Complete CRM Integration Service

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Define the CRM Integration Service
const crmIntegrationService = await $.Service.create({
  name: 'CRM Integration Service',
  description: 'Bidirectional CRM synchronization across Salesforce, HubSpot, and custom APIs',
  type: $.ServiceType.Integration,
  version: '1.0.0',

  // Pricing configuration
  pricing: {
    model: $.PricingModel.PerOperation,
    tiers: [
      {
        name: 'Starter',
        operations: 1000,
        price: 0.1, // $0.10 per sync operation
        overage: 0.12,
      },
      {
        name: 'Professional',
        operations: 10000,
        price: 0.08, // Volume discount
        overage: 0.1,
      },
      {
        name: 'Enterprise',
        operations: 100000,
        price: 0.05,
        overage: 0.07,
        customRateLimits: true,
      },
    ],
    billingCycle: $.BillingCycle.Monthly,
  },

  // Service capabilities
  capabilities: {
    bidirectionalSync: true,
    realtimeUpdates: true,
    batchProcessing: true,
    conflictResolution: true,
    fieldMapping: true,
    deduplication: true,
    historicalSync: true,
  },

  // Supported platforms
  platforms: [
    {
      name: 'Salesforce',
      version: 'v58.0',
      auth: $.AuthType.OAuth2,
      entities: ['Contact', 'Lead', 'Account', 'Opportunity'],
    },
    {
      name: 'HubSpot',
      version: 'v3',
      auth: $.AuthType.APIKey,
      entities: ['contacts', 'companies', 'deals', 'tickets'],
    },
    {
      name: 'Custom',
      version: '1.0',
      auth: $.AuthType.Bearer,
      entities: ['customers', 'organizations'],
    },
  ],

  // Rate limiting configuration
  rateLimits: {
    salesforce: {
      requestsPerDay: 15000,
      concurrentRequests: 25,
      bulkApiLimit: 10000,
    },
    hubspot: {
      requestsPerSecond: 10,
      burstLimit: 100,
      dailyLimit: 500000,
    },
    custom: {
      requestsPerMinute: 100,
      retryAfter: 60,
    },
  },

  // Operational settings
  operations: {
    syncInterval: 300, // 5 minutes for scheduled syncs
    batchSize: 100,
    maxRetries: 3,
    retryBackoff: 'exponential',
    webhookTimeout: 30000,
    conflictResolution: 'last-write-wins', // Default strategy
  },
})

// Store service configuration
await $.CRMIntegrationService.stores(crmIntegrationService)

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Advanced service configuration with custom sync strategies
const advancedCrmService = await $.Service.create({
  name: 'Advanced CRM Sync Service',
  description: 'Enterprise-grade CRM synchronization with intelligent conflict resolution',
  type: $.ServiceType.Integration,
  version: '2.0.0',

  // Sync strategy configuration
  syncStrategies: {
    // Real-time sync via webhooks
    realtime: {
      enabled: true,
      platforms: ['salesforce', 'hubspot'],
      debounce: 1000, // 1 second debounce for rapid changes
      filters: {
        includeFields: ['email', 'phone', 'name', 'company', 'title'],
        excludeSystemFields: true,
      },
    },

    // Batch sync for bulk operations
    batch: {
      enabled: true,
      schedule: 'every 1 hour',
      chunkSize: 500,
      parallelism: 5,
      deltaSync: true, // Only sync changes since last run
      fullSyncInterval: 'daily',
    },

    // Scheduled full sync
    scheduled: {
      enabled: true,
      cron: '0 2 * * *', // 2 AM daily
      timezone: 'UTC',
      scope: 'all-entities',
    },
  },

  // Conflict resolution strategies
  conflictResolution: {
    default: 'last-write-wins',

    strategies: {
      'last-write-wins': {
        description: 'Most recent update takes precedence',
        compareField: 'updatedAt',
      },

      'source-priority': {
        description: 'Prioritize updates from specific platform',
        priority: ['salesforce', 'hubspot', 'custom'],
      },

      merge: {
        description: 'Intelligently merge non-conflicting fields',
        rules: {
          email: 'preserve-verified',
          phone: 'prefer-non-null',
          address: 'most-complete',
          custom_fields: 'merge-all',
        },
      },

      manual: {
        description: 'Flag for human review',
        threshold: 'high-value-contacts',
        notifyChannels: ['email', 'slack'],
      },
    },

    // Field-level resolution rules
    fieldRules: {
      email: {
        strategy: 'preserve-verified',
        validation: 'email-format',
        deduplication: true,
      },
      phone: {
        strategy: 'prefer-most-recent',
        normalization: 'E164',
        validation: 'phone-number',
      },
      company: {
        strategy: 'merge',
        enrichment: 'company-lookup-api',
      },
    },
  },

  // Field mapping configuration
  fieldMapping: {
    contact: {
      salesforce: {
        firstName: 'FirstName',
        lastName: 'LastName',
        email: 'Email',
        phone: 'Phone',
        company: 'Account.Name',
        title: 'Title',
        customFields: {
          custom__linkedin: 'LinkedIn_URL__c',
          custom__industry: 'Industry__c',
        },
      },
      hubspot: {
        firstName: 'firstname',
        lastName: 'lastname',
        email: 'email',
        phone: 'phone',
        company: 'company',
        title: 'jobtitle',
        customFields: {
          custom__linkedin: 'linkedin_url',
          custom__industry: 'industry',
        },
      },
      custom: {
        firstName: 'first_name',
        lastName: 'last_name',
        email: 'email_address',
        phone: 'phone_number',
        company: 'organization_name',
        title: 'job_title',
      },
    },
  },

  // Webhook configuration
  webhooks: {
    endpoint: 'https://api.example.com/webhooks/crm-sync',
    signatureVerification: true,
    retryPolicy: {
      maxRetries: 3,
      backoff: 'exponential',
      initialDelay: 1000,
    },
    events: ['contact.created', 'contact.updated', 'contact.deleted', 'company.updated', 'deal.stage.changed'],
  },

  // Monitoring and alerting
  monitoring: {
    metrics: {
      syncSuccessRate: { threshold: 0.95, alert: true },
      syncLatency: { threshold: 5000, unit: 'ms', alert: true },
      conflictRate: { threshold: 0.1, alert: false },
      apiErrorRate: { threshold: 0.05, alert: true },
      deduplicationRate: { threshold: 0.02, alert: false },
    },

    alerts: {
      channels: ['email', 'slack', 'pagerduty'],
      severity: {
        critical: ['apiAuthFailure', 'webhookDown', 'syncFailureSpike'],
        warning: ['rateLimitApproaching', 'highConflictRate'],
        info: ['scheduledSyncComplete', 'fullSyncStarted'],
      },
    },

    dashboards: {
      primary: {
        metrics: ['syncVolume', 'successRate', 'latency', 'conflicts'],
        refreshInterval: 60,
        retention: 90, // days
      },
    },
  },
})

await $.AdvancedCRMService.stores(advancedCrmService)

