name: release
# Builds the signed Windows installer and the updater manifest (latest.json) for CoA Server Manager itself.
# Trigger: push a tag like v0.2.0, or run it by hand. The installer is signed with the updater key (secrets below);
# server packages are a separate pipeline in coa-server-build.
on:
  push:
    tags: ['v*']
  workflow_dispatch:
    inputs:
      publish_release:
        description: Publish the GitHub release (leave off to prepare signed artifacts)
        type: boolean
        default: false

permissions:
  contents: write

jobs:
  release-intent:
    runs-on: ubuntu-latest
    outputs:
      build: ${{ steps.intent.outputs.build }}
    steps:
      - id: intent
        name: Keep already published release assets immutable
        env:
          GH_TOKEN: ${{ github.token }}
          REQUEST_PUBLISH: ${{ inputs.publish_release && 'true' || 'false' }}
        run: |
          python3 - <<'PY'
          import json, os, subprocess
          build = True
          if os.environ['GITHUB_EVENT_NAME'] == 'push' or os.environ.get('REQUEST_PUBLISH') == 'true':
              result = subprocess.run(['gh', 'api', 'repos/' + os.environ['GITHUB_REPOSITORY'] + '/releases/tags/' + os.environ['GITHUB_REF_NAME']], capture_output=True, text=True)
              if result.returncode == 0:
                  build = json.loads(result.stdout)['draft']
                  if not build:
                      print('Published release already exists; preserve its assets and prerelease status.')
              elif 'HTTP 404' not in result.stderr:
                  raise RuntimeError('Could not establish whether this release already exists: ' + result.stderr)
          with open(os.environ['GITHUB_OUTPUT'], 'a') as output:
              output.write('build=' + str(build).lower() + '\n')
          PY
  installer:
    needs: release-intent
    if: needs.release-intent.outputs.build == 'true'
    runs-on: windows-latest
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v7
      - name: Validate release version
        shell: pwsh
        run: |
          $version = (Get-Content package.json -Raw | ConvertFrom-Json).version
          if ($env:GITHUB_EVENT_NAME -eq 'push' -and $env:GITHUB_REF_NAME -ne "v$version") {
            throw 'The release tag does not match the application version.'
          }
      - name: Cache Rust dependencies and compiled targets
        uses: actions/cache@v6
        continue-on-error: true
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: manager-installer-${{ runner.os }}-${{ hashFiles('Cargo.lock') }}-${{ github.run_id }}
          restore-keys: manager-installer-${{ runner.os }}-${{ hashFiles('Cargo.lock') }}-
      - uses: actions/setup-node@v4
        with:
          node-version: 22
      - run: npm ci
      # tauri::generate_context! needs ../dist; without a warm target cache the tests do not compile without it.
      - run: npm run build
      - name: Tests
        run: cargo test --workspace --locked -- --test-threads=1
      - run: node --experimental-strip-types --test tools/*.test.mjs
      - run: python -B -m unittest discover -s tools -p test_launcher_bridge.py
      - name: Build and sign (publish only when requested)
        id: tauri
        uses: tauri-apps/tauri-action@v0
        env:
          GITHUB_TOKEN: ${{ (github.event_name == 'push' || inputs.publish_release) && github.token || '' }}
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
        with:
          tagName: ${{ (github.event_name == 'push' || inputs.publish_release) && 'v__VERSION__' || '' }}
          releaseName: CoA Server Manager v__VERSION__
          releaseBody: See the assets to download the installer. Existing installations update themselves.
          releaseDraft: false
          prerelease: false
          args: --bundles nsis
          includeUpdaterJson: true
      - name: Preserve the exact signed installer and updater metadata
        shell: pwsh
        env:
          MANAGER_ARTIFACTS: ${{ steps.tauri.outputs.artifactPaths }}
        run: |
          $paths = @($env:MANAGER_ARTIFACTS | ConvertFrom-Json)
          $installers = @($paths | Where-Object { $_ -like '*-setup.exe' })
          if ($installers.Count -ne 1) { throw 'Expected exactly one Windows NSIS installer.' }
          $installer = [IO.Path]::GetFullPath($installers[0])
          $workspace = [IO.Path]::GetFullPath((Get-Location).Path).TrimEnd('\') + '\'
          if (-not $installer.StartsWith($workspace, [StringComparison]::OrdinalIgnoreCase)) { throw 'Installer escaped the workspace.' }
          if (-not (Test-Path -LiteralPath "$installer.sig")) { throw 'The installer has no updater signature.' }
          $version = (Get-Content package.json -Raw | ConvertFrom-Json).version
          $name = [IO.Path]::GetFileName($installer).Replace(' ', '.')
          New-Item -ItemType Directory -Force _prepared-manager | Out-Null
          Copy-Item -LiteralPath $installer -Destination "_prepared-manager/$name"
          Copy-Item -LiteralPath "$installer.sig" -Destination "_prepared-manager/$name.sig"
          $platform = @{
            signature = (Get-Content -LiteralPath "$installer.sig" -Raw).Trim()
            url = "https://github.com/$env:GITHUB_REPOSITORY/releases/download/v$version/$([Uri]::EscapeDataString($name))"
          }
          @{ version = $version; notes = 'See the release notes.'; pub_date = [DateTime]::UtcNow.ToString('yyyy-MM-ddTHH:mm:ssZ'); platforms = @{ 'windows-x86_64' = $platform } } |
            ConvertTo-Json -Depth 8 | Set-Content _prepared-manager/latest.json -Encoding utf8NoBOM
          @{ schema = 1; version = $version; source = $env:GITHUB_SHA; run = $env:GITHUB_RUN_ID; installer = $name; sha256 = (Get-FileHash -LiteralPath $installer -Algorithm SHA256).Hash.ToLowerInvariant() } |
            ConvertTo-Json | Set-Content _prepared-manager/prepared-source.json -Encoding utf8NoBOM
      - uses: actions/upload-artifact@v4
        with:
          name: prepared-manager-windows
          path: _prepared-manager/*
          if-no-files-found: error
          retention-days: 14