package mq

import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"git.hpds.cc/pavement/hpds_node"
	"golang.org/x/image/bmp"
	"golang.org/x/image/tiff"
	"image"
	"image/jpeg"
	"image/png"
	"strings"
	"taskExecute/pkg/utils"
	"taskExecute/proto"
	"time"
)

func CreateWorkflowQueue(wf *Workflow) *WorkflowQueue {
	nodeId := ""
	qList := NewQueue(len(wf.Nodes))
	for i := 0; i < len(wf.Nodes); i++ {
		node := GetNextNode(wf, nodeId)
		_ = qList.Push(node.Id)
		nodeId = node.Id
	}
	return qList
	//switch node.Type {
	//case "start-node":
	//	node = GetNextNode(wf, node.Id)
	//case "image-node":
	//	//处理图像后
	//	img, _ := ProcessWorkflowNode(node, payload, fc)
	//	payload["resImage"] = img
	//	nextNode := GetNextNode(wf, node.Id)
	//
	//case "fetch-node":
	//case "model-node":
	//case "mq-node":
	//default:
	//
	//}
}
func ProcessWorkflow(payload map[string]interface{}, fc proto.FileCapture, wf *Workflow) {
	qList := CreateWorkflowQueue(wf)
	var (
		img        image.Image
		imgList    []image.Image
		imgType    string = "jpeg"
		err        error
		resultData string
	)
	startTime := time.Now().Unix()
	for i := 0; i < len(wf.Nodes); i++ {
		nodeId, _ := qList.Pop()
		node := GetWorkflowNodeById(wf, nodeId)
		if node == nil {
			continue
		}
		switch node.Type {
		case "start-node":
			fn, _ := base64.StdEncoding.DecodeString(fc.File)
			buff := bytes.NewBuffer(fn)
			img, imgType, err = image.Decode(buff)
			if err != nil {
				goto ReturnPoint
			}
		case "image-node":
			//处理图像后
			fn := utils.ImageToBuff(img, imgType)
			if node.Properties.NodeData.Method == "zoom" {
				img, imgType, err = utils.Clip(fn, node.Properties.NodeData.Width, node.Properties.NodeData.Height, node.Properties.NodeData.EqualProportion)
				if err != nil {
					goto ReturnPoint
				}
			} else if node.Properties.NodeData.Method == "crop" {
				imgList = utils.SplitImage(fn, node.Properties.NodeData.Width, node.Properties.NodeData.Height)
			} else if node.Properties.NodeData.Method == "gray" {
				img, err = utils.Gray(fn)
				if err != nil {
					goto ReturnPoint
				}
			} else if node.Properties.NodeData.Method == "rotate" {
				switch node.Properties.NodeData.RotationAngle {
				case 90:
					img = utils.Rotate90(fn)
				case 180:
					img = utils.Rotate180(fn)
				case 270:
					img = utils.Rotate270(fn)
				default:
					img, _, _ = image.Decode(fn)
				}
			} else if node.Properties.NodeData.Method == "formatConversion" {
				//img = utils.BuffToImage(fn)
				switch node.Properties.NodeData.Format {
				case "bmp":
					imgType = "bmp"
					_ = bmp.Encode(fn, img)
				case "png":
					imgType = "png"
					_ = png.Encode(fn, img)
				case "tiff":
					imgType = "tiff"
					_ = tiff.Encode(fn, img, &tiff.Options{Predictor: false})
				default:
					imgType = "jpeg"
					_ = jpeg.Encode(fn, img, &jpeg.Options{
						Quality: 100,
					})
				}

