import { Connection, PublicKey, VersionedTransaction } from '@solana/web3.js';
import { z } from 'zod';
// Constants
export const TOKENS = {
    USDC: 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v',
    SOL: 'So11111111111111111111111111111111111111112',
    IBRLC: '7wxyV4i7iZvayjGN9bXkgJMRnPcnwWnQTPtd9KWjN3vM'
};
// Validation Schemas
const tokenPriceSchema = z.object({
    id: z.string(),
    type: z.string(),
    price: z.string()
});
const swapQuoteSchema = z.object({
    inputMint: z.string(),
    outputMint: z.string(),
    inAmount: z.string(),
    outAmount: z.string(),
    priceImpactPct: z.string(),
    marketInfos: z.array(z.any()),
    swapMode: z.string(),
    otherAmountThreshold: z.string(),
    routePlan: z.array(z.object({
        swapInfo: z.object({
            ammKey: z.string(),
            label: z.string(),
            inputMint: z.string(),
            outputMint: z.string(),
            inAmount: z.string(),
            outAmount: z.string(),
            feeAmount: z.string(),
            feeMint: z.string()
        }),
        percent: z.number()
    }))
});
export class TradingService {
    heliusUrl;
    connection;
    // Used for RPC calls and blockchain interactions
    async getBlockchainData(mintAddress) {
        try {
            const [supply, decimals] = await Promise.all([
                this.connection.getTokenSupply(new PublicKey(mintAddress)),
                this.connection.getTokenAccountBalance(new PublicKey(mintAddress))
            ]);
            return { supply, decimals };
        }
        catch (error) {
            console.error('Error fetching blockchain data:', error);
            return null;
        }
    }
    constructor() {
        const apiKey = process.env.NEXT_PUBLIC_HELIUS_API_KEY;
        if (!apiKey) {
            throw new Error('HELIUS_API_KEY is not configured');
        }
        this.heliusUrl = `https://mainnet.helius-rpc.com/?api-key=${apiKey}`;
        this.connection = new Connection(this.heliusUrl);
    }
    // Token Information
    async getTokenInfo(mintAddress) {
        try {
            const response = await fetch(`https://tokens.jup.ag/token/${mintAddress}`);
            if (!response.ok) {
                if (response.status === 404)
                    return null;
                throw new Error(`HTTP error! status: ${response.status}`);
            }
            return await response.json();
        }
        catch (error) {
            console.error('Error fetching token info:', error);
            throw error;
        }
    }
    // Price Information
    async getTokenPrice(tokenAddress) {
        try {
            const response = await fetch(`https://api.jup.ag/price/v2?ids=${tokenAddress}&showExtraInfo=true`);
            if (!response.ok) {
                throw new Error('Failed to fetch price data');
            }
            const data = await response.json();
            const price = data.data[tokenAddress];
            return price ? tokenPriceSchema.parse(price) : null;
        }
        catch (error) {
            console.error('Error fetching token price:', error);
            return null;
        }
    }
    // Market Analysis
    async analyzeMarket(mintAddress) {
        const [tokenInfo, holders, blockchainData] = await Promise.all([
            this.getTokenInfo(mintAddress),
            this.getTokenHolders(mintAddress),
            this.getBlockchainData(mintAddress)
        ]);
        return {
            tokenInfo,
            holders,
            blockchainData,
            marketMetrics: {
                concentration: this.calculateHolderConcentration(holders),
                activity: await this.getMarketActivity(mintAddress),
                depth: await this.getMarketDepth(mintAddress)
            }
        };
    }
    // Trade Analysis
    async analyzeTradeRoute(inputMint, outputMint, amount) {
        const quote = await this.getSwapQuote(amount, inputMint, outputMint);
        if (!quote)
            throw new Error('Failed to get swap quote');
        const validatedQuote = swapQuoteSchema.parse(quote);
        const route = validatedQuote.routePlan.map(r => r.swapInfo.label);
        const priceImpact = parseFloat(validatedQuote.priceImpactPct);
        const expectedOutput = parseInt(validatedQuote.outAmount) / this.getTokenDecimals(outputMint);
        const slippage = 0.005; // 0.5%
