name: Build Sidecar (Windows)

on:
  workflow_dispatch:
    inputs:
      tag:
        description: 'Sidecar release tag to build (e.g. sidecar-v1.0.3)'
        required: true

jobs:
  build-sidecar-windows:
    name: Build Sidecar (Windows)
    runs-on: windows-latest
    env:
      PYTHON_VERSION: "3.11"
    steps:
      - name: Determine tag
        id: tag
        shell: powershell
        run: |
          $TAG = "${{ github.event.inputs.tag }}"
          if (-not $TAG) {
            $TAG = (git ls-remote --tags --sort=-v:refname origin 'refs/tags/sidecar-v*' | Select-Object -First 1) -replace '.*refs/tags/', ''
          }
          Write-Host "Building for tag: ${TAG}"
          echo "tag=${TAG}" >> $env:GITHUB_OUTPUT

      - uses: actions/checkout@v4
        with:
          ref: ${{ steps.tag.outputs.tag }}

      - name: Install uv
        shell: powershell
        run: |
          if (Get-Command uv -ErrorAction SilentlyContinue) {
            Write-Host "uv already installed: $(uv --version)"
          } else {
            irm https://astral.sh/uv/install.ps1 | iex
            # Add both possible uv install locations to PATH
            $uvPaths = @(
              "$env:USERPROFILE\.local\bin",
              "$env:USERPROFILE\.cargo\bin",
              "$env:LOCALAPPDATA\uv\bin"
            )
            foreach ($p in $uvPaths) {
              if (Test-Path $p) {
                echo $p | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
              }
            }
          }

      - name: Set up Python
        shell: powershell
        run: uv python install ${{ env.PYTHON_VERSION }}

      - name: Install 7-Zip
        shell: powershell
        run: |
          if (-not (Get-Command 7z -ErrorAction SilentlyContinue)) {
            choco install 7zip -y
          }

      - name: Build sidecar (CUDA)
        shell: powershell
        run: |
          uv sync --frozen
          if ($LASTEXITCODE -ne 0) { uv sync }
          uv run pyinstaller local-transcription-headless.spec

      - name: Package sidecar (CUDA)
        shell: powershell
        run: |
          7z a -tzip -mx=5 sidecar-windows-x86_64-cuda.zip .\dist\local-transcription-backend\*

      - name: Build sidecar (CPU)
        shell: powershell
        run: |
          Remove-Item -Recurse -Force dist\local-transcription-backend, build -ErrorAction SilentlyContinue
          uv pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu --force-reinstall
          # Run pyinstaller directly from venv to prevent uv run from
          # re-resolving torch back to the CUDA version via pyproject.toml sources
          .venv\Scripts\pyinstaller.exe local-transcription-headless.spec

      - name: Package sidecar (CPU)
        shell: powershell
        run: |
          7z a -tzip -mx=5 sidecar-windows-x86_64-cpu.zip .\dist\local-transcription-backend\*

      - name: Upload to sidecar release
        shell: powershell
        env:
          BUILD_TOKEN: ${{ secrets.BUILD_TOKEN }}
        run: |
          $REPO_API = "${{ github.server_url }}/api/v1/repos/${{ github.repository }}"
          $Headers = @{ "Authorization" = "token $env:BUILD_TOKEN" }
          $TAG = "${{ steps.tag.outputs.tag }}"

          Write-Host "Waiting for sidecar release ${TAG} to be available..."
          $RELEASE_ID = $null

          for ($i = 1; $i -le 30; $i++) {
            try {
              $release = Invoke-RestMethod -Uri "${REPO_API}/releases/tags/${TAG}" -Headers $Headers -ErrorAction Stop
              $RELEASE_ID = $release.id

              if ($RELEASE_ID) {
                Write-Host "Found sidecar release: ${TAG} (ID: ${RELEASE_ID})"
                break
              }
            } catch {}

            Write-Host "Attempt ${i}/30: Release not ready yet, retrying in 10s..."
            Start-Sleep -Seconds 10
          }

          if (-not $RELEASE_ID) {
            Write-Host "ERROR: Failed to find sidecar release for tag ${TAG} after 30 attempts."
            exit 1
          }

          Get-ChildItem -Path . -Filter "sidecar-*.zip" | ForEach-Object {
            $filename = $_.Name
            $encodedName = [System.Uri]::EscapeDataString($filename)
            $size = [math]::Round($_.Length / 1MB, 1)
            Write-Host "Uploading ${filename} (${size} MB)..."

            try {
              $assets = Invoke-RestMethod -Uri "${REPO_API}/releases/${RELEASE_ID}/assets" -Headers $Headers
              $existing = $assets | Where-Object { $_.name -eq $filename }
              if ($existing) {
                Invoke-RestMethod -Uri "${REPO_API}/releases/${RELEASE_ID}/assets/$($existing.id)" -Method Delete -Headers $Headers
              }
            } catch {}

            $uploadUrl = "${REPO_API}/releases/${RELEASE_ID}/assets?name=${encodedName}"
            $result = curl.exe --fail --silent --show-error `
              -X POST `
              -H "Authorization: token $env:BUILD_TOKEN" `
              -H "Content-Type: application/octet-stream" `
              -T "$($_.FullName)" `
              "$uploadUrl" 2>&1
            if ($LASTEXITCODE -eq 0) {
              Write-Host "Upload successful: ${filename}"
            } else {
              Write-Host "WARNING: Upload failed for ${filename}: ${result}"
            }
          }