package sys

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

type Agreement struct {
	*session.Admin
}

type AgreementHandle func(session *session.Admin) *Agreement

type (
	// AgreementInfo 协议信息
	AgreementInfo struct {
		ID       string `json:"id"`
		TenantID string `json:"tenant_id"`
		Area     string `json:"area"`
		*model2.SysAgreement
	}
	// AgreementDetailInfo 协议详细信息
	AgreementDetailInfo struct {
		ID       string `json:"id"`
		TenantID string `json:"tenant_id"`
		*model2.SysAgreement
	}
	// AgreementParams 协议参数信息
	AgreementParams struct {
		ID, TenantID   uint64
		Title, Content string
		Status         int
	}
)

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

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

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

	out, err := mSysAgreement.Agreement(page, pageSize, &count, where...)

	if err != nil {
		return nil, err
	}

	list := make([]*AgreementInfo, 0)

	for _, v := range out {
		list = append(list, &AgreementInfo{
			ID:           v.GetEncodeID(),
			TenantID:     v.GetEncodeTenantID(),
			Area:         v.FormatBasic(),
			SysAgreement: v.SysAgreement,
		})
	}
	return &controller.ReturnPages{Data: list, Count: count}, nil
}

// Detail 详细信息
func (c *Agreement) Detail(id uint64) (*AgreementDetailInfo, error) {
	mSysAgreement := model.NewSysAgreement()
	mSysAgreement.ID = id

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

	if err != nil {
		return nil, err
	} else if !isExist {
		return nil, errors.New("操作错误，协议信息不存在或已被删除")
	}
	return &AgreementDetailInfo{
		ID:           mSysAgreement.GetEncodeID(),
		TenantID:     mSysAgreement.GetEncodeTenantID(),
		SysAgreement: mSysAgreement.SysAgreement,
	}, nil
}

func (c *Agreement) Form(params *AgreementParams) error {
	mSysAgreement := model.NewSysAgreement()

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

		isExist, err := model2.FirstField(mSysAgreement.SysAgreement, []string{"id", "tenant_id", "created_at"})

		if err != nil {
			return err
		} else if !isExist {
			return errors.New("操作错误，协议信息不存在或已被删除")
		}
		if c.TenantID > 0 && c.TenantID != mSysAgreement.TenantID {
			return errors.New("操作错误，无权限操作")
		}
	}
	mSysAgreement.Title = params.Title
	mSysAgreement.Content = params.Content
	mSysAgreement.Status = model2.SysAgreementStatus(params.Status)

	if mSysAgreement.ID > 0 {
		if c.TenantID <= 0 {
			mSysAgreement.TenantID = params.TenantID
		}
		return model2.Updates(mSysAgreement.SysAgreement, mSysAgreement.SysAgreement)
	}
	mSysAgreement.TenantID = params.TenantID

	if c.TenantID > 0 {
		mSysAgreement.TenantID = c.TenantID
	}
	return model2.Create(mSysAgreement.SysAgreement)
}

// Delete 删除操作
func (c *Agreement) Delete(id uint64) error {
	mSysAgreement := model.NewSysAgreement()
	mSysAgreement.ID = id

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

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

func NewAgreement() AgreementHandle {
	return func(session *session.Admin) *Agreement {
		return &Agreement{session}
	}
}