using GymLogAI.Application.DTOs;
using GymLogAI.Application.Interfaces;
using GymLogAI.Core.Enums;

namespace GymLogAI.Application.Handlers;

public sealed class RecommendWorkoutHandler(
    IWorkoutRepository workoutRepository,
    IWorkoutRecommendationGenerator workoutRecommendationGenerator)
{
    public async Task<WorkoutRecommendationDto> HandleAsync(
        RecommendWorkoutCommand command,
        CancellationToken cancellationToken)
    {
        var history = await workoutRepository.GetHistoryAsync(command.UserId, cancellationToken);

        var context = new WorkoutRecommendationContext(
            command.UserId,
            command.GoalType,
            command.AdditionalContext);

        return await workoutRecommendationGenerator.GenerateAsync(context, history, cancellationToken);
    }
}

public sealed record RecommendWorkoutCommand(Guid UserId, GoalType GoalType, string? AdditionalContext);