name: ForgeFlow signed release

on:
  push:
    branches: [main]
    paths:
      - package.json
  workflow_dispatch:

permissions:
  code: read
  releases: write

jobs:
  release:
    runs-on: windows-native
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2
      - uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: npm
      - name: Build, sign and publish version bump
        shell: powershell
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
          FORGEFLOW_RELEASE_BASE_URL: ${{ gitea.server_url }}
          FORGEFLOW_RELEASE_OWNER: Jens
          FORGEFLOW_RELEASE_REPO: ForgeFlow
          FORGEFLOW_RELEASE_BRANCH: main
          FORGEFLOW_RELEASE_SIGNING_KEY_PEM: ${{ secrets.FORGEFLOW_RELEASE_SIGNING_KEY_PEM }}
        run: |
          $ErrorActionPreference = "Stop"
          Set-StrictMode -Version Latest

          $manifest = Get-Content -LiteralPath "package.json" -Raw | ConvertFrom-Json
          $version = [string]$manifest.version
          $previousVersion = ""
          try {
            $previousJson = (& git show "HEAD^:package.json" 2>$null | Out-String)
            if ($LASTEXITCODE -eq 0 -and $previousJson.Trim()) {
              $previousVersion = [string](ConvertFrom-Json $previousJson).version
            }
          } catch {
            $previousVersion = ""
          }

          if ($env:GITEA_EVENT_NAME -eq "push" -and $previousVersion -eq $version) {
            Write-Host "package.json changed without a version bump ($version); no release will be published."
            exit 0
          }
          if ($version -notmatch '^\d+\.\d+\.\d+$') {
            throw "ForgeFlow version '$version' is not a stable semantic version."
          }

          if ($env:FORGEFLOW_RELEASE_SIGNING_KEY_PEM) {
            $privateKeyPath = Join-Path $env:RUNNER_TEMP "forgeflow-release-signing-private.pem"
            $utf8NoBom = New-Object System.Text.UTF8Encoding($false)
            [System.IO.File]::WriteAllText($privateKeyPath, $env:FORGEFLOW_RELEASE_SIGNING_KEY_PEM, $utf8NoBom)
            $env:FORGEFLOW_UPDATE_SIGNING_PRIVATE_KEY = $privateKeyPath
          }

          $effectiveKeyPath = if ($env:FORGEFLOW_UPDATE_SIGNING_PRIVATE_KEY) {
            $env:FORGEFLOW_UPDATE_SIGNING_PRIVATE_KEY
          } else {
            Join-Path $env:APPDATA "forgeflow\release-signing-private.pem"
          }
          if (-not (Test-Path -LiteralPath $effectiveKeyPath)) {
            throw "ForgeFlow release signing key is not provisioned for the windows-native runner. Provision the existing Ed25519 private key as FORGEFLOW_RELEASE_SIGNING_KEY_PEM or at $effectiveKeyPath."
          }
          if (-not $env:GITEA_TOKEN) {
            throw "Gitea Actions did not provide GITEA_TOKEN to the release job."
          }

          & cmd.exe /d /s /c "npm ci --no-audit --no-fund"
          if ($LASTEXITCODE -ne 0) { throw "npm ci failed." }
          & cmd.exe /d /s /c "npx electron --version"
          if ($LASTEXITCODE -ne 0) { throw "Electron preflight failed." }
          & cmd.exe /d /s /c "npm run check"
          if ($LASTEXITCODE -ne 0) { throw "ForgeFlow release quality gate failed." }
          & cmd.exe /d /s /c "npm run dist:win"
          if ($LASTEXITCODE -ne 0) { throw "ForgeFlow Windows build/signing failed." }
          & cmd.exe /d /s /c "npm run release:binary"
          if ($LASTEXITCODE -ne 0) { throw "ForgeFlow Gitea release publication failed." }

          Write-Host "ForgeFlow $version was built, signed and published from exact main HEAD $env:GITEA_SHA."