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Core sync engine implementation
class CRMSyncEngine {
  private platforms: Map<string, PlatformAdapter>
  private syncState: Map<string, SyncState>
  private conflictResolver: ConflictResolver

  constructor() {
    this.platforms = new Map()
    this.syncState = new Map()
    this.conflictResolver = new ConflictResolver()
  }

  // Register platform adapters
  async registerPlatform(name: string, adapter: PlatformAdapter) {
    this.platforms.set(name, adapter)

    await $.PlatformAdapter.creates({
      name,
      status: 'active',
      registeredAt: new Date().toISOString(),
    })
  }

  // Bidirectional sync operation
  async syncEntity(entityType: string, entityId: string, sourcePlatform: string, targetPlatforms: string[]) {
    const startTime = Date.now()
    const syncId = `sync_${Date.now()}_${Math.random().toString(36)}`

    try {
      // Track sync operation
      await $.SyncOperation.creates({
        syncId,
        entityType,
        entityId,
        sourcePlatform,
        targetPlatforms,
        status: 'in-progress',
        startedAt: new Date().toISOString(),
      })

      // Fetch entity from source platform
      const sourceAdapter = this.platforms.get(sourcePlatform)
      if (!sourceAdapter) {
        throw new Error(`Platform adapter not found: ${sourcePlatform}`)
      }

      const sourceEntity = await sourceAdapter.fetchEntity(entityType, entityId)

      // Normalize entity data to common format
      const normalizedEntity = await this.normalizeEntity(sourceEntity, sourcePlatform, entityType)

      // Sync to each target platform
      const syncResults = await Promise.allSettled(
        targetPlatforms.map(async (targetPlatform) => {
          const targetAdapter = this.platforms.get(targetPlatform)
          if (!targetAdapter) {
            throw new Error(`Platform adapter not found: ${targetPlatform}`)
          }

          // Check for existing entity in target
          const existingEntity = await targetAdapter.findEntity(entityType, normalizedEntity)

          if (existingEntity) {
            // Handle update with conflict resolution
            return await this.handleUpdate(normalizedEntity, existingEntity, targetPlatform, targetAdapter)
          } else {
            // Create new entity
            return await this.handleCreate(normalizedEntity, targetPlatform, targetAdapter)
          }
        })
      )

      // Process results
      const successful = syncResults.filter((r) => r.status === 'fulfilled').length
      const failed = syncResults.filter((r) => r.status === 'rejected').length

      const duration = Date.now() - startTime

      // Update sync operation status
      await $.SyncOperation.updates({
        syncId,
        status: failed === 0 ? 'completed' : 'partial',
        successful,
        failed,
        duration,
        completedAt: new Date().toISOString(),
      })

      // Send metrics
      await send(
        $.SyncMetric.creates({
          syncId,
          operation: 'bidirectional-sync',
          entityType,
          sourcePlatform,
          targetCount: targetPlatforms.length,
          successCount: successful,
          failureCount: failed,
          duration,
          timestamp: new Date().toISOString(),
        })
      )

      return {
        syncId,
        success: failed === 0,
        results: syncResults,
        duration,
      }
    } catch (error) {
      // Handle sync failure
      await $.SyncOperation.updates({
        syncId,
        status: 'failed',
        error: error.message,
        completedAt: new Date().toISOString(),
      })

      await send(
        $.SyncError.creates({
          syncId,
          error: error.message,
          stack: error.stack,
          timestamp: new Date().toISOString(),
        })
      )

      throw error
    }
  }

  // Normalize entity from platform-specific format
  private async normalizeEntity(entity: any, platform: string, entityType: string) {
    const service = await $.AdvancedCRMService.finds()
    const fieldMapping = service.fieldMapping[entityType][platform]

    const normalized: any = {
      id: entity.id,
      type: entityType,
      sourcePlatform: platform,
      sourceId: entity.id,
      updatedAt: entity.updatedAt || new Date().toISOString(),
    }

    // Map standard fields
    for (const [standardField, platformField] of Object.entries(fieldMapping)) {
      if (standardField !== 'customFields') {
        normalized[standardField] = this.getNestedValue(entity, platformField as string)
      }
    }

    // Map custom fields
    if (fieldMapping.customFields) {
      normalized.customFields = {}
      for (const [customField, platformField] of Object.entries(fieldMapping.customFields)) {
        normalized.customFields[customField] = entity[platformField]
      }
    }

    return normalized
  }

  // Helper to get nested object values
  private getNestedValue(obj: any, path: string) {
    return path.split('.').reduce((current, prop) => current?.[prop], obj)
  }

  // Handle entity update
  private async handleUpdate(normalized: any, existing: any, platform: string, adapter: PlatformAdapter) {
    // Check for conflicts
    const conflict = await this.conflictResolver.detectConflict(normalized, existing)

    if (conflict) {
      const resolution = await this.conflictResolver.resolve(conflict, normalized, existing)

      if (resolution.strategy === 'manual') {
        // Flag for manual review
        await send(
          $.ConflictAlert.creates({
            entityType: normalized.type,
            entityId: normalized.id,
            sourcePlatform: normalized.sourcePlatform,
            targetPlatform: platform,
            conflict,
            timestamp: new Date().toISOString(),
          })
        )
        return { status: 'conflict-flagged', conflict }
      }

      normalized = resolution.resolved
    }

    // Transform to platform format
    const platformEntity = await adapter.transformEntity(normalized)

    // Update in target platform
    const result = await adapter.updateEntity(normalized.type, existing.id, platformEntity)

    return { status: 'updated', result }
  }

  // Handle entity creation
  private async handleCreate(normalized: any, platform: string, adapter: PlatformAdapter) {
    // Transform to platform format
    const platformEntity = await adapter.transformEntity(normalized)

    // Create in target platform
    const result = await adapter.createEntity(normalized.type, platformEntity)

    // Store mapping for future syncs
    await $.EntityMapping.creates({
      entityType: normalized.type,
      sourceId: normalized.id,
      sourcePlatform: normalized.sourcePlatform,
      targetId: result.id,
      targetPlatform: platform,
      createdAt: new Date().toISOString(),
    })

    return { status: 'created', result }
  }
}

// Initialize sync engine
const syncEngine = new CRMSyncEngine()
await $.SyncEngine.stores(syncEngine)

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Conflict resolution implementation
class ConflictResolver {
  private strategies: Map<string, ConflictStrategy>

  constructor() {
    this.strategies = new Map()
    this.initializeStrategies()
  }

  private initializeStrategies() {
    // Last Write Wins strategy
    this.strategies.set('last-write-wins', {
      name: 'Last Write Wins',
      resolve: async (conflict, source, target) => {
        const sourceTime = new Date(source.updatedAt).getTime()
        const targetTime = new Date(target.updatedAt).getTime()

        return {
          strategy: 'last-write-wins',
          winner: sourceTime > targetTime ? 'source' : 'target',
          resolved: sourceTime > targetTime ? source : target,
          reason: `${sourceTime > targetTime ? 'Source' : 'Target'} has more recent timestamp`,
        }
      },
    })

