param(
    [string]$GiteaUrl = $(if ($env:GITEA_URL) { $env:GITEA_URL } else { "https://gitea.kmux.cn" }),
    [string]$Owner = $(if ($env:GITEA_OWNER) { $env:GITEA_OWNER } else { "Eeveid" }),
    [string]$Repo = $(if ($env:GITEA_REPO) { $env:GITEA_REPO } else { "lightOps" }),
    [Parameter(Mandatory = $true)][string]$Tag,
    [string]$Title = "",
    [string]$Notes = "",
    [string]$Target = "main",
    [Parameter(Mandatory = $true)][string[]]$Package,
    [switch]$NoCreateTag,
    [switch]$NoPushTag,
    [switch]$Prerelease,
    [switch]$SkipCertificateCheck
)

$ErrorActionPreference = "Stop"

if (-not $env:GITEA_TOKEN) {
    throw "必须设置环境变量 GITEA_TOKEN"
}

if (-not $Title) {
    $Title = $Tag
}

foreach ($item in $Package) {
    if (-not (Test-Path -LiteralPath $item -PathType Leaf)) {
        throw "发布包不存在：$item"
    }
}

function Write-Step {
    param([string]$Message)
    Write-Host "[LightOps] $Message" -ForegroundColor Green
}

function Api-Url {
    param([string]$Path)
    "$($GiteaUrl.TrimEnd('/'))/api/v1/repos/$Owner/$Repo/$Path"
}

function Invoke-Gitea {
    param(
        [string]$Method,
        [string]$Uri,
        $Body = $null,
        [string]$ContentType = "application/json"
    )
    $headers = @{ Authorization = "token $env:GITEA_TOKEN" }
    $args = @{
        Method = $Method
        Uri = $Uri
        Headers = $headers
    }
    if ($Body -ne $null) {
        $args.Body = $Body
        $args.ContentType = $ContentType
    }
    if ($SkipCertificateCheck) {
        $args.SkipCertificateCheck = $true
    }
    Invoke-RestMethod @args
}

if (-not $NoCreateTag) {
    git rev-parse $Tag *> $null
    if ($LASTEXITCODE -ne 0) {
        Write-Step "创建本地 tag：$Tag"
        git tag -a $Tag $Target -m $Title
        if ($LASTEXITCODE -ne 0) {
            throw "创建 tag 失败"
        }
    }
}

if (-not $NoPushTag) {
    Write-Step "推送 tag：$Tag"
    git push origin $Tag
    if ($LASTEXITCODE -ne 0) {
        throw "推送 tag 失败"
    }
}

$release = $null
try {
    $release = Invoke-Gitea -Method Get -Uri (Api-Url "releases/tags/$Tag")
    Write-Step "Release 已存在：$Tag"
} catch {
    Write-Step "创建 Release：$Tag"
    $payload = @{
        tag_name = $Tag
        target_commitish = $Target
        name = $Title
        body = $Notes
        draft = $false
        prerelease = [bool]$Prerelease
    } | ConvertTo-Json -Depth 5
    $release = Invoke-Gitea -Method Post -Uri (Api-Url "releases") -Body $payload
}

foreach ($item in $Package) {
    $file = Get-Item -LiteralPath $item
    Write-Step "上传附件：$($file.Name)"
    $headers = @{ Authorization = "token $env:GITEA_TOKEN" }
    $uri = "$(Api-Url "releases/$($release.id)/assets")?name=$([uri]::EscapeDataString($file.Name))"
    $form = @{ attachment = $file }
    $args = @{
        Method = "Post"
        Uri = $uri
        Headers = $headers
        Form = $form
    }
    if ($SkipCertificateCheck) {
        $args.SkipCertificateCheck = $true
    }
    Invoke-RestMethod @args | Out-Null
}

Write-Host ""
Write-Host "Release 发布完成：$($GiteaUrl.TrimEnd('/'))/$Owner/$Repo/releases/tag/$Tag"