package main

import (
	"sort"
)

// Exchange names — only Bitget and HyperLiquid are trading exchanges
const (
	ExHyperLiquid = "HyperLiquid"
	ExBitget      = "Bitget"
)

// Taker fee rates (%) — for IOC market orders on trading exchanges
var takerFees = map[string]float64{
	ExHyperLiquid: 0.045,
	ExBitget:      0.060,
}

// TickerCoins defines all coins we monitor.
var TrackedCoins = []TrackedCoin{
	{Name: "DOGE", BN: "DOGEUSDT", BG: "DOGEUSDT", HL: "DOGE"},
	{Name: "LINK", BN: "LINKUSDT", BG: "LINKUSDT", HL: "LINK"},
	{Name: "ONDO", BN: "ONDOUSDT", BG: "ONDOUSDT", HL: "ONDO"},
	{Name: "OP", BN: "OPUSDT", BG: "OPUSDT", HL: "OP"},
	{Name: "WIF", BN: "WIFUSDT", BG: "WIFUSDT", HL: "WIF"},
	{Name: "ARB", BN: "ARBUSDT", BG: "ARBUSDT", HL: "ARB"},
	{Name: "0G", BN: "", BG: "0GUSDT", HL: "0G"},
	{Name: "2Z", BN: "", BG: "2ZUSDT", HL: "2Z"},
	{Name: "AAVE", BN: "", BG: "AAVEUSDT", HL: "AAVE"},
	{Name: "ACE", BN: "", BG: "ACEUSDT", HL: "ACE"},
	{Name: "ADA", BN: "", BG: "ADAUSDT", HL: "ADA"},
	{Name: "AERO", BN: "", BG: "AEROUSDT", HL: "AERO"},
	{Name: "AIXBT", BN: "", BG: "AIXBTUSDT", HL: "AIXBT"},
	{Name: "ALGO", BN: "", BG: "ALGOUSDT", HL: "ALGO"},
	{Name: "ALT", BN: "", BG: "ALTUSDT", HL: "ALT"},
	{Name: "ANIME", BN: "", BG: "ANIMEUSDT", HL: "ANIME"},
	{Name: "APE", BN: "", BG: "APEUSDT", HL: "APE"},
	{Name: "APT", BN: "", BG: "APTUSDT", HL: "APT"},
	{Name: "AR", BN: "", BG: "ARUSDT", HL: "AR"},
	{Name: "ARK", BN: "", BG: "ARKUSDT", HL: "ARK"},
	{Name: "ASTER", BN: "", BG: "ASTERUSDT", HL: "ASTER"},
	{Name: "ATOM", BN: "", BG: "ATOMUSDT", HL: "ATOM"},
	{Name: "AVAX", BN: "", BG: "AVAXUSDT", HL: "AVAX"},
	{Name: "AVNT", BN: "", BG: "AVNTUSDT", HL: "AVNT"},
	{Name: "AXS", BN: "", BG: "AXSUSDT", HL: "AXS"},
	{Name: "AZTEC", BN: "", BG: "AZTECUSDT", HL: "AZTEC"},
	{Name: "BABY", BN: "", BG: "BABYUSDT", HL: "BABY"},
	{Name: "BANANA", BN: "", BG: "BANANAUSDT", HL: "BANANA"},
	{Name: "BCH", BN: "", BG: "BCHUSDT", HL: "BCH"},
	{Name: "BERA", BN: "", BG: "BERAUSDT", HL: "BERA"},
	{Name: "BIGTIME", BN: "", BG: "BIGTIMEUSDT", HL: "BIGTIME"},
	{Name: "BIO", BN: "", BG: "BIOUSDT", HL: "BIO"},
	{Name: "BLUR", BN: "", BG: "BLURUSDT", HL: "BLUR"},
	{Name: "BNB", BN: "", BG: "BNBUSDT", HL: "BNB"},
	{Name: "BOME", BN: "", BG: "BOMEUSDT", HL: "BOME"},
	{Name: "BRETT", BN: "", BG: "BRETTUSDT", HL: "BRETT"},
	{Name: "BSV", BN: "", BG: "BSVUSDT", HL: "BSV"},