    // Source Priority strategy
    this.strategies.set('source-priority', {
      name: 'Source Priority',
      resolve: async (conflict, source, target) => {
        const service = await $.AdvancedCRMService.finds()
        const priority = service.conflictResolution.strategies['source-priority'].priority

        const sourceIndex = priority.indexOf(source.sourcePlatform)
        const targetIndex = priority.indexOf(target.sourcePlatform)

        return {
          strategy: 'source-priority',
          winner: sourceIndex < targetIndex ? 'source' : 'target',
          resolved: sourceIndex < targetIndex ? source : target,
          reason: `Platform ${sourceIndex < targetIndex ? source.sourcePlatform : target.sourcePlatform} has higher priority`,
        }
      },
    })

    // Intelligent Merge strategy
    this.strategies.set('merge', {
      name: 'Intelligent Merge',
      resolve: async (conflict, source, target) => {
        const service = await $.AdvancedCRMService.finds()
        const mergeRules = service.conflictResolution.strategies.merge.rules

        const merged = { ...target }

        for (const [field, value] of Object.entries(source)) {
          if (field === 'id' || field === 'type') continue

          const rule = mergeRules[field]

          if (!rule) {
            // No specific rule, prefer non-null values
            if (value !== null && value !== undefined) {
              merged[field] = value
            }
            continue
          }

          switch (rule) {
            case 'preserve-verified':
              if (source[`${field}_verified`] && !target[`${field}_verified`]) {
                merged[field] = value
              }
              break

            case 'prefer-non-null':
              if (value !== null && value !== undefined) {
                merged[field] = value
              }
              break

            case 'most-complete':
              if (this.isMoreComplete(value, target[field])) {
                merged[field] = value
              }
              break

            case 'merge-all':
              merged[field] = { ...target[field], ...value }
              break

            default:
              merged[field] = value
          }
        }

        return {
          strategy: 'merge',
          winner: 'merged',
          resolved: merged,
          reason: 'Intelligently merged non-conflicting fields',
        }
      },
    })

    // Manual Review strategy
    this.strategies.set('manual', {
      name: 'Manual Review',
      resolve: async (conflict, source, target) => {
        return {
          strategy: 'manual',
          winner: null,
          resolved: null,
          reason: 'Conflict requires manual review',
          requiresReview: true,
        }
      },
    })
  }

  // Detect conflicts between entities
  async detectConflict(source: any, target: any): Promise<Conflict | null> {
    const conflicts: FieldConflict[] = []

    // Compare timestamps
    const sourceTime = new Date(source.updatedAt).getTime()
    const targetTime = new Date(target.updatedAt).getTime()

    // If target is newer, check for field conflicts
    if (targetTime > sourceTime) {
      for (const [field, sourceValue] of Object.entries(source)) {
        if (field === 'id' || field === 'type' || field === 'updatedAt') continue

        const targetValue = target[field]

        if (sourceValue !== targetValue && targetValue !== null && targetValue !== undefined) {
          conflicts.push({
            field,
            sourceValue,
            targetValue,
            sourceTime,
            targetTime,
          })
        }
      }
    }

    if (conflicts.length === 0) return null

    return {
      entityType: source.type,
      entityId: source.id,
      sourcePlatform: source.sourcePlatform,
      targetPlatform: target.sourcePlatform,
      conflicts,
      detectedAt: new Date().toISOString(),
    }
  }

  // Resolve conflict using configured strategy
  async resolve(conflict: Conflict, source: any, target: any) {
    const service = await $.AdvancedCRMService.finds()
    const defaultStrategy = service.conflictResolution.default

    // Check for field-specific rules
    const hasHighValueConflict = conflict.conflicts.some((c) => ['email', 'company', 'revenue'].includes(c.field))

    const strategyName = hasHighValueConflict ? 'manual' : defaultStrategy
    const strategy = this.strategies.get(strategyName)

    if (!strategy) {
      throw new Error(`Unknown conflict resolution strategy: ${strategyName}`)
    }

    const resolution = await strategy.resolve(conflict, source, target)

    // Log resolution
    await $.ConflictResolution.creates({
      conflictId: `conflict_${Date.now()}`,
      entityType: conflict.entityType,
      entityId: conflict.entityId,
      strategy: strategyName,
      resolution,
      timestamp: new Date().toISOString(),
    })

    return resolution
  }

  // Helper to determine if value is more complete
  private isMoreComplete(value1: any, value2: any): boolean {
    if (typeof value1 === 'object' && typeof value2 === 'object') {
      const keys1 = Object.keys(value1).filter((k) => value1[k] != null)
      const keys2 = Object.keys(value2).filter((k) => value2[k] != null)
      return keys1.length > keys2.length
    }

    if (typeof value1 === 'string' && typeof value2 === 'string') {
      return value1.length > value2.length
    }

    return false
  }
}

// Type definitions
interface Conflict {
  entityType: string
  entityId: string
  sourcePlatform: string
  targetPlatform: string
  conflicts: FieldConflict[]
  detectedAt: string
}

interface FieldConflict {
  field: string
  sourceValue: any
  targetValue: any
  sourceTime: number
  targetTime: number
}

interface ConflictStrategy {
  name: string
  resolve: (conflict: Conflict, source: any, target: any) => Promise<any>
}

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Platform adapter for Salesforce
class SalesforcePlatformAdapter implements PlatformAdapter {
  private apiVersion = 'v58.0'
  private baseUrl: string
  private accessToken: string

  constructor(credentials: any) {
    this.baseUrl = credentials.instanceUrl
    this.accessToken = credentials.accessToken
  }

  // Fetch entity from Salesforce
  async fetchEntity(entityType: string, entityId: string) {
    const endpoint = `${this.baseUrl}/services/data/${this.apiVersion}/sobjects/${this.mapEntityType(entityType)}/${entityId}`

    const response = await api.get(endpoint, {
      headers: {
        Authorization: `Bearer ${this.accessToken}`,
        'Content-Type': 'application/json',
      },
    })

    return response.data
  }

  // Find entity by matching criteria
  async findEntity(entityType: string, criteria: any) {
    const soqlFields = this.getFieldsForQuery(entityType)
    const whereClause = this.buildWhereClause(criteria)

    const query = `SELECT ${soqlFields.join(', ')} FROM ${this.mapEntityType(entityType)} WHERE ${whereClause} LIMIT 1`

    const endpoint = `${this.baseUrl}/services/data/${this.apiVersion}/query?q=${encodeURIComponent(query)}`

    const response = await api.get(endpoint, {
      headers: {
        Authorization: `Bearer ${this.accessToken}`,
      },
    })

    return response.data.records[0] || null
  }

  // Transform normalized entity to Salesforce format
  async transformEntity(normalized: any) {
    const service = await $.AdvancedCRMService.finds()
    const fieldMapping = service.fieldMapping[normalized.type].salesforce

    const salesforceEntity: any = {}

    // Map standard fields
    for (const [standardField, salesforceField] of Object.entries(fieldMapping)) {
      if (standardField === 'customFields') continue

      if (normalized[standardField] !== undefined) {
        this.setNestedValue(salesforceEntity, salesforceField as string, normalized[standardField])
      }
    }

