// src/services/blockchain/defi/liquidityManager.ts
import { EventEmitter } from 'events';
export class LiquidityManager extends EventEmitter {
    connection;
    whirlpoolClient;
    meteoraClient;
    positions;
    strategies;
    UPDATE_INTERVAL = 300000; // 5 minutes
    constructor(connection, whirlpoolClient, meteoraClient) {
        super();
        this.connection = connection;
        this.whirlpoolClient = whirlpoolClient;
        this.meteoraClient = meteoraClient;
        this.positions = new Map();
        this.strategies = new Map();
        this.startMonitoring();
    }
    startMonitoring() {
        setInterval(() => {
            this.monitorPositions();
        }, this.UPDATE_INTERVAL);
    }
    async addLiquidity(protocol, tokenA, tokenB, amountA, amountB, range) {
        try {
            let positionId;
            if (protocol === 'orca') {
                positionId = await this.addOrcaLiquidity(tokenA, tokenB, amountA, amountB, range);
            }
            else {
                positionId = await this.addMeteoraLiquidity(tokenA, tokenB, amountA, amountB);
            }
            const position = {
                id: positionId,
                protocol,
                tokenA,
                tokenB,
                amountA,
                amountB,
                fees: 0,
                apy: 0,
                range,
                timestamp: Date.now()
            };
            this.positions.set(positionId, position);
            this.emit('liquidityAdded', position);
            return positionId;
        }
        catch (error) {
            console.error('Error adding liquidity:', error);
            throw error;
        }
    }
    async addOrcaLiquidity(tokenA, tokenB, amountA, amountB, range) {
        try {
            // Implement Orca Whirlpool liquidity addition
            return 'position-id';
        }
        catch (error) {
            console.error('Error adding Orca liquidity:', error);
            throw error;
        }
    }
    async addMeteoraLiquidity(tokenA, tokenB, amountA, amountB) {
        try {
            // Implement Meteora liquidity addition
            return 'position-id';
        }
        catch (error) {
            console.error('Error adding Meteora liquidity:', error);
            throw error;
        }
    }
    async removeLiquidity(positionId, percentage = 100) {
        const position = this.positions.get(positionId);
        if (!position) {
            throw new Error('Position not found');
        }
        try {
            let result;
            if (position.protocol === 'orca') {
                result = await this.removeOrcaLiquidity(position, percentage);
            }
            else {
                result = await this.removeMeteoraLiquidity(position, percentage);
            }
            if (percentage === 100) {
                this.positions.delete(positionId);
            }
            else {
                position.amountA *= (100 - percentage) / 100;
                position.amountB *= (100 - percentage) / 100;
                this.positions.set(positionId, position);
            }
            this.emit('liquidityRemoved', {
                positionId,
                percentage,
                result
            });
            return result;
        }
        catch (error) {
            console.error('Error removing liquidity:', error);
            throw error;
        }
    }
    async removeOrcaLiquidity(position, percentage) {
        try {
            // Implement Orca Whirlpool liquidity removal
            return {
                tokenA: 0,
                tokenB: 0,
                fees: 0
            };
        }
        catch (error) {
            console.error('Error removing Orca liquidity:', error);
            throw error;
        }
    }
    async removeMeteoraLiquidity(position, percentage) {
        try {
            // Implement Meteora liquidity removal
            return {
                tokenA: 0,
                tokenB: 0,
                fees: 0
            };
        }
        catch (error) {
            console.error('Error removing Meteora liquidity:', error);
            throw error;
        }
    }
    async rebalancePosition(positionId) {
        const position = this.positions.get(positionId);
        if (!position) {
            throw new Error('Position not found');
        }
        const strategy = this.getStrategyForPosition(position);
        if (!strategy) {
            throw new Error('No strategy found for position');
        }
        try {
            const poolMetrics = await this.getPoolMetrics(position);
            if (this.needsRebalancing(position, poolMetrics, strategy)) {
                await this.executeRebalance(position, poolMetrics, strategy);
            }
        }
        catch (error) {
            console.error('Error rebalancing position:', error);
            throw error;
        }
    }
    async executeRebalance(position, metrics, strategy) {
        // Calculate optimal amounts
        const optimalAmounts = this.calculateOptimalAmounts(position, metrics, strategy);
        // Remove existing liquidity
        await this.removeLiquidity(position.id);
        // Add new liquidity with optimal amounts
        await this.addLiquidity(position.protocol, position.tokenA, position.tokenB, optimalAmounts.amountA, optimalAmounts.amountB, this.calculateOptimalRange(metrics, strategy));
        this.emit('positionRebalanced', {
            positionId: position.id,
            oldAmounts: {
                tokenA: position.amountA,
                tokenB: position.amountB
            },
            newAmounts: optimalAmounts
        });
    }
    calculateOptimalAmounts(position, metrics, strategy) {
        // Implement optimal amount calculation based on strategy
        return {
            amountA: position.amountA,
            amountB: position.amountB
        };
    }
    calculateOptimalRange(metrics, strategy) {
        // Implement range calculation based on volatility and strategy
        return {
            lower: 0,
            upper: 0
        };
    }
    async monitorPositions() {
        for (const position of this.positions.values()) {
            try {
                // Update position metrics
                const metrics = await this.getPoolMetrics(position);
                // Check if rebalancing is needed
                const strategy = this.getStrategyForPosition(position);
                if (strategy && this.needsRebalancing(position, metrics, strategy)) {
                    this.emit('rebalanceNeeded', {
                        positionId: position.id,
                        metrics
                    });
                }
                // Update position data
                position.apy = metrics.apy;
                position.fees = await this.getAccumulatedFees(position);
                this.positions.set(position.id, position);
            }
            catch (error) {
                console.error(`Error monitoring position ${position.id}:`, error);
            }
        }
    }
    async getPoolMetrics(position) {
        // Implement pool metrics fetching
        return {
            tvl: 0,
            volume24h: 0,
            fees24h: 0,
            apy: 0,
            volatility: 0,
            utilization: 0
        };
    }
    async getAccumulatedFees(position) {
        // Implement fee calculation
        return 0;
    }
    needsRebalancing(position, metrics, strategy) {
        // Check if rebalancing is needed based on strategy parameters
        return false;
    }
    getStrategyForPosition(position) {
        return Array.from(this.strategies.values())
            .find(s => s.tokenPair[0] === position.tokenA &&
            s.tokenPair[1] === position.tokenB) || null;
    }
    addStrategy(strategy) {
        this.strategies.set(strategy.id, strategy);
        this.emit('strategyAdded', strategy);
    }
    removeStrategy(strategyId) {
        this.strategies.delete(strategyId);
        this.emit('strategyRemoved', strategyId);
    }
    getPositions() {
        return Array.from(this.positions.values());
    }
    getStrategies() {
        return Array.from(this.strategies.values());
    }
}
