param(
  [string]$RepoPath = "architecture.mmd",
  [string]$Branch = "dev"
)

$ErrorActionPreference = "Stop"

function Set-EnvFromFile {
  param([string]$EnvPath)

  if (-not (Test-Path $EnvPath)) {
    return
  }

  foreach ($line in Get-Content $EnvPath) {
    if ([string]::IsNullOrWhiteSpace($line) -or $line.StartsWith("#")) {
      continue
    }
    $parts = $line -split "=", 2
    if ($parts.Length -ne 2) {
      continue
    }
    [System.Environment]::SetEnvironmentVariable($parts[0], $parts[1], "Process")
  }
}

function Get-OriginInfo {
  $origin = (git remote get-url origin).Trim()

  if ($origin -match "^https?://([^/]+)/([^/]+)/([^/]+?)(?:\.git)?$") {
    return @{
      BaseUrl = "https://$($matches[1])"
      Owner   = $matches[2]
      Repo    = $matches[3]
    }
  }

  throw "Unsupported origin URL format: $origin"
}

Set-EnvFromFile ".env.local"
$originInfo = Get-OriginInfo

$baseUrl = $originInfo.BaseUrl
$owner = $originInfo.Owner
$repo = $originInfo.Repo
$token = $env:FORGEJO_TOKEN

if (-not $token) {
  throw "FORGEJO_TOKEN is missing. Add it to .env.local."
}

$encodedPath = [System.Uri]::EscapeDataString($RepoPath).Replace("%2F", "/")
$url = "$baseUrl/api/v1/repos/$owner/$repo/contents/${encodedPath}?ref=${Branch}"
$headers = @{ Authorization = "token $token" }

$response = Invoke-RestMethod -Headers $headers -Uri $url -Method Get
$base64Content = ($response.content -replace "`n", "")
[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Content))