SCRAPE-11: Implement runScrape() main orchestration function

Add the top-level runScrape() function that coordinates the full scraper
pipeline: fetch HTML (with retry), parse units, convert data types, upsert
units, insert prices, mark stale units, and update daily summary.

Features:
- dryRun mode skips all database writes while still parsing/validating
- htmlContent parameter allows injecting HTML directly (bypasses fetch)
- Calculates newUnitsCount and rentedUnitsCount by diffing against prior state
- Records every run to scraper_runs history (success or failure)
- Structured logging with jobId correlation throughout the pipeline
- Graceful error handling at each pipeline stage

Includes 15 tests covering full workflow, dry run, error handling,
trigger types, new/rented unit calculation, and empty HTML edge case.

__tests__/scraper/scraperService.test.js

@@ -0,0 +1,457 @@
+/**
+ * Tests for runScrape() orchestration function
+ *
+ * Covers:
+ * - Full workflow completes with mocked dependencies
+ * - Returns correct result structure with jobId, status, metrics
+ * - Handles dryRun option (skip DB writes)
+ * - Handles htmlContent option (use provided HTML)
+ * - Records scraper run to history on success
+ * - Records scraper run to history on failure
+ * - Catches and logs errors from fetchPage
+ * - Catches and logs errors from database operations
+ * - Calculates newUnitsCount and rentedUnitsCount correctly
+ */
+
+const { MongoClient } = require('mongodb');
+const { MongoMemoryServer } = require('mongodb-memory-server');
+
+let mongoServer;
+let client;
+let db;
+
+// We will require runScrape and recordScraperRun after implementation
+let runScrape;
+let recordScraperRun;
+
+// Store original module references so we can mock individual functions
+let scraperService;
+
+beforeAll(async () => {
+  mongoServer = await MongoMemoryServer.create();
+  const uri = mongoServer.getUri();
+  client = new MongoClient(uri);
+  await client.connect();
+  db = client.db('test_apartments');
+
+  // Dynamically require to pick up implementation
+  scraperService = require('../../services/scraperService');
+  ({ runScrape, recordScraperRun } = scraperService);
+});
+
+afterAll(async () => {
+  if (client) await client.close();
+  if (mongoServer) await mongoServer.stop();
+});
+
+beforeEach(async () => {
+  // Clean all relevant collections before each test
+  const collections = await db.listCollections().toArray();
+  for (const col of collections) {
+    await db.collection(col.name).deleteMany({});
+  }
+  // Reset all mocks
+  jest.restoreAllMocks();
+});
+
+// ============================================================
+// Helper: Create sample HTML with units
+// ============================================================
+function createSampleHtml(unitCodes) {
+  const articles = unitCodes.map(code => `
+    <article
+      data-spaces-id="100"
+      data-spaces-unit="${code}"
+      data-spaces-unit-id="200"
+      data-spaces-unit-floor="5"
+      data-spaces-sort-area="750"
+      data-spaces-sort-bed="1"
+      data-spaces-sort-bath="1"
+      data-spaces-sort-price="1500"
+      data-spaces-available="true"
+      data-spaces-unavailable="false"
+      data-spaces-soonest="Now"
+      data-spaces-sort-date="1700000000"
+      data-spaces-plan-id="10"
+      data-spaces-sort-plan-name="Studio"
+      data-spaces-obj="unit"
+      data-spaces-community="TestCommunity"
+      data-spaces-asset="1"
+      data-spaces-href="/unit/${code}"
+      data-spaces-inventory-href="/inventory/${code}"
+    >
+      <img src="http://example.com/${code}.jpg" />
+    </article>
+  `).join('\n');
+
+  return `
+    <html><body>
+      <section class="spaces__tab-unit">
+        ${articles}
+      </section>
+    </body></html>
+  `;
+}
+
+// ============================================================
+// Test: recordScraperRun
+// ============================================================
+describe('recordScraperRun', () => {
+  it('should insert a run record into scraper_runs collection', async () => {
+    const runData = {
+      jobId: 'test-job-001',
+      trigger: 'manual',
+      status: 'success',
+      startedAt: new Date().toISOString(),
+      completedAt: new Date().toISOString(),
+      duration: 1234,
+      unitsProcessed: 10,
+      pricesInserted: 8,
