namespace ZA.CoreService.ESBCertificateManager.Models;

/// <summary>
/// Verbindungskonfiguration für eine Progress Sonic ESB Management Instanz.
/// Name = Verbindungs-Alias (hier oft gleich ContainerName, z.B. "DE-Test").
/// DomainName = Sonic-Domain (z.B. "proalpha-test").
/// Container wird in KnownContainers / DeploymentTarget.ContainerName geführt (z.B. "DE-Test").
/// </summary>
public sealed class SonicConnection
{
    /// <summary>
    /// Alias der Verbindung; referenziert von <see cref="DeploymentTarget.SonicConnectionName"/>.
    /// </summary>
    public required string Name { get; init; }

    /// <summary>Sonic-Domain, z.B. "proalpha-test" (nicht der Containername).</summary>
    public required string DomainName { get; init; }

    /// <summary>
    /// Domain-Manager-/Broker-URL, z.B. "tcp://dekun-painwbdet:13070".
    /// </summary>
    public required string ConnectionUrl { get; init; }

    public required string Username { get; init; }
    public required string Password { get; init; }

    public SonicManagementMode ManagementMode { get; init; } = SonicManagementMode.WinRm;

    /// <summary>Sonic-Installationsroot, z.B. "C:\Sonic\MQ10.0".</summary>
    public string SonicHome { get; init; } = @"C:\Sonic\MQ10.0";

    /// <summary>
    /// Container-Namen (kurz), z.B. ["DE-Test"]. Nicht die Domain.
    /// </summary>
    public List<string> KnownContainers { get; init; } = [];

    public int ManagementHttpPort { get; init; } = 8080;
    public string ApiBasePath { get; init; } = "/api/v1";
    public string ContainerListPath { get; init; } = string.Empty;
    public string ContainerRestartPath { get; init; } = string.Empty;
    public string ContainerStopPath { get; init; } = string.Empty;
    public string ContainerStartPath { get; init; } = string.Empty;

    public int WinRmPort { get; init; } = 5985;
    public string WinRmRestartScript { get; init; } = string.Empty;
    public string WinRmContainerListScript { get; init; } = string.Empty;
    public string WinRmXapiImportScript { get; init; } = string.Empty;

    public int TimeoutSeconds { get; init; } = 120;
    public int PostRestartDelaySeconds { get; init; } = 20;

    public string ResolveRestartScript()
        => string.IsNullOrWhiteSpace(WinRmRestartScript)
            ? DefaultRestartScript
            : WinRmRestartScript;

    public string ResolveContainerListScript()
        => string.IsNullOrWhiteSpace(WinRmContainerListScript)
            ? DefaultContainerListScript
            : WinRmContainerListScript;

    /// <summary>
    /// Echter Neustart mit Prozess-Verifikation (sichtbar in SMC):
    /// alte PIDs müssen weg, neue PIDs müssen erscheinen – sonst Fehler.
    /// </summary>
    public const string DefaultRestartScript =
        """
        $ErrorActionPreference = 'Stop'
        $sonicHome = '{sonicHome}'
        $domain = '{domain}'
        $container = '{container}'
        $connectionUrl = '{connectionUrl}'
        $username = '{username}'
        $password = '{password}'

        $bin = Join-Path $sonicHome 'bin'
        $stopBat = Join-Path $bin 'stopcontainer.bat'
        $startBat = Join-Path $bin 'startcontainer.bat'
        $esbAdmin = Join-Path $bin 'esbadmin.bat'

