package definition

import (
	"git.sxidc.com/go-framework/baize/framework/core/domain/entity"
	"git.sxidc.com/go-framework/baize/framework/core/tag/rule"
	"github.com/pkg/errors"
	"sync"
)

var registeredDomainMap = &sync.Map{}

type RegisterByEntityItem struct {
	Entity   entity.Entity
	FieldMap map[string]string
}

func RegisterByDomainEntity(items ...RegisterByEntityItem) error {
	for _, item := range items {
		e := item.Entity

		fields, err := rule.DefaultUsage(e)
		if err != nil {
			return err
		}

		definitions := make([]Entity, 0)
		for _, field := range fields {
			definitions = append(definitions, Entity{
				FieldType:   field.Type,
				FieldName:   field.FieldName,
				ColumnName:  field.ColumnName,
				FieldCNName: item.FieldMap[field.FieldName],
				Operators:   operatorOfTypeMap[field.Type],
			})
		}

		registeredDomainMap.Store(e.DomainCamelName(), definitions)
	}

	return nil
}

func GetQueryRuleDefinitions(domainName string) []Entity {
	result, ok := registeredDomainMap.Load(domainName)
	if !ok {
		return make([]Entity, 0)
	}

	return result.([]Entity)
}

func GetColumnName(domainName string, fieldName string) (string, error) {
	definitions := GetQueryRuleDefinitions(domainName)

	if definitions == nil || len(definitions) == 0 {
		return "", errors.Errorf("领域没有注册: %v", domainName)
	}

	for _, definition := range definitions {
		if definition.FieldName == fieldName {
			return definition.ColumnName, nil
		}
	}

	return "", errors.Errorf("领域没有该字段: %v", fieldName)
}