package core

import (
	"context"
	"github.com/pkg/errors"
	"github.com/zeromicro/go-zero/core/logx"
	clientCore "gitlink.org.cn/JointCloud/pcm-coordinator/client"
	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/svc"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/constants"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/models"
	"gorm.io/gorm"
	"strings"
	"time"
)

type PushTaskInfoLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewPushTaskInfoLogic(ctx context.Context, svcCtx *svc.ServiceContext) *PushTaskInfoLogic {
	return &PushTaskInfoLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *PushTaskInfoLogic) PushTaskInfo(req *clientCore.PushTaskInfoReq) (*clientCore.PushTaskInfoResp, error) {
	resp := clientCore.PushTaskInfoResp{}
	var kind int32
	l.svcCtx.DbEngin.Raw("select type as kind from t_adapter where id = ?", req.AdapterId).Scan(&kind)
	switch kind {
	case 0:
		var resourceType int32
		l.svcCtx.DbEngin.Raw("select resource_type as resourceType from `t_adapter` where id = ?", req.AdapterId).Scan(&resourceType)
		switch resourceType {
		case 01:
			for _, cloudInfo := range req.CloudInfoList {
				var taskId uint
				result := l.svcCtx.DbEngin.Table("task_cloud").Select("task_id").Where("task_id = ?", cloudInfo.TaskId).Find(&taskId)
				if errors.Is(result.Error, gorm.ErrRecordNotFound) {
					return nil, errors.New("Record does not exist")
				}
				l.svcCtx.DbEngin.Exec("update task_cloud set status = ?,start_time = ?,result = ? where task_id = ?",
					cloudInfo.Status, cloudInfo.StartTime, cloudInfo.Result, cloudInfo.TaskId)
				var taskName string
				l.svcCtx.DbEngin.Raw("select name as kind from task where id = ?", taskId).Scan(&taskName)
				noticeInfo := clientCore.NoticeInfo{
					TaskId:      cloudInfo.TaskId,
					AdapterId:   cloudInfo.AdapterId,
					AdapterName: cloudInfo.AdapterName,
					ClusterId:   cloudInfo.ClusterId,
					ClusterName: cloudInfo.ClusterName,
					TaskName:    taskName,
				}
				syncTask(l.svcCtx.DbEngin, noticeInfo)
			}
		case 02:
			for _, vmInfo := range req.VmInfoList {
				l.svcCtx.DbEngin.Exec("update task_vm set status = ?,start_time = ?,server_id = ?  where cluster_id = ? and task_id = ? and name = ?",
					vmInfo.Status, vmInfo.StartTime, vmInfo.ServerId, vmInfo.ClusterId, vmInfo.TaskId, vmInfo.Name)
				noticeInfo := clientCore.NoticeInfo{
					TaskId:      vmInfo.TaskId,
					AdapterId:   vmInfo.AdapterId,
					AdapterName: vmInfo.AdapterName,
					ClusterId:   vmInfo.ClusterId,
					ClusterName: vmInfo.ClusterName,
					TaskName:    vmInfo.Name,
				}
				syncTask(l.svcCtx.DbEngin, noticeInfo)
			}
		}

	case 2:
		for _, hpcInfo := range req.HpcInfoList {
			l.svcCtx.DbEngin.Exec("update task_hpc set status = ?,start_time = ?,job_id = ? where cluster_id = ? and task_id = ? and name = ?",
				hpcInfo.Status, hpcInfo.StartTime, hpcInfo.JobId, hpcInfo.ClusterId, hpcInfo.TaskId, hpcInfo.Name)
			noticeInfo := clientCore.NoticeInfo{
				TaskId:      hpcInfo.TaskId,
				AdapterId:   hpcInfo.AdapterId,
				AdapterName: hpcInfo.AdapterName,
				ClusterId:   hpcInfo.ClusterId,
				ClusterName: hpcInfo.ClusterName,
				TaskName:    hpcInfo.Name,
			}
			syncTask(l.svcCtx.DbEngin, noticeInfo)
		}
	case 1:
		for _, aiInfo := range req.AiInfoList {
			l.svcCtx.DbEngin.Exec("update task_ai_asynchronous set status = ?,start_time = ?,job_id = ? where cluster_id = ? and task_id = ? and name = ?",
				aiInfo.Status, aiInfo.StartTime, aiInfo.JobId, aiInfo.ClusterId, aiInfo.TaskId, aiInfo.Name)
			noticeInfo := clientCore.NoticeInfo{
				TaskId:      aiInfo.TaskId,
				AdapterId:   aiInfo.AdapterId,
				AdapterName: aiInfo.AdapterName,
				ClusterId:   aiInfo.ClusterId,
				ClusterName: aiInfo.ClusterName,
				TaskName:    aiInfo.Name,
			}
			syncTask(l.svcCtx.DbEngin, noticeInfo)
		}
	}
	return &resp, nil
}

