name: windows-build
on:
  push:
    branches:
      - 'master'
  pull_request:
    types:
      - labeled
      - synchronize

concurrency:
  # One concurrency group per workflow + ref.
  #
  # - PRs use `refs/pull/<PR_NUMBER>/merge`, so new commits cancel older
  #   in-progress runs for the same PR.
  # - A merge does NOT cancel the PR's own runs: this group is keyed on
  #   refs/pull/<N>/merge and the master push on refs/heads/master, so they
  #   never share a group. See the cancel-pr-runs-on-close workflow.
  # - Branch pushes are isolated by ref.
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  windows-build:
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest]
    runs-on: ${{ matrix.os }}
    name: ${{ matrix.os }}
    env:
      BOOST_ROOT: C:\local\boost_1_87_0
    if: |
      github.repository == 'azerothcore/azerothcore-wotlk'
      && !github.event.pull_request.draft
      && (github.ref == 'refs/heads/master' || contains(github.event.pull_request.labels.*.name, 'run-build') || github.event.label.name == 'run-build')
    steps:
      - uses: actions/checkout@v7
      - name: ccache
        uses: hendrikmuhs/ccache-action@v1.2.13
      # Cache the fetched Boost + MySQL client so we don't re-download ~350 MB
      # and re-run the Boost installer on every run. The Test-Path guards in
      # "Configure OS" short-circuit the install work when these are restored.
      - name: Cache Boost & MySQL
        uses: actions/cache@v6
        with:
          path: |
            C:\local\boost_1_87_0
            C:\tools\mysql\current
          key: winbuild-deps:boost-1.87.0:mysql-8.4.9
      - name: Configure OS
        shell: pwsh
        run: |
          $ErrorActionPreference = 'Stop'

          # The windows-latest runner image already ships CMake, Visual Studio
          # (with the native desktop workload + MSVC) and OpenSSL, so we only need to
          # provide Boost and the MySQL client libraries. We fetch these directly
          # instead of via chocolatey, whose pinned packages keep breaking on CI
          # (VS detection failures and slproweb removing old OpenSSL installers).

          # --- Boost 1.87.0 (msvc-14.3, 64-bit) prebuilt binaries -> C:\local\boost_1_87_0 (BOOST_ROOT) ---
          # Use the direct-download host; the plain /download URL serves an HTML interstitial.
          if (-not (Test-Path 'C:\local\boost_1_87_0\boost'))
          {
              $boostExe = Join-Path $env:RUNNER_TEMP 'boost.exe'
              Invoke-WebRequest -Uri 'https://master.dl.sourceforge.net/project/boost/boost-binaries/1.87.0/boost_1_87_0-msvc-14.3-64.exe?viasf=1' -OutFile $boostExe
              $boostMB = (Get-Item $boostExe).Length / 1MB
              Write-Host ("Downloaded Boost installer: {0:N1} MB" -f $boostMB)
              if ($boostMB -lt 50) { throw "Boost installer download looks wrong ($([int]$boostMB) MB) - likely an HTML page." }
              $boostProc = Start-Process -FilePath $boostExe -ArgumentList '/VERYSILENT','/SUPPRESSMSGBOXES','/NORESTART','/DIR=C:\local\boost_1_87_0' -Wait -PassThru
              if ($boostProc.ExitCode -ne 0) { throw "Boost installer failed with exit code $($boostProc.ExitCode)." }
              # Fail fast if the installer "succeeded" but didn't lay down the expected tree,
              # instead of surfacing a cryptic error later during CMake configuration.
              if (-not (Test-Path 'C:\local\boost_1_87_0\boost\version.hpp')) { throw 'Boost install missing headers at C:\local\boost_1_87_0\boost.' }
              if (-not (Test-Path 'C:\local\boost_1_87_0\lib64-msvc-14.3')) { throw 'Boost install missing prebuilt libs at C:\local\boost_1_87_0\lib64-msvc-14.3.' }
          }

          # --- MySQL 8.4 client headers + libs -> C:\tools\mysql\current (path the build expects) ---
          if (-not (Test-Path 'C:\tools\mysql\current\lib\mysqlclient.lib'))
          {
              # Use the archives CDN directly (keeps every version, unlike dev.mysql.com/get which only
              # serves the current GA). A browser user-agent is required or Oracle returns an HTML error page.
              $mysqlZip = Join-Path $env:RUNNER_TEMP 'mysql.zip'
              Invoke-WebRequest -Uri 'https://cdn.mysql.com/archives/mysql-8.4/mysql-8.4.9-winx64.zip' -OutFile $mysqlZip -UserAgent 'Mozilla/5.0'
              $mysqlMB = (Get-Item $mysqlZip).Length / 1MB
              Write-Host ("Downloaded MySQL zip: {0:N1} MB" -f $mysqlMB)
              if ($mysqlMB -lt 50) { throw "MySQL zip download looks wrong ($([int]$mysqlMB) MB)." }
              New-Item -ItemType Directory -Force -Path 'C:\tools\mysql' | Out-Null
              Expand-Archive -Path $mysqlZip -DestinationPath 'C:\tools\mysql' -Force
              if (Test-Path 'C:\tools\mysql\current') { Remove-Item -Recurse -Force 'C:\tools\mysql\current' }
              Rename-Item 'C:\tools\mysql\mysql-8.4.9-winx64' 'C:\tools\mysql\current'
              # Fail fast if the archive layout changed and the client import library isn't
              # where the build expects it, rather than failing later during CMake/link.
              if (-not (Test-Path 'C:\tools\mysql\current\lib\mysqlclient.lib')) { throw 'MySQL client import library missing at C:\tools\mysql\current\lib\mysqlclient.lib.' }
          }

          # --- OpenSSL: use the copy already installed on the runner image ---
          $opensslRoot = @($env:OPENSSL_ROOT_DIR, 'C:\Program Files\OpenSSL', 'C:\Program Files\OpenSSL-Win64') |
              Where-Object { $_ -and (Test-Path (Join-Path $_ 'include\openssl\opensslv.h')) } |
              Select-Object -First 1
          if (-not $opensslRoot)
          {
              throw 'No OpenSSL development install found on the runner image.'
          }
          "OPENSSL_ROOT_DIR=$opensslRoot" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
          Write-Host "Using OpenSSL at $opensslRoot"
      - name: Build
        shell: bash
        run: |
          export CTOOLS_BUILD=all
          ./acore.sh compiler build