feat: Feature 2.2 — Line Movement + Cascade Detection

Line movement system:
- Baseline capture on first odds fetch of the day
- Movement detection >= 0.5 points with direction (up/down)
- Sharp money heuristic (sharp_action/public_action/unknown)
- GET /api/movements with player, stat_type, min_movement filters
- Movements included in GET /api/odds/nba live responses

Cascade detection system:
- Scratch detection: player props disappear from 2+ books
- Affected user lookup via scan_sessions + picks
- Parlay re-grade without scratched legs
- cascade_alerts created for affected users
- GET /api/alerts (Analyst/Desk only), PATCH /api/alerts/:id/read

Zero extra Odds API credits — all detection piggybacks on existing fetches.
Migration 002: line_baselines, line_movements, cascade_alerts tables.

30 new tests, 188 total (161 Node.js + 27 Python), all passing.
Phase 2 Core Product COMPLETE.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Kev
2026-03-21 14:21:34 -04:00
parent 411cb6f196
commit 2366660f5e
16 changed files with 1450 additions and 41 deletions
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const request = require('supertest');
// Mock Redis
const mockRedis = { get: jest.fn(), set: jest.fn(), hset: jest.fn(), hgetall: jest.fn(), expire: jest.fn() };
jest.mock('../../src/utils/redis', () => ({ getRedisClient: () => mockRedis }));
// Mock Supabase
const mockSupabaseFrom = jest.fn();
const mockSupabaseAuth = { getUser: jest.fn() };
jest.mock('../../src/utils/supabase', () => ({
getSupabaseClient: () => ({ auth: mockSupabaseAuth, from: mockSupabaseFrom }),
getSupabaseServiceClient: () => ({ auth: mockSupabaseAuth, from: mockSupabaseFrom }),
}));
jest.mock('axios');
const app = require('../../src/app');
beforeEach(() => {
jest.clearAllMocks();
mockRedis.get.mockResolvedValue(null);
mockRedis.set.mockResolvedValue('OK');
mockRedis.hset.mockResolvedValue(1);
mockRedis.hgetall.mockResolvedValue({});
mockRedis.expire.mockResolvedValue(1);
});
describe('GET /api/movements', () => {
test('returns movements for today', async () => {
const movements = [
{ player: 'Nikola Jokic', stat_type: 'points', book: 'draftkings', baseline_line: 26.5, current_line: 27.5, movement: 1.0, direction: 'up', sharp_indicator: 'sharp_action' },
];
mockSupabaseFrom.mockReturnValue({
select: () => ({
eq: () => ({
ilike: () => ({
eq: () => Promise.resolve({ data: movements }),
}),
}),
}),
});
// Simple mock: just return movements from Supabase
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'line_movements') {
return {
select: () => ({
eq: () => Promise.resolve({ data: movements }),
}),
};
}
return { select: () => ({ eq: () => Promise.resolve({ data: [] }) }) };
});
const res = await request(app).get('/api/movements').expect(200);
expect(res.body.game_date).toBeDefined();
expect(Array.isArray(res.body.movements)).toBe(true);
});
});
describe('GET /api/alerts', () => {
test('returns 401 without auth', async () => {
const res = await request(app).get('/api/alerts').expect(401);
expect(res.body.error).toContain('Authentication');
});
test('returns 403 for free tier', async () => {
mockSupabaseAuth.getUser.mockResolvedValue({
data: { user: { id: 'u1', email: 'free@test.com' } },
error: null,
});
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'users') {
return {
select: () => ({
eq: () => ({
single: () => Promise.resolve({
data: { id: 'u1', email: 'free@test.com', tier: 'free', scan_count: 0 },
error: null,
}),
}),
}),
};
}
return { select: () => ({ eq: () => Promise.resolve({ data: [] }) }) };
});
const res = await request(app)
.get('/api/alerts')
.set('Authorization', 'Bearer valid-token')
.expect(403);
expect(res.body.error).toContain('Analyst and Desk');
});
test('returns alerts for paid tier user', async () => {
const alerts = [
{ id: 'a1', alert_type: 'player_scratched', player: 'X', detail: 'scratched', is_read: false, created_at: '2026-03-21T18:00:00Z' },
];
mockSupabaseAuth.getUser.mockResolvedValue({
data: { user: { id: 'u2', email: 'paid@test.com' } },
error: null,
});
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'users') {
