package resx

import (
	"sync"

	"git.fsdpf.net/go/db/exp"
	"git.fsdpf.net/go/req"
)

func NewVirtualResource(res req.Resource, code string, table exp.SQLExpression, opts ...Option) req.Resource {
	pRes, ok := res.(*resource)
	if !ok {
		panic("resx.NewVirtualResource: res 必须是 resx.New 构造出来的 req.Resource")
	}

	r := &resource{
		container:    pRes.container,
		conn:         pRes.conn,
		historyRoles: pRes.historyRoles,
		initOnce:     &sync.Once{},
		uuid:         code,
		code:         code,
		name:         code,
		table:        code,
		isResVirtual: true,
		virtualTable: table,
		primarykey:   "id",
	}
	for _, opt := range opts {
		opt(r)
	}
	return r
}