using Hcs.WebApp.Data.Hcs;
using Microsoft.EntityFrameworkCore;

namespace Hcs.WebApp.Services
{
    public class OperationService(IDbContextFactory<HcsDbContext> factory)
    {
        private readonly IDbContextFactory<HcsDbContext> factory = factory;

        public async Task<bool> HasActiveOperation(Operation.OperationType type)
        {
            using var context = factory.CreateDbContext();
            return await context.Operations.AnyAsync(x => x.Type == type && !x.EndedAt.HasValue);
        }

        public async Task<Operation> InitiateOperation(Operation.OperationType type, string initiatorId)
        {
            using var context = factory.CreateDbContext();
            var operation = new Operation()
            {
                Type = type,
                InitiatorId = initiatorId,
                StartedAt = DateTime.UtcNow
            };
            await context.Operations.AddAsync(operation);
            await context.SaveChangesAsync();
            return operation;
        }

        public async Task<IEnumerable<Operation>> GetInitiatedOperations()
        {
            using var context = factory.CreateDbContext();
            return await (from operation in context.Operations
                          where !operation.EndedAt.HasValue && string.IsNullOrEmpty(operation.MessageGuid)
                          select operation).ToListAsync();
        }

        public async Task SetOperationMessageGuid(int operationId, string messageGuid)
        {
            using var context = factory.CreateDbContext();
            var operation = await context.Operations.FirstOrDefaultAsync(x => x.Id == operationId);
            if (operation != null)
            {
                operation.MessageGuid = messageGuid;

                await context.SaveChangesAsync();
            }
        }
    }
}