using System.Management.Automation;
using System.Text.RegularExpressions;

namespace Noz.PowerShell.Cmdlets;

[Cmdlet(VerbsCommon.Set, "NozNoteStatus", SupportsShouldProcess = true)]
[OutputType(typeof(NozNote))]
public sealed partial class SetNozNoteStatusCmdlet : NozCmdletBase
{
    [Parameter(Mandatory = true, Position = 0, ValueFromPipelineByPropertyName = true)]
    public string Slug { get; set; } = "";

    [Parameter(Mandatory = true, Position = 1)]
    [ValidateSet("seed", "budding", "evergreen")]
    public string Status { get; set; } = "";

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

    [GeneratedRegex(@"(?m)^(status:\s*)(?:seed|budding|evergreen)(\s*)$")]
    private static partial Regex StatusPattern();

    protected override void ProcessRecord()
    {
        var content = Run(Api.GetNoteAsync(Slug));

        var patched = StatusPattern().Replace(content.Markdown, $"$1{Status}$2");

        if (patched == content.Markdown)
        {
            WriteVerbose($"{Slug}: status is already '{Status}', no change.");
            if (PassThru) WriteObject(Run(Api.GetNotesAsync()).Find(n => n.Slug == Slug) is { } n
                ? NozNote.From(n) : null);
            return;
        }

        if (!ShouldProcess(Slug, $"Set status → {Status}")) return;

        Run(Api.PutNoteAsync(Slug, patched));
        WriteVerbose($"{Slug}: status updated to '{Status}'.");

        if (PassThru)
        {
            var notes = Run(Api.GetNotesAsync());
            var updated = notes.Find(n => n.Slug == Slug);
            if (updated is not null) WriteObject(NozNote.From(updated));
        }
    }
}