nightly.yml

name: Nightly Build

on:
  schedule:
    # Weekdays at 02:00 UTC
    - cron: "0 2 * * 1-5"
  workflow_dispatch:

permissions:
  contents: write

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

env:
  NIGHTLY_TAG: nightly

jobs:
  # ── Check if there are new commits since last nightly ──────────────
  check-changes:
    name: Check for Changes
    runs-on: ubuntu-latest
    outputs:
      should_build: ${{ steps.check.outputs.should_build }}
      nightly_version: ${{ steps.check.outputs.nightly_version }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check for recent changes
        id: check
        shell: bash
        run: |
          set -euo pipefail

          BASE_VERSION="$(jq -r '.version' package.json)"
          DATE_SUFFIX="$(date -u '+%Y%m%d')"
          SHORT_SHA="$(git rev-parse --short HEAD)"
          NIGHTLY_VERSION="${BASE_VERSION}-nightly.${DATE_SUFFIX}+${SHORT_SHA}"

          echo "nightly_version=$NIGHTLY_VERSION" >> "$GITHUB_OUTPUT"

          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            echo "should_build=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          # Check if any commits landed in the last 25 hours
          LAST_COMMIT_TIME="$(git log -1 --format='%ct')"
          NOW="$(date -u '+%s')"
          HOURS_AGO=$(( (NOW - LAST_COMMIT_TIME) / 3600 ))

          if [[ "$HOURS_AGO" -lt 25 ]]; then
            echo "should_build=true" >> "$GITHUB_OUTPUT"
          else
            echo "No new commits in the last 25 hours, skipping nightly build."
            echo "should_build=false" >> "$GITHUB_OUTPUT"
          fi

  # ── Patch version for nightly ──────────────────────────────────────
  package:
    name: Package (${{ matrix.platform.name }})
    runs-on: ${{ matrix.platform.os }}
    needs: check-changes
    if: needs.check-changes.outputs.should_build == 'true'
    env:
      NODE_OPTIONS: --max-old-space-size=6144

    strategy:
      fail-fast: false
      matrix:
        platform:
          - os: macos-15
            name: macos-arm64
            target: aarch64-apple-darwin
            build_command: cd src/apps/desktop && npm exec -- tauri build --target aarch64-apple-darwin --bundles dmg
          - os: macos-15-intel
            name: macos-x64
            target: x86_64-apple-darwin
            build_command: npm run desktop:build:x86_64
          - os: windows-latest
            name: windows-x64
            target: x86_64-pc-windows-msvc
            build_command: npm run desktop:build:nsis

    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: npm

      - name: Setup Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.platform.target }}

      - name: Cache Rust build
        uses: swatinem/rust-cache@v2
        with:
          shared-key: "nightly-${{ matrix.platform.name }}"

      - name: Install dependencies
        run: npm ci

      - name: Patch nightly version
        shell: bash
        env:
          NIGHTLY_VERSION: ${{ needs.check-changes.outputs.nightly_version }}
        run: |
          set -euo pipefail

          echo "Patching version to $NIGHTLY_VERSION"

          # Patch package.json
          node -e "
            const fs = require('fs');
            const pkg = JSON.parse(fs.readFileSync('package.json', 'utf-8'));
            pkg.version = process.env.NIGHTLY_VERSION.split('+')[0];
            fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2) + '\n');
          "

          # Patch Cargo workspace version (semver: nightly suffix uses hyphen)
          # Cargo.toml only accepts: MAJOR.MINOR.PATCH or MAJOR.MINOR.PATCH-PRE
          CARGO_VERSION="$(echo "$NIGHTLY_VERSION" | sed 's/+.*//')"
          sed -i.bak "s/^version = \".*\" # x-release-please-version/version = \"${CARGO_VERSION}\" # x-release-please-version/" Cargo.toml
          rm -f Cargo.toml.bak

          echo "package.json version: $(jq -r '.version' package.json)"
          echo "Cargo.toml version:   $(grep 'x-release-please-version' Cargo.toml)"

      - name: Build desktop app
        run: ${{ matrix.platform.build_command }}

      - name: Upload bundles
        uses: actions/upload-artifact@v4
        with:
          name: bitfun-nightly-${{ matrix.platform.name }}-bundle
          if-no-files-found: error
          retention-days: 7
          path: |
            target/*/release/bundle
            target/release/bundle
            src/apps/desktop/target/release/bundle

  # ── Publish nightly pre-release ────────────────────────────────────
  publish-nightly:
    name: Publish Nightly
    needs: [check-changes, package]
    if: needs.check-changes.outputs.should_build == 'true'
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Download bundled artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: bitfun-nightly-*-bundle
          path: release-assets
          merge-multiple: true

      - name: List release assets
        run: |
          echo "Nightly assets:"
          find release-assets -type f | sort

      - name: Delete previous nightly release
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release delete "${{ env.NIGHTLY_TAG }}" --yes --cleanup-tag 2>/dev/null || true

      - name: Create nightly release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ env.NIGHTLY_TAG }}
          name: "Nightly Build (${{ needs.check-changes.outputs.nightly_version }})"
          body: |
            Automated nightly build from `main` branch.

            **Version**: `${{ needs.check-changes.outputs.nightly_version }}`
            **Commit**: ${{ github.sha }}
            **Date**: ${{ github.event.head_commit.timestamp || github.event.repository.updated_at }}

            > **Warning**: Nightly builds are untested and may be unstable.
          prerelease: true
          files: |
            release-assets/**/*.dmg
            release-assets/**/*setup.exe