return {
select: () => ({
eq: () => ({
single: () => Promise.resolve({
data: { id: 'u2', email: 'paid@test.com', tier: 'analyst', scan_count: 10 },
error: null,
}),
}),
}),
};
}
if (table === 'cascade_alerts') {
return {
select: (sel, opts) => {
if (opts?.head) {
return { eq: () => ({ eq: () => Promise.resolve({ count: 1 }) }) };
}
return {
eq: () => ({
eq: () => ({
order: () => Promise.resolve({ data: alerts, error: null }),
}),
}),
};
},
};
}
return { select: () => ({ eq: () => Promise.resolve({ data: [] }) }) };
});
const res = await request(app)
.get('/api/alerts')
.set('Authorization', 'Bearer valid-token')
.expect(200);
expect(res.body.alerts).toHaveLength(1);
expect(res.body.alerts[0].alert_type).toBe('player_scratched');
});
});
describe('PATCH /api/alerts/:id/read', () => {
test('marks alert as read', async () => {
mockSupabaseAuth.getUser.mockResolvedValue({
data: { user: { id: 'u2', email: 'paid@test.com' } },
error: null,
});
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'users') {
return {
select: () => ({
eq: () => ({
single: () => Promise.resolve({
data: { id: 'u2', email: 'paid@test.com', tier: 'desk', scan_count: 0 },
error: null,
}),
}),
}),
};
}
if (table === 'cascade_alerts') {
return {
update: () => ({
eq: () => ({
eq: () => ({
select: () => ({
single: () => Promise.resolve({ data: { id: 'a1', is_read: true }, error: null }),
}),
}),
}),
}),
};
}
return {};
});
const res = await request(app)
.patch('/api/alerts/a1/read')
.set('Authorization', 'Bearer valid-token')
.expect(200);
expect(res.body.is_read).toBe(true);
});
test('returns 404 for nonexistent alert', async () => {
mockSupabaseAuth.getUser.mockResolvedValue({
data: { user: { id: 'u2', email: 'paid@test.com' } },
error: null,
});
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'users') {
return {
select: () => ({
eq: () => ({
single: () => Promise.resolve({
data: { id: 'u2', email: 'paid@test.com', tier: 'analyst', scan_count: 0 },
error: null,
}),
}),
}),
};
}
if (table === 'cascade_alerts') {
return {
update: () => ({
eq: () => ({
eq: () => ({
select: () => ({
single: () => Promise.resolve({ data: null, error: { message: 'not found' } }),
}),
}),
}),
}),
};
}
return {};
});
const res = await request(app)
.patch('/api/alerts/nonexistent/read')
.set('Authorization', 'Bearer valid-token')
.expect(404);
expect(res.body.error).toContain('not found');
});
});
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const mockSupabaseFrom = jest.fn();
jest.mock('../../src/utils/supabase', () => ({
getSupabaseServiceClient: () => ({ from: mockSupabaseFrom }),
}));
const { getAlertsForUser, markAlertRead } = require('../../src/services/alertService');
beforeEach(() => {
jest.clearAllMocks();
});
describe('alertService', () => {
test('getAlertsForUser returns unread alerts', async () => {
const alerts = [
{ id: 'a1', alert_type: 'player_scratched', detail: 'Player X scratched', is_read: false },
];
mockSupabaseFrom.mockImplementation(() => ({
select: (sel, opts) => {
if (opts?.head) {
return {
eq: () => ({ eq: () => Promise.resolve({ count: 1 }) }),
};
}
return {
eq: (col, val) => ({
eq: () => ({
order: () => Promise.resolve({ data: alerts, error: null }),
}),
}),
};
},
}));
const result = await getAlertsForUser('user-1');
expect(result.alerts).toHaveLength(1);
expect(result.unread_count).toBe(1);
});
test('markAlertRead returns updated alert', async () => {
mockSupabaseFrom.mockReturnValue({
update: () => ({
eq: () => ({
eq: () => ({
select: () => ({
single: () => Promise.resolve({ data: { id: 'a1', is_read: true }, error: null }),
}),
}),
}),
}),
});
const result = await markAlertRead('a1', 'user-1');
expect(result.id).toBe('a1');
expect(result.is_read).toBe(true);
});
test('markAlertRead returns null for nonexistent alert', async () => {
mockSupabaseFrom.mockReturnValue({
update: () => ({
eq: () => ({
eq: () => ({
select: () => ({
single: () => Promise.resolve({ data: null, error: { message: 'not found' } }),
}),
}),
}),
}),
});
const result = await markAlertRead('nonexistent', 'user-1');
expect(result).toBeNull();
});
});