+      errors: []
+    };
+
+    const mockLogger = { info: jest.fn(), warn: jest.fn(), error: jest.fn() };
+    const result = await recordScraperRun(db, runData, mockLogger);
+
+    expect(result).toBeTruthy();
+    expect(result.insertedId).toBeTruthy();
+
+    // Verify it was inserted
+    const saved = await db.collection('scraper_runs').findOne({ jobId: 'test-job-001' });
+    expect(saved).toBeTruthy();
+    expect(saved.status).toBe('success');
+    expect(saved.recordedAt).toBeInstanceOf(Date);
+  });
+
+  it('should not throw when insert fails', async () => {
+    // Pass null db to cause an error
+    const runData = { jobId: 'test-fail', status: 'success' };
+
+    // Should not throw
+    const mockLogger = { info: jest.fn(), warn: jest.fn(), error: jest.fn() };
+    const result = await recordScraperRun(null, runData, mockLogger);
+    expect(result).toBeNull();
+    expect(mockLogger.error).toHaveBeenCalled();
+  });
+});
+
+// ============================================================
+// Test: runScrape - Full workflow
+// ============================================================
+describe('runScrape', () => {
+  it('should complete full workflow with mocked dependencies', async () => {
+    const html = createSampleHtml(['UNIT-A', 'UNIT-B']);
+
+    const result = await runScrape(db, {
+      trigger: 'manual',
+      jobId: 'test-full-workflow',
+      htmlContent: html
+    });
+
+    expect(result).toBeTruthy();
+    expect(result.jobId).toBe('test-full-workflow');
+    expect(result.status).toBe('success');
+    expect(result.trigger).toBe('manual');
+    expect(result.unitsProcessed).toBe(2);
+    expect(result.errors).toEqual([]);
+  });
+
+  it('should return correct result structure with jobId, status, metrics', async () => {
+    const html = createSampleHtml(['UNIT-X']);
+
+    const result = await runScrape(db, {
+      jobId: 'test-structure',
+      htmlContent: html
+    });
+
+    // Verify all expected fields exist
+    expect(result).toHaveProperty('jobId', 'test-structure');
+    expect(result).toHaveProperty('trigger', 'manual');
+    expect(result).toHaveProperty('dryRun', false);
+    expect(result).toHaveProperty('status', 'success');
+    expect(result).toHaveProperty('startedAt');
+    expect(result).toHaveProperty('completedAt');
+    expect(result).toHaveProperty('duration');
+    expect(result).toHaveProperty('unitsProcessed');
+    expect(result).toHaveProperty('pricesInserted');
+    expect(result).toHaveProperty('newUnitsCount');
+    expect(result).toHaveProperty('rentedUnitsCount');
+    expect(result).toHaveProperty('staleUnitsCount');
+    expect(result).toHaveProperty('errors');
+
+    // Verify types
+    expect(typeof result.duration).toBe('number');
+    expect(result.duration).toBeGreaterThanOrEqual(0);
+    expect(typeof result.startedAt).toBe('string');
+    expect(typeof result.completedAt).toBe('string');
+    expect(Array.isArray(result.errors)).toBe(true);
+  });
+
+  it('should generate a jobId when not provided', async () => {
+    const html = createSampleHtml(['UNIT-GEN']);
+
+    const result = await runScrape(db, {
+      htmlContent: html
+    });
+
+    expect(result.jobId).toBeTruthy();
+    expect(typeof result.jobId).toBe('string');
+    // UUID format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+    expect(result.jobId).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i);
+  });
+
+  // ============================================================
+  // Test: dryRun option
+  // ============================================================
+  it('should skip DB writes when dryRun is true', async () => {
+    const html = createSampleHtml(['DRY-A', 'DRY-B']);
+
+    const result = await runScrape(db, {
+      jobId: 'test-dry-run',
+      htmlContent: html,
+      dryRun: true
+    });
+
+    expect(result.status).toBe('success');
+    expect(result.dryRun).toBe(true);
+    expect(result.unitsProcessed).toBe(2);
+    expect(result.pricesInserted).toBe(0);
+    expect(result.staleUnitsCount).toBe(0);
+
+    // Verify no units were written to the units collection
+    const unitsCount = await db.collection('units_migration_test').countDocuments();
+    expect(unitsCount).toBe(0);
+
+    // Verify no prices were written
+    const pricesCount = await db.collection('unit_prices_migration_test').countDocuments();
