<#
.SYNOPSIS
  Setzt den Status eines Issues in Forgejo via Label (status:todo / status:in-progress / status:done / status:backlog).
.DESCRIPTION
  Entfernt alle status:*-Labels und setzt das neue Status-Label.
  Akzeptierte Werte: "Todo", "InProgress" (oder "In Progress"), "Done", "Backlog".
.PARAMETER IssueNumber
  Die Issue-Nummer (z.B. 68).
.PARAMETER Status
  Der Zielstatus: "Todo", "InProgress", "In Progress", "Done" oder "Backlog".
#>
param(
  [Parameter(Mandatory)][int]$IssueNumber,
  [Parameter(Mandatory)][string]$Status
)

$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" }

# Normalisierung
$normalizedStatus = $Status.Trim() -replace '\s+', ''

$labelMap = @{
  "Todo"       = "status:todo"
  "InProgress" = "status:in-progress"
  "Done"       = "status:done"
  "Backlog"    = "status:backlog"
}

if (-not $labelMap.ContainsKey($normalizedStatus)) {
  $valid = $labelMap.Keys -join ", "
  Write-Error "Ungültiger Status '$Status'. Gültige Werte: $valid (auch 'In Progress' für InProgress)."
  exit 1
}
$newLabel = $labelMap[$normalizedStatus]

# Alle Labels des Issues abrufen
$issueUrl = "$forgejoBase/repos/$repo/issues/$IssueNumber"
$issue = (Invoke-WebRequest -Uri $issueUrl -Headers $headers -UseBasicParsing).Content | ConvertFrom-Json

# Alte status:*-Labels entfernen
$statusLabelIds = $issue.labels | Where-Object { $_.name -like "status:*" } | ForEach-Object { $_.id }
foreach ($id in $statusLabelIds) {
  Invoke-WebRequest -Uri "$forgejoBase/repos/$repo/issues/$IssueNumber/labels/$id" -Method Delete -Headers $headers -UseBasicParsing | Out-Null
}

# Neues Status-Label-ID ermitteln
$allLabels = (Invoke-WebRequest -Uri "$forgejoBase/repos/$repo/labels?limit=50" -Headers $headers -UseBasicParsing).Content | ConvertFrom-Json
$targetLabel = $allLabels | Where-Object { $_.name -eq $newLabel } | Select-Object -First 1
if (-not $targetLabel) {
  Write-Error "Label '$newLabel' nicht auf Forgejo gefunden. Bitte zuerst anlegen."
  exit 1
}

# Neues Status-Label setzen
$body = "{`"labels`":[" + $targetLabel.id + "]}"
Invoke-WebRequest -Uri "$forgejoBase/repos/$repo/issues/$IssueNumber/labels" -Method Post -Headers $headers -Body $body -UseBasicParsing | Out-Null

Write-Host "Issue #$IssueNumber → $normalizedStatus"