package service

import (
	"SciencesServer/app/api/enterprise/model"
	"SciencesServer/app/basic/controller"
	model2 "SciencesServer/app/common/model"
	"SciencesServer/app/session"
	"errors"
)

type Demand struct {
	*session.Enterprise
	tenantID uint64
}

type (
	// DemandInfo 需求信息
	DemandInfo struct {
		ID string `json:"id"`
		*model2.ServiceDemand
		Kinds []int `json:"kinds"`
	}
	// DemandParams 需求参数信息
	DemandParams struct {
		ID                               uint64
		Kinds                            []int
		IsSubmit                         int
		Title, Name, Mobile, Description string
	}
)

type DemandHandle func(session *session.Enterprise, tenantID uint64) *Demand

// List 列表信息
func (c *Demand) List(title string, status, page, pageSize int) (*controller.ReturnPages, error) {
	mServiceDemand := model.NewServiceDemand()

	where := []*model2.ModelWhereOrder{
		&model2.ModelWhereOrder{
			Where: model2.NewWhere("tenant_id", c.tenantID),
			Order: model2.NewOrder("id", model2.OrderModeToDesc),
		},
		&model2.ModelWhereOrder{Where: model2.NewWhere("uid", c.UID)},
		&model2.ModelWhereOrder{Where: model2.NewWhere("status", status)},
	}

	if title != "" {
		where = append(where, &model2.ModelWhereOrder{Where: model2.NewWhereLike("title", title)})
	}
	out := make([]*model2.ServiceDemand, 0)

	var count int64

	if err := model2.PagesFields(mServiceDemand.ServiceDemand, &out, []string{"id", "title", "kind", "name", "mobile",
		"status", "created_at"}, page, pageSize, &count, where...); err != nil {
		return nil, err
	}
	list := make([]*DemandInfo, 0)

	for _, v := range out {
		list = append(list, &DemandInfo{
			ID:            v.GetEncodeID(),
			ServiceDemand: v,
			Kinds:         v.GetKindAttribute(),
		})
	}
	return &controller.ReturnPages{Data: list, Count: count}, nil
}

// Detail 详细信息
func (c *Demand) Detail(id uint64) (*DemandInfo, error) {
	mServiceDemand := model.NewServiceDemand()
	mServiceDemand.ID = id

	isExist, err := model2.First(mServiceDemand.ServiceDemand)

	if err != nil {
		return nil, err
	} else if !isExist {
		return nil, errors.New("操作错误，需求信息不存在或已被删除")
	} else if mServiceDemand.UID != c.UID {
		return nil, errors.New("无权限操作")
	}
	return &DemandInfo{
		ID:            mServiceDemand.GetEncodeID(),
		ServiceDemand: mServiceDemand.ServiceDemand,
		Kinds:         mServiceDemand.GetKindAttribute(),
	}, nil
}

// Form 数据操作
func (c *Demand) Form(params *DemandParams) error {
	mServiceDemand := model.NewServiceDemand()

	if params.ID > 0 {
		mServiceDemand.ID = params.ID

		if isExist, err := model2.FirstField(mServiceDemand.ServiceDemand, []string{"id", "uid", "status", "created_at"}); err != nil {
			return err
		} else if !isExist {
			return errors.New("操作错误，需求信息不存在或已被删除")
		} else if mServiceDemand.UID != c.UID {
			return errors.New("无权限操作")
		} else if mServiceDemand.Status != model2.ServiceDemandStatusForDraft {
			return errors.New("操作错误，当前需求状态不允许修改")
		}
	}
	mServiceDemand.SetKindAttribute(params.Kinds)
	mServiceDemand.Title = params.Title
	mServiceDemand.Name = params.Name
	mServiceDemand.Mobile = params.Mobile
	mServiceDemand.Description = params.Description

	if mServiceDemand.ID > 0 {
		mServiceDemand.Status = model2.ServiceDemandStatusForPublish

		return model2.Updates(mServiceDemand.ServiceDemand, mServiceDemand.ServiceDemand)
	}
	mServiceDemand.TenantID = c.tenantID
	mServiceDemand.UID = c.UID

	if params.IsSubmit > 0 {
		mServiceDemand.Status = model2.ServiceDemandStatusForPublish
	}
	return model2.Create(mServiceDemand.ServiceDemand)
}

// Delete 删除操作
func (c *Demand) Delete(id uint64) error {
	mServiceDemand := model.NewServiceDemand()
	mServiceDemand.ID = id

	if isExist, err := model2.FirstField(mServiceDemand.ServiceDemand, []string{"id", "uid"}); err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，需求信息不存在或已被删除")
	} else if mServiceDemand.UID != c.UID {
		return errors.New("无权限操作")
	}
	return model2.Delete(mServiceDemand.ServiceDemand)
}

func NewDemand() DemandHandle {
	return func(session *session.Enterprise, tenantID uint64) *Demand {
		return &Demand{
			Enterprise: session,
			tenantID:   tenantID,
		}
	}
}