+    expect(pricesCount).toBe(0);
+  });
+
+  // ============================================================
+  // Test: htmlContent option
+  // ============================================================
+  it('should use provided HTML instead of fetching when htmlContent is given', async () => {
+    const html = createSampleHtml(['HTML-1', 'HTML-2', 'HTML-3']);
+
+    // Mock axios.get to track if HTTP fetch is attempted
+    const axios = require('axios');
+    const axiosSpy = jest.spyOn(axios, 'get');
+
+    const result = await runScrape(db, {
+      jobId: 'test-html-content',
+      htmlContent: html
+    });
+
+    expect(result.status).toBe('success');
+    expect(result.unitsProcessed).toBe(3);
+    // axios.get should NOT have been called since we provided htmlContent
+    expect(axiosSpy).not.toHaveBeenCalled();
+  });
+
+  // ============================================================
+  // Test: Records scraper run on success
+  // ============================================================
+  it('should record scraper run to history on success', async () => {
+    const html = createSampleHtml(['REC-A']);
+
+    await runScrape(db, {
+      jobId: 'test-record-success',
+      htmlContent: html
+    });
+
+    const runRecord = await db.collection('scraper_runs').findOne({ jobId: 'test-record-success' });
+    expect(runRecord).toBeTruthy();
+    expect(runRecord.status).toBe('success');
+    expect(runRecord.recordedAt).toBeInstanceOf(Date);
+    expect(runRecord.unitsProcessed).toBe(1);
+  });
+
+  // ============================================================
+  // Test: Records scraper run on failure
+  // ============================================================
+  it('should record scraper run to history on failure', async () => {
+    const html = createSampleHtml(['FAIL-A']);
+
+    // Create a db proxy that throws on bulkWrite (used by upsertUnits)
+    // but allows other operations (like scraper_runs insertOne) to pass through
+    const faultyDb = {
+      collection: (name) => {
+        const realCollection = db.collection(name);
+        if (name === 'units_migration_test') {
+          return new Proxy(realCollection, {
+            get(target, prop) {
+              if (prop === 'bulkWrite') {
+                return async () => {
+                  throw new Error('Database connection lost');
+                };
+              }
+              const value = target[prop];
+              if (typeof value === 'function') {
+                return value.bind(target);
+              }
+              return value;
+            }
+          });
+        }
+        return realCollection;
+      }
+    };
+
+    const result = await runScrape(faultyDb, {
+      jobId: 'test-record-failure',
+      htmlContent: html
+    });
+
+    expect(result.status).toBe('failed');
+    expect(result.errors).toContain('Database connection lost');
+
+    // The run should still be recorded (via the real db passed through for scraper_runs)
+    const runRecord = await db.collection('scraper_runs').findOne({ jobId: 'test-record-failure' });
+    expect(runRecord).toBeTruthy();
+    expect(runRecord.status).toBe('failed');
+    expect(runRecord.errors).toContain('Database connection lost');
+  });
+
+  // ============================================================
+  // Test: Catches errors from fetchPage
+  // ============================================================
+  it('should catch and handle errors from fetchPage', async () => {
+    // Mock axios.get to throw a network error (fetchPage uses axios internally)
+    const axios = require('axios');
+    jest.spyOn(axios, 'get').mockRejectedValue(
+      new Error('Network timeout')
+    );
+
+    const result = await runScrape(db, {
+      jobId: 'test-fetch-error'
+      // No htmlContent, so it will call fetchPage which uses axios
+    });
+
+    expect(result.status).toBe('failed');
+    expect(result.errors).toContain('Network timeout');
+    expect(result.unitsProcessed).toBe(0);
+  });
+
+  // ============================================================
+  // Test: Catches errors from database operations
+  // ============================================================
+  it('should catch and handle errors from database operations', async () => {
