# Build the punktfunk Windows HOST as a signed Inno Setup installer and publish it to Gitea's generic
# package registry, so a Windows GPU box can install the streaming host (SYSTEM service + bundled
# SudoVDA virtual-display driver) from one signed setup.exe. Runs on the self-hosted Windows runner
# (host mode; scripts/ci/setup-windows-runner.ps1) — same MSVC/Windows-SDK/LLVM env as windows.yml.
#
# Why an installer and not MSIX (like the client): the host installs a LocalSystem SCM service that
# CreateProcessAsUserW's into the interactive session for secure-desktop capture, and bundles a
# kernel/IDD driver — neither is expressible in MSIX's sandbox. The real install logic already lives
# in `punktfunk-host service install` (crates/punktfunk-host/src/service.rs); the installer just lays
# the exe down and calls it elevated. Packaging internals: packaging/windows/README.md.
#
# Registry (public reads, unom org): https://git.unom.io/unom/-/packages  (generic group)
#
# Versioning (free-form; not MSIX's 4-part rule) — single project version:
#   vX.Y.Z tag -> X.Y.Z   (THE release; published + stable `latest/` alias + attached to the
#                          unified Gitea Release).
#   main push / dispatch -> 0.3.<run_number>  (canary; `canary/` alias; climbs by run number).
#
# Signing reuses the client's MSIX_CERT_PFX_B64 / MSIX_CERT_PASSWORD secrets (CN=unom). Without them
# an ephemeral self-signed cert is generated and its public .cer published next to the installer
# (import once to LocalMachine\TrustedPublisher). See packaging/windows/pack-host-installer.ps1.
#
# NVENC: the host builds with --features nvenc; the only link need is nvencodeapi.lib, synthesised
# from a 2-export .def with llvm-dlltool (no GPU/SDK at build time). The resulting exe is NVIDIA-only
# by design — CI never launches it, so no GPU is needed here.
name: windows-host

on:
  push:
    branches: [main]
    paths:
      - 'crates/punktfunk-host/**'
      - 'crates/punktfunk-core/**'
      - 'packaging/windows/**'
      - 'scripts/windows/host.env.example'
      - 'Cargo.lock'
      - 'Cargo.toml'
      - '.gitea/workflows/windows-host.yml'
    tags: ['v*']
  workflow_dispatch:

env:
  REGISTRY: git.unom.io
  OWNER: unom
  PKG: punktfunk-host-windows

jobs:
  package:
    runs-on: windows-amd64
    timeout-minutes: 90
    steps:
      - uses: actions/checkout@v4

      - name: Configure + version
        shell: pwsh
        run: |
          # CARGO_TARGET_DIR=C:\t dodges the MAX_PATH wall in the CMake-from-source crates (aws-lc,
          # opus) the host pulls; CARGO_WORKSPACE_DIR mirrors the client workflows. Both via GITHUB_ENV
          # (pwsh Out-File utf8 = no BOM, unlike Windows PowerShell 5.1 — keeps the first line clean).
          "CARGO_TARGET_DIR=C:\t" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          "CARGO_WORKSPACE_DIR=$env:GITHUB_WORKSPACE" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          $v = if ($env:GITHUB_REF -like 'refs/tags/v*') {
            $env:GITHUB_REF_NAME -replace '^v', ''
          } else {
            "0.3.$($env:GITHUB_RUN_NUMBER)"
          }
          "HOST_VERSION=$v" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          "PUNKTFUNK_BUILD_VERSION=$v" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          Write-Output "host version $v"

      - name: Generate NVENC import lib
        shell: pwsh
        run: |
          & packaging/windows/nvenc/gen-nvenc-importlib.ps1 -OutDir C:\t\nvenc
          "PUNKTFUNK_NVENC_LIB_DIR=C:\t\nvenc" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8

      - name: Build (release, nvenc)
        shell: pwsh
        run: cargo build --release -p punktfunk-host --features nvenc

      - name: Clippy (host, Windows)
        shell: pwsh
        # First-ever Windows lint coverage for the host (Linux CI never lints the windows-cfg code).
        run: cargo clippy -p punktfunk-host --features nvenc -- -D warnings

      - name: Ensure Inno Setup
        shell: pwsh
        run: |
          if (-not (Test-Path 'C:\Program Files (x86)\Inno Setup 6\ISCC.exe') -and -not (Get-Command iscc -ErrorAction SilentlyContinue)) {
            Write-Output "installing Inno Setup via choco"
            choco install innosetup -y --no-progress
          }

      - name: Pack + sign installer
        shell: pwsh
        env:
          MSIX_CERT_PFX_B64: ${{ secrets.MSIX_CERT_PFX_B64 }}
          MSIX_CERT_PASSWORD: ${{ secrets.MSIX_CERT_PASSWORD }}
        run: |
          & packaging/windows/pack-host-installer.ps1 `
            -Version $env:HOST_VERSION -TargetDir C:\t\release -OutDir C:\t\out

      - name: Publish to Gitea generic registry
        shell: pwsh
        env:
          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
        run: |
          # Check curl's exit code ourselves — a best-effort DELETE (404 on first run) must not abort.
          $PSNativeCommandUseErrorActionPreference = $false
          function Publish-File($f, $url) {
            curl.exe -fsS --user "enricobuehler:$($env:REGISTRY_TOKEN)" --upload-file "$f" "$url"
            if ($LASTEXITCODE -ne 0) { throw "upload failed ($LASTEXITCODE): $url" }
            Write-Output "published $url"
          }
          $files = @($env:HOST_SETUP_PATH, $env:HOST_CER_PATH) | Where-Object { $_ -and (Test-Path $_) }
          if (-not $files) { throw "pack produced no artifacts to publish" }
          $base = "https://$($env:REGISTRY)/api/packages/$($env:OWNER)/generic/$($env:PKG)"
          foreach ($f in $files) { Publish-File $f "$base/$($env:HOST_VERSION)/$(Split-Path $f -Leaf)" }
          # Refresh the channel alias (delete-then-reupload, like flatpak.yml/decky.yml) for a
          # predictable download URL: stable release -> `latest/`, canary main build -> `canary/`.
          $alias = if ($env:GITHUB_REF -like 'refs/tags/v*') { 'latest' } else { 'canary' }
          $aliasNames = @{ $env:HOST_SETUP_PATH = 'punktfunk-host-setup.exe'; $env:HOST_CER_PATH = 'punktfunk-host-windows.cer' }
          foreach ($f in $files) {
            $an = $aliasNames[$f]; if (-not $an) { continue }
            curl.exe -fsS -o NUL --user "enricobuehler:$($env:REGISTRY_TOKEN)" -X DELETE "$base/$alias/$an" 2>$null
            Publish-File $f "$base/$alias/$an"
          }

      # On a real release, also attach the signed installer (+ its .cer) to the unified Gitea Release.
      - name: Attach host installer to the Gitea release (stable tags only)
        if: startsWith(gitea.ref, 'refs/tags/v')
        shell: pwsh
        env:
          GITEA_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
        run: |
          . scripts/ci/gitea-release.ps1
          $rid = Ensure-GiteaRelease -Tag $env:GITHUB_REF_NAME -Name $env:GITHUB_REF_NAME -Prerelease 'auto'
          foreach ($f in @($env:HOST_SETUP_PATH, $env:HOST_CER_PATH)) {
            if ($f -and (Test-Path $f)) { Upsert-GiteaAsset -ReleaseId $rid -File $f }
          }