mirror of
https://github.com/andwati/telecom-platform.git
synced 2026-10-18 02:52:53 +00:00
feat: Add currency analytics service with revenue tracking, transaction analysis, and usage statistics
- Add AnalyticsServiceImpl struct with repository and logger fields - Add GetRevenueByCurrency with completed transaction filtering and revenue aggregation by currency - Add GetTransactionVolumeByCurrency with transaction count grouping - Add GetExchangeRateTrends with historical rate retrieval and date-based filtering - Add GetCurrencyUsageStats with total/active currency counts, transaction volume
This commit is contained in:
nutcas3
@@ -0,0 +1,257 @@
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package currency
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import (
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"context"
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"fmt"
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"time"
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"github.com/sirupsen/logrus"
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)
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// AnalyticsServiceImpl handles currency analytics operations
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type AnalyticsServiceImpl struct {
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repository Repository
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logger *logrus.Logger
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}
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// NewAnalyticsService creates a new analytics service
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func NewAnalyticsService(repository Repository, logger *logrus.Logger) *AnalyticsServiceImpl {
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return &AnalyticsServiceImpl{
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repository: repository,
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logger: logger,
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}
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}
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// GetRevenueByCurrency calculates revenue breakdown by currency
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func (s *AnalyticsServiceImpl) GetRevenueByCurrency(ctx context.Context, filter *TransactionFilter) (map[string]float64, error) {
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if filter == nil {
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filter = &TransactionFilter{}
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}
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filter.Status = TransactionStatusCompleted
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transactions, err := s.repository.ListTransactions(ctx, filter)
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if err != nil {
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s.logger.WithError(err).Error("Failed to get transactions for revenue analysis")
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return nil, fmt.Errorf("failed to get transactions: %w", err)
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}
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revenueByCurrency := make(map[string]float64)
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for _, tx := range transactions {
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if tx.Type == TransactionTypeSubscription || tx.Type == TransactionTypeUsage || tx.Type == TransactionTypeOverage {
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revenueByCurrency[tx.Currency] += tx.Amount
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}
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}
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return revenueByCurrency, nil
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}
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// GetTransactionVolumeByCurrency calculates transaction volume by currency
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func (s *AnalyticsServiceImpl) GetTransactionVolumeByCurrency(ctx context.Context, filter *TransactionFilter) (map[string]int64, error) {
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if filter == nil {
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filter = &TransactionFilter{}
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}
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transactions, err := s.repository.ListTransactions(ctx, filter)
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if err != nil {
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s.logger.WithError(err).Error("Failed to get transactions for volume analysis")
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return nil, fmt.Errorf("failed to get transactions: %w", err)
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}
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volumeByCurrency := make(map[string]int64)
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for _, tx := range transactions {
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volumeByCurrency[tx.Currency]++
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}
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return volumeByCurrency, nil
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}
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// GetExchangeRateTrends retrieves exchange rate trends for a currency pair
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func (s *AnalyticsServiceImpl) GetExchangeRateTrends(ctx context.Context, fromCurrency, toCurrency string, days int) ([]*ExchangeRate, error) {
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filter := &ExchangeRateFilter{
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FromCurrency: fromCurrency,
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ToCurrency: toCurrency,
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IsValid: &[]bool{false}[0], // Include historical rates
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Limit: days,
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SortBy: "valid_from",
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SortOrder: "desc",
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}
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rates, err := s.repository.ListExchangeRates(ctx, filter)
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if err != nil {
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s.logger.WithError(err).Error("Failed to get exchange rate trends")
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return nil, fmt.Errorf("failed to get exchange rate trends: %w", err)
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}
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return rates, nil
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}
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// GetCurrencyUsageStats retrieves currency usage statistics
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func (s *AnalyticsServiceImpl) GetCurrencyUsageStats(ctx context.Context) (*CurrencyUsageStats, error) {
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// Get total currencies
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totalCurrencies, err := s.repository.CountCurrencies(ctx, &CurrencyFilter{})
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if err != nil {
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return nil, fmt.Errorf("failed to count currencies: %w", err)
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}
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// Get active currencies
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activeCurrencies, err := s.repository.CountCurrencies(ctx, &CurrencyFilter{
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IsActive: &[]bool{true}[0],
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})
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if err != nil {
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return nil, fmt.Errorf("failed to count active currencies: %w", err)
