using Newtonsoft.Json;
using System.Reflection;
using Brizco.Domain;

namespace Brizco.Core.EntityServices;

public class BrewService : IBrewService
{
    private readonly IMartenRepositoryWrapper _martenRepositoryWrapper;
    private readonly ICurrentUserService _currentUserService;

    public BrewService(IMartenRepositoryWrapper martenRepositoryWrapper,ICurrentUserService currentUserService)
    {
        _martenRepositoryWrapper = martenRepositoryWrapper;
        _currentUserService = currentUserService;
    }
    public async Task<object> GetLastBrewAsync(string recipeName, CancellationToken cancellationToken = default)
    {
        var type = Assembly.GetAssembly(typeof(DomainConfig))?.GetType($"Brizco.Domain.MartenEntities.Recipes.{recipeName}");
        if (type == null)
            throw new AppException("Recipe not found", ApiResultStatusCode.NotFound);
        if (_currentUserService.ComplexId == null)
            throw new BaseApiException(ApiResultStatusCode.BadRequest,"Complex id is null");
        if (!Guid.TryParse(_currentUserService.ComplexId, out Guid complexId))
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Complex id is wrong");
        
        var baseRecipe = await _martenRepositoryWrapper.SetRepository<BaseBrew>()
            .GetEntityAsync(s => s.ComplexId == complexId && s.Name == recipeName, cancellationToken);
        object? recipe;
        if (baseRecipe == null)
            recipe = Activator.CreateInstance(type);
        else
            recipe = JsonConvert.DeserializeObject(baseRecipe.CurrentBrewJson, type) ?? Activator.CreateInstance(type);

        if (recipe == null)
            throw new AppException("Recipe type or base is wrong");

        return recipe;
    }

    public async Task<BaseRecipeLDto> GetBrewAsync(string recipeName, CancellationToken cancellationToken = default)
    {
        var type = Assembly.GetAssembly(typeof(DomainConfig))?.GetType($"Brizco.Domain.MartenEntities.Recipes.{recipeName}");
        if (type == null)
            throw new AppException("Recipe not found", ApiResultStatusCode.NotFound);
        if (_currentUserService.ComplexId == null)
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Complex id is null");
        if (!Guid.TryParse(_currentUserService.ComplexId, out Guid complexId))
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Complex id is wrong");

        var baseRecipe = await _martenRepositoryWrapper.SetRepository<BaseBrew>()
            .GetEntityAsync(s =>s.ComplexId==complexId && s.Name == recipeName, cancellationToken);
        object? recipe;
        if (baseRecipe == null)
        {
            recipe = Activator.CreateInstance(type);
            baseRecipe = new BaseBrew();
        }
        else
            recipe = JsonConvert.DeserializeObject(baseRecipe.CurrentBrewJson, type) ?? Activator.CreateInstance(type);

        if (recipe == null)
            throw new AppException("Recipe type or base is wrong");

        var pastRecipes = new List<object>();
        foreach (var json in baseRecipe.PastBrewsJson)
        {
            var pastRecipe = JsonConvert.DeserializeObject(json, type) ?? Activator.CreateInstance(type);
            if (pastRecipe != null)
                pastRecipes.Add(pastRecipe);
        }

        var dto = new BaseRecipeLDto
        {
            CurrentRecipe = recipe,
            Name = recipeName,
            PastRecipes = pastRecipes
        };

        return dto;
    }

    public async Task AddBrewAsync(string recipeName, JsonDocument recipeObj, CancellationToken cancellationToken = default)
    {
        var type = Assembly.GetAssembly(typeof(DomainConfig))?.GetType($"Brizco.Domain.MartenEntities.Recipes.{recipeName}");
        if (type == null)
            throw new AppException("Recipe not found", ApiResultStatusCode.NotFound);

        if (_currentUserService.ComplexId == null)
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Complex id is null");
        if (!Guid.TryParse(_currentUserService.ComplexId, out Guid complexId))
            throw new BaseApiException(ApiResultStatusCode.BadRequest, "Complex id is wrong");

        var baseRecipe = await _martenRepositoryWrapper.SetRepository<BaseBrew>()
            .GetEntityAsync(s =>s.ComplexId == complexId && s.Name == recipeName, cancellationToken);

        if (baseRecipe == null)
        {
            baseRecipe = new BaseBrew()
            {
                CurrentBrewJson = JsonConvert.SerializeObject(recipeObj.Deserialize(type)),
                Name = recipeName,
                DotnetType = type.FullName ?? $"Brizco.Domain.MartenEntities.Recipes.{recipeName}",
                ComplexId = complexId
            };
        }
        else
        {
            baseRecipe.PastBrewsJson.Add(baseRecipe.CurrentBrewJson);
            baseRecipe.CurrentBrewJson = JsonConvert.SerializeObject(recipeObj.Deserialize(type));
        }

        await _martenRepositoryWrapper.SetRepository<BaseBrew>()
            .AddOrUpdateEntityAsync(baseRecipe, cancellationToken);
    }
}