	{Name: "BTC", BN: "", BG: "BTCUSDT", HL: "BTC"},
	{Name: "CAKE", BN: "", BG: "CAKEUSDT", HL: "CAKE"},
	{Name: "CC", BN: "", BG: "CCUSDT", HL: "CC"},
	{Name: "CELO", BN: "", BG: "CELOUSDT", HL: "CELO"},
	{Name: "CFX", BN: "", BG: "CFXUSDT", HL: "CFX"},
	{Name: "CHILLGUY", BN: "", BG: "CHILLGUYUSDT", HL: "CHILLGUY"},
	{Name: "CHIP", BN: "", BG: "CHIPUSDT", HL: "CHIP"},
	{Name: "COMP", BN: "", BG: "COMPUSDT", HL: "COMP"},
	{Name: "CRV", BN: "", BG: "CRVUSDT", HL: "CRV"},
	{Name: "DASH", BN: "", BG: "DASHUSDT", HL: "DASH"},
	{Name: "DOOD", BN: "", BG: "DOODUSDT", HL: "DOOD"},
	{Name: "DOT", BN: "", BG: "DOTUSDT", HL: "DOT"},
	{Name: "DYDX", BN: "", BG: "DYDXUSDT", HL: "DYDX"},
	{Name: "DYM", BN: "", BG: "DYMUSDT", HL: "DYM"},
	{Name: "EIGEN", BN: "", BG: "EIGENUSDT", HL: "EIGEN"},
	{Name: "ENA", BN: "", BG: "ENAUSDT", HL: "ENA"},
	{Name: "ENS", BN: "", BG: "ENSUSDT", HL: "ENS"},
	{Name: "ETC", BN: "", BG: "ETCUSDT", HL: "ETC"},
	{Name: "ETH", BN: "", BG: "ETHUSDT", HL: "ETH"},
	{Name: "ETHFI", BN: "", BG: "ETHFIUSDT", HL: "ETHFI"},
	{Name: "FARTCOIN", BN: "", BG: "FARTCOINUSDT", HL: "FARTCOIN"},
	{Name: "FET", BN: "", BG: "FETUSDT", HL: "FET"},
	{Name: "FIL", BN: "", BG: "FILUSDT", HL: "FIL"},
	{Name: "FOGO", BN: "", BG: "FOGOUSDT", HL: "FOGO"},
	{Name: "GALA", BN: "", BG: "GALAUSDT", HL: "GALA"},
	{Name: "GAS", BN: "", BG: "GASUSDT", HL: "GAS"},
	{Name: "GMT", BN: "", BG: "GMTUSDT", HL: "GMT"},
	{Name: "GMX", BN: "", BG: "GMXUSDT", HL: "GMX"},
	{Name: "GOAT", BN: "", BG: "GOATUSDT", HL: "GOAT"},
	{Name: "GRASS", BN: "", BG: "GRASSUSDT", HL: "GRASS"},
	{Name: "GRIFFAIN", BN: "", BG: "GRIFFAINUSDT", HL: "GRIFFAIN"},
	{Name: "HBAR", BN: "", BG: "HBARUSDT", HL: "HBAR"},
	{Name: "HYPE", BN: "", BG: "HYPEUSDT", HL: "HYPE"},
	{Name: "HYPER", BN: "", BG: "HYPERUSDT", HL: "HYPER"},
	{Name: "ICP", BN: "", BG: "ICPUSDT", HL: "ICP"},
	{Name: "IMX", BN: "", BG: "IMXUSDT", HL: "IMX"},
	{Name: "INIT", BN: "", BG: "INITUSDT", HL: "INIT"},
	{Name: "INJ", BN: "", BG: "INJUSDT", HL: "INJ"},
	{Name: "IO", BN: "", BG: "IOUSDT", HL: "IO"},
	{Name: "IOTA", BN: "", BG: "IOTAUSDT", HL: "IOTA"},
	{Name: "IP", BN: "", BG: "IPUSDT", HL: "IP"},
	{Name: "JTO", BN: "", BG: "JTOUSDT", HL: "JTO"},
	{Name: "JUP", BN: "", BG: "JUPUSDT", HL: "JUP"},
	{Name: "KAITO", BN: "", BG: "KAITOUSDT", HL: "KAITO"},