    // Map custom fields
    if (normalized.customFields && fieldMapping.customFields) {
      for (const [customField, salesforceField] of Object.entries(fieldMapping.customFields)) {
        if (normalized.customFields[customField] !== undefined) {
          salesforceEntity[salesforceField] = normalized.customFields[customField]
        }
      }
    }

    return salesforceEntity
  }

  // Create entity in Salesforce
  async createEntity(entityType: string, entity: any) {
    const endpoint = `${this.baseUrl}/services/data/${this.apiVersion}/sobjects/${this.mapEntityType(entityType)}`

    const response = await api.post(endpoint, entity, {
      headers: {
        Authorization: `Bearer ${this.accessToken}`,
        'Content-Type': 'application/json',
      },
    })

    return response.data
  }

  // Update entity in Salesforce
  async updateEntity(entityType: string, entityId: string, entity: any) {
    const endpoint = `${this.baseUrl}/services/data/${this.apiVersion}/sobjects/${this.mapEntityType(entityType)}/${entityId}`

    const response = await api.patch(endpoint, entity, {
      headers: {
        Authorization: `Bearer ${this.accessToken}`,
        'Content-Type': 'application/json',
      },
    })

    return { id: entityId, success: true }
  }

  // Map entity type to Salesforce object name
  private mapEntityType(entityType: string): string {
    const mapping: Record<string, string> = {
      contact: 'Contact',
      lead: 'Lead',
      account: 'Account',
      opportunity: 'Opportunity',
    }
    return mapping[entityType] || entityType
  }

  // Get fields for SOQL query
  private getFieldsForQuery(entityType: string): string[] {
    const baseFields = ['Id', 'CreatedDate', 'LastModifiedDate']
    const entityFields: Record<string, string[]> = {
      contact: ['FirstName', 'LastName', 'Email', 'Phone', 'Title', 'AccountId'],
      lead: ['FirstName', 'LastName', 'Email', 'Phone', 'Company', 'Title'],
      account: ['Name', 'Industry', 'Website', 'Phone'],
      opportunity: ['Name', 'StageName', 'Amount', 'CloseDate', 'AccountId'],
    }
    return [...baseFields, ...(entityFields[entityType] || [])]
  }

  // Build WHERE clause from criteria
  private buildWhereClause(criteria: any): string {
    const conditions: string[] = []

    if (criteria.email) {
      conditions.push(`Email = '${criteria.email.replace(/'/g, "\\'")}'`)
    }
    if (criteria.firstName && criteria.lastName) {
      conditions.push(`FirstName = '${criteria.firstName.replace(/'/g, "\\'")}'`)
      conditions.push(`LastName = '${criteria.lastName.replace(/'/g, "\\'")}'`)
    }

    return conditions.join(' AND ')
  }

  // Helper to set nested object values
  private setNestedValue(obj: any, path: string, value: any) {
    const parts = path.split('.')
    const last = parts.pop()!
    const target = parts.reduce((current, prop) => {
      if (!current[prop]) current[prop] = {}
      return current[prop]
    }, obj)
    target[last] = value
  }
}

// Platform adapter for HubSpot
class HubSpotPlatformAdapter implements PlatformAdapter {
  private baseUrl = 'https://api.hubapi.com'
  private apiKey: string

  constructor(credentials: any) {
    this.apiKey = credentials.apiKey
  }

  async fetchEntity(entityType: string, entityId: string) {
    const endpoint = `${this.baseUrl}/crm/v3/objects/${this.mapEntityType(entityType)}/${entityId}`

    const response = await api.get(endpoint, {
      params: {
        properties: this.getPropertiesForEntity(entityType).join(','),
      },
      headers: {
        Authorization: `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json',
      },
    })

    return this.flattenHubSpotEntity(response.data)
  }

  async findEntity(entityType: string, criteria: any) {
    const endpoint = `${this.baseUrl}/crm/v3/objects/${this.mapEntityType(entityType)}/search`

    const searchRequest = {
      filterGroups: [
        {
          filters: this.buildFilters(criteria),
        },
      ],
      properties: this.getPropertiesForEntity(entityType),
      limit: 1,
    }

    const response = await api.post(endpoint, searchRequest, {
      headers: {
        Authorization: `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json',
      },
    })

    return response.data.results[0] ? this.flattenHubSpotEntity(response.data.results[0]) : null
  }

  async transformEntity(normalized: any) {
    const service = await $.AdvancedCRMService.finds()
    const fieldMapping = service.fieldMapping[normalized.type].hubspot

    const properties: any = {}

    // Map standard fields
    for (const [standardField, hubspotProperty] of Object.entries(fieldMapping)) {
      if (standardField === 'customFields') continue

      if (normalized[standardField] !== undefined) {
        properties[hubspotProperty as string] = normalized[standardField]
      }
    }

    // Map custom fields
    if (normalized.customFields && fieldMapping.customFields) {
      for (const [customField, hubspotProperty] of Object.entries(fieldMapping.customFields)) {
        if (normalized.customFields[customField] !== undefined) {
          properties[hubspotProperty] = normalized.customFields[customField]
        }
      }
    }

    return { properties }
  }

  async createEntity(entityType: string, entity: any) {
    const endpoint = `${this.baseUrl}/crm/v3/objects/${this.mapEntityType(entityType)}`

    const response = await api.post(endpoint, entity, {
      headers: {
        Authorization: `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json',
      },
    })

    return response.data
  }

  async updateEntity(entityType: string, entityId: string, entity: any) {
    const endpoint = `${this.baseUrl}/crm/v3/objects/${this.mapEntityType(entityType)}/${entityId}`

    const response = await api.patch(endpoint, entity, {
      headers: {
        Authorization: `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json',
      },
    })

    return response.data
  }

  private mapEntityType(entityType: string): string {
    const mapping: Record<string, string> = {
      contact: 'contacts',
      company: 'companies',
      deal: 'deals',
      ticket: 'tickets',
    }
    return mapping[entityType] || entityType
  }

  private getPropertiesForEntity(entityType: string): string[] {
    const properties: Record<string, string[]> = {
      contact: ['firstname', 'lastname', 'email', 'phone', 'company', 'jobtitle'],
      company: ['name', 'domain', 'industry', 'phone'],
      deal: ['dealname', 'dealstage', 'amount', 'closedate'],
    }
    return properties[entityType] || []
  }

  private buildFilters(criteria: any) {
    const filters: any[] = []

    if (criteria.email) {
      filters.push({
        propertyName: 'email',
        operator: 'EQ',
        value: criteria.email,
      })
    }

    return filters
  }

  private flattenHubSpotEntity(entity: any) {
    return {
      id: entity.id,
      ...entity.properties,
      updatedAt: entity.updatedAt,
    }
  }
}

// Platform adapter interface
interface PlatformAdapter {
  fetchEntity(entityType: string, entityId: string): Promise<any>
  findEntity(entityType: string, criteria: any): Promise<any>
  transformEntity(normalized: any): Promise<any>
  createEntity(entityType: string, entity: any): Promise<any>
  updateEntity(entityType: string, entityId: string, entity: any): Promise<any>
}

