package technology

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

type Topic struct {
	*session.Enterprise
	tenantID uint64
}

type TopicHandle func(session *session.Enterprise, tenantID uint64) *Topic

type (
	// TopicInfo 课题信息
	TopicInfo struct {
		ID        string                     `json:"id"`
		Title     string                     `json:"title"`
		Kind      model2.TechnologyTopicKind `json:"kind"`
		Keywords  []string                   `json:"keywords"`
		CreatedAt time.Time                  `json:"created_at"`
	}
	// TopicDetailInfo 课题详细信息
	TopicDetailInfo struct {
		ID string `json:"id"`
		*model2.TechnologyTopic
		Keywords []string `json:"keywords"`
	}
	// TopicParams 课题参数信息
	TopicParams struct {
		ID                                               uint64
		Title, Emcee, Mechanism, Code, BeginAt, FinishAt string
		Amount                                           float64
		Source, Kind                                     int
		Keywords                                         []string
	}
)

// List 列表信息
func (c *Topic) List(status int, page, pageSize int) (*controller.ReturnPages, error) {
	mTechnologyTopic := model.NewTechnologyTopic()

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

	var count int64

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

	if err := model2.PagesFields(mTechnologyTopic.TechnologyTopic, &out, []string{"id", "title", "kind", "keyword", "created_at"},
		page, pageSize, &count, where...); err != nil {
		return nil, err
	}
	list := make([]*TopicInfo, 0)

	for _, v := range out {
		list = append(list, &TopicInfo{
			ID: v.GetEncodeID(), Title: v.Title, Kind: v.Kind, Keywords: v.GetKeywordAttribute(),
			CreatedAt: v.CreatedAt,
		})
	}
	return &controller.ReturnPages{Data: list, Count: count}, nil
}

// Detail 详细信息
func (c *Topic) Detail(id uint64) (*TopicDetailInfo, error) {
	mTechnologyTopic := model.NewTechnologyTopic()
	mTechnologyTopic.ID = id

	isExist, err := model2.First(mTechnologyTopic.TechnologyTopic)

	if err != nil {
		return nil, err
	} else if !isExist {
		return nil, errors.New("操作错误，课题信息不存在")
	}
	return &TopicDetailInfo{
		ID: mTechnologyTopic.GetEncodeID(), TechnologyTopic: mTechnologyTopic.TechnologyTopic,
		Keywords: mTechnologyTopic.GetKeywordAttribute(),
	}, nil
}

// Form 数据处理
func (c *Topic) Form(params *TopicParams) error {
	mTechnologyTopic := model.NewTechnologyTopic()

	if params.ID > 0 {
		mTechnologyTopic.ID = params.ID
		isExist, err := model2.FirstField(mTechnologyTopic.TechnologyTopic, []string{"id", "uid", "status"})

		if err != nil {
			return err
		} else if !isExist {
			return errors.New("操作错误，课题信息不存在")
		} else if mTechnologyTopic.UID != c.UID {
			return errors.New("无权限操作")
		} else if mTechnologyTopic.Status != model2.TechnologyTopicStatusForDraft &&
			mTechnologyTopic.Status != model2.TechnologyTopicStatusForRefuse {
			return errors.New("操作错误，当前状态不允许修改")
		}
	}
	mTechnologyTopic.Title = params.Title
	mTechnologyTopic.Emcee = params.Emcee
	mTechnologyTopic.Mechanism = params.Mechanism
	mTechnologyTopic.Code = params.Code
	mTechnologyTopic.Amount = params.Amount
	mTechnologyTopic.Source = model2.TechnologyTopicSource(params.Source)
	mTechnologyTopic.Kind = model2.TechnologyTopicKind(params.Kind)
	mTechnologyTopic.SetKeywordAttribute(params.Keywords)
	mTechnologyTopic.BeginAt = utils.DataTimeToDate(params.BeginAt)
	mTechnologyTopic.FinishAt = utils.DataTimeToDate(params.FinishAt)

	if mTechnologyTopic.ID > 0 {
		mTechnologyTopic.UpdatedAt = time.Now()
		return model2.Updates(mTechnologyTopic.TechnologyTopic, mTechnologyTopic.TechnologyTopic)
	}
	mTechnologyTopic.TenantID = c.tenantID
	mTechnologyTopic.UID = c.UID
	return model2.Create(mTechnologyTopic.TechnologyTopic)
}

// Delete 删除处理
func (c *Topic) Delete(id uint64) error {
	mTechnologyTopic := model.NewTechnologyTopic()
	mTechnologyTopic.ID = id

	isExist, err := model2.FirstField(mTechnologyTopic.TechnologyTopic, []string{"id", "m_uid", "status"})

	if err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，课题信息不存在")
	} else if mTechnologyTopic.UID != c.UID {
		return errors.New("无权限操作")
	}
	return model2.Delete(mTechnologyTopic.TechnologyTopic)
}

func NewTopic() TopicHandle {
	return func(session *session.Enterprise, tenantID uint64) *Topic {
		return &Topic{
			Enterprise: session,
			tenantID:   tenantID,
		}
	}
}