name: CI

on:
  push:
    branches: [main]
    tags: ["v*"]
  pull_request:
    branches: [main]
  workflow_dispatch:

# Targets a self-hosted Windows runner inside mainland China. See README
# "Continuous integration" for runner prerequisites. Key points:
#   * github.com is unreachable here, so the checkout action is pulled from the
#     gitea.com mirror. If gitea.com is also unreachable, use the manual
#     checkout fallback below (it clones from your own Gitea instance).
#   * Flutter must be pre-installed on the runner (the dev machine). We do NOT
#     download the SDK.
#   * pub/Flutter use the flutter-io.cn mirrors; the sqlite3 native binary is
#     vendored (vendor/sqlite3/), so neither is downloaded from GitHub.
#   * The flutter_onnxruntime plugin downloads the ONNX Runtime native lib from
#     GitHub during the Windows build; we route that through the local proxy.
env:
  PUB_HOSTED_URL: https://pub.flutter-io.cn
  FLUTTER_STORAGE_BASE_URL: https://storage.flutter-io.cn

jobs:
  windows:
    name: Windows build
    runs-on: windows-latest
    steps:
      - name: Checkout
        uses: https://gitea.com/actions/checkout@v4

      # Ensure Flutter is available. The runner's Actions shell does not have
      # Flutter on PATH, so: use it if present (PATH / FLUTTER_ROOT / common
      # dirs), otherwise install the pinned SDK from the flutter-io.cn mirror
      # into a persistent dir (C:\flutter-ci) that is reused across runs.
      - name: Set up Flutter
        shell: powershell
        run: |
          $ErrorActionPreference = 'Stop'
          $ProgressPreference = 'SilentlyContinue'
          if (Get-Command flutter -ErrorAction SilentlyContinue) {
            Write-Host "flutter already on PATH"; exit 0
          }
          $candidates = @()
          if ($env:FLUTTER_ROOT) { $candidates += (Join-Path $env:FLUTTER_ROOT 'bin') }
          $candidates += @(
            'C:\flutter-ci\flutter\bin','C:\flutter\bin','C:\src\flutter\bin',
            'C:\tools\flutter\bin','C:\dev\flutter\bin',
            "$env:USERPROFILE\flutter\bin","$env:LOCALAPPDATA\flutter\bin"
          )
          foreach ($c in $candidates) {
            if ($c -and (Test-Path (Join-Path $c 'flutter.bat'))) {
              Write-Host "Found Flutter at $c"
              Add-Content -Path $env:GITHUB_PATH -Value $c
              exit 0
            }
          }
          # Install the pinned SDK from the China mirror into a persistent dir.
          $root = 'C:\flutter-ci'
          $bin  = Join-Path $root 'flutter\bin'
          if (-not (Test-Path (Join-Path $bin 'flutter.bat'))) {
            $url = 'https://storage.flutter-io.cn/flutter_infra_release/releases/stable/windows/flutter_windows_3.41.4-stable.zip'
            $zip = Join-Path $env:TEMP 'flutter_sdk.zip'
            New-Item -ItemType Directory -Force -Path $root | Out-Null
            Write-Host "Downloading Flutter SDK from $url"
            $ok = $false
            # curl.exe (bundled on Windows 10+) streams to disk and is far
            # faster than Invoke-WebRequest for a ~1GB file. Fall back to IWR.
            $curl = "$env:SystemRoot\System32\curl.exe"
            if (Test-Path $curl) {
              & $curl -L --fail --retry 3 --retry-delay 5 -o $zip $url
              if ($LASTEXITCODE -eq 0 -and (Test-Path $zip)) { $ok = $true }
              else { Write-Host "curl download failed (exit $LASTEXITCODE), falling back" }
            }
            if (-not $ok) {
              for ($i = 1; $i -le 3 -and -not $ok; $i++) {
                try { Invoke-WebRequest -Uri $url -OutFile $zip -UseBasicParsing; $ok = $true }
                catch { Write-Host "IWR attempt $i failed: $_"; Start-Sleep 5 }
              }
            }
            if (-not $ok) { Write-Error "Failed to download Flutter SDK"; exit 1 }
            Write-Host "Extracting to $root (this is slow on first run)"
            Expand-Archive -Path $zip -DestinationPath $root -Force
            Remove-Item $zip -Force
          }
          if (-not (Test-Path (Join-Path $bin 'flutter.bat'))) {
            Write-Error "Flutter install failed"; exit 1
          }
          Write-Host "Flutter ready at $bin"
          Add-Content -Path $env:GITHUB_PATH -Value $bin

      - name: Flutter version
        run: flutter --version

      - name: Install dependencies
        run: flutter pub get

      # Quality gates run but never block the build, so a usable .exe is always
      # produced even if a different toolchain version reports new lints.
      - name: Format check (non-blocking)
        continue-on-error: true
        run: dart format --output=none --set-exit-if-changed lib test

      - name: Analyze (non-blocking)
        continue-on-error: true
        run: flutter analyze

      - name: Test (non-blocking)
        continue-on-error: true
        run: flutter test --reporter expanded

      - name: Enable Windows desktop
        run: flutter config --enable-windows-desktop

      # CMake's file(DOWNLOAD) honours these proxy vars when fetching ONNX
      # Runtime. Defaults to the local clash/v2ray proxy; override with repo
      # secrets HTTP_PROXY / HTTPS_PROXY if yours differs. Install ONNX Runtime
      # system-wide to skip the download entirely.
      - name: Build Windows release
        env:
          HTTP_PROXY: http://127.0.0.1:7890
          HTTPS_PROXY: http://127.0.0.1:7890
          http_proxy: http://127.0.0.1:7890
          https_proxy: http://127.0.0.1:7890
        run: flutter build windows --release

      - name: Show build output
        shell: powershell
        run: Get-ChildItem build\windows\x64\runner\Release

      - name: Package artifact
        shell: powershell
        run: Compress-Archive -Path "build/windows/x64/runner/Release/*" -DestinationPath "badnote-windows-x64.zip" -Force

      - name: Upload artifact (best-effort)
        continue-on-error: true
        uses: https://gitea.com/actions/upload-artifact@v3
        with:
          name: badnote-windows-x64
          path: badnote-windows-x64.zip
          if-no-files-found: warn