import React from 'react';
import { renderToStaticMarkup } from 'react-dom/server';
import { describe, expect, it, vi } from 'vitest';
import type { BotState } from '../hooks/useWebSocket';
import { dedupeLivePositions, OverviewTab } from './OverviewTab';

vi.mock('../components/AuthContext', () => ({
    useAuth: () => ({
        user: null,
        profile: { role: 'admin' }
    })
}));

vi.mock('../lib/supabaseClient', () => {
    const query: any = {
        select: vi.fn(() => query),
        order: vi.fn(() => query),
        eq: vi.fn(() => query),
        limit: vi.fn(() => Promise.resolve({ data: [], error: null }))
    };

    return {
        supabase: {
            from: vi.fn(() => query)
        }
    };
});

const createBotState = (): BotState => ({
    symbols: {
        'BTC/USDT': {
            price: 70123.12,
            change24h: 1.25,
            changeToday: 0.44,
            session: 'NY',
            volatility: 'High',
            signal: 'BUY',
            signalTime: Date.now() - 120000,
            tradingMode: 'Paper',
            activePosition: null,
            priceHistory: [
                { timestamp: Date.now() - 600000, price: 69990 },
                { timestamp: Date.now(), price: 70123.12 }
            ],
            rules: {
                TrendBiasRule: { passed: true, reason: 'Trend aligned' }
            },
            profileSignals: {
                profileA: {
                    profileName: 'High Risk Scalper',
                    signal: 'BUY',
                    passed: true,
                    reason: 'Rule stack passed'
                }
            },
            indicators: {
                ema50_4h: 68000,
                ema200_4h: 66000,
                rsi_1h: 58
            }
        }
    },
    alerts: [],
    positions: [
        {
            id: 'pos-1',
            symbol: 'BTC/USDT',
            side: 'BUY',
            size: 0.15,
            entryPrice: 70000,
            currentPrice: 70123.12,
            stopLoss: 69000,
            takeProfit: 71500,
            unrealizedPnl: 18.47,
            unrealizedPnlPercent: 0.17,
            marketValue: 10518.47,
            profileId: 'profileA',
            profileName: 'High Risk Scalper',
            tradeId: 'TRD-OVR-1'
        }
    ],
    orders: [],
    history: [
        {
            symbol: 'BTC/USDT',
            side: 'BUY',
            entryPrice: 69000,
            exitPrice: 70000,
            size: 0.1,
            pnl: 100,
            pnlPercent: 1.45,
            reason: 'Target hit',
            timestamp: Date.now() - 3600000,
            profileId: 'profileA',
            trade_id: 'TRD-HIST-1',
            source: 'BOT'
        }
    ],
    settings: {
        executionMode: 'Paper',
        riskPerTrade: 0.01,
        totalCapital: 15000,
        maxOpenTrades: 6,
        isAlgoEnabled: true,
        enabledRules: ['TrendBiasRule', 'MomentumRule']
    },
    uptime: 3600000
});

describe('OverviewTab', () => {
    it('dedupes runtime positions by trade id and preserves profile metadata', () => {
        const baseState = createBotState();
        baseState.positions = [
            {
                ...baseState.positions[0],
                id: 'pos-no-profile',
                profileId: undefined,
                profileName: undefined
            },
            {
                ...baseState.positions[0],
                id: 'pos-profile',
                profileId: 'profileA',
                profileName: 'High Risk Scalper'
            }
        ];

        const deduped = dedupeLivePositions(baseState.positions);
        expect(deduped).toHaveLength(1);
        expect(deduped[0].profileId).toBe('profileA');
        expect(deduped[0].tradeId).toBe('TRD-OVR-1');
    });

    it('renders market readiness with capital, pnl, and signal cards', () => {
        const html = renderToStaticMarkup(
            React.createElement(OverviewTab, { botState: createBotState() })
        );

        expect(html).toContain('Market Readiness');
        expect(html).toContain('Capital Used');
        expect(html).toContain('Net P&L');
        expect(html).toContain('P&L Duration');
        expect(html).toContain('BTC/USDT');
        expect(html).toContain('SIGNAL ACTIVE');
        expect(html).toContain('Win Rate Window');
    });

    it('renders stable fallback values when symbols and history are empty', () => {
        const emptyState = createBotState();
        emptyState.symbols = {};
        emptyState.positions = [];
        emptyState.history = [];

        const html = renderToStaticMarkup(
            React.createElement(OverviewTab, { botState: emptyState })
        );

        expect(html).toContain('Account (Fallback)');
        expect(html).toContain('No signal');
        expect(html).toContain('Awaiting trade history');
    });
});