package component

import (
	"git.sxidc.com/go-tools/utils/strutils"
	"github.com/pkg/errors"
	"sync"
)

type Component interface {
	GetType() string
	GetName() string
	Run(globalRunParams *GlobalRunParams, dynamicParams map[string]any) (any, error)
}

type Builder interface {
	ProductType() string
	Build(name string, buildParams map[string]any, runParams map[string]any) (Component, error)
}

var nodeBuilderMap = sync.Map{}

func RegisterComponentBuilders(builders ...Builder) error {
	if builders == nil || len(builders) == 0 {
		return nil
	}

	for _, builder := range builders {
		nodeType := builder.ProductType()
		if strutils.IsStringEmpty(nodeType) {
			return errors.New("节点类型名称不能为空")
		}

		_, ok := nodeBuilderMap.Load(nodeType)
		if ok {
			return errors.New(nodeType + "的builder已注册")
		}

		nodeBuilderMap.Store(nodeType, builder)
	}

	return nil
}

func UnRegisterComponents(typeNames []string) {
	if typeNames == nil || len(typeNames) == 0 {
		return
	}

	for _, typeName := range typeNames {
		nodeBuilderMap.Delete(typeName)
	}
}

func BuildComponent(typeName string, name string, buildParams map[string]any, runParams map[string]any) (Component, error) {
	if strutils.IsStringEmpty(typeName) {
		return nil, errors.New("没有传递类型名称")
	}

	if strutils.IsStringEmpty(name) {
		return nil, errors.New("没有传递名称")
	}

	value, ok := nodeBuilderMap.Load(typeName)
	if !ok {
		return nil, errors.New(typeName + "未注册")
	}

	builder, ok := value.(Builder)
	if !ok {
		return nil, errors.New(typeName + "类型转换失败")
	}

	newComponent, err := builder.Build(name, buildParams, runParams)
	if err != nil {
		return nil, err
	}

	if newComponent == nil {
		return nil, errors.New(typeName + "的builder返回的对象为空")
	}

	return newComponent, nil
}