	{Name: "KAS", BN: "", BG: "KASUSDT", HL: "KAS"},
	{Name: "LAYER", BN: "", BG: "LAYERUSDT", HL: "LAYER"},
	{Name: "LDO", BN: "", BG: "LDOUSDT", HL: "LDO"},
	{Name: "LINEA", BN: "", BG: "LINEAUSDT", HL: "LINEA"},
	{Name: "LIT", BN: "", BG: "LITUSDT", HL: "LIT"},
	{Name: "LTC", BN: "", BG: "LTCUSDT", HL: "LTC"},
	{Name: "MANTA", BN: "", BG: "MANTAUSDT", HL: "MANTA"},
	{Name: "MAV", BN: "", BG: "MAVUSDT", HL: "MAV"},
	{Name: "ME", BN: "", BG: "MEUSDT", HL: "ME"},
	{Name: "MEGA", BN: "", BG: "MEGAUSDT", HL: "MEGA"},
	{Name: "MELANIA", BN: "", BG: "MELANIAUSDT", HL: "MELANIA"},
	{Name: "MEME", BN: "", BG: "MEMEUSDT", HL: "MEME"},
	{Name: "MERL", BN: "", BG: "MERLUSDT", HL: "MERL"},
	{Name: "MET", BN: "", BG: "METUSDT", HL: "MET"},
	{Name: "MEW", BN: "", BG: "MEWUSDT", HL: "MEW"},
	{Name: "MINA", BN: "", BG: "MINAUSDT", HL: "MINA"},
	{Name: "MON", BN: "", BG: "MONUSDT", HL: "MON"},
	{Name: "MOODENG", BN: "", BG: "MOODENGUSDT", HL: "MOODENG"},
	{Name: "MORPHO", BN: "", BG: "MORPHOUSDT", HL: "MORPHO"},
	{Name: "MOVE", BN: "", BG: "MOVEUSDT", HL: "MOVE"},
	{Name: "NEAR", BN: "", BG: "NEARUSDT", HL: "NEAR"},
	{Name: "NEO", BN: "", BG: "NEOUSDT", HL: "NEO"},
	{Name: "NIL", BN: "", BG: "NILUSDT", HL: "NIL"},
	{Name: "NOT", BN: "", BG: "NOTUSDT", HL: "NOT"},
	{Name: "NXPC", BN: "", BG: "NXPCUSDT", HL: "NXPC"},
	{Name: "ORDI", BN: "", BG: "ORDIUSDT", HL: "ORDI"},
	{Name: "PAXG", BN: "", BG: "PAXGUSDT", HL: "PAXG"},
	{Name: "PENDLE", BN: "", BG: "PENDLEUSDT", HL: "PENDLE"},
	{Name: "PENGU", BN: "", BG: "PENGUUSDT", HL: "PENGU"},
	{Name: "PEOPLE", BN: "", BG: "PEOPLEUSDT", HL: "PEOPLE"},
	{Name: "PNUT", BN: "", BG: "PNUTUSDT", HL: "PNUT"},
	{Name: "POL", BN: "", BG: "POLUSDT", HL: "POL"},
	{Name: "POLYX", BN: "", BG: "POLYXUSDT", HL: "POLYX"},
	{Name: "POPCAT", BN: "", BG: "POPCATUSDT", HL: "POPCAT"},
	{Name: "PROVE", BN: "", BG: "PROVEUSDT", HL: "PROVE"},
	{Name: "PUMP", BN: "", BG: "PUMPUSDT", HL: "PUMP"},
	{Name: "PYTH", BN: "", BG: "PYTHUSDT", HL: "PYTH"},
	{Name: "RENDER", BN: "", BG: "RENDERUSDT", HL: "RENDER"},
	{Name: "RESOLV", BN: "", BG: "RESOLVUSDT", HL: "RESOLV"},
	{Name: "REZ", BN: "", BG: "REZUSDT", HL: "REZ"},
	{Name: "RSR", BN: "", BG: "RSRUSDT", HL: "RSR"},
	{Name: "RUNE", BN: "", BG: "RUNEUSDT", HL: "RUNE"},
	{Name: "S", BN: "", BG: "SUSDT", HL: "S"},
	{Name: "SAGA", BN: "", BG: "SAGAUSDT", HL: "SAGA"},
