package binanceservice

import (
	"context"
	"errors"
	"fmt"
	DbModels "go-admin/app/admin/models"
	"go-admin/app/admin/service/dto"
	"go-admin/common/const/rediskey"
	"go-admin/common/global"
	"go-admin/common/helper"
	"go-admin/models"
	"go-admin/pkg/utility"
	"go-admin/services/cacheservice"
	"strings"
	"time"

	"github.com/bytedance/sonic"
	log "github.com/go-admin-team/go-admin-core/logger"
	"github.com/shopspring/decimal"
	"gorm.io/gorm"
)

/*
判断是否触发
*/
func JudgeSpotPrice(trade models.TradeSet) {
	key := fmt.Sprintf(rediskey.PreSpotOrderList, global.EXCHANGE_BINANCE)
	preOrderVal, _ := helper.DefaultRedis.GetAllList(key)
	db := GetDBConnection()

	if len(preOrderVal) == 0 {
		return
	}

	spotApi := SpotRestApi{}
	for _, item := range preOrderVal {
		preOrder := dto.PreOrderRedisList{}
		if err := sonic.Unmarshal([]byte(item), &preOrder); err != nil {
			log.Error("反序列化失败")
			continue
		}

		if preOrder.Symbol == trade.Coin+trade.Currency {
			orderPrice, _ := decimal.NewFromString(preOrder.Price)
			tradePrice, _ := decimal.NewFromString(trade.LastPrice)
			//买入
			if strings.ToUpper(preOrder.Site) == "BUY" && orderPrice.Cmp(tradePrice) >= 0 && orderPrice.Cmp(decimal.Zero) > 0 && tradePrice.Cmp(decimal.Zero) > 0 {
				SpotOrderLock(db, &preOrder, item, spotApi)
			}
		}
	}
}

// 分布式锁下单
// v 预下单信息
// item 预下单源文本
func SpotOrderLock(db *gorm.DB, v *dto.PreOrderRedisList, item string, spotApi SpotRestApi) {
	lock := helper.NewRedisLock(fmt.Sprintf(rediskey.SpotTrigger, v.ApiId, v.Symbol), 20, 5, 100*time.Millisecond)

	if ok, err := lock.AcquireWait(context.Background()); err != nil {
		log.Error("获取锁失败", err)
		return
	} else if ok {
		defer lock.Release()

		key := fmt.Sprintf(rediskey.PreSpotOrderList, global.EXCHANGE_BINANCE)
		preOrder := DbModels.LinePreOrder{}
		if err := db.Where("id = ?", v.Id).First(&preOrder).Error; err != nil {
			log.Error("获取预下单失败", err)

			if errors.Is(err, gorm.ErrRecordNotFound) {
				log.Error("不存在待触发主单", item)
				helper.DefaultRedis.LRem(key, item)
			}

			return
		}

		hasrecord, _ := helper.DefaultRedis.IsElementInList(key, item)

		if !hasrecord {
			log.Error("不存在待触发主单", item)
			return
		}

		price, _ := decimal.NewFromString(v.Price)
		num, _ := decimal.NewFromString(preOrder.Num)
		params := OrderPlacementService{
			ApiId:            v.ApiId,
			Symbol:           v.Symbol,
			Side:             v.Site,
			Type:             preOrder.MainOrderType,
			TimeInForce:      "GTC",
			Price:            price,
			Quantity:         num,
			NewClientOrderId: v.OrderSn,
		}
		preOrderVal, _ := sonic.MarshalString(&v)

		if err := spotApi.OrderPlaceLoop(db, params, 3); err != nil {
			log.Error("下单失败", v.Symbol, " err:", err)
			err := db.Model(&DbModels.LinePreOrder{}).Where("id =? AND status =0", preOrder.Id).Updates(map[string]interface{}{"status": "2", "desc": err.Error()}).Error

			if err != nil {
				log.Error("下单失败后修改订单失败")
			}

			if preOrderVal != "" {
				if _, err := helper.DefaultRedis.LRem(key, preOrderVal); err != nil {
					log.Error("删除redis 预下单失败:", err)
				}
			}

			return
		}

		if preOrderVal != "" {
			if _, err := helper.DefaultRedis.LRem(key, preOrderVal); err != nil {
				log.Error("删除redis 预下单失败:", err)
			}
		}

		if err := db.Model(&DbModels.LinePreOrder{}).Where("id =? ", preOrder.Id).Updates(map[string]interface{}{"trigger_time": time.Now()}).Error; err != nil {
			log.Error("更新预下单状态失败 ordersn:", v.OrderSn, " status:1")
		}
		return
	} else {
		log.Error("获取锁失败")
		return
	}
}