+    const html = createSampleHtml(['DB-ERR']);
+
+    // Create a db proxy that throws on the prices collection bulkWrite
+    // Use Proxy to properly delegate all methods to the real collection
+    const faultyDb = {
+      collection: (name) => {
+        const realCollection = db.collection(name);
+        if (name === 'unit_prices_migration_test') {
+          return new Proxy(realCollection, {
+            get(target, prop) {
+              if (prop === 'bulkWrite') {
+                return async () => {
+                  throw new Error('Write concern timeout');
+                };
+              }
+              const value = target[prop];
+              if (typeof value === 'function') {
+                return value.bind(target);
+              }
+              return value;
+            }
+          });
+        }
+        return realCollection;
+      }
+    };
+
+    const result = await runScrape(faultyDb, {
+      jobId: 'test-db-error',
+      htmlContent: html
+    });
+
+    expect(result.status).toBe('failed');
+    expect(result.errors).toContain('Write concern timeout');
+
+    // Run should still be recorded despite error
+    const runRecord = await db.collection('scraper_runs').findOne({ jobId: 'test-db-error' });
+    expect(runRecord).toBeTruthy();
+    expect(runRecord.status).toBe('failed');
+  });
+
+  // ============================================================
+  // Test: Calculates newUnitsCount and rentedUnitsCount correctly
+  // ============================================================
+  it('should calculate newUnitsCount and rentedUnitsCount correctly', async () => {
+    // First, simulate yesterday's data by inserting price records for yesterday
+    const today = new Date();
+    const yesterday = new Date(today);
+    yesterday.setUTCDate(yesterday.getUTCDate() - 1);
+    const yesterdayStr = yesterday.toISOString().split('T')[0];
+
+    // Yesterday had units: OLD-A, OLD-B, OLD-C
+    await db.collection('unit_prices_migration_test').insertMany([
+      { unit_code: 'OLD-A', date_checked: yesterdayStr, price: 1000 },
+      { unit_code: 'OLD-B', date_checked: yesterdayStr, price: 1100 },
+      { unit_code: 'OLD-C', date_checked: yesterdayStr, price: 1200 }
+    ]);
+
+    // Today's scrape has: OLD-A, OLD-B, NEW-D (OLD-C is gone / rented)
+    const html = createSampleHtml(['OLD-A', 'OLD-B', 'NEW-D']);
+
+    const result = await runScrape(db, {
+      jobId: 'test-calc-changes',
+      htmlContent: html
+    });
+
+    expect(result.status).toBe('success');
+    // NEW-D is new (not in yesterday's data)
+    expect(result.newUnitsCount).toBe(1);
+    // OLD-C was in yesterday's data but not in today's scrape
+    expect(result.rentedUnitsCount).toBe(1);
+    expect(result.unitsProcessed).toBe(3);
+  });
+
+  // ============================================================
+  // Test: Default trigger is 'manual'
+  // ============================================================
+  it('should default trigger to manual', async () => {
+    const html = createSampleHtml(['DEF-A']);
+
+    const result = await runScrape(db, {
+      jobId: 'test-default-trigger',
+      htmlContent: html
+    });
+
+    expect(result.trigger).toBe('manual');
+  });
+
+  // ============================================================
+  // Test: Supports scheduled trigger
+  // ============================================================
+  it('should support scheduled trigger', async () => {
+    const html = createSampleHtml(['SCHED-A']);
+
+    const result = await runScrape(db, {
+      jobId: 'test-scheduled-trigger',
+      trigger: 'scheduled',
+      htmlContent: html
+    });
+
+    expect(result.trigger).toBe('scheduled');
+  });
+
+  // ============================================================
+  // Test: Handles empty HTML (no units found)
+  // ============================================================
+  it('should handle HTML with no units gracefully', async () => {
+    const emptyHtml = '<html><body><section class="spaces__tab-unit"></section></body></html>';
+
+    const result = await runScrape(db, {
+      jobId: 'test-empty-html',
+      htmlContent: emptyHtml
+    });
+
+    expect(result.status).toBe('success');
+    expect(result.unitsProcessed).toBe(0);
+    expect(result.errors).toContain('No units found in HTML');
+  });
+});

