      - name: Install Dependencies
        run: npm install

      - name: Set preview version
        shell: bash
        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version

      - name: Build Frontend & Type Check
        run: |
          npx tsc
          npx vite build

      - name: Package and Publish Linux preview
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          npx electron-builder --linux --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview'

  preview-win-x64:
    needs: prepare
    if: needs.prepare.outputs.should_build == 'true'
    runs-on: windows-latest
    steps:
      - name: Check out git repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: "npm"

      - name: Install Dependencies
        run: npm install

      - name: Set preview version
        shell: bash
        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version

      - name: Build Frontend & Type Check
        run: |
          npx tsc
          npx vite build

      - name: Package and Publish Windows x64 preview
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          npx electron-builder --win nsis --x64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview' '--config.artifactName=${productName}-${version}-x64-Setup.${ext}'

  preview-win-arm64:
    needs: prepare
    if: needs.prepare.outputs.should_build == 'true'
    runs-on: windows-latest
    steps:
      - name: Check out git repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: "npm"

      - name: Install Dependencies
        run: npm install

      - name: Set preview version
        shell: bash
        run: npm version "${{ needs.prepare.outputs.preview_version }}" --no-git-tag-version --allow-same-version

      - name: Build Frontend & Type Check
        run: |
          npx tsc
          npx vite build

      - name: Package and Publish Windows arm64 preview
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          npx electron-builder --win nsis --arm64 --publish always '--config.publish.releaseType=prerelease' '--config.publish.channel=preview-arm64' '--config.artifactName=${productName}-${version}-arm64-Setup.${ext}'

  update-preview-release-notes:
    needs:
      - prepare
      - preview-mac-arm64
      - preview-linux
      - preview-win-x64
      - preview-win-arm64
    if: needs.prepare.outputs.should_build == 'true' && always()
    runs-on: ubuntu-latest
    steps:
      - name: Update preview release notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        shell: bash
        run: |
          set -euo pipefail

          TAG="v${{ needs.prepare.outputs.preview_version }}"
          REPO="$GITHUB_REPOSITORY"
          RELEASE_PAGE="https://github.com/$REPO/releases/tag/$TAG"

          if ! gh release view "$TAG" --repo "$REPO" >/dev/null 2>&1; then
            echo "Release $TAG not found (possibly all publish jobs failed), skip notes update."
            exit 0
          fi

          ASSETS_JSON="$(gh release view "$TAG" --repo "$REPO" --json assets)"

          pick_asset() {
            local pattern="$1"
            echo "$ASSETS_JSON" | jq -r --arg p "$pattern" '[.assets[].name | select(test($p))][0] // ""'
          }

          WINDOWS_ASSET="$(pick_asset "x64.*[.]exe$")"
          if [ -z "$WINDOWS_ASSET" ]; then
            WINDOWS_ASSET="$(echo "$ASSETS_JSON" | jq -r '[.assets[].name | select(test("[.]exe$")) | select(test("arm64") | not)][0] // ""')"
          fi
          WINDOWS_ARM64_ASSET="$(pick_asset "arm64.*[.]exe$")"
          MAC_ASSET="$(pick_asset "[.]dmg$")"
          LINUX_TAR_ASSET="$(pick_asset "[.]tar[.]gz$")"
          LINUX_APPIMAGE_ASSET="$(pick_asset "[.]AppImage$")"

          build_link() {
            local name="$1"
            if [ -n "$name" ]; then
              echo "https://github.com/$REPO/releases/download/$TAG/$name"
            fi
          }

          WINDOWS_URL="$(build_link "$WINDOWS_ASSET")"
          WINDOWS_ARM64_URL="$(build_link "$WINDOWS_ARM64_ASSET")"
          MAC_URL="$(build_link "$MAC_ASSET")"
          LINUX_TAR_URL="$(build_link "$LINUX_TAR_ASSET")"
          LINUX_APPIMAGE_URL="$(build_link "$LINUX_APPIMAGE_ASSET")"

          cat > preview_release_notes.md <<EOF
          ## Preview Nightly 说明
          - 该版本为 **预览版**，用于提前体验即将发布的功能与修复。
          - 可能包含尚未完全稳定的改动，不建议长期使用

          ## 渠道信息
          - 更新通道：\`preview\`（Windows arm64 使用 \`preview-arm64\`）
          - 完整发布页：$RELEASE_PAGE

          ## 下载
          - Windows x64: ${WINDOWS_URL:-$RELEASE_PAGE}
          - Windows arm64: ${WINDOWS_ARM64_URL:-$RELEASE_PAGE}
          - macOS（Apple Silicon）: ${MAC_URL:-$RELEASE_PAGE}
          - Linux (.tar.gz): ${LINUX_TAR_URL:-$RELEASE_PAGE}
          - Linux (.AppImage): ${LINUX_APPIMAGE_URL:-$RELEASE_PAGE}

          ## 安装提示
          - macOS 若提示“无法验证开发者”，请在「系统设置 -> 隐私与安全性」中允许打开。
          - 若仍被拦截，可执行：
          - \`xattr -dr com.apple.quarantine "/Applications/WeFlow.app"\`

          > 如某个平台链接暂未生成，请前往发布页查看最新资源：$RELEASE_PAGE
          EOF

          gh release edit "$TAG" --repo "$REPO" --notes-file preview_release_notes.md