using NeonSprawl.Server.Game.Items;
using NeonSprawl.Server.Game.PositionState;

namespace NeonSprawl.Server.Game.Quests;

/// <summary>Maps <c>POST /game/players/{{id}}/quests/{{questId}}/accept</c> (NEO-120).</summary>
public static class QuestAcceptApi
{
    public static WebApplication MapQuestAcceptApi(this WebApplication app)
    {
        app.MapPost(
            "/game/players/{id}/quests/{questId}/accept",
            (string id, string questId, QuestAcceptRequest? body, IPositionStateStore positions,
                IQuestDefinitionRegistry questRegistry, IPlayerQuestStateStore progressStore,
                IPlayerInventoryStore inventoryStore, IItemDefinitionRegistry itemRegistry,
                TimeProvider timeProvider) =>
            {
                if (body is not null &&
                    body.SchemaVersion != 0 &&
                    body.SchemaVersion != QuestAcceptRequest.CurrentSchemaVersion)
                {
                    return Results.BadRequest();
                }

                var trimmedId = id.Trim();
                if (trimmedId.Length == 0 || !positions.TryGetPosition(trimmedId, out _))
                {
                    return Results.NotFound();
                }

                var result = QuestStateOperations.TryAccept(
                    trimmedId,
                    questId,
                    questRegistry,
                    progressStore,
                    inventoryStore,
                    itemRegistry,
                    timeProvider);

                return Results.Json(MapResponse(result));
            });

        return app;
    }

    internal static QuestAcceptResponse MapResponse(QuestStateOperationResult result)
    {
        QuestProgressRowJson? quest = null;
        if (result.Snapshot is { } snapshot)
        {
            quest = QuestProgressApi.MapQuestProgressRow(snapshot);
        }

        return new QuestAcceptResponse
        {
            Accepted = result.Success,
            ReasonCode = result.ReasonCode,
            Quest = quest,
        };
    }
}