	{Name: "SAND", BN: "", BG: "SANDUSDT", HL: "SAND"},
	{Name: "SEI", BN: "", BG: "SEIUSDT", HL: "SEI"},
	{Name: "SKR", BN: "", BG: "SKRUSDT", HL: "SKR"},
	{Name: "SKY", BN: "", BG: "SKYUSDT", HL: "SKY"},
	{Name: "SNX", BN: "", BG: "SNXUSDT", HL: "SNX"},
	{Name: "SOL", BN: "", BG: "SOLUSDT", HL: "SOL"},
	{Name: "SOPH", BN: "", BG: "SOPHUSDT", HL: "SOPH"},
	{Name: "SPX", BN: "", BG: "SPXUSDT", HL: "SPX"},
	{Name: "STABLE", BN: "", BG: "STABLEUSDT", HL: "STABLE"},
	{Name: "STBL", BN: "", BG: "STBLUSDT", HL: "STBL"},
	{Name: "STRK", BN: "", BG: "STRKUSDT", HL: "STRK"},
	{Name: "STX", BN: "", BG: "STXUSDT", HL: "STX"},
	{Name: "SUI", BN: "", BG: "SUIUSDT", HL: "SUI"},
	{Name: "SUPER", BN: "", BG: "SUPERUSDT", HL: "SUPER"},
	{Name: "SUSHI", BN: "", BG: "SUSHIUSDT", HL: "SUSHI"},
	{Name: "SYRUP", BN: "", BG: "SYRUPUSDT", HL: "SYRUP"},
	{Name: "TAO", BN: "", BG: "TAOUSDT", HL: "TAO"},
	{Name: "TIA", BN: "", BG: "TIAUSDT", HL: "TIA"},
	{Name: "TNSR", BN: "", BG: "TNSRUSDT", HL: "TNSR"},
	{Name: "TON", BN: "", BG: "TONUSDT", HL: "TON"},
	{Name: "TRB", BN: "", BG: "TRBUSDT", HL: "TRB"},
	{Name: "TRUMP", BN: "", BG: "TRUMPUSDT", HL: "TRUMP"},
	{Name: "TRX", BN: "", BG: "TRXUSDT", HL: "TRX"},
	{Name: "TURBO", BN: "", BG: "TURBOUSDT", HL: "TURBO"},
	{Name: "UMA", BN: "", BG: "UMAUSDT", HL: "UMA"},
	{Name: "UNI", BN: "", BG: "UNIUSDT", HL: "UNI"},
	{Name: "USTC", BN: "", BG: "USTCUSDT", HL: "USTC"},
	{Name: "USUAL", BN: "", BG: "USUALUSDT", HL: "USUAL"},
	{Name: "VIRTUAL", BN: "", BG: "VIRTUALUSDT", HL: "VIRTUAL"},
	{Name: "VVV", BN: "", BG: "VVVUSDT", HL: "VVV"},
	{Name: "W", BN: "", BG: "WUSDT", HL: "W"},
	{Name: "WCT", BN: "", BG: "WCTUSDT", HL: "WCT"},
	{Name: "WLD", BN: "", BG: "WLDUSDT", HL: "WLD"},
	{Name: "WLFI", BN: "", BG: "WLFIUSDT", HL: "WLFI"},
	{Name: "XAI", BN: "", BG: "XAIUSDT", HL: "XAI"},
	{Name: "XLM", BN: "", BG: "XLMUSDT", HL: "XLM"},
	{Name: "XMR", BN: "", BG: "XMRUSDT", HL: "XMR"},
	{Name: "XPL", BN: "", BG: "XPLUSDT", HL: "XPL"},
	{Name: "XRP", BN: "", BG: "XRPUSDT", HL: "XRP"},
	{Name: "YGG", BN: "", BG: "YGGUSDT", HL: "YGG"},
	{Name: "ZEC", BN: "", BG: "ZECUSDT", HL: "ZEC"},
	{Name: "ZEN", BN: "", BG: "ZENUSDT", HL: "ZEN"},
	{Name: "ZETA", BN: "", BG: "ZETAUSDT", HL: "ZETA"},
	{Name: "ZK", BN: "", BG: "ZKUSDT", HL: "ZK"},
	{Name: "ZORA", BN: "", BG: "ZORAUSDT", HL: "ZORA"},
	{Name: "ZRO", BN: "", BG: "ZROUSDT", HL: "ZRO"},
}

