using Core.Blueprint.DAL.SQLServer;
using Core.Blueprint.DAL.SQLServer.Context;
using Core.Blueprint.DAL.SQLServer.Contracts;
using Core.Blueprint.DAL.SQLServer.Entities;
using Core.Blueprint.DAL.SQLServer.Entities.Request;
using Core.Blueprint.Redis;
using Core.Blueprint.Redis.Helpers;
using Mapster;

public class SqlSampleService : ISqlSampleService
{
    private readonly IEntityRepository<Sample, SqlServerContext> _sqlSampleRepository;
    private readonly ICacheSettings cacheSettings;
    private readonly IRedisCacheProvider cacheProvider;

    public SqlSampleService(IEntityRepository<Sample, SqlServerContext> sqlSampleRepository, IRedisCacheProvider cacheProvider, ICacheSettings cacheSettings)
    {
        _sqlSampleRepository = sqlSampleRepository;
        this.cacheSettings = cacheSettings;
        this.cacheProvider = cacheProvider;
    }

    public async Task<IEnumerable<Sample>> GetAllSamples()
    {
        var cacheKey = CacheKeyHelper.GenerateCacheKey(this, "GetAllSamples");
        var cachedData = await cacheProvider.GetAsync<IEnumerable<Sample>>(cacheKey) ?? [];

        if (cachedData.Any()) return cachedData;

        var samples = await _sqlSampleRepository.GetAllAsync();

        await cacheProvider.SetAsync(cacheKey, samples, TimeSpan.FromMinutes(cacheSettings.DefaultCacheDurationInMinutes));

        return samples;
    }

    public async Task<Sample?> GetSampleById(int id)
    {
        var cacheKey = CacheKeyHelper.GenerateCacheKey(this, "GetSampleById", id);
        var cachedData = await cacheProvider.GetAsync<Sample>(cacheKey);

        if (cachedData is not null) { return cachedData; }

        var sample = await _sqlSampleRepository.GetByIdAsync(id);

        await cacheProvider.SetAsync(cacheKey, sample, TimeSpan.FromMinutes(cacheSettings.DefaultCacheDurationInMinutes));

        return sample;
    }

    public async Task<Sample> AddSample(SampleRequest newSample)
    {
        var sample = newSample.Adapt<Sample>();

        await _sqlSampleRepository.AddAsync(sample);
        await _sqlSampleRepository.SaveAsync();
        return sample;
    }

    public async Task<Sample?> UpdateSample(Sample sample)
    {
        var existingEntity = await _sqlSampleRepository.GetByIdAsync(sample.Id);

        if (existingEntity is null) return existingEntity;

        _sqlSampleRepository.Update(sample);
        await _sqlSampleRepository.SaveAsync();
        return sample;
    }

    public async Task<Sample?> DeleteSample(int id)
    {
        var sample = await _sqlSampleRepository.GetByIdAsync(id);
        if (sample == null)
            return null;

        _sqlSampleRepository.Delete(sample);
        await _sqlSampleRepository.SaveAsync();
        return sample;
    }
}