<#
.SYNOPSIS
Milestone XProtect Incident Report Generator

.DESCRIPTION
Analyse les événements Windows liés à Milestone XProtect :
- Redémarrages serveur
- Crash Recording Server
- Crash VideoOS
- Erreurs disque (Event ID 7)

.PARAMETER Days
Nombre de jours à analyser (défaut : 4)

.EXAMPLE
.\Milestone_Incident_Report.ps1 -Days 7 -Verbose

.AUTHOR
Sébastien Couratin – Semper Connect

.LICENSE
GNU AGPL-3.0
#>
[Console]::OutputEncoding = [System.Text.Encoding]::UTF8


param(
    [int]$Days = 4
)

Write-Verbose "Analyse des $Days derniers jours"

$start = (Get-Date).AddDays(-$Days)

Write-Verbose "Date de début d'analyse : $start"

# ==========================================================
# 🔵 REDÉMARRAGES SERVEUR
# ==========================================================

Write-Verbose "Recherche des redémarrages serveur..."

$reboots = Get-WinEvent -FilterHashtable @{
    LogName='System'
    StartTime=$start
} | Where-Object {
    ($_.Id -eq 12 -and $_.ProviderName -eq "Microsoft-Windows-Kernel-General") -or
    ($_.Id -eq 41) -or
    ($_.Id -eq 1074)
}

# ==========================================================
# 🟡 CRASH SERVICE RECORDING
# ==========================================================

Write-Verbose "Recherche des crash Recording Server..."

$recordingCrash = Get-WinEvent -FilterHashtable @{
    LogName='System'
    Id=7031
    StartTime=$start
} | Where-Object {$_.Message -like "*Recording Server*"}

# ==========================================================
# 🔴 CRASH APPLICATION VIDEOOS
# ==========================================================

Write-Verbose "Recherche des crash VideoOS..."

$videoOSCrash = Get-WinEvent -FilterHashtable @{
    LogName='Application'
    Id=1000
    StartTime=$start
} | Where-Object {$_.Message -like "*VideoOS*"}

# ==========================================================
# ⚠️ ERREURS DISQUE (ID 7)
# ==========================================================

Write-Verbose "Recherche des erreurs disque (ID 7)..."

$diskErrors = Get-WinEvent -FilterHashtable @{
    LogName='System'
    Id=7
    StartTime=$start
} -ErrorAction SilentlyContinue


$last3DiskErrors = $diskErrors | Sort-Object TimeCreated -Descending | Select-Object -First 3

# ==========================================================
# 📊 AFFICHAGE SYNTHÈSE CONSOLE
# ==========================================================

Write-Host ""
Write-Host "==============================================="
Write-Host " SYNTHÈSE INCIDENTS MILSTONE XPROTECT"
Write-Host "==============================================="
Write-Host "Période analysée : $Days jours"
Write-Host ""

Write-Host "Redémarrages serveur :" $reboots.Count
Write-Host "Crash Recording Server :" $recordingCrash.Count
Write-Host "Crash Application VideoOS :" $videoOSCrash.Count
Write-Host "Erreurs disque (ID 7) :" $diskErrors.Count
Write-Host ""

if ($last3DiskErrors.Count -gt 0) {
    Write-Host "3 dernières erreurs disque :"
    $last3DiskErrors | Format-Table TimeCreated, ProviderName -AutoSize
}

# ==========================================================
# 🧾 GÉNÉRATION RAPPORT
# ==========================================================

$reportDir = Join-Path $PSScriptRoot "..\reports"

if (-not (Test-Path $reportDir)) {
    New-Item -ItemType Directory -Path $reportDir | Out-Null
}

$reportPath = Join-Path $reportDir ("Milestone_Report_{0}.txt" -f (Get-Date -Format 'yyyyMMdd_HHmm'))

$report = @()
$report += "==============================================="
$report += "RAPPORT INCIDENTS MILSTONE XPROTECT"
$report += "==============================================="
$report += "Date génération : $(Get-Date)"
$report += "Période analysée : $Days jours"
$report += ""
$report += "Redémarrages serveur : $($reboots.Count)"
$report += "Crash Recording Server : $($recordingCrash.Count)"
$report += "Crash Application VideoOS : $($videoOSCrash.Count)"
$report += "Erreurs disque (ID 7) : $($diskErrors.Count)"
$report += ""
$report += "---- 3 DERNIÈRES ERREURS DISQUE ----"

foreach ($err in $last3DiskErrors) {
    $report += "--------------------------------"
    $report += "Date : $($err.TimeCreated)"
    $report += "Source : $($err.ProviderName)"
    $report += "Message : $($err.Message)"
}

$report | Out-File -FilePath $reportPath -Encoding UTF8

Write-Host ""
Write-Host "Rapport généré :" $reportPath
Write-Host ""