// 判断是否触发止损
func JudgeSpotStopLoss(trade models.TradeSet) {
	key := fmt.Sprintf(rediskey.SpotStopLossList, global.EXCHANGE_BINANCE)
	stopLossVal, _ := helper.DefaultRedis.GetAllList(key)

	if len(stopLossVal) == 0 {
		return
	}

	db := GetDBConnection()
	spotApi := SpotRestApi{}
	setting, err := cacheservice.GetSystemSetting(db)

	if err != nil {
		log.Error("获取系统设置失败")
		return
	}

	tradeSet, err := cacheservice.GetTradeSet(global.EXCHANGE_BINANCE, trade.Coin+trade.Currency, 0)

	if err != nil {
		log.Error("获取交易设置失败")
		return
	}

	for _, item := range stopLossVal {
		stopOrder := dto.StopLossRedisList{}
		if err := sonic.Unmarshal([]byte(item), &stopOrder); err != nil {
			log.Error("反序列化失败")
			continue
		}

		if stopOrder.Symbol == trade.Coin+trade.Currency {
			orderPrice := stopOrder.Price
			tradePrice, _ := decimal.NewFromString(trade.LastPrice)
			//买入
			if strings.ToUpper(stopOrder.Site) == "SELL" &&
				orderPrice.Cmp(tradePrice) >= 0 &&
				orderPrice.Cmp(decimal.Zero) > 0 &&
				tradePrice.Cmp(decimal.Zero) > 0 {

				SpotStopLossTrigger(db, stopOrder, spotApi, setting, tradeSet, key, item)
			}
		}
	}
}

// 触发现货止损
func SpotStopLossTrigger(db *gorm.DB, stopOrder dto.StopLossRedisList, spotApi SpotRestApi, setting DbModels.LineSystemSetting, tradeSet models.TradeSet, key string, item string) {
	lock := helper.NewRedisLock(fmt.Sprintf(rediskey.SpotTrigger, stopOrder.ApiId, stopOrder.Symbol), 20, 5, 100*time.Millisecond)

	if ok, err := lock.AcquireWait(context.Background()); err != nil {
		log.Error("获取锁失败", err)
		return
	} else if ok {
		defer lock.Release()
		takeOrder := DbModels.LinePreOrder{}
		if err := db.Model(&DbModels.LinePreOrder{}).Where("pid =? AND order_type =1", stopOrder.PId).Find(&takeOrder).Error; err != nil {
			log.Error("查询止盈单失败")
			return
		}

		hasrecord, _ := helper.DefaultRedis.IsElementInList(key, item)

		if !hasrecord {
			log.Debug("减仓缓存中不存在", item)
			return
		}

		apiInfo, _ := GetApiInfo(takeOrder.ApiId)

		if apiInfo.Id == 0 {
			log.Error("现货止损 查询api用户不存在")
			return
		}

		var err error
		for x := 1; x <= 4; x++ {
			err = spotApi.CancelOpenOrderByOrderSn(apiInfo, takeOrder.Symbol, takeOrder.OrderSn)

			if err == nil || strings.Contains(err.Error(), "该交易对没有订单") {
				err = nil
				break
			}
		}

		if err != nil {
			log.Error("现货止损撤单失败", err)
			return
		}
		stopPreOrder, _ := GetOrderById(db, stopOrder.Id)
		price := stopOrder.Price.Mul(decimal.NewFromInt(1).Sub(setting.StopLossPremium.Div(decimal.NewFromInt(100)))).Truncate(int32(tradeSet.PriceDigit))
		num := utility.StrToDecimal(takeOrder.Num).Truncate(int32(tradeSet.AmountDigit))

