package status

import (
	"errors"
	"fmt"
	"github.com/zeromicro/go-zero/core/logx"
	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/scheduler/service/utils/jcs"
	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/svc"
	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/types"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/constants"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/models"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
	"net/http"
	"strconv"
	"sync"
	"time"
)

func UpdateTaskStatus(svc *svc.ServiceContext, tasklist []*types.TaskModel) {
	list := make([]*types.TaskModel, len(tasklist))
	copy(list, tasklist)
	for i := len(list) - 1; i >= 0; i-- {
		if list[i].AdapterTypeDict != "1" || list[i].Status == constants.Succeeded || list[i].Status == constants.Failed || list[i].Status == constants.Cancelled {
			list = append(list[:i], list[i+1:]...)
		}
	}

	if len(list) == 0 {
		return
	}

	task := list[0]
	for i := range list {
		earliest, _ := time.Parse(time.RFC3339, task.UpdatedTime)
		latest, _ := time.Parse(time.RFC3339, list[i].UpdatedTime)
		if latest.Before(earliest) {
			task = list[i]
		}
	}

	// Update Infer Task Status
	if task.TaskTypeDict == "11" || task.TaskTypeDict == "12" {
		updateInferTaskStatus(svc, *task)
		return
	}

	aiTask, err := svc.Scheduler.AiStorages.GetAiTaskListById(task.Id)
	if err != nil {
		logx.Errorf(err.Error())
		return
	}

	if len(aiTask) == 0 {
		err := svc.Scheduler.AiStorages.UpdateTask(task)
		if err != nil {
			return
		}
		return
	}

	if len(aiTask) == 1 {
		if aiTask[0].Status == constants.Completed {
			task.Status = constants.Succeeded
			_ = reportStatusMessages(svc, task, aiTask[0])
		} else {
			task.Status = aiTask[0].Status
		}
		task.StartTime = aiTask[0].StartTime
		task.EndTime = aiTask[0].EndTime
		err := svc.Scheduler.AiStorages.UpdateTask(task)
		if err != nil {
			return
		}
		return
	}

	for i := len(aiTask) - 1; i >= 0; i-- {
		if aiTask[i].StartTime == "" {
			task.Status = aiTask[i].Status
			aiTask = append(aiTask[:i], aiTask[i+1:]...)
		}
	}

	if len(aiTask) == 0 {
		err := svc.Scheduler.AiStorages.UpdateTask(task)
		if err != nil {
			return
		}
		return
	}

	start, _ := time.ParseInLocation(constants.Layout, aiTask[0].StartTime, time.Local)
	end, _ := time.ParseInLocation(constants.Layout, aiTask[0].EndTime, time.Local)

	var status string
	var count int
	for _, a := range aiTask {
		s, _ := time.ParseInLocation(constants.Layout, a.StartTime, time.Local)
		e, _ := time.ParseInLocation(constants.Layout, a.EndTime, time.Local)

		if s.Before(start) {
			start = s
		}

		if e.After(end) {
			end = e
		}

		if a.Status == constants.Failed {
			status = a.Status
			break
		}

		if a.Status == constants.Pending {
			status = a.Status
			continue
		}

		if a.Status == constants.Running {
			status = a.Status
			continue
		}

		if a.Status == constants.Completed {
			count++
			continue
		}
	}

	if count == len(aiTask) {
		status = constants.Succeeded
	}

	if status != "" {
		task.Status = status
		task.StartTime = start.Format(constants.Layout)
		task.EndTime = end.Format(constants.Layout)
	}

	err = svc.Scheduler.AiStorages.UpdateTask(task)
	if err != nil {
		return
	}
}

func reportStatusMessages(svc *svc.ServiceContext, task *types.TaskModel, aiTask *models.TaskAi) error {
	report := &jcs.JobStatusReportReq{
		TaskName: task.Name,
		TaskID:   strconv.FormatInt(task.Id, 10),
		Messages: make([]*jcs.ReportMessage, 0),
	}
	//add report msg
	jobMsg := &jcs.ReportMessage{
		Status:    true,
		Message:   "",
		ClusterID: strconv.FormatInt(aiTask.ClusterId, 10),
		Output:    aiTask.JobId,
	}
	report.Messages = append(report.Messages, jobMsg)

