name: CI

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

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  build:
    name: Build
    runs-on: windows-latest
    permissions:
      contents: write # publish release on tag

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable

      - uses: Swatinem/rust-cache@v2

      - name: Resolve version
        id: meta
        shell: pwsh
        run: |
          if ($env:GITHUB_REF -like 'refs/tags/v*') {
            $version = $env:GITHUB_REF_NAME -replace '^v', ''
          } else {
            $version = (Select-String -Path Cargo.toml -Pattern '^version\s*=\s*"([^"]+)"' |
                        Select-Object -First 1).Matches[0].Groups[1].Value
          }
          "version=$version" >> $env:GITHUB_OUTPUT
          Write-Host "version: $version"

      - name: Build
        run: cargo build --release --locked

      # Install unconditionally: the script uses ArchitecturesAllowed=x64compatible,
      # which needs Inno Setup 6.3+. The version in the runner image is not guaranteed.
      - name: Install Inno Setup
        shell: pwsh
        run: choco install innosetup --no-progress -y

      - name: Build installer
        shell: pwsh
        run: |
          $iscc = Get-ChildItem -ErrorAction SilentlyContinue -Path @(
            "${env:ProgramFiles(x86)}\Inno Setup 6\ISCC.exe",
            "${env:ProgramFiles}\Inno Setup 6\ISCC.exe"
          ) | Select-Object -First 1
          if (-not $iscc) { throw "ISCC.exe not found" }

          New-Item -ItemType Directory -Force -Path dist | Out-Null
          Copy-Item target\release\syshelper.exe dist\

          & $iscc.FullName /DAppVersion=${{ steps.meta.outputs.version }} installer\setup.iss
          if ($LASTEXITCODE -ne 0) { throw "ISCC exited with $LASTEXITCODE" }

          Get-ChildItem dist | Format-Table Name, Length

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: syshelper-${{ steps.meta.outputs.version }}-windows-x64
          path: dist/*.exe
          if-no-files-found: error
          retention-days: 30

      - name: Publish release
        if: startsWith(github.ref, 'refs/tags/v')
        shell: pwsh
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          $files = (Get-ChildItem dist\*.exe).FullName
          gh release create $env:GITHUB_REF_NAME $files --generate-notes