		params := OrderPlacementService{
			ApiId:            takeOrder.ApiId,
			Side:             takeOrder.Site,
			Type:             "LIMIT",
			TimeInForce:      "GTC",
			Symbol:           takeOrder.Symbol,
			Price:            price,
			Quantity:         num,
			NewClientOrderId: stopPreOrder.OrderSn,
		}

		if err := spotApi.OrderPlaceLoop(db, params, 3); err != nil {
			log.Errorf("现货止损挂单失败 id：%s err:%v", stopOrder.Id, err)
		} else {
			if err := db.Model(&DbModels.LinePreOrder{}).Where("id = ? ", stopOrder.Id).Updates(map[string]interface{}{"trigger_time": time.Now()}).Error; err != nil {
				log.Errorf("现货止损更新状态失败 id：%s err:%v", stopOrder.Id, err)
			}
		}

		if _, err := helper.DefaultRedis.LRem(key, item); err != nil {
			log.Errorf("现货止损 删除缓存失败 id:%v err:%v", stopOrder.Id, err)
		}

	} else {
		log.Error("获取锁失败")
	}

}

// 判断是否触发现货减仓
func JudgeSpotReduce(trade models.TradeSet) {
	key := fmt.Sprintf(rediskey.SpotReduceList, global.EXCHANGE_BINANCE)
	db := GetDBConnection()
	spotApi := SpotRestApi{}
	setting, err := cacheservice.GetSystemSetting(db)

	if err != nil {
		log.Error("获取系统设置失败")
		return
	}

	tradePrice, _ := decimal.NewFromString(trade.LastPrice)
	//减仓单减仓策略
	orderReduceVal, _ := helper.DefaultRedis.GetAllList(fmt.Sprintf(rediskey.SpotOrderReduceStrategyList, global.EXCHANGE_BINANCE))
	reduceOrderStrategy := dto.LineOrderReduceStrategyResp{}

	for _, item := range orderReduceVal {
		sonic.Unmarshal([]byte(item), &reduceOrderStrategy)

		for _, item2 := range reduceOrderStrategy.Items {
			if reduceOrderStrategy.Symbol == trade.Coin+trade.Currency {
				//买入
				if strings.ToUpper(reduceOrderStrategy.Side) == "SELL" &&
					item2.TriggerPrice.Cmp(tradePrice) >= 0 &&
					item2.TriggerPrice.Cmp(decimal.Zero) > 0 &&
					tradePrice.Cmp(decimal.Zero) > 0 {
					//todo 生成订单并触发
					// SpotReduceTrigger(db, reduceOrder, spotApi, setting, key, item)
				}
			}
		}
	}

	//减仓单
	reduceVal, _ := helper.DefaultRedis.GetAllList(key)

	for _, item := range reduceVal {
		reduceOrder := ReduceListItem{}
		if err := sonic.Unmarshal([]byte(item), &reduceOrder); err != nil {
			log.Error("反序列化失败")
			continue
		}

		if reduceOrder.Symbol == trade.Coin+trade.Currency {
			orderPrice := reduceOrder.Price
			//买入
			if strings.ToUpper(reduceOrder.Side) == "SELL" &&
				orderPrice.Cmp(tradePrice) >= 0 &&
				orderPrice.Cmp(decimal.Zero) > 0 &&
				tradePrice.Cmp(decimal.Zero) > 0 {

				SpotReduceTrigger(db, reduceOrder, spotApi, setting, key, item)
			}
		}
	}
}

// 触发现货减仓
func SpotReduceTrigger(db *gorm.DB, reduceOrder ReduceListItem, spotApi SpotRestApi, setting DbModels.LineSystemSetting, key, item string) {
	tradeSet, err := cacheservice.GetTradeSet(global.EXCHANGE_BINANCE, reduceOrder.Symbol, 0)

	if err != nil {
		log.Error("获取交易设置失败")
		return
	}
	lock := helper.NewRedisLock(fmt.Sprintf(rediskey.SpotTrigger, reduceOrder.ApiId, reduceOrder.Symbol), 20, 5, 100*time.Millisecond)