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Rate limiter implementation
class RateLimiter {
  private limits: Map<string, RateLimit>
  private windows: Map<string, TimeWindow>

  constructor() {
    this.limits = new Map()
    this.windows = new Map()
    this.initializeLimits()
  }

  private async initializeLimits() {
    const service = await $.AdvancedCRMService.finds()
    const rateLimits = service.rateLimits

    for (const [platform, config] of Object.entries(rateLimits)) {
      this.limits.set(platform, {
        platform,
        config,
        current: 0,
        resetAt: null,
      })
    }
  }

  // Check if request is allowed
  async checkLimit(platform: string, cost: number = 1): Promise<RateLimitResult> {
    const limit = this.limits.get(platform)
    if (!limit) {
      return { allowed: true, remaining: Infinity, resetAt: null }
    }

    const now = Date.now()
    const windowKey = `${platform}_${this.getWindowKey(now, limit.config)}`

    let window = this.windows.get(windowKey)
    if (!window) {
      window = {
        start: now,
        requests: 0,
        platform,
      }
      this.windows.set(windowKey, window)
    }

    // Check different rate limit types
    const checks = []

    // Requests per second
    if (limit.config.requestsPerSecond) {
      const perSecondLimit = limit.config.requestsPerSecond
      const secondKey = `${platform}_${Math.floor(now / 1000)}`
      const secondWindow = this.windows.get(secondKey) || { requests: 0 }

      if (secondWindow.requests + cost > perSecondLimit) {
        const resetAt = (Math.floor(now / 1000) + 1) * 1000
        return {
          allowed: false,
          remaining: 0,
          resetAt: new Date(resetAt).toISOString(),
          retryAfter: resetAt - now,
        }
      }
      checks.push(true)
    }

    // Requests per day
    if (limit.config.requestsPerDay) {
      const perDayLimit = limit.config.requestsPerDay
      const dayKey = `${platform}_${Math.floor(now / 86400000)}`
      const dayWindow = this.windows.get(dayKey) || { requests: 0 }

      if (dayWindow.requests + cost > perDayLimit) {
        const resetAt = (Math.floor(now / 86400000) + 1) * 86400000
        return {
          allowed: false,
          remaining: 0,
          resetAt: new Date(resetAt).toISOString(),
          retryAfter: resetAt - now,
        }
      }
      checks.push(true)
    }

    // Burst limit
    if (limit.config.burstLimit) {
      const burstWindow = 10000 // 10 seconds
      const burstKey = `${platform}_burst_${Math.floor(now / burstWindow)}`
      const burstWindowData = this.windows.get(burstKey) || { requests: 0 }

      if (burstWindowData.requests + cost > limit.config.burstLimit) {
        const resetAt = (Math.floor(now / burstWindow) + 1) * burstWindow
        return {
          allowed: false,
          remaining: 0,
          resetAt: new Date(resetAt).toISOString(),
          retryAfter: resetAt - now,
        }
      }
      checks.push(true)
    }

    return {
      allowed: true,
      remaining: this.calculateRemaining(platform, limit),
      resetAt: null,
    }
  }

  // Record request
  async recordRequest(platform: string, cost: number = 1) {
    const now = Date.now()
    const limit = this.limits.get(platform)
    if (!limit) return

    // Update all relevant windows
    if (limit.config.requestsPerSecond) {
      const secondKey = `${platform}_${Math.floor(now / 1000)}`
      const window = this.windows.get(secondKey) || { requests: 0, start: now }
      window.requests += cost
      this.windows.set(secondKey, window)
    }

    if (limit.config.requestsPerDay) {
      const dayKey = `${platform}_${Math.floor(now / 86400000)}`
      const window = this.windows.get(dayKey) || { requests: 0, start: now }
      window.requests += cost
      this.windows.set(dayKey, window)
    }

    if (limit.config.burstLimit) {
      const burstKey = `${platform}_burst_${Math.floor(now / 10000)}`
      const window = this.windows.get(burstKey) || { requests: 0, start: now }
      window.requests += cost
      this.windows.set(burstKey, window)
    }

    // Store metrics
    await $.RateLimitMetric.creates({
      platform,
      cost,
      timestamp: new Date().toISOString(),
    })

    // Cleanup old windows
    await this.cleanupOldWindows()
  }

  // Wait for rate limit to reset
  async waitForReset(platform: string): Promise<void> {
    const result = await this.checkLimit(platform)
    if (result.allowed) return

    const waitTime = result.retryAfter || 1000

    await send(
      $.RateLimitWait.creates({
        platform,
        waitTime,
        reason: 'Rate limit exceeded',
        timestamp: new Date().toISOString(),
      })
    )

    await new Promise((resolve) => setTimeout(resolve, waitTime))
  }

  private getWindowKey(timestamp: number, config: any): string {
    if (config.requestsPerSecond) {
      return `second_${Math.floor(timestamp / 1000)}`
    }
    if (config.requestsPerDay) {
      return `day_${Math.floor(timestamp / 86400000)}`
    }
    return `default_${Math.floor(timestamp / 60000)}`
  }

  private calculateRemaining(platform: string, limit: RateLimit): number {
    const now = Date.now()
    let remaining = Infinity

    if (limit.config.requestsPerSecond) {
      const secondKey = `${platform}_${Math.floor(now / 1000)}`
      const window = this.windows.get(secondKey)
      const used = window?.requests || 0
      remaining = Math.min(remaining, limit.config.requestsPerSecond - used)
    }

    if (limit.config.requestsPerDay) {
      const dayKey = `${platform}_${Math.floor(now / 86400000)}`
      const window = this.windows.get(dayKey)
      const used = window?.requests || 0
      remaining = Math.min(remaining, limit.config.requestsPerDay - used)
    }

    return remaining
  }

  private async cleanupOldWindows() {
    const now = Date.now()
    const oldWindows = []

    for (const [key, window] of this.windows.entries()) {
      if (now - window.start > 86400000) {
        // Older than 1 day
        oldWindows.push(key)
      }
    }

    for (const key of oldWindows) {
      this.windows.delete(key)
    }
  }
}

// Rate limiter wrapper for API calls
async function rateLimitedApiCall<T>(platform: string, apiCall: () => Promise<T>, rateLimiter: RateLimiter): Promise<T> {
  const maxRetries = 3
  let attempt = 0

  while (attempt < maxRetries) {
    const limitCheck = await rateLimiter.checkLimit(platform)

    if (!limitCheck.allowed) {
      await rateLimiter.waitForReset(platform)
      attempt++
      continue
    }

    try {
      const result = await apiCall()
      await rateLimiter.recordRequest(platform)
      return result
    } catch (error: any) {
      // Handle rate limit errors from API
      if (error.status === 429) {
        const retryAfter = error.headers?.['retry-after'] || 60
        await new Promise((resolve) => setTimeout(resolve, retryAfter * 1000))
        attempt++
        continue
      }
      throw error
    }
  }

  throw new Error(`Rate limit exceeded after ${maxRetries} retries for platform ${platform}`)
}

interface RateLimit {
  platform: string
  config: any
  current: number
  resetAt: number | null
}

interface TimeWindow {
  start: number
  requests: number
  platform: string
}

interface RateLimitResult {
  allowed: boolean
  remaining: number
  resetAt: string | null
  retryAfter?: number
}

