package technology

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

type Project struct {
	*session.Admin
}

type ProjectHandle func(session *session.Admin) *Project

type (
	// ProjectInstance 项目信息
	ProjectInstance struct {
		ID       string `json:"id"`
		TenantID string `json:"tenant_id"`
		*model2.TechnologyProject
		Area string `json:"area"`
	}
)

// Instance 首页信息
func (c *Project) Instance(tenantID uint64, title string, page, pageSize int) (*controller.ReturnPages, error) {
	mTechnologyProject := model.NewTechnologyProject()

	where := make([]*model2.ModelWhere, 0)

	if c.TenantID > 0 {
		where = append(where, model2.NewWhere("p.tenant_id", c.TenantID))
	}
	if tenantID > 0 {
		where = append(where, model2.NewWhere("p.tenant_id", tenantID))
	}
	if title != "" {
		where = append(where, model2.NewWhereLike("p.name", title))
	}
	var count int64

	out, err := mTechnologyProject.Projects(page, pageSize, &count, where...)

	if err != nil {
		return nil, err
	}
	list := make([]*ProjectInstance, len(out))

	for k, v := range out {
		list[k] = &ProjectInstance{
			ID: v.GetEncodeID(), TenantID: v.GetEncodeTenantID(),
			TechnologyProject: v.TechnologyProject, Area: v.FormatBasic(),
		}
	}
	return &controller.ReturnPages{Data: list, Count: count}, nil
}

// Shelf 上下架操作
func (c *Project) Shelf(id uint64) error {
	return controller.NewShelf(controller.WithShelfSessionAdmin(c.Admin)).Handle(model2.NewTechnologyProject(), id, nil)
}

// Delete 删除操作
func (c *Project) Delete(id uint64) error {
	mTechnologyProject := model.NewTechnologyProject()
	mTechnologyProject.ID = id

	isExist, err := model2.FirstField(mTechnologyProject.TechnologyProject, []string{"id", "tenant_id"})

	if err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，产品信息不存在或已被删除")
	}
	if c.TenantID > 0 && c.TenantID != mTechnologyProject.TenantID {
		return errors.New("操作错误，无权限操作")
	}
	return model2.Delete(mTechnologyProject.TechnologyProject)
}

func NewProject() ProjectHandle {
	return func(session *session.Admin) *Project {
		return &Project{session}
	}
}