using System.Management.Automation;
using NozCli.Core.Client;

namespace Noz.PowerShell.Cmdlets;

[Cmdlet(VerbsCommon.Add, "NozLink", SupportsShouldProcess = true)]
public sealed class AddNozLinkCmdlet : NozCmdletBase
{
    [Parameter(Mandatory = true, Position = 0, ValueFromPipelineByPropertyName = true)]
    public string Source { get; set; } = "";

    [Parameter(Mandatory = true, Position = 1)]
    public string Target { get; set; } = "";

    [Parameter]
    public SwitchParameter Both { get; set; }

    [Parameter]
    public string Section { get; set; } = "Siehe auch";

    protected override void ProcessRecord()
    {
        if (!ShouldProcess(Source, $"Add-NozLink → {Target}")) return;

        LinkOne(Source, Target);
        if (Both) LinkOne(Target, Source);
    }

    private void LinkOne(string source, string target)
    {
        var note    = Run(Api.GetNoteAsync(source));
        var updated = NoteLinkHelper.AddLink(note.Markdown, target, Section);

        if (updated == note.Markdown)
        {
            WriteVerbose($"{source} → {target}: bereits verlinkt.");
            return;
        }

        Run(Api.PutNoteAsync(source, updated));
        WriteVerbose($"{source} → {target}: verlinkt.");
    }
}