# Desktop packages (design § "桌面端原型 · 打包与更新", milestone M3).
#
# Reusable three-OS matrix: stage the pnpm-deploy app tree, run electron-builder, and
# upload the installers as workflow artifacts named desktop-<OS>. release.yml calls this
# BEFORE creating the Release — assets are immutable once published, so the desktop
# installers must exist at creation time. workflow_dispatch runs it standalone as a dry
# run on any branch.
#
# M3 ships unsigned artifacts; macOS signing/notarization, Windows code signing and
# electron-updater are milestone M4.
name: Desktop packages

on:
  workflow_call:
    inputs:
      tag:
        description: Release tag (vX.Y.Z) stamped into the app; empty keeps dev versions.
        required: false
        type: string
        default: ""
  workflow_dispatch: {}

env:
  # Keep in sync with release.yml (its header comment is the source of truth; duplicated
  # here because reusable workflows do not inherit the caller's env).
  MINGIT_VERSION: 2.55.0.3
  MINGIT_TAG: v2.55.0.windows.3

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            args: --linux
          - os: macos-latest
            args: --mac
          - os: windows-latest
            args: --win
    runs-on: ${{ matrix.os }}
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v5

      # pnpm version comes from package.json's packageManager field.
      - uses: pnpm/action-setup@v6

      - uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: pnpm

      # Stamp the release version the same way release.yml stamps the CLI artifacts —
      # core's VERSION/BUILD_DATE constants (what the app and server report) plus the
      # desktop package.json electron-builder reads its installer metadata from;
      # otherwise every installer carries the in-repo dev version (v0.2.1 shipped
      # Windows metadata saying 0.2.0 this way). node instead of sed -i: this matrix
      # includes macOS, whose BSD sed spells in-place editing differently. Dry runs
      # (no tag) keep the dev versions.
      - name: Stamp release version
        if: inputs.tag != ''
        shell: bash
        env:
          TAG: ${{ inputs.tag }}
        run: |
          V="${TAG#v}"
          D="$(date -u +%Y-%m-%d)"
          V="$V" D="$D" node -e '
            const fs = require("fs");
            const p = "packages/core/src/index.ts";
            let s = fs.readFileSync(p, "utf8");
            if (!/export const VERSION = "/.test(s)) throw new Error("VERSION const not found");
            s = s.replace(/export const VERSION = "[^"]*"/, `export const VERSION = "${process.env.V}"`);
            if (!/export const BUILD_DATE: string \| null = /.test(s)) throw new Error("BUILD_DATE const not found");
            s = s.replace(/export const BUILD_DATE: string \| null = [^;]*/, `export const BUILD_DATE: string | null = "${process.env.D}"`);
            fs.writeFileSync(p, s);
          '
          (cd packages/desktop && npm version --no-git-tag-version --allow-same-version "$V")

      - run: pnpm install --frozen-lockfile

      - run: pnpm -r build

      - name: Stage the app directory
        run: node packages/desktop/scripts/stage.mjs

      # Windows carries MinGit under resources/git so the packaged agent shell has the
      # same deterministic POSIX bash as the npm package (release.yml bundles the
      # identical MinGit into the CLI win-x64 zip; the shell advertises it as
      # PENGUIN_BUNDLED_SHELL).
      - name: Bundle MinGit (Windows)
        if: runner.os == 'Windows'
        shell: bash
        run: |
          mingit="MinGit-$MINGIT_VERSION-64-bit.zip"
          curl -fsSL -o "$mingit" \
            "https://github.com/git-for-windows/git/releases/download/$MINGIT_TAG/$mingit"
          unzip -q "$mingit" -d packages/desktop/stage/minigit

      - name: Build packages
        run: pnpm --dir packages/desktop exec electron-builder ${{ matrix.args }}

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: desktop-${{ runner.os }}
          if-no-files-found: error
          path: |
            packages/desktop/stage/out/penguin-desktop-*.AppImage
            packages/desktop/stage/out/penguin-desktop-*.deb
            packages/desktop/stage/out/penguin-desktop-*.dmg
            packages/desktop/stage/out/penguin-desktop-*.zip
            packages/desktop/stage/out/penguin-desktop-*.exe