# Builds a Cursor MCP install deeplink.
# config = base64(JSON.stringify({command, args, ...}))  -- transport only
# name  = server key (separate query param)
# Wrapping as { serverName: transport } makes Cursor show command: "".
# Usage: . scripts\cursor-deeplink.ps1; New-CursorDeeplink -ServerName wordcraft -Config @{ command='...'; args=@('mcp') }
param(
    [string]$Name,
    [string]$ConfigJson
)
. (Join-Path $PSScriptRoot 'lib.ps1')

function New-CursorDeeplink([string]$ServerName, $Config) {
    $command = $null
    $argList = @()
    $extra = @{}

    if ($Config -is [string]) {
        $Config = $Config | ConvertFrom-Json
    }

    if ($Config -is [hashtable]) {
        if ($Config.ContainsKey($ServerName) -and $Config[$ServerName] -is [hashtable]) {
            $Config = $Config[$ServerName]
        }
        $command = [string]$Config['command']
        if ($Config.ContainsKey('args')) { $argList = @($Config['args']) }
        foreach ($k in $Config.Keys) {
            if ($k -ne 'command' -and $k -ne 'args') { $extra[$k] = $Config[$k] }
        }
    }
    else {
        # PSCustomObject
        $props = @($Config.PSObject.Properties.Name)
        if ($props.Count -eq 1 -and $props[0] -eq $ServerName) {
            $Config = $Config.$ServerName
            $props = @($Config.PSObject.Properties.Name)
        }
        $command = [string]$Config.command
        if ($null -ne $Config.args) { $argList = @($Config.args) }
        foreach ($p in $Config.PSObject.Properties) {
            if ($p.Name -ne 'command' -and $p.Name -ne 'args') { $extra[$p.Name] = $p.Value }
        }
    }

    # Forward slashes: valid on Windows, safer through JSON/URL pipelines.
    if ($command -match '^[A-Za-z]:\\') {
        $command = $command -replace '\\', '/'
    }

    $transport = [ordered]@{ command = $command; args = @($argList) }
    foreach ($k in $extra.Keys) { $transport[$k] = $extra[$k] }

    $jsonPath = [IO.Path]::GetTempFileName()
    try {
        # Write via .NET so Python can re-dump with JSON.stringify-compatible compact form.
        $psJson = ($transport | ConvertTo-Json -Compress -Depth 20)
        [IO.File]::WriteAllText($jsonPath, $psJson, $Utf8NoBom)
        $json = & python -c "import json,sys; print(json.dumps(json.load(open(sys.argv[1],encoding='utf-8')),separators=(',',':'),ensure_ascii=False))" $jsonPath
        if (-not $json) { $json = $psJson }
    }
    finally {
        Remove-Item -LiteralPath $jsonPath -Force -ErrorAction SilentlyContinue
    }

    $bytes = $Utf8NoBom.GetBytes($json)
    $b64 = [Convert]::ToBase64String($bytes).TrimEnd('=').Replace('+', '-').Replace('/', '_')
    return "cursor://anysphere.cursor-deeplink/mcp/install?name=$([Uri]::EscapeDataString($ServerName))&config=$b64"
}

if ($Name -and $ConfigJson) {
    Write-Output (New-CursorDeeplink -ServerName $Name -Config $ConfigJson)
}