        # Kurzname = Container (z.B. DE-Test), Full = Domain.Container (z.B. proalpha-test.DE-Test)
        $shortName = if ($container -like '*.*') { ($container -split '\.', 2)[1] } else { $container }
        $fullName  = if ($container -like '*.*') { $container } else { "$domain.$container" }
        $markers = @($shortName, $fullName, "$domain.$shortName") | Select-Object -Unique

        function Get-ContainerPids {
            $pids = @()
            Get-CimInstance Win32_Process -ErrorAction SilentlyContinue |
                Where-Object {
                    $cmd = $_.CommandLine
                    if (-not $cmd) { return $false }
                    if ($_.Name -notmatch 'java|javaw|sonic') { return $false }
                    foreach ($m in $markers) {
                        if ($cmd -like "*$m*") { return $true }
                    }
                    return $false
                } |
                ForEach-Object { $pids += [int]$_.ProcessId }
            return @($pids | Select-Object -Unique)
        }

        function Wait-PidsGone([int[]]$pids, [int]$seconds) {
            $deadline = (Get-Date).AddSeconds($seconds)
            while ((Get-Date) -lt $deadline) {
                $alive = @($pids | Where-Object { Get-Process -Id $_ -ErrorAction SilentlyContinue })
                if ($alive.Count -eq 0) { return $true }
                Start-Sleep -Seconds 2
            }
            return $false
        }

        function Wait-NewPids([int[]]$oldPids, [int]$seconds) {
            $deadline = (Get-Date).AddSeconds($seconds)
            while ((Get-Date) -lt $deadline) {
                $now = @(Get-ContainerPids)
                $fresh = @($now | Where-Object { $oldPids -notcontains $_ })
                if ($fresh.Count -gt 0) { return ,$fresh }
                Start-Sleep -Seconds 2
            }
            return ,@()
        }

        Write-Output "INFO:Domain=$domain Container=$shortName Full=$fullName"
        $before = @(Get-ContainerPids)
        Write-Output "INFO:PIDsVorher=$($before -join ',')"

        if ($before.Count -eq 0) {
            Write-Output "WARN:Kein laufender Java/Sonic-Prozess für '$shortName' gefunden – Stop ggf. schon offline; starte trotzdem."
        }

        # 1) Optional: esbadmin (SMC-kompatibel über Domain Manager)
        if (Test-Path -LiteralPath $esbAdmin) {
            Write-Output "INFO:Versuche esbadmin Stop/Start"
            $scriptText = "connect $domain $connectionUrl $username $password`r`nstop container $shortName`r`nstart container $shortName`r`nexit`r`n"
            $tmp = [System.IO.Path]::GetTempFileName() + '.txt'
            Set-Content -LiteralPath $tmp -Value $scriptText -Encoding ASCII
            try {
                $p = Start-Process -FilePath 'cmd.exe' -ArgumentList @('/c', "`"$esbAdmin`" < `"$tmp`"") -Wait -PassThru -NoNewWindow
                Write-Output "INFO:esbadmin ExitCode=$($p.ExitCode)"
            }
            finally {
                Remove-Item -LiteralPath $tmp -Force -ErrorAction SilentlyContinue
            }
            Start-Sleep -Seconds 5
        }

        # 2) stopcontainer.bat
        if (Test-Path -LiteralPath $stopBat) {
            foreach ($n in @($fullName, $shortName)) {
                Write-Output "INFO:stopcontainer $n"
                $sp = Start-Process -FilePath 'cmd.exe' -ArgumentList @('/c', "`"$stopBat`" `"$n`"") -Wait -PassThru -NoNewWindow
                Write-Output "INFO:stopcontainer ExitCode=$($sp.ExitCode) Name=$n"
            }
        }
        else {
            Write-Output "WARN:stopcontainer.bat fehlt: $stopBat"
        }

        Start-Sleep -Seconds 3
        $still = @(Get-ContainerPids)

        # 3) Harter Stop der alten PIDs – sonst sieht SMC oft keinen Neustart
        if ($still.Count -gt 0) {
            Write-Output "INFO:Force-Stop PIDs=$($still -join ',')"
            foreach ($procId in $still) {
                Stop-Process -Id $procId -Force -ErrorAction SilentlyContinue
            }
        }

        if ($before.Count -gt 0) {
            if (-not (Wait-PidsGone -pids $before -seconds 45)) {
                throw "Container-Prozess läuft noch nach Stop (PIDs=$($before -join ',')). SMC würde keinen Stop sehen."
            }
            Write-Output "INFO:Alte PIDs beendet"
        }

