package controller

import (
	"SciencesServer/app/api/manage/controller"
	"SciencesServer/app/api/website/model"
	model2 "SciencesServer/app/common/model"
	"SciencesServer/app/session"
	"SciencesServer/config"
	"errors"
	"gorm.io/gorm"
	"time"
)

type Service struct {
	*session.Enterprise
	local string
}

type ServiceHandle func(session *session.Enterprise, local string) *Service

type (
	// ServiceSolutionCase 服务解决方案案例信息
	ServiceSolutionCase struct {
		ID       string                         `json:"id"`
		MarkID   uint64                         `json:"-"`
		Kind     model2.ServiceSolutionCaseKind `json:"kind"`
		Title    string                         `json:"title"`
		Image    string                         `json:"image"`
		Children []*ServiceSolutionCaseInfo     `json:"children"`
	}
	// ServiceSolutionCaseInfo 基本信息
	ServiceSolutionCaseInfo struct {
		ID          string `json:"id"`
		Title       string `json:"title"`
		Image       string `json:"image"`
		Description string `json:"description"`
	}
	// ServiceSolutionCaseDetail 详细信息
	ServiceSolutionCaseDetail struct {
		ServiceSolutionCaseInfo
		Visits    int       `json:"visits"`
		Content   string    `json:"content"`
		CreatedAt time.Time `json:"created_at"`
	}
)

// SolutionCase 服务解决方案案例
func (c *Service) SolutionCase() ([]*ServiceSolutionCase, error) {
	mServiceSolutionCase := model.NewServiceSolutionCase()
	out, err := mServiceSolutionCase.SolutionCase(2)

	if err != nil {
		return nil, err
	}
	ret := make([]*ServiceSolutionCase, 0)

	for _, v := range out {
		isExist := false

		detail := &ServiceSolutionCaseInfo{
			ID: (&model2.Model{ID: v.DetailID}).GetEncodeID(), Title: v.DetailTitle,
			Image:       (&model2.Image{Image: v.DetailImage}).Analysis(config.SettingInfo.Domain),
			Description: v.DetailDescription,
		}
		for _, val := range ret {
			if v.ID == val.MarkID {
				val.Children = append(val.Children, detail)
				isExist = true
				break
			}
		}
		if !isExist {
			ret = append(ret, &ServiceSolutionCase{
				ID:       v.GetEncodeID(),
				MarkID:   v.ID,
				Kind:     v.Kind,
				Title:    v.Title,
				Image:    v.Image.Analysis(config.SettingInfo.Domain),
				Children: []*ServiceSolutionCaseInfo{detail},
			})
		}
	}
	return ret, nil
}

// SolutionCaseList 列表信息
func (c *Service) SolutionCaseList(id uint64, page, pageSize int) (*controller.ReturnPages, error) {
	mServiceSolutionCaseDetail := model.NewServiceSolutionCaseDetail()

	out := make([]*model2.ServiceSolutionCaseDetail, 0)

	var count int64

	err := model2.PagesFields(mServiceSolutionCaseDetail.ServiceSolutionCaseDetail, &out, []string{"id", "title",
		"image", "description"}, page, pageSize, &count,
		&model2.ModelWhereOrder{
			Where: model2.NewWhere("solution_case_id", id),
			Order: model2.NewOrder("sort", model2.OrderModeToDesc),
		}, &model2.ModelWhereOrder{
			Order: model2.NewOrder("id", model2.OrderModeToDesc),
		})
	if err != nil {
		return nil, err
	}
	list := make([]*ServiceSolutionCaseInfo, 0)

	for _, v := range out {
		list = append(list, &ServiceSolutionCaseInfo{
			ID:          v.GetEncodeID(),
			Title:       v.Title,
			Image:       v.Image.Analysis(config.SettingInfo.Domain),
			Description: v.Description,
		})
	}
	return &controller.ReturnPages{Data: list, Count: count}, nil
}

// SolutionCaseDetail 详细信息
func (c *Service) SolutionCaseDetail(id uint64) (*ServiceSolutionCaseDetail, error) {
	mServiceSolutionCaseDetail := model.NewServiceSolutionCaseDetail()
	mServiceSolutionCaseDetail.ID = id

	if isExist, err := model2.FirstField(mServiceSolutionCaseDetail.ServiceSolutionCaseDetail, []string{"id", "title",
		"image", "description", "content", "visits", "created_at"}); err != nil {
		return nil, err
	} else if !isExist {
		return nil, errors.New("操作错误，服务解决案例信息不存在或已被删除")
	}
	_ = model2.Updates(mServiceSolutionCaseDetail.ServiceSolutionCaseDetail, map[string]interface{}{
		"visits": gorm.Expr("visits + ?", 1), "updated_at": time.Now(),
	})
	return &ServiceSolutionCaseDetail{
		ServiceSolutionCaseInfo: ServiceSolutionCaseInfo{
			ID:          mServiceSolutionCaseDetail.GetEncodeID(),
			Title:       mServiceSolutionCaseDetail.Title,
			Image:       mServiceSolutionCaseDetail.Image.Analysis(config.SettingInfo.Domain),
			Description: mServiceSolutionCaseDetail.Description,
		},
		Visits:    mServiceSolutionCaseDetail.Visits,
		Content:   mServiceSolutionCaseDetail.Content,
		CreatedAt: mServiceSolutionCaseDetail.CreatedAt,
	}, nil
}

func NewService() ServiceHandle {
	return func(session *session.Enterprise, local string) *Service {
		return &Service{
			Enterprise: session,
			local:      local,
		}
	}
}