using System;
using System.Threading;
using OpenNest.Engine.Jobs;

namespace OpenNest.Engine.__NAME__;

/// <summary>
/// TODO: name and describe the actual placement strategy here (e.g. "skyline packer with
/// greedy shelf assignment", "NFP-based sliding placement with simulated-annealing order
/// search", etc). This must be an independently designed algorithm — see README.md.
/// </summary>
public sealed class __NAME__NestingEngine : INestingEngine
{
    public NestJobResult Solve(
        NestJob job,
        IProgress<NestJobProgress>? progress = null,
        CancellationToken token = default
    )
    {
        ArgumentNullException.ThrowIfNull(job);
        token.ThrowIfCancellationRequested();

        // TODO: implement independent placement logic here.
        //
        // Do NOT call NestingEngineRegistry.Create(...), PlateNesterFactory, PlateFillService,
        // or any built-in INestingEngine, and do not run several and keep the best. The
        // Fill/ and pattern components (FillLinear, PairFiller, PatternTiler, Compactor, ...)
        // and OpenNest.Core geometry ARE fair game as tools; the decisions are yours.
        //
        // job.Parts    -> requested parts (PartGeometrySnapshot geometry, quantity, priority, rotation policy)
        // job.Plates   -> candidate stock sheets (size, spacing, edge spacing, quadrant, quantity)
        // job.Options  -> job-wide options
        //
        // Read material with JobPartGeometry.TryRead(part.Geometry); use stock.WorkArea/Fits,
        // RotationCandidates.ForShape and NestJobCost as primitives for your own decisions.
        // var result = new NestJobResultBuilder(job, progress);
        // result.AddSheet(stock, poses); // (PartId, X, Y, Rotation); call only on commit.
        // return result.Build(NestJobStopReason.NoPlacementFound);
        // The builder assigns sheet/instance indices, fulfillment, usage and commit progress.

        throw new NotImplementedException("__NAME__ nesting engine placement logic not yet implemented.");
    }
}