package pipeline

import (
	"git.sxidc.com/go-tools/utils/fileutils"
	"git.sxidc.com/go-tools/utils/pipeline/component"
	"git.sxidc.com/go-tools/utils/pipeline/component/flow"
	"git.sxidc.com/go-tools/utils/strutils"
	"github.com/pkg/errors"
	"gopkg.in/yaml.v3"
	"os"
)

func init() {
	err := component.RegisterComponentBuilders(
		&flow.SeqBuilder{}, &flow.IfBuilder{}, &flow.LoopBuilder{}, &flow.RangeBuilder{}, &flow.BiBuilder{},
	)
	if err != nil {
		panic(err)
	}
}

type Pipeline struct {
	Flow *flow.Seq
}

func (p *Pipeline) Run(globalRunParams map[string]any, dynamicParams map[string]any) *RunToken {
	token := NewRunToken()

	go func() {
		result, err := p.Flow.Run(&component.GlobalRunParams{
			CustomRunParams: globalRunParams,
		}, dynamicParams)
		if err != nil {
			token.Err = err
			token.Done()
			return
		}

		token.Result = result
		token.Done()
	}()

	return token
}

func NewPipelineFromYaml(yamlPath string) (*Pipeline, error) {
	if strutils.IsStringEmpty(yamlPath) {
		return nil, errors.New("没有传递流水线定义文件")
	}

	if !fileutils.PathExists(yamlPath) {
		return nil, errors.New("流水线定义文件不存在")
	}

	yamlBytes, err := os.ReadFile(yamlPath)
	if err != nil {
		return nil, errors.New("读取流水线定义文件失败: " + err.Error())
	}

	def := new(Definition)
	err = yaml.Unmarshal(yamlBytes, def)
	if err != nil {
		return nil, errors.New("Unmarshal流水线定义文件失败: " + err.Error())
	}

	return def.NewPipeline()
}

func NewPipelineFromYamlStr(yamlStr string) (*Pipeline, error) {
	if strutils.IsStringEmpty(yamlStr) {
		return nil, errors.New("没有传递流水线定义")
	}

	def := new(Definition)
	err := yaml.Unmarshal([]byte(yamlStr), def)
	if err != nil {
		return nil, errors.New("Unmarshal流水线定义文件失败: " + err.Error())
	}

	return def.NewPipeline()
}

func LoadDynamicParamsFromYaml(yamlPath string) (map[string]any, error) {
	if strutils.IsStringEmpty(yamlPath) {
		return nil, errors.New("没有传递流水线动态参数文件不存在")
	}

	if !fileutils.PathExists(yamlPath) {
		return nil, errors.New("流水线动态参数文件不存在")
	}

	yamlBytes, err := os.ReadFile(yamlPath)
	if err != nil {
		return nil, errors.New("读取流水线动态参数文件失败: " + err.Error())
	}

	dynamicParams := make(map[string]any)
	err = yaml.Unmarshal(yamlBytes, dynamicParams)
	if err != nil {
		return nil, err
	}

	return dynamicParams, nil
}

func LoadDynamicParamsFromYamlStr(yamlStr string) (map[string]any, error) {
	if strutils.IsStringEmpty(yamlStr) {
		return nil, errors.New("没有传递流水线动态参数不存在")
	}

	dynamicParams := make(map[string]any)
	err := yaml.Unmarshal([]byte(yamlStr), dynamicParams)
	if err != nil {
		return nil, err
	}

	return dynamicParams, nil
}