feat: implement full backend API for Pantree Phase 1 MVP

tests/recipes.test.js

@@ -0,0 +1,220 @@
+'use strict';
+
+const request = require('supertest');
+const app = require('../../src/main/app');
+const { setDb } = require('../../src/db/knex');
+const { createTestDb } = require('../helpers/testDb');
+const { issueToken } = require('../../src/utils/jwt');
+const { v4: uuidv4 } = require('uuid');
+
+function makeUser(overrides = {}) {
+  return {
+    id: uuidv4(),
+    email: 'jane@example.com',
+    name: 'Jane Doe',
+    profile_picture_url: null,
+    email_verified: true,
+    deleted_at: null,
+    deletion_scheduled_at: null,
+    created_at: new Date().toISOString(),
+    updated_at: new Date().toISOString(),
+    ...overrides,
+  };
+}
+
+const RECIPE_ID = '00000000-0000-0000-0000-000000000001';
+
+function makeRecipe(overrides = {}) {
+  return {
+    id: RECIPE_ID,
+    name: 'Classic Pancakes',
+    instructions: '1. Mix. 2. Cook.',
+    servings: 4,
+    created_at: new Date().toISOString(),
+    updated_at: new Date().toISOString(),
+    ...overrides,
+  };
+}
+
+function makeIngredients(recipeId = RECIPE_ID) {
+  return [
+    {
+      id: uuidv4(),
+      recipe_id: recipeId,
+      item_name: 'flour',
+      item_name_lower: 'flour',
+      quantity: '2.0000',
+      unit: 'cups',
+    },
+    {
+      id: uuidv4(),
+      recipe_id: recipeId,
+      item_name: 'milk',
+      item_name_lower: 'milk',
+      quantity: '1.5000',
+      unit: 'cups',
+    },
+    {
+      id: uuidv4(),
+      recipe_id: recipeId,
+      item_name: 'eggs',
+      item_name_lower: 'eggs',
+      quantity: '2.0000',
+      unit: 'whole',
+    },
+  ];
+}
+
+describe('Recipe Routes', () => {
+  let db;
+  let user;
+  let token;
+
+  beforeEach(() => {
+    user = makeUser();
+    db = createTestDb({
+      users: [user],
+      recipes: [makeRecipe()],
+      recipe_ingredients: makeIngredients(),
+      pantry_items: [],
+    });
+    setDb(db);
+    token = issueToken(user).token;
+  });
+
+  // ── GET /v1/recipes ─────────────────────────────────────────────────────────
+
+  describe('GET /v1/recipes', () => {
+    it('returns all recipes with availability', async () => {
+      const res = await request(app)
+        .get('/v1/recipes')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(200);
+      expect(res.body.recipes).toHaveLength(1);
+      expect(res.body.recipes[0].name).toBe('Classic Pancakes');
+      expect(res.body.recipes[0].availability).toBeDefined();
+      expect(res.body.synced_at).toBeDefined();
+    });
+
+    it('shows missing_all when pantry is empty', async () => {
+      const res = await request(app)
+        .get('/v1/recipes')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.body.recipes[0].availability.status).toBe('missing_all');
+      expect(res.body.recipes[0].availability.available_count).toBe(0);
+      expect(res.body.recipes[0].availability.total_count).toBe(3);
+    });
+
+    it('shows can_make when all ingredients are in pantry', async () => {
+      db.seedTable('pantry_items', [
+        { id: uuidv4(), user_id: user.id, item_name: 'flour', item_name_lower: 'flour', quantity: 5, last_modified: new Date().toISOString(), created_at: new Date().toISOString(), updated_at: new Date().toISOString() },
+        { id: uuidv4(), user_id: user.id, item_name: 'milk', item_name_lower: 'milk', quantity: 2, last_modified: new Date().toISOString(), created_at: new Date().toISOString(), updated_at: new Date().toISOString() },
+        { id: uuidv4(), user_id: user.id, item_name: 'eggs', item_name_lower: 'eggs', quantity: 6, last_modified: new Date().toISOString(), created_at: new Date().toISOString(), updated_at: new Date().toISOString() },
+      ]);
+
+      const res = await request(app)
