<#
.SYNOPSIS
  Erstellt ein neues Issue auf Forgejo und setzt das Status-Label.
.DESCRIPTION
  Legt ein Issue an und setzt ein Status-Label (status:todo oder status:backlog).
  Die Reihenfolge ergibt sich aus der Issue-Nummer (aufsteigend = ältere zuerst).
  - Status "Todo" (Standard): Label status:todo → wird als nächstes Ticket gefunden.
  - Status "Backlog": Label status:backlog → wird erst nach Todo-Items bearbeitet.
.PARAMETER Title
  Titel des neuen Issues.
.PARAMETER Body
  Body-Text des Issues (Markdown). Optional, Default: leer.
.PARAMETER Labels
  Komma-separierte Labels (z.B. "infrastructure,enhancement"). Muss mindestens
  ein Type-Label enthalten: migration, tech-decision, infrastructure, block-planning,
  feature, refactoring, planning oder test.
.PARAMETER Status
  Status des neuen Tickets: "Todo" (Standard) oder "Backlog".
#>
param(
    [Parameter(Mandatory)][string]$Title,
    [string]$Body = "",
    [Parameter(Mandatory)][string]$Labels,
    [ValidateSet("Todo", "Backlog")]
    [string]$Status = "Todo"
)

$forgejoBase = "https://git.bollwerk.online/api/v1"
$repo        = "bollwerkadmin/bollwerk"
$tokenFile   = Join-Path $PSScriptRoot "forgejo-token.txt"
$token       = (Get-Content $tokenFile -Raw -ErrorAction Stop).Trim()
$headers     = @{ Authorization = "token $token"; "Content-Type" = "application/json" }

$statusLabelMap = @{
    "Todo"    = "status:todo"
    "Backlog" = "status:backlog"
}

# --- 1. Type-Label validieren ---
$labelList = $Labels -split ',' | ForEach-Object { $_.Trim() }
$validTypes = @("migration","tech-decision","infrastructure","block-planning","feature","refactoring","planning","test")
$hasType = ($labelList | Where-Object { $validTypes -contains $_ }).Count -gt 0
if (-not $hasType) {
    Write-Error "Mindestens ein Type-Label erforderlich: $($validTypes -join ', ')"
    exit 1
}

# --- 2. Alle Label-Namen zu IDs auflösen ---
$allLabels = (Invoke-WebRequest -Uri "$forgejoBase/repos/$repo/labels?limit=50" -Headers $headers -UseBasicParsing).Content | ConvertFrom-Json
$statusLabelName = $statusLabelMap[$Status]
$allRequiredLabels = $labelList + $statusLabelName

$labelIds = @()
foreach ($name in $allRequiredLabels) {
    $found = $allLabels | Where-Object { $_.name -eq $name } | Select-Object -First 1
    if ($found) { $labelIds += $found.id }
    else { Write-Warning "Label '$name' nicht gefunden – wird übersprungen." }
}

# --- 3. Issue anlegen ---
$issueBody = @{ title = $Title; labels = $labelIds } 
if ($Body) { $issueBody["body"] = $Body }
$issueJson = $issueBody | ConvertTo-Json

$issueResp = Invoke-WebRequest -Uri "$forgejoBase/repos/$repo/issues" -Method Post -Headers $headers -Body $issueJson -UseBasicParsing
$issue = $issueResp.Content | ConvertFrom-Json
$issueNumber = $issue.number
$issueUrl    = $issue.html_url

Write-Host "#$issueNumber $Title (Status: $Status)"
Write-Host "URL: $issueUrl"