using Apimanager_backend.Data;
using Apimanager_backend.Dtos;
using Apimanager_backend.Exceptions;
using Apimanager_backend.Models;
using AutoMapper;
using Microsoft.EntityFrameworkCore;

namespace Apimanager_backend.Services
{
    public class ApiService:IApiService
    {
        private readonly ApiContext context;
        private readonly ILogger<ApiService> logger;
        private readonly IMapper mapper;
        public ApiService(ApiContext context, ILogger<ApiService> logger,IMapper mapper)
        {
            this.context = context;
            this.logger = logger;
            this.mapper = mapper;
        }
        #region 添加接口
        public async Task<ApiInfoDto> AddApiAsync(CreateApiInfo dto)
        {
            var api = mapper.Map<Api>(dto);
            context.Apis.Add(api);
            await context.SaveChangesAsync();
            return mapper.Map<ApiInfoDto>(api);
        }
        #endregion
        #region 删除api
        public async Task DeleteApiAsync(int apiId)
        {
            var api = await context.Apis.FirstOrDefaultAsync(x => x.Id == apiId);
            if (api == null)
            {
                throw new BaseException(3002, "API不存在");
            }
            api.IsDelete = true;
            context.Apis.Update(api);
            await context.SaveChangesAsync();
        }
        #endregion
        #region 查询api信息
        public async Task<ApiInfoDto> GetApiInfoAsync(int apiId)
        {
            var apiInfo = await context.Apis.FirstOrDefaultAsync(x => x.Id == apiId);
            if (apiInfo == null)
            {
                throw new BaseException(3002,"API不存在");
            }
            return mapper.Map<ApiInfoDto>(apiInfo);
        }
        #endregion
        #region 禁用api
        public async Task OffApiAsync(int apiId)
        {
            var api = await context.Apis.FirstOrDefaultAsync(x => x.Id == apiId);
            if (api == null)
            {
                throw new BaseException(3002, "API不存在");
            }
            api.IsActive = false;
            context.Apis.Update(api);
            await context.SaveChangesAsync();
        }
        #endregion
        #region 启用API
        public async Task OnApiAsync(int apiId)
        {
            var api = await context.Apis.FirstOrDefaultAsync(x => x.Id == apiId);
            if (api == null)
            {
                throw new BaseException(3002, "API不存在");
            }
            api.IsActive = true;
            context.Apis.Update(api);
            await context.SaveChangesAsync();
        }
        #endregion
        #region 更新接口信息
        public async Task<ApiInfoDto> UpdateApiAsync(int apiId, UpdateApiDto dto)
        {
            var api = await context.Apis.FirstOrDefaultAsync(x => x.Id == apiId);
            if(api == null)
            {
                throw new BaseException(3002, "API不存在");
            }
            api.Name = dto.Name ?? api.Name;
            api.Description = dto.Description ?? api.Description;
            api.Endpoint = dto.Endpoint ?? api.Endpoint;
            api.Method = dto.Method ?? api.Method;
            api.PackageId = dto.PackageId ?? api.PackageId;
            context.Apis.Update(api);
            await context.SaveChangesAsync();
            return mapper.Map<ApiInfoDto>(api);
        }
        #endregion
        #region 获取API列表
        public async Task<List<ApiInfoDto>> GetApisAsync(int pageIndex, int pageSize, bool desc)
        {
            IQueryable<Api> query = context.Apis.Where(x => true).OrderBy(x => x.Id);
            //倒序
            if (desc)
            {
                query.OrderDescending();
            }
            //分页
            query = query.Skip((pageIndex - 1) * pageSize).Take(pageSize);
            var list = await query.ToListAsync();
            return mapper.Map<List<ApiInfoDto>>(list);
        }
        #endregion
        #region 获取Api总数
        public async Task<int> ApiCountAsync()
        {
            return await context.Apis.CountAsync();
        }
        #endregion
    }
}