package logic

import (
	"big-qmt/go-client/config"
	"sync"
	"time"
)

type dipWatch struct {
	LastClose float64
	ExpiresAt time.Time
}

var openDip = struct {
	mu    sync.Mutex
	store map[string]dipWatch
}{store: map[string]dipWatch{}}

var posDip = struct {
	mu    sync.Mutex
	store map[string]dipWatch
}{store: map[string]dipWatch{}}

func dipTriggered(mu *sync.Mutex, store map[string]dipWatch, tag, code string, price float64) bool {
	if price <= 0 {
		return false
	}
	mu.Lock()
	defer mu.Unlock()
	now := time.Now()
	watch, ok := store[code]
	if !ok || now.After(watch.ExpiresAt) || now.Equal(watch.ExpiresAt) {
		store[code] = dipWatch{LastClose: price, ExpiresAt: now.Add(time.Duration(config.Account.WatchTimeoutSec) * time.Second)}
		logf("INFO", "[%s-观察] %s 现价=%.2f", tag, code, price)
		return false
	}
	if price < watch.LastClose {
		watch.LastClose = price
		watch.ExpiresAt = now.Add(time.Duration(config.Account.WatchTimeoutSec) * time.Second)
		store[code] = watch
		logf("INFO", "[%s-下跌] %s 刷新低点=%.2f", tag, code, price)
		return false
	}
	rebound := (price - watch.LastClose) / watch.LastClose * 100
	if rebound <= 0 {
		return false
	}
	if rebound < config.Account.ReboundThreshold {
		logf("INFO", "[%s-等待] %s 反弹=%.2f%% 阈值=%.2f%%", tag, code, rebound, config.Account.ReboundThreshold)
		return false
	}
	delete(store, code)
	logf("INFO", "[%s-触发] %s 反弹=%.2f%% 低点=%.2f", tag, code, rebound, watch.LastClose)
	return true
}