<#
.SYNOPSIS
    Build, tag, and publish a release to Gitea.
.PARAMETER Version
    Version tag (e.g. "v2.0.0"). Required.
.PARAMETER Token
    Gitea API token. If not provided, reads from GITEA_TOKEN env var.
.EXAMPLE
    .\release.ps1 -Version v2.0.0
    .\release.ps1 -Version v2.1.0 -Token "your_token_here"
#>
param(
    [Parameter(Mandatory)][string]$Version,
    [string]$Token = $env:GITEA_TOKEN
)

$ErrorActionPreference = "Stop"

$GiteaUrl  = "https://git.azuze.fr"
$Repo      = "kawa/Sharepoint-Toolbox"
$Project   = "SharepointToolbox/SharepointToolbox.csproj"
$PublishDir = "publish"
$ZipName   = "SharePoint_Toolbox_$Version.zip"

# -- Validate --
if (-not $Token) {
    Write-Error "No token provided. Pass -Token or set GITEA_TOKEN env var."
    exit 1
}

if (git tag -l $Version) {
    Write-Error "Tag $Version already exists."
    exit 1
}

# -- Build --
Write-Host ""
Write-Host ">> Building Release..." -ForegroundColor Cyan
dotnet publish $Project -c Release -p:PublishSingleFile=true -o $PublishDir
if ($LASTEXITCODE -ne 0) { exit 1 }

# -- Package --
Write-Host ""
Write-Host ">> Packaging $ZipName..." -ForegroundColor Cyan
$staging = "release_staging"
if (Test-Path $staging) { Remove-Item $staging -Recurse -Force }
New-Item -ItemType Directory -Path $staging | Out-Null
New-Item -ItemType Directory -Path "$staging/examples" | Out-Null

Copy-Item "$PublishDir/SharepointToolbox.exe" "$staging/"
Copy-Item "SharepointToolbox/Resources/*.csv" "$staging/examples/"

if (Test-Path $ZipName) { Remove-Item $ZipName }
Compress-Archive -Path "$staging/*" -DestinationPath $ZipName
Remove-Item $staging -Recurse -Force

$zipSize = [math]::Round((Get-Item $ZipName).Length / 1MB, 1)
Write-Host "   Created $ZipName ($zipSize MB)" -ForegroundColor Green

# -- Tag and Push --
Write-Host ""
Write-Host ">> Tagging $Version and pushing..." -ForegroundColor Cyan
git tag $Version
git push kawa main --tags

# -- Create Release --
Write-Host ""
Write-Host ">> Creating Gitea release..." -ForegroundColor Cyan

$releaseBody = ""

$jsonObj = @{ tag_name = $Version; name = "SharePoint Toolbox $Version"; body = $releaseBody }
$jsonPath = [System.IO.Path]::GetTempFileName()
$utf8NoBom = New-Object System.Text.UTF8Encoding($false)
[System.IO.File]::WriteAllText($jsonPath, ($jsonObj | ConvertTo-Json -Depth 3), $utf8NoBom)

$releaseJson = curl.exe -s -w "`n%{http_code}" -X POST "$GiteaUrl/api/v1/repos/$Repo/releases" -H "Authorization: token $Token" -H "Content-Type: application/json" -d "@$jsonPath"
Remove-Item $jsonPath

$lines = $releaseJson -split "`n"
$httpCode = $lines[-1]
$responseBody = ($lines[0..($lines.Length-2)] -join "`n")

if ($httpCode -ne "201") {
    Write-Host "   HTTP $httpCode - $responseBody" -ForegroundColor Red
    Write-Error "Release creation failed."
    exit 1
}

$releaseId = ($responseBody | ConvertFrom-Json).id
Write-Host "   Release created (ID: $releaseId)" -ForegroundColor Green

# -- Upload Asset --
Write-Host ""
Write-Host ">> Uploading $ZipName..." -ForegroundColor Cyan
$uploadUrl = "$GiteaUrl/api/v1/repos/$Repo/releases/$releaseId/assets"

curl.exe -sf -X POST $uploadUrl -H "Authorization: token $Token" -F "attachment=@$ZipName" | Out-Null

if ($LASTEXITCODE -ne 0) {
    Write-Error "Asset upload failed."
    exit 1
}

# -- Cleanup --
Remove-Item $ZipName
Remove-Item $PublishDir -Recurse -Force

Write-Host ""
Write-Host ">> Done! Release published at:" -ForegroundColor Green
Write-Host "   $GiteaUrl/$Repo/releases/tag/$Version" -ForegroundColor Yellow