package handler

import (
	"GtDataStore/app/cmd/events/internal/logic/job"
	"GtDataStore/app/cmd/events/internal/svc"
	"GtDataStore/app/model"
	"context"
	"github.com/zeromicro/go-zero/core/logx"
	"metawant.greentech.com.cn/gaoyagang/gt-common/envitem"
	"metawant.greentech.com.cn/gaoyagang/gt-common/identify"
	"sync"
	"time"
)

func EventMulti(ctx context.Context, task *job.Task, technologyName string) error {
	// 1. 查询所有的设备
	binds, err := findMultiRecord(task.Job.SvcCtx, int64(task.Id))
	if err != nil {
		return err
	}

	// 2. 识别事件
	var wg sync.WaitGroup
	wg.Add(len(binds))
	for _, bind := range binds {
		bind := bind
		go func() {
			defer wg.Done()

			multiEnvItem := extractEventItems(bind)
			//fmt.Printf("extractEventItems: %+v\n", multiEnvItem)
			err := multiEnvItem.FillCurrentValue()
			if err != nil {
				return
			}

			ovs := multiEnvItem.FindPrevString()
			nvs := multiEnvItem.FindString()

			rules := make(map[string]identify.MultiRule)
			rules[bind.Name] = bind.Config.Multi
			checker := identify.NewMultiCheck(rules)
			name := checker.Check(ovs, nvs)
			//fmt.Printf("ovs: %+v\n", ovs)
			//fmt.Printf("nvs: %+v\n", nvs)
			//fmt.Printf("rules: %+v\n", rules)
			//fmt.Printf("name: %s\n", name)
			if name != "" {
				items := make([]string, 0)
				times := make(map[string]time.Time)

				for itemName, _ := range nvs {
					items = append(items, itemName)
					times[itemName] = *multiEnvItem.GetItemHtime(itemName)
				}

				multiEventChan <- multiEventInfo{
					ProjectId:  bind.ProjectId,
					DeviceCode: bind.DeviceCode,
					Items:      items,
					EventId:    bind.Id,
					EventName:  name,
					OldValues:  ovs,
					NewValues:  nvs,
					Times:      times,
				}
			}
		}()
	}

	wg.Wait()

	return nil
}

func findMultiRecord(svcCtx *svc.ServiceContext, projectId int64) ([]model.DcEventBind, error) {
	if data := eventBindCacheTable.GetCache(EVENT_MULTI_ITEM); data != nil {
		return data, nil
	}

	if binds, err := svcCtx.DcEventBind.FindByProjectIdRuleFlag(context.Background(), projectId, EVENT_MULTI_ITEM); err != nil {
		logx.Error("findSingleRecord not found record")
		return nil, err
	} else {
		eventBindCacheTable.SetCache(EVENT_MULTI_ITEM, binds, time.Now().Add(300*time.Second))
		return binds, nil
	}
}

func extractEventItems(bind model.DcEventBind) envitem.MultiEnvItem {
	me := make(envitem.MultiEnvItem)
	for itemName, rule := range bind.Config.Multi {
		_ = rule
		me[itemName] = &envitem.EnvItem{
			ProjectId: bind.ProjectId,
			Item:      itemName,
		}
	}

	return me
}