services/scraperService.js

@@ -7,7 +7,9 @@
 
 const axios = require('axios');
 const cheerio = require('cheerio');
+const crypto = require('crypto');
 const config = require('../config/scraper');
+const { createLogger } = require('./scraperLogger');
 
 /**
  * Sleep utility for retry delays
@@ -619,6 +621,40 @@ async function updateDailySummary(db, summaryData, logger) {
   }
 }
 
+// ============================================================
+// Additional Helpers for runScrape Orchestration
+// ============================================================
+
+/**
+ * Get today's date in YYYY-MM-DD format (UTC).
+ * @returns {string} Today's date string
+ */
+function getTodayUTC() {
+  return new Date().toISOString().split('T')[0];
+}
+
+/**
+ * Get the set of unit codes that had price records yesterday.
+ * Used to calculate new and rented units by comparison.
+ * @param {Db} db - MongoDB database instance
+ * @param {string} today - Today's date in YYYY-MM-DD format
+ * @returns {Promise<Set<string>>} Set of unit codes from yesterday
+ */
+async function getYesterdayUnitCodes(db, today) {
+  const yesterday = getYesterday(today);
+  const collection = db.collection(config.COLLECTIONS.PRICES);
+
+  const yesterdayRecords = await collection
+    .find({ date_checked: yesterday }, { projection: { unit_code: 1 } })
+    .toArray();
+
+  return new Set(yesterdayRecords.map(r => r.unit_code));
+}
+
+// ============================================================
+// Scraper Run History
+// ============================================================
+
 /**
  * Record scraper run to history collection.
  * Called in the finally block of runScrape() to persist run metadata.
@@ -630,9 +666,8 @@ async function updateDailySummary(db, summaryData, logger) {
  * @returns {Promise<Object|null>} Insert result, or null on failure
  */
 async function recordScraperRun(db, runData, logger) {
-  const collection = db.collection(config.COLLECTIONS.SCRAPER_RUNS);
-
   try {
+    const collection = db.collection(config.COLLECTIONS.SCRAPER_RUNS);
     const result = await collection.insertOne({
       ...runData,
       recordedAt: new Date()
@@ -647,7 +682,138 @@ async function recordScraperRun(db, runData, logger) {
   }
 }
 