// Initialize rate limiter
const rateLimiter = new RateLimiter()
await $.RateLimiter.stores(rateLimiter)

import $, { ai, db, on, send, every, api } from 'sdk.do'
import crypto from 'crypto'

// Webhook event handler
on($.WebhookEvent.received, async (event) => {
  const { platform, payload, headers, timestamp } = event

  try {
    // Verify webhook signature
    const isValid = await verifyWebhookSignature(platform, payload, headers)
    if (!isValid) {
      await send(
        $.WebhookError.creates({
          platform,
          error: 'Invalid webhook signature',
          timestamp: new Date().toISOString(),
        })
      )
      return
    }

    // Parse webhook payload
    const parsedEvent = await parseWebhookPayload(platform, payload)

    // Store webhook event
    await $.WebhookEventLog.creates({
      eventId: parsedEvent.id,
      platform,
      eventType: parsedEvent.type,
      entityType: parsedEvent.entityType,
      entityId: parsedEvent.entityId,
      receivedAt: new Date().toISOString(),
    })

    // Trigger sync based on event type
    switch (parsedEvent.type) {
      case 'contact.created':
      case 'contact.updated':
        await handleContactEvent(parsedEvent, platform)
        break

      case 'contact.deleted':
        await handleContactDeletion(parsedEvent, platform)
        break

      case 'company.updated':
        await handleCompanyEvent(parsedEvent, platform)
        break

      case 'deal.stage.changed':
        await handleDealStageChange(parsedEvent, platform)
        break

      default:
        await send(
          $.WebhookEventIgnored.creates({
            platform,
            eventType: parsedEvent.type,
            reason: 'Unsupported event type',
            timestamp: new Date().toISOString(),
          })
        )
    }
  } catch (error) {
    await send(
      $.WebhookError.creates({
        platform,
        error: error.message,
        stack: error.stack,
        timestamp: new Date().toISOString(),
      })
    )
  }
})

// Verify webhook signature
async function verifyWebhookSignature(platform: string, payload: any, headers: any): Promise<boolean> {
  const credentials = await $.PlatformCredentials.finds({ platform })

  switch (platform) {
    case 'salesforce':
      return verifySalesforceSignature(payload, headers, credentials)

    case 'hubspot':
      return verifyHubSpotSignature(payload, headers, credentials)

    default:
      return verifyGenericSignature(payload, headers, credentials)
  }
}

// Salesforce signature verification
function verifySalesforceSignature(payload: any, headers: any, credentials: any): boolean {
  const signature = headers['x-sfdc-signature']
  if (!signature) return false

  const url = headers['x-sfdc-url'] || credentials.webhookUrl
  const expectedSignature = crypto
    .createHmac('sha256', credentials.webhookSecret)
    .update(url + JSON.stringify(payload))
    .digest('base64')

  return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expectedSignature))
}

// HubSpot signature verification
function verifyHubSpotSignature(payload: any, headers: any, credentials: any): boolean {
  const signature = headers['x-hubspot-signature']
  if (!signature) return false

  const timestamp = headers['x-hubspot-request-timestamp']
  const sourceString = credentials.clientSecret + JSON.stringify(payload) + timestamp

  const expectedSignature = crypto.createHash('sha256').update(sourceString).digest('hex')

  return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expectedSignature))
}

// Generic HMAC signature verification
function verifyGenericSignature(payload: any, headers: any, credentials: any): boolean {
  const signature = headers['x-webhook-signature']
  if (!signature) return false

  const expectedSignature = crypto.createHmac('sha256', credentials.webhookSecret).update(JSON.stringify(payload)).digest('hex')

  return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expectedSignature))
}

// Parse webhook payload based on platform
async function parseWebhookPayload(platform: string, payload: any) {
  switch (platform) {
    case 'salesforce':
      return {
        id: payload.event?.replayId || payload.eventId,
        type: payload.event?.type || 'unknown',
        entityType: payload.sobject?.type || 'contact',
        entityId: payload.sobject?.Id,
        data: payload.sobject,
        timestamp: payload.event?.createdDate,
      }

    case 'hubspot':
      return {
        id: payload.eventId,
        type: `${payload.objectType}.${payload.subscriptionType}`,
        entityType: payload.objectType,
        entityId: payload.objectId,
        data: payload.properties,
        timestamp: new Date(payload.occurredAt).toISOString(),
      }

    default:
      return {
        id: payload.id || crypto.randomUUID(),
        type: payload.event_type || payload.type,
        entityType: payload.entity_type || 'unknown',
        entityId: payload.entity_id || payload.id,
        data: payload.data || payload,
        timestamp: payload.timestamp || new Date().toISOString(),
      }
  }
}

// Handle contact event
async function handleContactEvent(event: any, sourcePlatform: string) {
  const syncEngine = await $.SyncEngine.finds()

  // Get target platforms (all except source)
  const service = await $.AdvancedCRMService.finds()
  const targetPlatforms = service.platforms.map((p) => p.name.toLowerCase()).filter((p) => p !== sourcePlatform)

  // Trigger bidirectional sync
  await syncEngine.syncEntity(event.entityType, event.entityId, sourcePlatform, targetPlatforms)
}

// Handle contact deletion
async function handleContactDeletion(event: any, sourcePlatform: string) {
  // Find entity mappings
  const mappings = await db.query(
    $.EntityMapping.where({
      sourceId: event.entityId,
      sourcePlatform,
    })
  )

  // Delete from target platforms
  for (const mapping of mappings) {
    const adapter = await $.PlatformAdapter.finds({ name: mapping.targetPlatform })

    try {
      await adapter.deleteEntity(mapping.entityType, mapping.targetId)

      await $.EntityMapping.deletes(mapping.id)
    } catch (error) {
      await send(
        $.DeletionError.creates({
          entityType: mapping.entityType,
          entityId: mapping.targetId,
          platform: mapping.targetPlatform,
          error: error.message,
          timestamp: new Date().toISOString(),
        })
      )
    }
  }
}

// Handle company event
async function handleCompanyEvent(event: any, sourcePlatform: string) {
  // Similar to contact event handling
  await handleContactEvent(event, sourcePlatform)
}

// Handle deal stage change
async function handleDealStageChange(event: any, sourcePlatform: string) {
  // Sync deal updates to other platforms
  await handleContactEvent(event, sourcePlatform)

  // Send notification for important stage changes
  if (event.data.stage === 'closed-won' || event.data.stage === 'closed-lost') {
    await send(
      $.DealStageAlert.creates({
        dealId: event.entityId,
        stage: event.data.stage,
        amount: event.data.amount,
        platform: sourcePlatform,
        timestamp: new Date().toISOString(),
      })
    )
  }
}

