# HardwareInfo.ps1
# DeployCenter - Inventaire matériel
# Compatible Windows PowerShell 5.1 / WinPE

function Get-HardwareInfo {
    [CmdletBinding()]
    param()

    $info = [ordered]@{
        Manufacturer = "Inconnu"
        Model        = "Inconnu"
        SerialNumber = "Inconnu"
        Firmware     = "Inconnu"
        Architecture = $env:PROCESSOR_ARCHITECTURE
        WinPE        = $false
        Disks        = @()
        Errors       = @()
    }

    # Fabricant et modele du PC
    try {
        $computer = Get-CimInstance `
            -ClassName Win32_ComputerSystem `
            -ErrorAction Stop

        if ($computer.Manufacturer) {
            $info.Manufacturer = $computer.Manufacturer.Trim()
        }

        if ($computer.Model) {
            $info.Model = $computer.Model.Trim()
        }
    }
    catch {
        $info.Errors += "Modele du PC : $($_.Exception.Message)"
    }

    # Numero de serie
    try {
        $bios = Get-CimInstance `
            -ClassName Win32_BIOS `
            -ErrorAction Stop

        if ($bios.SerialNumber) {
            $info.SerialNumber = $bios.SerialNumber.Trim()
        }
    }
    catch {
        $info.Errors += "Numero de serie : $($_.Exception.Message)"
    }

    # Detection du firmware
    try {
        $firmwareKey = Get-ItemProperty `
            -Path "HKLM:\SYSTEM\CurrentControlSet\Control" `
            -Name PEFirmwareType `
            -ErrorAction Stop

        switch ([int]$firmwareKey.PEFirmwareType) {
            1 { $info.Firmware = "BIOS (Legacy)" }
            2 { $info.Firmware = "UEFI" }
            default { $info.Firmware = "Indetermine" }
        }
    }
    catch {
        $info.Errors += "Mode firmware indisponible"
    }

    # Detection de WinPE
    $info.WinPE = Test-Path `
        "HKLM:\SYSTEM\CurrentControlSet\Control\MiniNT"

    # Inventaire des disques physiques
    try {
        $disks = @(Get-Disk -ErrorAction Stop)

        foreach ($disk in $disks) {
            $operationalStatus = @($disk.OperationalStatus | ForEach-Object { [string]$_ } | Where-Object { -not [string]::IsNullOrWhiteSpace($_) })
            $status = if ($operationalStatus.Count -gt 0) { $operationalStatus -join ', ' } else { 'Inconnu' }

            $info.Disks += [PSCustomObject]@{
                Index         = [int]$disk.Number
                Model         = [string]$disk.FriendlyName
                SizeBytes     = [long]$disk.Size
                SizeGB        = [math]::Round(
                    ([double]$disk.Size / 1GB), 1
                )
                BusType       = [string]$disk.BusType
                Status        = $status
                HealthStatus  = [string]$disk.HealthStatus
            }
        }
    }
    catch {
        $info.Errors += "Inventaire des disques : $($_.Exception.Message)"
    }

    # Retourner un objet exploitable par les autres modules
    [PSCustomObject]$info
}