+// ============================================================
+// Main Orchestration Function
+// ============================================================
+
+/**
+ * Execute a complete scrape operation.
+ * Orchestrates the full workflow: fetch -> parse -> convert -> DB ops.
+ *
+ * @param {Db} db - MongoDB database instance
+ * @param {Object} options - Scrape options
+ * @param {string} [options.trigger='manual'] - Trigger type ('scheduled' | 'manual')
+ * @param {string} [options.jobId] - Optional job ID (generated if not provided)
+ * @param {boolean} [options.dryRun=false] - Skip database writes for safe testing
+ * @param {string} [options.htmlContent] - Use provided HTML instead of fetching
+ * @returns {Promise<Object>} Scrape result with status and metrics
+ */
+async function runScrape(db, options = {}) {
+  const jobId = options.jobId || crypto.randomUUID();
+  const trigger = options.trigger || 'manual';
+  const dryRun = options.dryRun || false;
+  const htmlContent = options.htmlContent || null;
+  const logger = createLogger(jobId);
+  const startTime = Date.now();
+
+  let result = {
+    jobId,
+    trigger,
+    dryRun,
+    status: 'running',
+    startedAt: new Date().toISOString(),
+    completedAt: null,
+    duration: null,
+    unitsProcessed: 0,
+    pricesInserted: 0,
+    newUnitsCount: 0,
+    rentedUnitsCount: 0,
+    staleUnitsCount: 0,
+    errors: []
+  };
+
+  try {
+    logger.info('Scrape started', { trigger, dryRun, usingProvidedHtml: !!htmlContent });
+
+    // Step 1: Fetch HTML (or use provided content for testing)
+    const html = htmlContent || await fetchPage(config.TARGET_URL, logger);
+
+    // Step 2: Parse units
+    const rawUnits = parseUnits(html, logger);
+
+    if (rawUnits.length === 0) {
+      logger.warn('No units found in HTML - possible structure change');
+      result.errors.push('No units found in HTML');
+    }
+
+    // Step 3: Convert data types
+    const units = rawUnits.map(unit => convertDataTypes(unit));
+    result.unitsProcessed = units.length;
+
+    // Step 4: Database operations
+    const today = getTodayUTC();
+
+    // Get yesterday's unit codes for comparison
+    const yesterdayUnits = await getYesterdayUnitCodes(db, today);
+
+    // Determine new and rented units
+    const currentUnitCodes = new Set(units.map(u => u.unit_code));
+    const newUnits = units.filter(u => !yesterdayUnits.has(u.unit_code));
+    const rentedUnits = [...yesterdayUnits].filter(code => !currentUnitCodes.has(code));
+
+    result.newUnitsCount = newUnits.length;
+    result.rentedUnitsCount = rentedUnits.length;
+
+    // Database operations (skip if dryRun)
+    if (dryRun) {
+      logger.info('Dry run mode - skipping database writes', {
+        wouldUpsert: units.length,
+        wouldInsertPrices: units.filter(u => u.price !== null).length
+      });
+      result.pricesInserted = 0;
+      result.staleUnitsCount = 0;
+    } else {
+      // Upsert units
+      await upsertUnits(db, units, logger);
+
+      // Insert prices
+      const pricesResult = await insertPrices(db, units, today, logger);
+      result.pricesInserted = pricesResult.insertedCount;
+
+      // Mark stale units
+      const staleResult = await markStaleUnits(db, currentUnitCodes, today, logger);
+      result.staleUnitsCount = staleResult.modifiedCount;
+
+      // Update daily summary
+      await updateDailySummary(db, {
+        date: today,
+        newUnits: newUnits.map(u => u.unit_code),
+        rentedUnits,
+        staleUnitsCount: result.staleUnitsCount,
+        totalAvailable: units.length
+      }, logger);
+    }
+
+    result.status = 'success';
+
+  } catch (error) {
+    logger.error('Scrape failed', {
+      errorType: error.name,
+      errorMessage: error.message
+    });
+    result.status = 'failed';
+    result.errors.push(error.message);
+
+  } finally {
+    result.completedAt = new Date().toISOString();
+    result.duration = Date.now() - startTime;
+
+    // Record run to history (always runs, even on failure)
+    await recordScraperRun(db, result, logger);
+
+    logger.info('Scrape completed', {
+      status: result.status,
+      duration: result.duration,
+      unitsProcessed: result.unitsProcessed,
+      pricesInserted: result.pricesInserted
+    });
+  }
+
+  return result;
+}
+
 module.exports = {
+  runScrape,
   fetchPage,
   parseUnits,
   convertDataTypes,
@@ -657,6 +823,8 @@ module.exports = {
   updateDailySummary,
   recordScraperRun,
   // Export helpers for testing
+  getTodayUTC,
+  getYesterdayUnitCodes,
   getYesterday,
   parseInteger,
   parsePositiveInteger,