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Scheduled batch sync every hour
every('1 hour', async () => {
  const service = await $.AdvancedCRMService.finds()
  const syncEngine = await $.SyncEngine.finds()

  if (!service.syncStrategies.batch.enabled) return

  const startTime = Date.now()
  const batchId = `batch_${startTime}_${crypto.randomUUID()}`

  try {
    await $.BatchSync.creates({
      batchId,
      status: 'in-progress',
      startedAt: new Date().toISOString(),
    })

    // Get last sync timestamp for delta sync
    const lastSync = await $.BatchSync.finds({
      status: 'completed',
      orderBy: 'completedAt DESC',
      limit: 1,
    })

    const deltaSync = service.syncStrategies.batch.deltaSync
    const sinceTimestamp = deltaSync && lastSync ? lastSync.completedAt : null

    // Sync each platform combination
    const platforms = service.platforms.map((p) => p.name.toLowerCase())
    const syncTasks = []

    for (let i = 0; i < platforms.length; i++) {
      for (let j = i + 1; j < platforms.length; j++) {
        const sourcePlatform = platforms[i]
        const targetPlatform = platforms[j]

        // Bidirectional: sync both directions
        syncTasks.push(syncPlatformBatch(sourcePlatform, targetPlatform, sinceTimestamp, batchId, syncEngine))
        syncTasks.push(syncPlatformBatch(targetPlatform, sourcePlatform, sinceTimestamp, batchId, syncEngine))
      }
    }

    // Execute syncs with controlled parallelism
    const parallelism = service.syncStrategies.batch.parallelism || 5
    const results = await executeWithParallelism(syncTasks, parallelism)

    const successful = results.filter((r) => r.status === 'fulfilled').length
    const failed = results.filter((r) => r.status === 'rejected').length
    const totalRecords = results.filter((r) => r.status === 'fulfilled').reduce((sum, r) => sum + (r.value?.recordCount || 0), 0)

    const duration = Date.now() - startTime

    await $.BatchSync.updates({
      batchId,
      status: failed === 0 ? 'completed' : 'partial',
      recordCount: totalRecords,
      successful,
      failed,
      duration,
      completedAt: new Date().toISOString(),
    })

    await send(
      $.BatchSyncComplete.creates({
        batchId,
        recordCount: totalRecords,
        successful,
        failed,
        duration,
        timestamp: new Date().toISOString(),
      })
    )
  } catch (error) {
    await $.BatchSync.updates({
      batchId,
      status: 'failed',
      error: error.message,
      completedAt: new Date().toISOString(),
    })

    await send(
      $.BatchSyncError.creates({
        batchId,
        error: error.message,
        timestamp: new Date().toISOString(),
      })
    )
  }
})

// Sync batch of records between platforms
async function syncPlatformBatch(
  sourcePlatform: string,
  targetPlatform: string,
  sinceTimestamp: string | null,
  batchId: string,
  syncEngine: any
): Promise<{ recordCount: number }> {
  const service = await $.AdvancedCRMService.finds()
  const rateLimiter = await $.RateLimiter.finds()
  const chunkSize = service.syncStrategies.batch.chunkSize || 100

  let totalSynced = 0
  let offset = 0
  let hasMore = true

  const sourceAdapter = await $.PlatformAdapter.finds({ name: sourcePlatform })

  while (hasMore) {
    // Check rate limits
    await rateLimiter.waitForReset(sourcePlatform)

    // Fetch batch of updated records
    const records = await sourceAdapter.fetchUpdatedRecords('contact', sinceTimestamp, offset, chunkSize)

    if (records.length === 0) {
      hasMore = false
      break
    }

    // Sync each record
    const syncPromises = records.map(async (record: any) => {
      try {
        await syncEngine.syncEntity('contact', record.id, sourcePlatform, [targetPlatform])
        return { success: true }
      } catch (error) {
        return { success: false, error: error.message }
      }
    })

    const results = await Promise.allSettled(syncPromises)
    const successCount = results.filter((r) => r.status === 'fulfilled' && r.value.success).length

    totalSynced += successCount

    await $.BatchSyncProgress.creates({
      batchId,
      sourcePlatform,
      targetPlatform,
      offset,
      recordsProcessed: records.length,
      recordsSynced: successCount,
      timestamp: new Date().toISOString(),
    })

    offset += chunkSize

    if (records.length < chunkSize) {
      hasMore = false
    }

    // Add delay between batches to avoid overwhelming APIs
    await new Promise((resolve) => setTimeout(resolve, 1000))
  }

  return { recordCount: totalSynced }
}

// Execute tasks with controlled parallelism
async function executeWithParallelism<T>(tasks: (() => Promise<T>)[], parallelism: number): Promise<PromiseSettledResult<T>[]> {
  const results: PromiseSettledResult<T>[] = []

  for (let i = 0; i < tasks.length; i += parallelism) {
    const chunk = tasks.slice(i, i + parallelism)
    const chunkResults = await Promise.allSettled(chunk.map((task) => task()))
    results.push(...chunkResults)
  }

  return results
}

// Daily full sync at 2 AM
every('0 2 * * *', async () => {
  const service = await $.AdvancedCRMService.finds()

  if (!service.syncStrategies.scheduled.enabled) return

  const fullSyncId = `full_sync_${Date.now()}`

  await send(
    $.FullSyncStarted.creates({
      fullSyncId,
      scope: service.syncStrategies.scheduled.scope,
      timestamp: new Date().toISOString(),
    })
  )

  // Trigger batch sync without delta (full sync)
  const syncEngine = await $.SyncEngine.finds()
  const platforms = service.platforms.map((p) => p.name.toLowerCase())

  for (const platform of platforms) {
    const otherPlatforms = platforms.filter((p) => p !== platform)

    await syncPlatformBatch(
      platform,
      otherPlatforms[0], // Sync to first target platform
      null, // No delta, full sync
      fullSyncId,
      syncEngine
    )
  }

  await send(
    $.FullSyncComplete.creates({
      fullSyncId,
      timestamp: new Date().toISOString(),
    })
  )
})

import $, { ai, db, on, send, every, api } from 'sdk.do'

// Deduplication service
class DeduplicationService {
  // Deduplicate entities before sync
  async deduplicateEntity(entity: any, platform: string): Promise<DedupResult> {
    // Find potential duplicates
    const duplicates = await this.findDuplicates(entity, platform)

    if (duplicates.length === 0) {
      return {
        isDuplicate: false,
        entity,
        action: 'create',
      }
    }

    // Score duplicates by match quality
    const scoredDuplicates = duplicates.map((dup) => ({
      entity: dup,
      score: this.calculateMatchScore(entity, dup),
    }))

    // Sort by score (highest first)
    scoredDuplicates.sort((a, b) => b.score - a.score)

    const bestMatch = scoredDuplicates[0]

    // High confidence match (>0.8)
    if (bestMatch.score > 0.8) {
      const merged = await this.mergeEntities(entity, bestMatch.entity)

      return {
        isDuplicate: true,
        entity: merged,
        action: 'update',
        matchedId: bestMatch.entity.id,
        matchScore: bestMatch.score,
      }
    }