	if ok, err := lock.AcquireWait(context.Background()); err != nil {
		log.Error("获取锁失败", err)
		return
	} else if ok {
		defer lock.Release()
		takeOrders := make([]DbModels.LinePreOrder, 0)
		if err := db.Model(&DbModels.LinePreOrder{}).Where("main_id =? AND order_type =1 AND status IN (1,5)", reduceOrder.MainId).Find(&takeOrders).Error; err != nil {
			log.Error("查询止盈单失败")
			return
		}
		hasrecord, _ := helper.DefaultRedis.IsElementInList(key, item)

		if !hasrecord {
			log.Debug("减仓缓存中不存在", item)
			return
		}

		apiInfo, _ := GetApiInfo(reduceOrder.ApiId)

		if apiInfo.Id == 0 {
			log.Error("现货减仓 查询api用户不存在")
			return
		}

		for _, takeOrder := range takeOrders {
			err := CancelOpenOrderByOrderSnLoop(apiInfo, takeOrder.Symbol, takeOrder.OrderSn)

			if err != nil {
				log.Error("现货止盈撤单失败", err)
				return
			}
		}
		price := reduceOrder.Price.Mul(decimal.NewFromInt(1).Sub(setting.ReducePremium.Div(decimal.NewFromInt(100)))).Truncate(int32(tradeSet.PriceDigit))

		params := OrderPlacementService{
			ApiId:            reduceOrder.ApiId,
			Side:             reduceOrder.Side,
			Type:             "LIMIT",
			TimeInForce:      "GTC",
			Symbol:           reduceOrder.Symbol,
			Price:            price,
			Quantity:         reduceOrder.Num,
			NewClientOrderId: reduceOrder.OrderSn,
		}

		if err := spotApi.OrderPlaceLoop(db, params, 3); err != nil {
			log.Errorf("现货减仓挂单失败 id：%s err:%v", reduceOrder.Id, err)

			if err2 := db.Model(&DbModels.LinePreOrder{}).
				Where("id =? AND status =0", reduceOrder.Id).
				Updates(map[string]interface{}{"status": 2, "desc": err.Error()}).Error; err2 != nil {
				log.Errorf("修改现货减仓状态失败 id：%s err:%v", reduceOrder.Id, err2)
			}
		} else {
			if err := db.Model(&DbModels.LinePreOrder{}).Where("id =?", reduceOrder.Id).Updates(map[string]interface{}{"trigger_time": time.Now()}).Error; err != nil {
				log.Error("更新预下单触发事件失败 ordersn:", reduceOrder.OrderSn)
			}

			if err := db.Model(&DbModels.LinePreOrder{}).
				Where("id =? AND status =0", reduceOrder.Id).
				Updates(map[string]interface{}{"status": 1}).Error; err != nil {
				log.Errorf("修改现货减仓状态失败 id：%s err:%v", reduceOrder.Id, err)
			}

			//处理减仓单减仓策略
			CacheOrderStrategyAndReCreate(db, reduceOrder, 1, tradeSet, setting)
		}

		if _, err := helper.DefaultRedis.LRem(key, item); err != nil {
			log.Errorf("现货减仓 删除缓存失败 id:%v err:%v", reduceOrder.Id, err)
		}
	} else {
		log.Error("获取锁失败")
	}
}

// 判断现货加仓
func JudgeSpotAddPosition(trade models.TradeSet) {
	key := fmt.Sprintf(rediskey.SpotAddPositionList, global.EXCHANGE_BINANCE)
	preOrderVal, _ := helper.DefaultRedis.GetAllList(key)
	db := GetDBConnection()

	if len(preOrderVal) == 0 {
		return
	}

	spotApi := SpotRestApi{}
	for _, item := range preOrderVal {
		preOrder := AddPositionList{}
		if err := sonic.Unmarshal([]byte(item), &preOrder); err != nil {
			log.Error("反序列化失败")
			continue
		}