        Start-Sleep -Seconds 3

        # 4) Start
        if (-not (Test-Path -LiteralPath $startBat)) {
            throw "startcontainer.bat nicht gefunden: $startBat (SonicHome prüfen)"
        }

        $started = $false
        foreach ($n in @($fullName, $shortName)) {
            Write-Output "INFO:startcontainer $n"
            $st = Start-Process -FilePath 'cmd.exe' -ArgumentList @('/c', "`"$startBat`" `"$n`"") -Wait -PassThru -NoNewWindow
            Write-Output "INFO:startcontainer ExitCode=$($st.ExitCode) Name=$n"
            if ($st.ExitCode -eq 0) { $started = $true; break }
        }

        if (-not $started) {
            throw "startcontainer fehlgeschlagen für $fullName / $shortName"
        }

        $after = @(Wait-NewPids -oldPids $before -seconds 60)
        if ($after.Count -eq 0) {
            # falls Prozess mit gleicher PID-Liste zurückkam: mindestens irgendeinen Treffer verlangen
            $any = @(Get-ContainerPids)
            if ($any.Count -eq 0) {
                throw "Nach Start kein Prozess für Container '$shortName' sichtbar. In SMC prüfen / SonicHome & ContainerName prüfen."
            }
            Write-Output "INFO:PIDsNachher=$($any -join ',')"
        }
        else {
            Write-Output "INFO:PIDsNachher=$($after -join ',')"
        }

        Write-Output "OK:ContainerRestartVerified Domain=$domain Container=$shortName"
        """;

    public const string DefaultContainerListScript =
        """
        $ErrorActionPreference = 'Continue'
        $sonicHome = '{sonicHome}'
        $domain = '{domain}'
        $names = New-Object System.Collections.Generic.List[string]

        function Add-Name([string]$n) {
            if ([string]::IsNullOrWhiteSpace($n)) { return }
            $n = $n.Trim()
            if (-not $names.Contains($n)) { [void]$names.Add($n) }
        }

        if (-not (Test-Path -LiteralPath $sonicHome)) {
            Write-Output "WARN:SonicHomeNichtGefunden:$sonicHome"
        }
        else {
            Write-Output "INFO:SonicHomeOk:$sonicHome Domain=$domain"

            Get-ChildItem -LiteralPath $sonicHome -Directory -ErrorAction SilentlyContinue |
                ForEach-Object {
                    if ($_.Name -like '*.cache') {
                        Add-Name ($_.Name -replace '\.cache$', '')
                    }
                    Get-ChildItem -LiteralPath $_.FullName -Directory -ErrorAction SilentlyContinue |
                        Where-Object { $_.Name -like '*.cache' } |
                        ForEach-Object { Add-Name ($_.Name -replace '\.cache$', '') }
                }

            Get-ChildItem -LiteralPath $sonicHome -Recurse -Filter 'container.xml' -File -ErrorAction SilentlyContinue |
                Select-Object -First 40 |
                ForEach-Object {
                    Add-Name (Split-Path $_.DirectoryName -Leaf)
                }
        }

        Get-CimInstance Win32_Process -ErrorAction SilentlyContinue |
            Where-Object { $_.CommandLine -match 'sonic|mf\.framework|container\.xml' } |
            ForEach-Object {
                if ($_.CommandLine -match '([A-Za-z0-9_\-]+\.[A-Za-z0-9_\-]+)\.cache') {
                    Add-Name $Matches[1]
                }
                elseif ($_.CommandLine -match '\\([A-Za-z0-9_\-]+)\\container\.xml') {
                    Add-Name $Matches[1]
                }
            }

        # Kurzform Domain.Container → Container
        foreach ($n in @($names.ToArray())) {
            if ($n -like '*.*') {
                $parts = $n -split '\.', 2
                if ($parts.Count -eq 2) { Add-Name $parts[1] }
            }
        }

        if ($names.Count -eq 0) {
            Write-Output "WARN:KeineContainerGefunden Domain=$domain SonicHome=$sonicHome"
        }

        $names | Sort-Object -Unique
        """;
}

public enum SonicManagementMode
{
    HttpApi = 0,
    WinRm = 1,
    LocalCmd = 2
}