import { describe, it, expect } from 'vitest';
import { updateObservationsAfterHand, updateBetSizing, updateTimingStats } from '$lib/game/observation-tracker';
import { createInitialState } from '$lib/game/state';
import { createEmptyObservationStats } from '$lib/types/observation-stats';

describe('Observation Tracker', () => {
  it('tracks VPIP correctly when player raises', () => {
    const state = createInitialState(4, 1000);
    state.observationData['player-1']!.handsPlayed = 10;
    state.observationData['player-1']!.volPotEntries = 3;

    // Simulate player-1 raising (voluntarily entering pot)
    state.actionHistory.push({
      playerId: 'player-1',
      type: 'raise',
      amount: 20,
      timestamp: Date.now()
    });

    const newState = updateObservationsAfterHand(state);
    expect(newState.observationData['player-1']!.volPotEntries).toBe(4);
    expect(newState.observationData['player-1']!.handsPlayed).toBe(11);
  });

  it('tracks PFR correctly when player raises pre-flop', () => {
    const state = createInitialState(4, 1000);
    state.observationData['player-1']!.handsPlayed = 10;
    state.observationData['player-1']!.preFlopRaises = 2;

    state.actionHistory.push({
      playerId: 'player-1',
      type: 'raise',
      amount: 30,
      timestamp: Date.now()
    });

    const newState = updateObservationsAfterHand(state);
    expect(newState.observationData['player-1']!.preFlopRaises).toBe(3);
  });

  it('does not count check as VPIP entry', () => {
    const state = createInitialState(4, 1000);
    state.observationData['player-1']!.handsPlayed = 10;
    state.observationData['player-1']!.volPotEntries = 5;

    state.actionHistory.push({
      playerId: 'player-1',
      type: 'check',
      timestamp: Date.now()
    });

    const newState = updateObservationsAfterHand(state);
    expect(newState.observationData['player-1']!.volPotEntries).toBe(5);
  });

  it('updates bet sizing profile', () => {
    const stats = createEmptyObservationStats();
    updateBetSizing(stats, 'flop', 30, 100);
    expect(stats.betSizingFlop.averagePercent).toBeGreaterThan(0);
    expect(stats.betSizingFlop.pattern).toBe('small');
  });

  it('updates timing stats', () => {
    const stats = createEmptyObservationStats();
    updateTimingStats(stats, 'call', 2.5);
    expect(stats.timing.avgCallTime).toBe(2.5);
    expect(stats.timing.avgDecisionTime).toBeGreaterThan(0);
  });
});