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const mockRedis = { get: jest.fn(), set: jest.fn() };
jest.mock('../../src/utils/redis', () => ({ getRedisClient: () => mockRedis }));
const mockSupabaseFrom = jest.fn();
jest.mock('../../src/utils/supabase', () => ({
getSupabaseServiceClient: () => ({ from: mockSupabaseFrom }),
}));
const { detectScratches } = require('../../src/services/cascadeService');
beforeEach(() => {
jest.clearAllMocks();
mockRedis.get.mockResolvedValue(null);
mockRedis.set.mockResolvedValue('OK');
});
function makeProps(players) {
const props = [];
for (const player of players) {
// Add from 2 books to qualify
props.push({ player, stat_type: 'points', book: 'draftkings', line: 26.5 });
props.push({ player, stat_type: 'points', book: 'fanduel', line: 27.0 });
}
return props;
}
describe('cascadeService', () => {
test('first fetch: no previous data, no scratches', async () => {
mockRedis.get.mockResolvedValue(null);
const result = await detectScratches('nba', makeProps(['Jokic', 'LeBron']));
expect(result.scratchedPlayers).toEqual([]);
});
test('player present in previous but absent in current: flagged as scratch', async () => {
// Previous fetch had Jokic + LeBron
mockRedis.get.mockResolvedValue(JSON.stringify(['Jokic', 'LeBron']));
// Mock DB queries for processScratches
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'picks') {
return {
select: () => ({
eq: (col, val) => ({
gte: () => Promise.resolve({ data: [], error: null }),
}),
}),
};
}
return {
select: () => ({ eq: () => ({ gte: () => Promise.resolve({ data: [] }) }) }),
};
});
// Current fetch only has Jokic
const result = await detectScratches('nba', makeProps(['Jokic']));
expect(result.scratchedPlayers).toContain('LeBron');
});
test('player in only 1 book: not flagged (data gap)', async () => {
mockRedis.get.mockResolvedValue(JSON.stringify(['Jokic', 'LeBron']));
// Current: Jokic from 2 books, LeBron from only 1 book
const props = [
{ player: 'Jokic', stat_type: 'points', book: 'draftkings', line: 26.5 },
{ player: 'Jokic', stat_type: 'points', book: 'fanduel', line: 27.0 },
{ player: 'LeBron', stat_type: 'points', book: 'draftkings', line: 25.5 },
// LeBron only from 1 book — doesn't qualify as "having props from 2+ books"
];
mockSupabaseFrom.mockReturnValue({
select: () => ({ eq: () => ({ gte: () => Promise.resolve({ data: [] }) }) }),
});
const result = await detectScratches('nba', props);
// LeBron doesn't qualify for currentPlayers (only 1 book), so flagged as scratch
expect(result.scratchedPlayers).toContain('LeBron');
});
test('no players disappear: empty scratches', async () => {
mockRedis.get.mockResolvedValue(JSON.stringify(['Jokic', 'LeBron']));
const result = await detectScratches('nba', makeProps(['Jokic', 'LeBron']));
expect(result.scratchedPlayers).toEqual([]);
});
});
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const { determineSharpIndicator } = require('../../src/services/lineMovementService');
// Mock Redis and Supabase for the service-level tests
const mockRedis = { get: jest.fn(), set: jest.fn() };
jest.mock('../../src/utils/redis', () => ({ getRedisClient: () => mockRedis }));
const mockSupabaseFrom = jest.fn();
jest.mock('../../src/utils/supabase', () => ({
getSupabaseServiceClient: () => ({ from: mockSupabaseFrom }),
}));
const { processNewOdds, detectMovements, captureBaseline } = require('../../src/services/lineMovementService');
function makeProp(overrides = {}) {
return {
player: 'Nikola Jokic',
stat_type: 'points',
book: 'draftkings',
line: 26.5,
over_odds: -110,
under_odds: -110,
...overrides,
};
}
beforeEach(() => {
jest.clearAllMocks();
mockRedis.get.mockResolvedValue(null);
mockRedis.set.mockResolvedValue('OK');
});
describe('lineMovementService', () => {
describe('processNewOdds', () => {
test('first fetch of the day captures baseline, returns no movements', async () => {
mockRedis.get.mockResolvedValue(null); // no baseline flag
mockSupabaseFrom.mockReturnValue({
upsert: () => Promise.resolve({ data: [], error: null }),
delete: () => ({ lt: () => Promise.resolve({ error: null }) }),
});
const result = await processNewOdds('nba', [makeProp()]);