	_ = jcs.StatusReport(svc.Scheduler.AiService.Conf.JcsMiddleware.Url, report)

	return nil
}

func updateInferTaskStatus(svc *svc.ServiceContext, task types.TaskModel) {
	aiTask, err := svc.Scheduler.AiStorages.GetAiTaskListById(task.Id)
	if err != nil {
		logx.Errorf(err.Error())
		return
	}

	if len(aiTask) == 0 {
		//task.Status = constants.Failed
		err = svc.Scheduler.AiStorages.UpdateTask(&task)
		if err != nil {
			return
		}
		return
	}

	if len(aiTask) == 1 {
		if aiTask[0].Status == constants.Completed {
			task.StartTime = aiTask[0].StartTime
			task.EndTime = aiTask[0].EndTime
			task.Status = constants.Succeeded
		} else {
			task.StartTime = aiTask[0].StartTime
			task.Status = aiTask[0].Status
		}

		err = svc.Scheduler.AiStorages.UpdateTask(&task)
		if err != nil {
			return
		}
		return
	}

	//for i := len(aiTask) - 1; i >= 0; i-- {
	//	if aiTask[i].StartTime == "" {
	//		task.Status = aiTask[i].Status
	//		aiTask = append(aiTask[:i], aiTask[i+1:]...)
	//	}
	//}
	//
	//if len(aiTask) == 0 {
	//	task.UpdatedTime = time.Now().Format(constants.Layout)
	//	tx = svc.DbEngin.Table("task").Model(task).Updates(task)
	//	if tx.Error != nil {
	//		logx.Errorf(tx.Error.Error())
	//		return
	//	}
	//	return
	//}

	if aiTask[0].StartTime == "" {
		return
	}

	start, _ := time.ParseInLocation(time.RFC3339, aiTask[0].StartTime, time.Local)
	end, _ := time.ParseInLocation(time.RFC3339, aiTask[0].EndTime, time.Local)
	var status string
	var count int
	for _, a := range aiTask {
		if a.Status == constants.Failed {
			status = a.Status
			break
		}

		if a.Status == constants.Pending {
			status = a.Status
			continue
		}

		if a.Status == constants.Running {
			status = a.Status
			continue
		}

		if a.Status == constants.Completed {
			count++
			continue
		}
	}

	if count == len(aiTask) {
		status = constants.Succeeded
	}

	if status == constants.Succeeded {
		task.Status = status
		task.StartTime = start.Format(time.RFC3339)
		task.EndTime = end.Format(time.RFC3339)
	} else {
		task.Status = status
		task.StartTime = start.Format(time.RFC3339)
	}

	err = svc.Scheduler.AiStorages.UpdateTask(&task)
	if err != nil {
		return
	}
}

func UpdateAiTask(svc *svc.ServiceContext, aiTaskList ...*models.TaskAi) {
	var wg sync.WaitGroup
	for _, aitask := range aiTaskList {
		t := aitask
		if t.Status == constants.Completed || t.Status == constants.Failed || t.JobId == "" || t.Status == constants.Cancelled {
			continue
		}
		wg.Add(1)
		go func() {
			h := http.Request{}
			trainingTask, err := svc.Scheduler.AiService.AiCollectorAdapterMap[strconv.FormatInt(t.AdapterId, 10)][strconv.FormatInt(t.ClusterId, 10)].GetTrainingTask(h.Context(), t.JobId)
			if err != nil {
				if status.Code(err) == codes.DeadlineExceeded {
					msg := fmt.Sprintf("###UpdateAiTaskStatus###, AiTaskId: %v, clusterId: %v , JobId: %v,  error: %v \n", t.Id, t.ClusterId, t.JobId, err.Error())
					logx.Errorf(errors.New(msg).Error())
					wg.Done()
					return
				}

