# Forgejo 릴리스에 산출물을 업로드한다. 릴리스가 없으면 만들고, 동명 자산은 교체한다(재실행 멱등).
# 사용: ./build/ci/upload-release-asset.ps1 -Tag v1.0.0 -Files out/a.exe, out/b.exe [-Publish]
param(
    [Parameter(Mandatory)][string]$Tag,
    [Parameter(Mandatory)][string[]]$Files,
    [switch]$Publish,
    [string]$Notes = "",
    [string]$Repo = ""
)
$ErrorActionPreference = 'Stop'

# .env 자동 로드 (로컬 실행 시)
$root = Split-Path -Parent (Split-Path -Parent $PSScriptRoot)
$envFile = Join-Path $root ".env"
if (Test-Path $envFile) {
    foreach ($line in Get-Content $envFile) {
        if ($line -match '^\s*([A-Za-z0-9_]+)\s*=\s*(.+)$') {
            $k = $Matches[1]; $v = $Matches[2].Trim()
            if (-not (Get-Item "env:$k" -ErrorAction SilentlyContinue)) {
                Set-Item "env:$k" $v
            }
        }
    }
}

$token = if ($env:RELEASE_TOKEN) { $env:RELEASE_TOKEN } else { $env:FORGEJO_TOKEN }
$hdr = @{}

if ($token) {
    $hdr["Authorization"] = "token $token"
} elseif ($env:FORGEJO_USER -and $env:FORGEJO_PASSWORD) {
    $bytes = [System.Text.Encoding]::UTF8.GetBytes("$($env:FORGEJO_USER):$($env:FORGEJO_PASSWORD)")
    $b64 = [Convert]::ToBase64String($bytes)
    $hdr["Authorization"] = "Basic $b64"
} else {
    throw ".env 에 FORGEJO_TOKEN 또는 FORGEJO_USER/PASSWORD 가 없습니다."
}

$serverUrl = if ($env:GITHUB_SERVER_URL) { $env:GITHUB_SERVER_URL }
             elseif ($env:FORGEJO_URL) { $env:FORGEJO_URL }
             else { "https://git.chanpaca.net" }
$serverUrl = $serverUrl.TrimEnd('/')

$targetRepo = if ($Repo) { $Repo }
              elseif ($env:RELEASE_REPO) { $env:RELEASE_REPO }
              elseif ($env:GITHUB_REPOSITORY) { $env:GITHUB_REPOSITORY }
              else { "Video-Downloader/releases" }

$api = "$serverUrl/api/v1/repos/$targetRepo"

$isDraft = -not $Publish
$isPrerelease = ($env:RELEASE_PRERELEASE -eq 'true')

# draft 릴리스는 tags/<tag> 단건 조회에 안 잡힐 수 있어 목록에서 tag_name 으로 찾는다
function Find-Release {
    try {
        (Invoke-RestMethod -Uri "$api/releases?limit=50" -Headers $hdr) |
            Where-Object tag_name -eq $Tag | Select-Object -First 1
    } catch {
        return $null
    }
}

$rel = Find-Release
if (-not $rel) {
    $bodyObj = @{
        tag_name = $Tag
        name = $Tag
        draft = $isDraft
        prerelease = $isPrerelease
    }
    if ($Notes) { $bodyObj["body"] = $Notes }
    $body = $bodyObj | ConvertTo-Json

    try {
        $rel = Invoke-RestMethod -Method Post -Uri "$api/releases" -Headers $hdr -ContentType 'application/json' -Body $body
    } catch {
        $rel = Find-Release   # 병렬 잡 동시 생성 경합 대비
    }
} else {
    # 기존 릴리스가 있고 Publish 옵션이 주어졌는데 현재 draft 상태인 경우 Publish로 갱신
    if ($Publish -and $rel.draft) {
        $patchBody = @{ draft = $false } | ConvertTo-Json
        $rel = Invoke-RestMethod -Method Patch -Uri "$api/releases/$($rel.id)" -Headers $hdr -ContentType 'application/json' -Body $patchBody
        Write-Host "릴리스를 정식 공개(Published) 상태로 전환했습니다." -ForegroundColor Green
    }
}

if (-not $rel) { throw "릴리스 확보 실패: $Tag (저장소: $targetRepo)" }
$statusStr = if ($rel.draft) { "Draft" } else { "Published" }
Write-Host "릴리스 #$($rel.id) ($Tag, 상태: $statusStr, 저장소: $targetRepo)" -ForegroundColor Cyan

foreach ($f in $Files) {
    if (-not (Test-Path $f)) {
        Write-Warning "파일이 존재하지 않아 건너뜁니다: $f"
        continue
    }
    $item = Get-Item $f
    (Invoke-RestMethod -Uri "$api/releases/$($rel.id)/assets" -Headers $hdr) |
        Where-Object name -eq $item.Name | ForEach-Object {
            Invoke-RestMethod -Method Delete -Uri "$api/releases/$($rel.id)/assets/$($_.id)" -Headers $hdr | Out-Null
        }
    Invoke-RestMethod -Method Post -Uri "$api/releases/$($rel.id)/assets?name=$($item.Name)" `
        -Headers $hdr -Form @{ attachment = $item } | Out-Null
    Write-Host ("업로드 완료: {0} ({1:N1} MB)" -f $item.Name, ($item.Length / 1MB)) -ForegroundColor Green
}