$ErrorActionPreference = "Stop"

function Set-WasmToolchainEnv {
    param()
    $clang = $env:CC
    if (-not $clang -or -not (Test-Path $clang)) {
        $defaultClang = "C:\\Program Files\\LLVM\\bin\\clang.exe"
        if (Test-Path $defaultClang) {
            $clang = $defaultClang
        } else {
            $cmd = Get-Command clang.exe -ErrorAction SilentlyContinue
            if ($cmd) { $clang = $cmd.Path }
        }
    }
    if (-not $clang) { throw "Clang introuvable. Installez LLVM/Clang et relancez." }

    $env:CC = $clang
    $llvmBin = Split-Path $clang -Parent
    $env:AR = Join-Path $llvmBin "llvm-ar.exe"
    $env:NM = Join-Path $llvmBin "llvm-nm.exe"

    $env:TARGET_CC = $env:CC
    $env:CC_wasm32_unknown_unknown = $env:CC
    $env:AR_wasm32_unknown_unknown = $env:AR
    $env:NM_wasm32_unknown_unknown = $env:NM
    [System.Environment]::SetEnvironmentVariable('CC_wasm32-unknown-unknown', $env:CC, 'Process')
    [System.Environment]::SetEnvironmentVariable('AR_wasm32-unknown-unknown', $env:AR, 'Process')
    [System.Environment]::SetEnvironmentVariable('NM_wasm32-unknown-unknown', $env:NM, 'Process')
}

function Invoke-WasmPackTests {
    param(
        [switch]$Chrome,
        [switch]$Firefox,
        [switch]$Node
    )
    if ($Chrome) { wasm-pack test --headless --chrome }
    if ($Firefox) { wasm-pack test --headless --firefox }
    if ($Node) { wasm-pack test --node }
}

$runnerSet = $false
function Ensure-WasmBindgenRunner {
    param()
    $runner = Join-Path "$env:USERPROFILE\.cargo\bin" "wasm-bindgen-test-runner.exe"
    if (-not (Test-Path $runner)) {
        Write-Host "Installing wasm-bindgen-test-cli..." -ForegroundColor Yellow
        cargo install wasm-bindgen-test-cli --locked --force | Out-Null
    }
    if (Test-Path $runner) {
        $script:runnerSet = $true
        $env:WASM_BINDGEN_TEST_RUNNER = $runner
    } else {
        Write-Warning "wasm-bindgen-test-runner introuvable après installation. PATH: $env:PATH"
    }
}

$scriptsDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$repoRoot = Split-Path -Parent $scriptsDir
Push-Location $repoRoot
try {
    Set-WasmToolchainEnv
    Ensure-WasmBindgenRunner
    cargo clean --target wasm32-unknown-unknown | Out-Null
    try {
        Invoke-WasmPackTests -Chrome -Firefox
    } catch {
        Write-Warning "Tests headless navigateur échoués, tentative avec Node."
        Invoke-WasmPackTests -Node
    }
} finally {
    Pop-Location
}