				msg := fmt.Sprintf("###UpdateAiTaskStatus###, AiTaskId: %v, clusterId: %v , JobId: %v,  error: %v \n", t.Id, t.ClusterId, t.JobId, err.Error())
				logx.Errorf(errors.New(msg).Error())
				wg.Done()
				return
			}
			if trainingTask == nil {
				wg.Done()
				return
			}
			switch trainingTask.Status {
			case constants.Running:
				if t.Status != trainingTask.Status {
					svc.Scheduler.AiStorages.AddNoticeInfo(strconv.FormatInt(t.AdapterId, 10), t.AdapterName, strconv.FormatInt(t.ClusterId, 10), t.ClusterName, t.Name, "running", "任务运行中")
					t.Status = trainingTask.Status
				}
			case constants.Failed:
				if t.Status != trainingTask.Status {
					svc.Scheduler.AiStorages.AddNoticeInfo(strconv.FormatInt(t.AdapterId, 10), t.AdapterName, strconv.FormatInt(t.ClusterId, 10), t.ClusterName, t.Name, "failed", "任务失败")
					t.Status = trainingTask.Status
				}
			case constants.Completed:
				if t.Status != trainingTask.Status {
					svc.Scheduler.AiStorages.AddNoticeInfo(strconv.FormatInt(t.AdapterId, 10), t.AdapterName, strconv.FormatInt(t.ClusterId, 10), t.ClusterName, t.Name, "completed", "任务完成")
					t.Status = trainingTask.Status
				}
			default:
				if t.Status != trainingTask.Status {
					svc.Scheduler.AiStorages.AddNoticeInfo(strconv.FormatInt(t.AdapterId, 10), t.AdapterName, strconv.FormatInt(t.ClusterId, 10), t.ClusterName, t.Name, "pending", "任务pending")
					t.Status = trainingTask.Status
				}
			}
			t.StartTime = trainingTask.Start
			t.EndTime = trainingTask.End
			err = svc.Scheduler.AiStorages.UpdateAiTask(t)
			if err != nil {
				msg := fmt.Sprintf("###UpdateAiTaskStatus###, AiTaskId: %v, clusterId: %v , JobId: %v,  error: %v \n", t.Id, t.ClusterId, t.JobId, err.Error())
				logx.Errorf(errors.New(msg).Error())
				wg.Done()
				return
			}
			wg.Done()
		}()
	}
	wg.Wait()
}

func UpdateAiTaskStatus(svc *svc.ServiceContext, tasklist []*types.TaskModel) {
	list := make([]*types.TaskModel, len(tasklist))
	copy(list, tasklist)
	for i := len(list) - 1; i >= 0; i-- {
		if list[i].AdapterTypeDict != "1" || list[i].Status == constants.Succeeded || list[i].Status == constants.Failed {
			list = append(list[:i], list[i+1:]...)
		}
	}

	if len(list) == 0 {
		return
	}

	task := list[0]
	for i := range list {
		earliest, _ := time.Parse(constants.Layout, task.UpdatedTime)
		latest, _ := time.Parse(constants.Layout, list[i].UpdatedTime)
		if latest.Before(earliest) {
			task = list[i]
		}
	}

	aiTaskList, err := svc.Scheduler.AiStorages.GetAiTaskListById(task.Id)
	if err != nil {
		logx.Errorf(err.Error())
		return
	}

	if len(aiTaskList) == 0 {
		return
	}

	UpdateAiTask(svc, aiTaskList...)
}

func UpdateTrainingTaskStatus(svc *svc.ServiceContext, list []*types.AdapterInfo) {
	var wg sync.WaitGroup
	for _, adapter := range list {
		taskList, err := svc.Scheduler.AiStorages.GetAiTasksByAdapterId(adapter.Id)
		if err != nil {
			continue
		}
		if len(taskList) == 0 {
			continue
		}
		for _, task := range taskList {
			t := task
			if t.Status == constants.Completed || task.Status == constants.Failed || task.Status == constants.Stopped || task.TaskType != "pytorch" {
				continue
			}
			wg.Add(1)
			go func() {
				h := http.Request{}
				trainingTask, err := svc.Scheduler.AiService.AiCollectorAdapterMap[adapter.Id][strconv.FormatInt(t.ClusterId, 10)].GetTrainingTask(h.Context(), t.JobId)
				if err != nil {
					msg := fmt.Sprintf("AiTaskId: %v, clusterId: %v , JobId: %v,  error: %v \n", t.Id, t.ClusterId, t.JobId, err.Error())
					logx.Errorf(errors.New(msg).Error())
					wg.Done()
					return
				}
				if trainingTask == nil {
					wg.Done()
					return
				}
				t.Status = trainingTask.Status
				t.StartTime = trainingTask.Start
				t.EndTime = trainingTask.End
				err = svc.Scheduler.AiStorages.UpdateAiTask(t)
				if err != nil {
					wg.Done()
					return
				}
				wg.Done()
			}()
		}
	}
	wg.Wait()
	return
}