				img, _, _ = image.Decode(fn)
			}
		case "fetch-node":
			header := make(map[string]string)
			header["ContentType"] = node.Properties.NodeData.ContentType
			param := make(map[string]string)
			isBody := false
			if len(imgList) > 0 {
				result := make([]string, len(imgList))
				for idx, subImg := range imgList {
					for _, val := range node.Properties.NodeData.DynamicValidateForm.Fields {
						switch val.Type {
						case "fileName":
							param[val.Key] = fc.FileName
						case "imgBase64":
							param[val.Key] = utils.ImageToBase64(subImg, imgType)
						default:
							isBody = true
						}
					}
					if !isBody {
						data, e := utils.HttpDo(fmt.Sprintf("%s%s", node.Properties.NodeData.Proto, node.Properties.NodeData.Url),
							strings.ToUpper(node.Properties.NodeData.MethodType), param, header)
						if e != nil {
							err = e
							goto ReturnPoint
						}
						result[idx] = string(data)
						//resultData = string(data)
					} else {
						buff := utils.ImageToBuff(subImg, imgType)
						files := make([]utils.UploadFile, 1)
						files[0] = utils.UploadFile{
							Name:     "image",
							Filepath: "./output.jpg",
							File:     buff,
						}
						data := utils.PostFile(fmt.Sprintf("%s%s", node.Properties.NodeData.Proto, node.Properties.NodeData.Url),
							param, "multipart/form-data", files, header)
						//resultData = data
						result[idx] = string(data)
					}
				}
				resultStr, _ := json.Marshal(result)
				resultData = string(resultStr)
			} else {
				for _, val := range node.Properties.NodeData.DynamicValidateForm.Fields {
					switch val.Type {
					case "fileName":
						param[val.Key] = fc.FileName
					case "imgBase64":
						param[val.Key] = utils.ImageToBase64(img, imgType)
					default:
						isBody = true
					}
				}
				if !isBody {
					data, e := utils.HttpDo(fmt.Sprintf("%s%s", node.Properties.NodeData.Proto, node.Properties.NodeData.Url),
						strings.ToUpper(node.Properties.NodeData.MethodType), param, header)
					if e != nil {
						err = e
						goto ReturnPoint
					}
					resultData = string(data)
				} else {
					buff := utils.ImageToBuff(img, imgType)
					files := make([]utils.UploadFile, 1)
					files[0] = utils.UploadFile{
						Name:     "image",
						Filepath: "./output.jpg",
						File:     buff,
					}
					data := utils.PostFile(fmt.Sprintf("%s%s", node.Properties.NodeData.Proto, node.Properties.NodeData.Url),
						param, "multipart/form-data", files, header)
					resultData = data
				}
			}
		case "model-node":
			continue
		case "mq-node":
			continue
		default:
			continue
		}
	}
ReturnPoint:
	item := new(TaskResponseBody)
	item.TaskId = int64(payload["taskId"].(float64))
	item.TaskCode = payload["taskCode"].(string)
	item.NodeId = int64(payload["nodeId"].(float64))
	item.ModelId = int64(payload["modelId"].(float64))
	item.DatasetArr = payload["datasetArr"].(string)
	item.FileId = fc.FileId
	item.SrcPath = fc.FileName
	item.StartTime = startTime
	item.FinishTime = time.Now().Unix()
	if err != nil {
		item.Code = 500
		item.Msg = fmt.Sprintf("执行任务：%s", err.Error())
	} else {
		item.Code = 0
		item.Msg = "执行成功"
		item.Body = resultData
	}
	cli := GetMqClient("task-response", 1)
	ap := cli.EndPoint.(hpds_node.AccessPoint)
	res := new(InstructionReq)
	res.Command = TaskResponse
	res.Payload = item
	pData, _ := json.Marshal(res)
	_ = GenerateAndSendData(ap, pData)
}

func GetNextNode(wf *Workflow, currNodeId string) (node *WorkflowNode) {
	var nextId string
	if len(currNodeId) > 0 {
		//下一节点
		for _, v := range wf.Edges {
			if v.SourceNodeId == currNodeId {
				nextId = v.TargetNodeId
			}
		}
	} else {
		//开始节点
		for _, v := range wf.Nodes {
			if v.Type == "start-node" {
				return &v
			}
		}
	}
	if len(nextId) > 0 {
		for _, v := range wf.Nodes {
			if v.Id == nextId {
				return &v
			}
		}
	}
	return nil
}

func GetWorkflowNodeById(wf *Workflow, id string) (node *WorkflowNode) {
	for _, v := range wf.Nodes {
		if v.Id == id {
			return &v
		}
	}
	return nil
}