using System.Collections.Generic;
using System.Threading.Tasks;

namespace Kean.Application.Utilities.Interfaces
{
    /// <summary>
    /// 表示增删改查通用服务
    /// </summary>
    public interface ICrudService
    {
        /// <summary>
        /// 获取记录数量
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="parameters">查询参数</param>
        /// <returns>结果</returns>
        Task<int> GetCount(string type, IDictionary<string, string> parameters);

        /// <summary>
        /// 获取记录列表
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="parameters">查询参数</param>
        /// <param name="sort">排序</param>
        /// <param name="offset">偏移</param>
        /// <param name="limit">限制</param>
        /// <returns>结果视图</returns>
        Task<IEnumerable<object>> GetList(string type, IDictionary<string, string> parameters, string sort, int? offset, int? limit);

        /// <summary>
        /// 获取记录项
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="id">标识</param>
        /// <returns>结果</returns>
        Task<object> GetItem(string type, string id);

        /// <summary>
        /// 创建记录
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="values">数据值</param>
        /// <returns>标识</returns>
        Task<object> Create(string type, IDictionary<string, string> values);

        /// <summary>
        /// 修改记录
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="id">标识</param>
        /// <param name="values">数据值</param>
        Task Modify(string type, string id, IDictionary<string, string> values);

        /// <summary>
        /// 删除记录
        /// </summary>
        /// <param name="type">记录类型</param>
        /// <param name="id">标识</param>
        Task Delete(string type, IEnumerable<string> id);
    }
}