        const minimumOutput = expectedOutput * (1 - slippage);
        // Calculate fees
        const fees = {
            network: validatedQuote.routePlan.reduce((acc, r) => acc + parseInt(r.swapInfo.feeAmount), 0) / 1e9,
            protocol: 0, // Jupiter protocol fees if any
            total: 0
        };
        fees.total = fees.network + fees.protocol;
        // Get market depth
        const marketDepth = await this.getMarketDepth(outputMint);
        return {
            priceImpact,
            expectedOutput,
            minimumOutput,
            route,
            fees,
            marketDepth
        };
    }
    // Swap Execution
    async executeSwap(inputMint, outputMint, amount, wallet // Replace with your wallet type
    ) {
        // Validate inputs
        if (amount <= 0)
            throw new Error('Invalid amount');
        if (!wallet)
            throw new Error('Wallet not connected');
        // Get quote
        const quote = await this.getSwapQuote(amount, inputMint, outputMint);
        if (!quote)
            throw new Error('Failed to get swap quote');
        // Prepare transaction
        const tx = await this.prepareSwapTransaction(quote, wallet.publicKey);
        // Sign and send
        try {
            const signature = await wallet.signAndSendTransaction(tx);
            return { status: 'success', signature, quote };
        }
        catch (error) {
            console.error('Swap execution error:', error);
            return {
                status: 'error',
                message: error instanceof Error ? error.message : 'transaction_failed',
                quote
            };
        }
    }
    // Private helper methods
    getTokenDecimals(mint) {
        switch (mint) {
            case TOKENS.USDC: return 1e6; // 6 decimals
            case TOKENS.IBRLC: return 1e9; // 9 decimals
            default: return 1e9; // Default 9 decimals (SOL)
        }
    }
    async getSwapQuote(amount, inputMint = TOKENS.SOL, outputMint = TOKENS.USDC) {
        const inputAmount = (amount * this.getTokenDecimals(inputMint)).toString();
        const slippageBps = outputMint === TOKENS.IBRLC ? 1000 : 50;
        const params = new URLSearchParams({
            inputMint,
            outputMint,
            amount: inputAmount,
            slippageBps: slippageBps.toString(),
            onlyDirectRoutes: (outputMint === TOKENS.IBRLC).toString(),
            asLegacyTransaction: 'false'
        });
        try {
            const response = await fetch(`https://quote-api.jup.ag/v6/quote?${params}`);
            if (!response.ok)
                return null;
            return await response.json();
        }
        catch (error) {
            console.error('Error getting swap quote:', error);
            return null;
        }
    }
    async prepareSwapTransaction(quote, userPublicKey) {
        const response = await fetch('https://quote-api.jup.ag/v6/swap', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
                quoteResponse: quote,
                userPublicKey: userPublicKey.toString(),
                wrapUnwrapSOL: true,
                computeUnitPriceMicroLamports: 'auto',
                asLegacyTransaction: false
            })
        });
        if (!response.ok) {
            throw new Error(`Swap preparation failed: ${response.statusText}`);
        }
        const { swapTransaction } = await response.json();
        const transactionBuffer = Buffer.from(swapTransaction, 'base64');
        return VersionedTransaction.deserialize(transactionBuffer);
    }
    async getMarketDepth(_mintAddress) {
        // TODO: Implement market depth calculation using Jupiter API
        return {
            inputDepth: 0,
            outputDepth: 0,
            ratio: 0
        };
    }
    async getMarketActivity(_mintAddress) {
        // TODO: Implement market activity tracking
        return {
            volume24h: 0,
            trades24h: 0,
            uniqueTraders24h: 0
        };
    }
    calculateHolderConcentration(holders) {
        // Implement holder concentration calculation
        return {
            gini: 0,
            top10Percentage: 0,
            uniqueHolders: holders.length
        };
    }
    async getTokenHolders(_mintAddress) {
        // TODO: Implement holder fetching using Helius API
        return [];
    }
}
// Export singleton instance
export const tradingService = new TradingService();
