# ============================================================
# uninstall_lea.ps1 — Script de desinstallation propre de Lea
# ------------------------------------------------------------
#
# Appele par Inno Setup via [UninstallRun] AVANT la suppression
# des fichiers. Roles :
#
#   1. Tuer proprement le process Lea (via PID du lock)
#   2. Nettoyer shell:startup (supprimer le raccourci auto-start)
#   3. Notifier le serveur de la desinstallation (best-effort)
#   4. Supprimer le lock file
#
# Usage (par Inno Setup) :
#   powershell.exe -NoProfile -ExecutionPolicy Bypass \
#                  -File uninstall_lea.ps1 -AppDir "C:\Program Files\Lea"
# ============================================================

param(
    [Parameter(Mandatory = $true)]
    [string]$AppDir
)

$ErrorActionPreference = 'SilentlyContinue'
Write-Host "Desinstallation de Lea en cours..."

# ---------------------------------------------------------------
# 1. Tuer le process via PID du lock file
# ---------------------------------------------------------------
$LockFile = Join-Path $AppDir "lea_agent.lock"
if (Test-Path $LockFile) {
    try {
        $Pid = (Get-Content $LockFile -ErrorAction Stop | Select-Object -First 1).Trim()
        if ($Pid -match '^\d+$') {
            Write-Host "  Arret du process Lea (PID $Pid)..."
            Stop-Process -Id ([int]$Pid) -Force -ErrorAction SilentlyContinue
            Start-Sleep -Seconds 1
        }
    } catch {
        Write-Host "  Lock file illisible (ignore)."
    }
    Remove-Item $LockFile -Force -ErrorAction SilentlyContinue
}

# ---------------------------------------------------------------
# 2. Nettoyer shell:startup (peut ne pas exister si composant
#    non installe, on le supprime silencieusement dans tous les cas)
# ---------------------------------------------------------------
$StartupDir = [Environment]::GetFolderPath('Startup')
$StartupShortcut = Join-Path $StartupDir "Lea.lnk"
if (Test-Path $StartupShortcut) {
    Write-Host "  Suppression du raccourci auto-start..."
    Remove-Item $StartupShortcut -Force -ErrorAction SilentlyContinue
}

# ---------------------------------------------------------------
# 3. Notifier le serveur de la desinstallation (best-effort)
# ---------------------------------------------------------------
$ConfigFile = Join-Path $AppDir "config.txt"
$MachineIdFile = Join-Path $AppDir "machine_id.txt"
if ((Test-Path $ConfigFile) -and (Test-Path $MachineIdFile)) {
    try {
        $ConfigLines = Get-Content $ConfigFile
        $ServerUrl = ($ConfigLines | Where-Object { $_ -match '^RPA_SERVER_URL=' } | Select-Object -First 1) -replace '^RPA_SERVER_URL=', ''
        $Token     = ($ConfigLines | Where-Object { $_ -match '^RPA_API_TOKEN=' }  | Select-Object -First 1) -replace '^RPA_API_TOKEN=', ''
        $MachineId = (Get-Content $MachineIdFile -ErrorAction Stop | Select-Object -First 1).Trim()

        if ($ServerUrl -and $Token -and $MachineId) {
            Write-Host "  Notification du serveur..."
            $Body = @{
                machine_id = $MachineId
                hostname   = $env:COMPUTERNAME
                event      = 'uninstall'
                timestamp  = (Get-Date -Format "o")
            } | ConvertTo-Json

            Invoke-RestMethod `
                -Uri "$ServerUrl/agents/uninstall" `
                -Method POST `
                -Body $Body `
                -ContentType 'application/json' `
                -Headers @{ Authorization = "Bearer $Token" } `
                -TimeoutSec 5 `
                -ErrorAction SilentlyContinue | Out-Null
        }
    } catch {
        # Best-effort : on ignore toute erreur reseau/auth
        Write-Host "  Notification serveur echouee (ignore)."
    }
}

# ---------------------------------------------------------------
# 4. Supprimer les fichiers restants verrouilles eventuellement
# ---------------------------------------------------------------
Start-Sleep -Seconds 1
Get-ChildItem -Path $AppDir -Filter "*.pyc" -Recurse -ErrorAction SilentlyContinue |
    Remove-Item -Force -ErrorAction SilentlyContinue

Write-Host "Desinstallation : pre-traitement termine."
exit 0