    // Medium confidence (0.5-0.8) - flag for review
    if (bestMatch.score > 0.5) {
      await send(
        $.PotentialDuplicate.creates({
          entityType: entity.type,
          newEntity: entity,
          existingEntity: bestMatch.entity,
          matchScore: bestMatch.score,
          platform,
          timestamp: new Date().toISOString(),
        })
      )

      return {
        isDuplicate: false,
        entity,
        action: 'create',
        flaggedForReview: true,
        potentialMatches: scoredDuplicates.slice(0, 3),
      }
    }

    // Low confidence - create new
    return {
      isDuplicate: false,
      entity,
      action: 'create',
    }
  }

  // Find potential duplicate entities
  private async findDuplicates(entity: any, platform: string): Promise<any[]> {
    const duplicates: any[] = []

    // Search by email (exact match)
    if (entity.email) {
      const emailMatches = await db.query(
        $.NormalizedEntity.where({
          email: entity.email,
          platform,
          type: entity.type,
        })
      )
      duplicates.push(...emailMatches)
    }

    // Search by phone (normalized)
    if (entity.phone) {
      const normalizedPhone = this.normalizePhone(entity.phone)
      const phoneMatches = await db.query(
        $.NormalizedEntity.where({
          phoneNormalized: normalizedPhone,
          platform,
          type: entity.type,
        })
      )
      duplicates.push(...phoneMatches)
    }

    // Search by name + company
    if (entity.firstName && entity.lastName && entity.company) {
      const nameCompanyMatches = await db.query(
        $.NormalizedEntity.where({
          firstName: entity.firstName,
          lastName: entity.lastName,
          company: entity.company,
          platform,
          type: entity.type,
        })
      )
      duplicates.push(...nameCompanyMatches)
    }

    // Fuzzy search by full name
    if (entity.firstName && entity.lastName) {
      const fullName = `${entity.firstName} ${entity.lastName}`.toLowerCase()
      const fuzzyMatches = await this.fuzzyNameSearch(fullName, platform, entity.type)
      duplicates.push(...fuzzyMatches)
    }

    // Remove duplicates from results array
    const uniqueDuplicates = Array.from(new Map(duplicates.map((d) => [d.id, d])).values())

    return uniqueDuplicates
  }

  // Calculate match score between entities
  private calculateMatchScore(entity1: any, entity2: any): number {
    let score = 0
    let weights = 0

    // Email match (highest weight)
    if (entity1.email && entity2.email) {
      weights += 0.4
      if (entity1.email.toLowerCase() === entity2.email.toLowerCase()) {
        score += 0.4
      }
    }

    // Phone match
    if (entity1.phone && entity2.phone) {
      weights += 0.2
      const phone1 = this.normalizePhone(entity1.phone)
      const phone2 = this.normalizePhone(entity2.phone)
      if (phone1 === phone2) {
        score += 0.2
      }
    }

    // Name match
    if (entity1.firstName && entity1.lastName && entity2.firstName && entity2.lastName) {
      weights += 0.25
      const nameScore = this.calculateNameSimilarity(`${entity1.firstName} ${entity1.lastName}`, `${entity2.firstName} ${entity2.lastName}`)
      score += nameScore * 0.25
    }

    // Company match
    if (entity1.company && entity2.company) {
      weights += 0.15
      const companyScore = this.calculateStringSimilarity(entity1.company, entity2.company)
      score += companyScore * 0.15
    }

    // Normalize score by total weights
    return weights > 0 ? score / weights : 0
  }

  // Calculate name similarity (handles variations)
  private calculateNameSimilarity(name1: string, name2: string): number {
    const normalize = (name: string) =>
      name
        .toLowerCase()
        .trim()
        .replace(/[^a-z\s]/g, '')

    const n1 = normalize(name1)
    const n2 = normalize(name2)

    if (n1 === n2) return 1.0

    // Check if names are swapped (first/last)
    const parts1 = n1.split(' ')
    const parts2 = n2.split(' ')

    if (parts1.length === 2 && parts2.length === 2) {
      if (parts1[0] === parts2[1] && parts1[1] === parts2[0]) {
        return 0.95 // High score for swapped names
      }
    }

    // Levenshtein distance
    return this.calculateStringSimilarity(n1, n2)
  }

  // Calculate string similarity using Levenshtein distance
  private calculateStringSimilarity(str1: string, str2: string): number {
    const s1 = str1.toLowerCase()
    const s2 = str2.toLowerCase()

    const matrix: number[][] = []

    for (let i = 0; i <= s2.length; i++) {
      matrix[i] = [i]
    }

    for (let j = 0; j <= s1.length; j++) {
      matrix[0][j] = j
    }

    for (let i = 1; i <= s2.length; i++) {
      for (let j = 1; j <= s1.length; j++) {
        if (s2.charAt(i - 1) === s1.charAt(j - 1)) {
          matrix[i][j] = matrix[i - 1][j - 1]
        } else {
          matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1, matrix[i][j - 1] + 1, matrix[i - 1][j] + 1)
        }
      }
    }

    const distance = matrix[s2.length][s1.length]
    const maxLength = Math.max(s1.length, s2.length)

    return maxLength === 0 ? 1 : 1 - distance / maxLength
  }

  // Normalize phone number to E.164 format
  private normalizePhone(phone: string): string {
    // Remove all non-numeric characters
    const digits = phone.replace(/\D/g, '')

    // Add country code if missing (assume US)
    if (digits.length === 10) {
      return `+1${digits}`
    }
    if (digits.length === 11 && digits[0] === '1') {
      return `+${digits}`
    }

    return `+${digits}`
  }

  // Fuzzy name search
  private async fuzzyNameSearch(name: string, platform: string, entityType: string): Promise<any[]> {
    // This would use a full-text search or fuzzy matching database
    // For now, return empty array (implement with actual search service)
    return []
  }

  // Merge two entities intelligently
  private async mergeEntities(newEntity: any, existingEntity: any): Promise<any> {
    const merged = { ...existingEntity }

    // Prefer non-null values from new entity
    for (const [key, value] of Object.entries(newEntity)) {
      if (key === 'id' || key === 'type') continue

      if (value !== null && value !== undefined) {
        // If existing value is null, use new value
        if (merged[key] === null || merged[key] === undefined) {
          merged[key] = value
        }
        // If new value is more recent, use it
        else if (newEntity.updatedAt > existingEntity.updatedAt) {
          merged[key] = value
        }
      }
    }

    // Merge custom fields
    if (newEntity.customFields) {
      merged.customFields = {
        ...existingEntity.customFields,
        ...newEntity.customFields,
      }
    }

    merged.updatedAt = new Date().toISOString()

    return merged
  }
}

interface DedupResult {
  isDuplicate: boolean
  entity: any
  action: 'create' | 'update'
  matchedId?: string
  matchScore?: number
  flaggedForReview?: boolean
  potentialMatches?: any[]
}

// Initialize deduplication service
const dedupService = new DeduplicationService()
await $.DeduplicationService.stores(dedupService)