func syncTask(gorm *gorm.DB, noticeInfo clientCore.NoticeInfo) {

	var allStatus string
	tx := gorm.Raw("SELECT CONCAT_WS(',',GROUP_CONCAT(DISTINCT h.status) ,GROUP_CONCAT(DISTINCT  a.status) ,GROUP_CONCAT(DISTINCT c.status),GROUP_CONCAT(DISTINCT v.status))as status from task t left join task_hpc h on t.id  = h.task_id left join task_cloud c  on t.id  = c.task_id left join task_vm v on t.id  = v.task_id left join task_ai a on t.id  = a.task_id where t.id  = ?", noticeInfo.TaskId).Scan(&allStatus)
	if tx.Error != nil {
		logx.Error(tx.Error)
	}
	allStatus = strings.ToUpper(allStatus)
	for pcmStatus, ProviderStatus := range clientCore.StatusMapping {
		for _, originalStatus := range ProviderStatus {
			// if Failed type status appears in subTask then update mainTask to Failed
			if pcmStatus == "Failed" && strings.Contains(allStatus, originalStatus) {
				updateTask(gorm, noticeInfo.TaskId, constants.Failed)
				noticeInfo := clientCore.NoticeInfo{
					AdapterId:   noticeInfo.AdapterId,
					AdapterName: noticeInfo.AdapterName,
					ClusterId:   noticeInfo.ClusterId,
					ClusterName: noticeInfo.ClusterName,
					NoticeType:  "failed",
					TaskName:    noticeInfo.TaskName,
					Incident:    "任务执行失败，请查看日志！",
					CreatedTime: time.Now(),
				}
				gorm.Table("t_notice").Create(&noticeInfo)
				return
				// no Failed type status in subTask,if Saved type status appears in subTask then update mainTask to Saved
			} else if pcmStatus == "Saved" && strings.Contains(allStatus, originalStatus) {
				if getTaskStatus(gorm, noticeInfo.TaskId) != "Saved" {
					updateTask(gorm, noticeInfo.TaskId, constants.Saved)
					noticeInfo := clientCore.NoticeInfo{
						AdapterId:   noticeInfo.AdapterId,
						AdapterName: noticeInfo.AdapterName,
						ClusterId:   noticeInfo.ClusterId,
						ClusterName: noticeInfo.ClusterName,
						NoticeType:  "saved",
						TaskName:    noticeInfo.TaskName,
						Incident:    "任务已处于队列中！",
						CreatedTime: time.Now(),
					}
					gorm.Table("t_notice").Create(&noticeInfo)
					return
				} else {
					return
				}
				// no Failed and Saved type status in subTask,if Running type status appears in subTask then update mainTask to Running
			} else if pcmStatus == "Running" && strings.Contains(allStatus, originalStatus) {
				if getTaskStatus(gorm, noticeInfo.TaskId) != "Running" {
					updateTask(gorm, noticeInfo.TaskId, constants.Running)
					noticeInfo := clientCore.NoticeInfo{
						AdapterId:   noticeInfo.AdapterId,
						AdapterName: noticeInfo.AdapterName,
						ClusterId:   noticeInfo.ClusterId,
						ClusterName: noticeInfo.ClusterName,
						NoticeType:  "running",
						TaskName:    noticeInfo.TaskName,
						Incident:    "任务状态切换为运行中！",
						CreatedTime: time.Now(),
					}
					gorm.Table("t_notice").Create(&noticeInfo)
					return
				} else {
					return
				}

				// at last, mainTask should be succeeded
			} else {
				if strings.Contains(allStatus, originalStatus) {
					updateTask(gorm, noticeInfo.TaskId, constants.Succeeded)
					noticeInfo := clientCore.NoticeInfo{
						AdapterId:   noticeInfo.AdapterId,
						AdapterName: noticeInfo.AdapterName,
						ClusterId:   noticeInfo.ClusterId,
						ClusterName: noticeInfo.ClusterName,
						NoticeType:  "succeeded",
						TaskName:    noticeInfo.TaskName,
						Incident:    "任务执行完成！",
						CreatedTime: time.Now(),
					}
					gorm.Table("t_notice").Create(&noticeInfo)
					return
				}
			}
		}
	}
}

func updateTask(gorm *gorm.DB, taskId int64, status string) {
	now := time.Now()
	var task models.Task
	gorm.Where("id = ? ", taskId).Find(&task)
	if task.Status != status {
		task.Status = status
		if status == constants.Running {
			task.StartTime = &now
		}
		if task.Status == constants.Failed || task.Status == constants.Succeeded {
			task.EndTime = &now
		}
		gorm.Updates(&task)
	}
}

func getTaskStatus(gorm *gorm.DB, taskId int64) (status string) {
	var task models.Task
	gorm.Where("id = ? ", taskId).Find(&task)
	return task.Status
}