+        .get('/v1/recipes')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.body.recipes[0].availability.status).toBe('can_make');
+      expect(res.body.recipes[0].availability.available_count).toBe(3);
+    });
+
+    it('shows partial when some ingredients are in pantry', async () => {
+      db.seedTable('pantry_items', [
+        { id: uuidv4(), user_id: user.id, item_name: 'flour', item_name_lower: 'flour', quantity: 5, last_modified: new Date().toISOString(), created_at: new Date().toISOString(), updated_at: new Date().toISOString() },
+      ]);
+
+      const res = await request(app)
+        .get('/v1/recipes')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.body.recipes[0].availability.status).toBe('partial');
+      expect(res.body.recipes[0].availability.available_count).toBe(1);
+      expect(res.body.recipes[0].availability.missing_ingredients).toContain('milk');
+    });
+
+    it('filters to available only with ?filter=available', async () => {
+      const res = await request(app)
+        .get('/v1/recipes?filter=available')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(200);
+      expect(res.body.recipes).toHaveLength(0); // pantry is empty
+    });
+
+    it('returns 401 without token', async () => {
+      const res = await request(app).get('/v1/recipes');
+      expect(res.status).toBe(401);
+    });
+
+    it('returns 400 for invalid scale', async () => {
+      const res = await request(app)
+        .get('/v1/recipes?scale=5')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(400);
+    });
+  });
+
+  // ── GET /v1/recipes/:recipe_id ──────────────────────────────────────────────
+
+  describe('GET /v1/recipes/:recipe_id', () => {
+    it('returns full recipe detail', async () => {
+      const res = await request(app)
+        .get(`/v1/recipes/${RECIPE_ID}`)
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(200);
+      expect(res.body.recipe.name).toBe('Classic Pancakes');
+      expect(res.body.recipe.instructions).toBeDefined();
+      expect(res.body.recipe.ingredients).toHaveLength(3);
+      expect(res.body.recipe.scaled_servings).toBe(4);
+    });
+
+    it('scales ingredient quantities with ?scale=2', async () => {
+      const res = await request(app)
+        .get(`/v1/recipes/${RECIPE_ID}?scale=2`)
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(200);
+      expect(res.body.recipe.scaled_servings).toBe(8);
+      const flour = res.body.recipe.ingredients.find((i) => i.item_name === 'flour');
+      expect(flour.quantity).toBe(4.0);
+    });
+
+    it('marks in_pantry correctly', async () => {
+      db.seedTable('pantry_items', [
+        { id: uuidv4(), user_id: user.id, item_name: 'flour', item_name_lower: 'flour', quantity: 5, last_modified: new Date().toISOString(), created_at: new Date().toISOString(), updated_at: new Date().toISOString() },
+      ]);
+
+      const res = await request(app)
+        .get(`/v1/recipes/${RECIPE_ID}`)
+        .set('Authorization', `Bearer ${token}`);
+
+      const flour = res.body.recipe.ingredients.find((i) => i.item_name === 'flour');
+      const milk = res.body.recipe.ingredients.find((i) => i.item_name === 'milk');
+      expect(flour.in_pantry).toBe(true);
+      expect(milk.in_pantry).toBe(false);
+    });
+
+    it('returns 404 for non-existent recipe', async () => {
+      const res = await request(app)
+        .get('/v1/recipes/00000000-0000-0000-0000-999999999999')
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(404);
+      expect(res.body.code).toBe('NOT_FOUND');
+    });
+
+    it('returns 400 for invalid scale value', async () => {
+      const res = await request(app)
+        .get(`/v1/recipes/${RECIPE_ID}?scale=10`)
+        .set('Authorization', `Bearer ${token}`);
+
+      expect(res.status).toBe(400);
+    });
+  });
+});