expect(result.isBaselineCapture).toBe(true);
expect(result.movements).toEqual([]);
});
test('subsequent fetch detects movement >= 0.5', async () => {
mockRedis.get.mockResolvedValue('1'); // baseline exists
const baselines = [
{ player: 'Nikola Jokic', stat_type: 'points', book: 'draftkings', baseline_line: 26.5 },
];
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'line_baselines') {
return { select: () => ({ eq: () => Promise.resolve({ data: baselines }) }) };
}
if (table === 'line_movements') {
return { insert: () => Promise.resolve({ error: null }) };
}
return {};
});
const result = await processNewOdds('nba', [makeProp({ line: 27.5 })]);
expect(result.isBaselineCapture).toBe(false);
expect(result.movements).toHaveLength(1);
expect(result.movements[0].movement).toBe(1.0);
expect(result.movements[0].direction).toBe('up');
});
test('movement < 0.5 is not flagged', async () => {
mockRedis.get.mockResolvedValue('1');
const baselines = [
{ player: 'Nikola Jokic', stat_type: 'points', book: 'draftkings', baseline_line: 26.5 },
];
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'line_baselines') {
return { select: () => ({ eq: () => Promise.resolve({ data: baselines }) }) };
}
if (table === 'line_movements') {
return { insert: () => Promise.resolve({ error: null }) };
}
return {};
});
const result = await processNewOdds('nba', [makeProp({ line: 26.8 })]);
expect(result.movements).toHaveLength(0);
});
test('direction correctly identified (down)', async () => {
mockRedis.get.mockResolvedValue('1');
const baselines = [
{ player: 'Nikola Jokic', stat_type: 'points', book: 'draftkings', baseline_line: 27.0 },
];
mockSupabaseFrom.mockImplementation((table) => {
if (table === 'line_baselines') {
return { select: () => ({ eq: () => Promise.resolve({ data: baselines }) }) };
}
if (table === 'line_movements') {
return { insert: () => Promise.resolve({ error: null }) };
}
return {};
});
const result = await processNewOdds('nba', [makeProp({ line: 26.0 })]);
expect(result.movements[0].direction).toBe('down');
});
});
describe('determineSharpIndicator', () => {
test('line up + over expensive = sharp_action', () => {
expect(determineSharpIndicator(26.5, 27.0, -120, -100, 'up')).toBe('sharp_action');
});
test('line up + under expensive = public_action', () => {
expect(determineSharpIndicator(26.5, 27.0, -100, -120, 'up')).toBe('public_action');
});
test('line down + under expensive = sharp_action', () => {
expect(determineSharpIndicator(27.0, 26.5, -100, -120, 'down')).toBe('sharp_action');
});
test('no odds = unknown', () => {
expect(determineSharpIndicator(26.5, 27.0, null, null, 'up')).toBe('unknown');
});
});
});
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const fs = require('fs');
const path = require('path');
const sql = fs.readFileSync(
path.join(__dirname, '../../supabase/migrations/002_line_movement.sql'),
'utf8'
);
describe('Migration 002 — Line Movement', () => {
test('creates line_baselines table', () => {
expect(sql).toContain('CREATE TABLE public.line_baselines');
});
test('creates line_movements table', () => {
expect(sql).toContain('CREATE TABLE public.line_movements');
});
test('creates cascade_alerts table', () => {
expect(sql).toContain('CREATE TABLE public.cascade_alerts');
});
test('line_movements has direction constraint', () => {
expect(sql).toMatch(/direction.*CHECK.*\(direction IN \('up',\s*'down'\)\)/);
});
test('cascade_alerts has alert_type constraint', () => {
expect(sql).toMatch(/alert_type.*CHECK.*\(alert_type IN/);
});
test('cascade_alerts has RLS enabled', () => {
expect(sql).toContain('ALTER TABLE public.cascade_alerts ENABLE ROW LEVEL SECURITY');
});
test('cascade_alerts has select and update policies', () => {
expect(sql).toContain('CREATE POLICY "alerts_select_own"');
expect(sql).toContain('CREATE POLICY "alerts_update_own"');
});
test('unique index on baselines prevents duplicates', () => {
expect(sql).toContain('CREATE UNIQUE INDEX idx_baseline_unique');
});
test('cleanup function exists', () => {
expect(sql).toContain('CREATE OR REPLACE FUNCTION public.cleanup_old_baselines');
});
});