package dict

import (
	consts "cid/consts/api-feature"
	"cid/dao/dict"
	dto "cid/model/dto/dict"
	entity "cid/model/entity/dict"
	"context"
	"errors"
)

type apiInterfaceService struct{}

// ApiInterface 接口服务
var ApiInterface = new(apiInterfaceService)

// Create 创建接口
func (s *apiInterfaceService) Create(ctx context.Context, req *dto.CreateApiInterfaceReq) (res *dto.CreateApiInterfaceRes, err error) {
	_, err = DatasourcePlatform.GetOne(ctx, &dto.GetDatasourcePlatformReq{Id: req.PlatformId})
	if err != nil {
		return nil, errors.New("平台不存在")
	}

	// 检查接口编码在同一平台下是否重复
	interfaces, _, err := dict.ApiInterface.List(ctx, &dto.ListApiInterfaceReq{
		PlatformId: req.PlatformId,
		Code:       req.Code,
	})
	if err != nil {
		return
	}
	if len(interfaces) > 0 {
		return nil, errors.New("接口编码在该平台下已存在")
	}

	// 插入数据库
	id, err := dict.ApiInterface.Insert(ctx, req)
	if err != nil {
		return
	}
	res = &dto.CreateApiInterfaceRes{
		Id: id,
	}
	return
}

// List 获取接口列表
func (s *apiInterfaceService) List(ctx context.Context, req *dto.ListApiInterfaceReq) (res *dto.ListApiInterfaceRes, err error) {
	apiList, total, err := dict.ApiInterface.List(ctx, req)
	if err != nil {
		return
	}

	platformIds := make([]int64, 0)
	for _, item := range apiList {
		if item.PlatformId > 0 {
			platformIds = append(platformIds, item.PlatformId)
		}
	}

	platformMap := make(map[int64]string)
	if len(platformIds) > 0 {
		res, err := DatasourcePlatform.List(ctx, &dto.ListDatasourcePlatformReq{})
		if err == nil && res != nil {
			for _, p := range res.List {
				platformMap[p.Id] = p.PlatformName
			}
		}
	}

	list := make([]dto.ApiInterfaceItem, 0, len(apiList))
	for _, item := range apiList {
		platformName := ""
		if name, ok := platformMap[item.PlatformId]; ok {
			platformName = name
		}

		list = append(list, dto.ApiInterfaceItem{
			Id:           item.Id,
			PlatformId:   item.PlatformId,
			PlatformName: platformName,
			Name:         item.Name,
			Code:         item.Code,
			Url:          item.Url,
			Method:       item.Method,
			Status:       item.Status,
			StatusName:   s.getStatusName(item.Status),
			CreatedAt:    item.CreatedAt.Unix(),
			UpdatedAt:    item.UpdatedAt.Unix(),
		})
	}

	res = &dto.ListApiInterfaceRes{
		List:  list,
		Total: total,
	}
	return
}

// GetOne 获取单个接口
func (s *apiInterfaceService) GetOne(ctx context.Context, req *dto.GetApiInterfaceReq) (res *dto.GetApiInterfaceRes, err error) {
	apiInterface, err := dict.ApiInterface.GetOne(ctx, req)
	if err != nil {
		return
	}

	var platformName string
	if apiInterface.PlatformId > 0 {
		platform, _ := DatasourcePlatform.GetOne(ctx, &dto.GetDatasourcePlatformReq{Id: apiInterface.PlatformId})
		if platform != nil {
			platformName = platform.PlatformName
		}
	}

	return &dto.GetApiInterfaceRes{
		ApiInterface: apiInterface,
		PlatformName: platformName,
	}, nil
}

// Update 更新接口
func (s *apiInterfaceService) Update(ctx context.Context, req *dto.UpdateApiInterfaceReq) (err error) {
	exist, err := dict.ApiInterface.GetOne(ctx, &dto.GetApiInterfaceReq{Id: req.Id})
	if err != nil || exist == nil {
		return errors.New("接口不存在")
	}

	if req.PlatformId > 0 && req.PlatformId != exist.PlatformId {
		_, err := DatasourcePlatform.GetOne(ctx, &dto.GetDatasourcePlatformReq{Id: req.PlatformId})
		if err != nil {
			return errors.New("平台不存在")
		}
	}

	if req.Code != "" && req.Code != exist.Code {
		platformId := req.PlatformId
		if platformId == 0 {
			platformId = exist.PlatformId
		}
		interfaces, _, err := dict.ApiInterface.List(ctx, &dto.ListApiInterfaceReq{
			PlatformId: platformId,
			Code:       req.Code,
		})
		if err != nil {
			return err
		}
		if len(interfaces) > 0 {
			return errors.New("接口编码在该平台下已存在")
		}
	}

	_, err = dict.ApiInterface.Update(ctx, req)
	return
}

// UpdateStatus 更新接口状态
func (s *apiInterfaceService) UpdateStatus(ctx context.Context, req *dto.UpdateApiInterfaceStatusReq) (err error) {
	_, err = dict.ApiInterface.UpdateStatus(ctx, req.Id, req.Status.String())
	return
}

// Delete 删除接口
func (s *apiInterfaceService) Delete(ctx context.Context, req *dto.DeleteApiInterfaceReq) (err error) {
	_, err = dict.ApiInterface.Delete(ctx, req)
	return
}

// GetByIds 根据ID列表获取接口
func (s *apiInterfaceService) GetByIds(ctx context.Context, ids []int64) (res []entity.ApiInterface, err error) {
	return dict.ApiInterface.GetByIds(ctx, ids)
}

// getStatusName 获取状态名称
func (s *apiInterfaceService) getStatusName(status consts.PlatformStatus) string {
	statusNames := map[consts.PlatformStatus]string{
		consts.PlatformStatusActive:   "启用",
		consts.PlatformStatusInactive: "停用",
	}
	if name, ok := statusNames[status]; ok {
		return name
	}
	return string(status)
}