		if preOrder.Symbol == trade.Coin+trade.Currency {
			orderPrice := preOrder.Price
			tradePrice, _ := decimal.NewFromString(trade.LastPrice)
			//买入
			if strings.ToUpper(preOrder.Side) == "BUY" && orderPrice.Cmp(tradePrice) >= 0 && orderPrice.Cmp(decimal.Zero) > 0 && tradePrice.Cmp(decimal.Zero) > 0 {
				SpotAddPositionTrigger(db, &preOrder, item, spotApi)
			}
		}
	}
}

func SpotAddPositionTrigger(db *gorm.DB, v *AddPositionList, item string, spotApi SpotRestApi) {
	lock := helper.NewRedisLock(fmt.Sprintf(rediskey.SpotTrigger, v.ApiId, v.Symbol), 20, 5, 100*time.Millisecond)

	if ok, err := lock.AcquireWait(context.Background()); err != nil {
		log.Error("获取锁失败", err)
		return
	} else if ok {
		defer lock.Release()

		setting, _ := cacheservice.GetSystemSetting(db)
		tradeSet, _ := cacheservice.GetTradeSet(global.EXCHANGE_BINANCE, v.Symbol, 0)

		if tradeSet.LastPrice == "" {
			log.Errorf("现货加仓触发 查询交易对失败 交易对：%s ordersn:%s", v.Symbol, v.OrderSn)
			return
		}

		key := fmt.Sprintf(rediskey.SpotAddPositionList, global.EXCHANGE_BINANCE)
		preOrder := DbModels.LinePreOrder{}
		if err := db.Where("id = ?", v.Id).First(&preOrder).Error; err != nil {
			log.Error("获取预下单失败", err)

			if errors.Is(err, gorm.ErrRecordNotFound) {
				log.Error("不存在待触发加仓主单", item)
				helper.DefaultRedis.LRem(key, item)
			}

			return
		}

		hasrecord, _ := helper.DefaultRedis.IsElementInList(key, item)

		if !hasrecord {
			log.Error("不存在待触发加仓主单", item)
			return
		}

		price := v.Price
		num, _ := decimal.NewFromString(preOrder.Num)

		if setting.AddPositionPremium.Cmp(decimal.Zero) > 0 {
			price = price.Mul(decimal.NewFromInt(1).Sub(setting.AddPositionPremium.Div(decimal.NewFromInt(100)))).Truncate(int32(tradeSet.PriceDigit))
		}

		params := OrderPlacementService{
			ApiId:            v.ApiId,
			Symbol:           v.Symbol,
			Side:             v.Side,
			Type:             preOrder.MainOrderType,
			TimeInForce:      "GTC",
			Price:            price,
			Quantity:         num.Truncate(int32(tradeSet.AmountDigit)),
			NewClientOrderId: v.OrderSn,
		}
		preOrderVal, _ := sonic.MarshalString(&v)

		if err := spotApi.OrderPlaceLoop(db, params, 3); err != nil {
			log.Error("下单失败", v.Symbol, " err:", err)
			err := db.Model(&DbModels.LinePreOrder{}).Where("id =? AND status =0", preOrder.Id).Updates(map[string]interface{}{"status": "2", "desc": err.Error()}).Error

			if err != nil {
				log.Error("下单失败后修改订单失败")
			}

			if preOrderVal != "" {
				if _, err := helper.DefaultRedis.LRem(key, preOrderVal); err != nil {
					log.Error("删除redis 预下单失败:", err)
				}
			}

			return
		}

		if preOrderVal != "" {
			if _, err := helper.DefaultRedis.LRem(key, preOrderVal); err != nil {
				log.Error("删除redis 预下单失败:", err)
			}
		}

		if err := db.Model(&DbModels.LinePreOrder{}).Where("id =?", preOrder.Id).Updates(map[string]interface{}{"trigger_time": time.Now()}).Error; err != nil {
			log.Error("更新预下单触发事件失败 ordersn:", v.OrderSn)
		}

		if err := db.Model(&DbModels.LinePreOrder{}).Where("id =? AND status ='0'", preOrder.Id).Updates(map[string]interface{}{"status": "1"}).Error; err != nil {
			log.Error("更新预下单状态失败 ordersn:", v.OrderSn, " status:1")
		}
		return
	} else {
		log.Error("获取锁失败")
		return
	}
}