// netProfit calculates net profit % after fees for a complete round trip (entry + exit).
// NOTE: Does NOT swap prices — callers (ScanArbWithFees) pass prices in explicit buy/sell order
// and try both directions via addPair. Using exchange.CalcNetProfit would double-swap (B#6).
func netProfit(buyPrice, sellPrice, buyFee, sellFee float64) float64 {
	if buyPrice <= 0 || sellPrice <= 0 {
		return 0
	}
	// Entry: buy at buyPrice (pay buyFee), sell short at sellPrice (pay sellFee)
	cost := buyPrice * (1 + buyFee/100)
	revenue := sellPrice * (1 - sellFee/100)
	// Exit: sell long (pay sellFee), buy back short (pay buyFee)
	// Total fees = 2 * (buyFee + sellFee), first round already in formula above
	return (revenue/cost - 1)*100 - (buyFee + sellFee)
}

// ScanBGHL scans coins for arbitrage ONLY between Bitget and HyperLiquid (P3-1).
// Returns both directions (BG->HL and HL->BG) sorted by net profit descending.
func ScanBGHL(store *PriceStore) []*ArbOpportunity {
	snapshot := store.GetAll()
	var results []*ArbOpportunity

	for _, coin := range TrackedCoins {
		exMap := snapshot[coin.Name]
		if exMap == nil {
			continue
		}
		bgP := exMap[ExBitget]
		hlP := exMap[ExHyperLiquid]
		if bgP <= 0 || hlP <= 0 {
			continue
		}

		// BG->HL: buy cheap at Bitget, sell expensive at HyperLiquid
		profitBG := netProfit(bgP, hlP, takerFees[ExBitget], takerFees[ExHyperLiquid])
		// HL->BG: buy cheap at HyperLiquid, sell expensive at Bitget
		profitHL := netProfit(hlP, bgP, takerFees[ExHyperLiquid], takerFees[ExBitget])

		grossBG := (hlP - bgP) / bgP * 100
		grossHL := (bgP - hlP) / hlP * 100

		results = append(results, &ArbOpportunity{
			Coin:       coin.Name,
			Direction:  "BG->HL",
			BuyEx:      ExBitget,
			SellEx:     ExHyperLiquid,
			BuyPrice:   bgP,
			SellPrice:  hlP,
			NetProfit:  profitBG,
			GrossBasis: grossBG,
		}, &ArbOpportunity{
			Coin:       coin.Name,
			Direction:  "HL->BG",
			BuyEx:      ExHyperLiquid,
			SellEx:     ExBitget,
			BuyPrice:   hlP,
			SellPrice:  bgP,
			NetProfit:  profitHL,
			GrossBasis: grossHL,
		})
	}

	sort.Slice(results, func(i, j int) bool {
		return results[i].NetProfit > results[j].NetProfit
	})

	return results
}