using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
using LinqToDB;
using Volo.Abp.Domain.Entities;
using Win_in.Sfs.Wms.DataExchange.Domain.Fawtyg.Tyrp;

namespace Win_in.Sfs.Wms.DataExchange.Dapper.Fawtyg.Tyrp.Bases;

public abstract class Linq2DbCrudRepository<TEntity> : ILinq2DbRepository<TEntity>
    where TEntity : class, IEntity
{
    protected readonly TyrpDb TyrpDb;

    public Linq2DbCrudRepository(TyrpDb tyrpDb)
    {
        TyrpDb = tyrpDb;
    }

    public virtual async Task InsertAsync(TEntity entity)
    {
        await TyrpDb.InsertAsync(entity).ConfigureAwait(false);
    }

    public virtual async Task UpdateAsync(TEntity entity)
    {
        await TyrpDb.UpdateAsync(entity).ConfigureAwait(false);
    }

    public virtual async Task DeleteAsync(TEntity entity)
    {
        await TyrpDb.DeleteAsync(entity).ConfigureAwait(false);
    }

    public virtual async Task<TEntity> FirstOrDefaultAsync(Expression<Func<TEntity, bool>> expression)
    {
        var parts = await GetListFromDbAsync(expression).ConfigureAwait(false);
        return parts[0];
    }

    public virtual async Task<IEnumerable<TEntity>> GetListAsync(Expression<Func<TEntity, bool>> expression = null)
    {
        var parts = await GetListFromDbAsync(expression).ConfigureAwait(false);
        return parts;
    }

    private async Task<List<TEntity>> GetListFromDbAsync(Expression<Func<TEntity, bool>> expression)
    {
        var parts = await TyrpDb.GetTable<TEntity>().WhereIf(expression != null, expression).ToListAsync().ConfigureAwait(false);
        return parts;
    }

    public virtual async Task<long> CountAsync(Expression<Func<TEntity, bool>> expression)
    {
        return await TyrpDb.GetTable<TEntity>().CountAsync(expression).ConfigureAwait(false);
    }
}