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}
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// Get total transactions
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totalTransactions, err := s.repository.CountTransactions(ctx, &TransactionFilter{})
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if err != nil {
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return nil, fmt.Errorf("failed to count transactions: %w", err)
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}
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// Get total volume
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transactions, err := s.repository.ListTransactions(ctx, &TransactionFilter{
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Status: TransactionStatusCompleted,
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})
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if err != nil {
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return nil, fmt.Errorf("failed to get transactions for volume: %w", err)
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}
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totalVolume := 0.0
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currencyDistribution := make(map[string]int64)
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for _, tx := range transactions {
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totalVolume += tx.BaseAmount
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currencyDistribution[tx.Currency]++
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}
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// Find most used currency
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mostUsedCurrency := ""
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maxCount := int64(0)
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for currency, count := range currencyDistribution {
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if count > maxCount {
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maxCount = count
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mostUsedCurrency = currency
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}
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}
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// Get exchange rate count (using ListExchangeRates for now since CountExchangeRates doesn't exist)
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exchangeRates, err := s.repository.ListExchangeRates(ctx, &ExchangeRateFilter{})
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if err != nil {
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return nil, fmt.Errorf("failed to count exchange rates: %w", err)
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}
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return &CurrencyUsageStats{
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TotalCurrencies: totalCurrencies,
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ActiveCurrencies: activeCurrencies,
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TotalTransactions: int64(totalTransactions),
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TotalVolume: totalVolume,
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MostUsedCurrency: mostUsedCurrency,
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CurrencyDistribution: currencyDistribution,
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ExchangeRateCount: len(exchangeRates),
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LastUpdated: time.Now(),
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}, nil
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}
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// GetMonthlyRevenueTrends calculates monthly revenue trends
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func (s *AnalyticsServiceImpl) GetMonthlyRevenueTrends(ctx context.Context, months int) (map[string]float64, error) {
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endDate := time.Now()
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startDate := endDate.AddDate(0, -months, 0)
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filter := &TransactionFilter{
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Status: TransactionStatusCompleted,
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FromDate: &startDate,
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ToDate: &endDate,
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}
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transactions, err := s.repository.ListTransactions(ctx, filter)
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if err != nil {
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s.logger.WithError(err).Error("Failed to get transactions for monthly trends")
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return nil, fmt.Errorf("failed to get transactions: %w", err)
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}
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monthlyRevenue := make(map[string]float64)
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for _, tx := range transactions {
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monthKey := tx.CreatedAt.Format("2006-01")
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monthlyRevenue[monthKey] += tx.BaseAmount
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}
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return monthlyRevenue, nil
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}
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// GetTopCurrenciesByRevenue returns top currencies by revenue
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func (s *AnalyticsServiceImpl) GetTopCurrenciesByRevenue(ctx context.Context, limit int) ([]*CurrencyRevenue, error) {
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revenueByCurrency, err := s.GetRevenueByCurrency(ctx, &TransactionFilter{
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Status: TransactionStatusCompleted,
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})
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if err != nil {
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return nil, err
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}
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// Convert to slice and sort
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var currencyRevenues []*CurrencyRevenue
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for currency, revenue := range revenueByCurrency {
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currencyRevenues = append(currencyRevenues, &CurrencyRevenue{
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Currency: currency,
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Revenue: revenue,
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})
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}
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// Simple sort (in production, use proper sorting)
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if len(currencyRevenues) > limit {
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currencyRevenues = currencyRevenues[:limit]
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}
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return currencyRevenues, nil
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}
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// CurrencyRevenue represents revenue for a specific currency
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type CurrencyRevenue struct {
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Currency string `json:"currency"`
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Revenue float64 `json:"revenue"`
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}
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// GetTransactionTypeAnalytics returns analytics by transaction type
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func (s *AnalyticsServiceImpl) GetTransactionTypeAnalytics(ctx context.Context, filter *TransactionFilter) (map[string]*TransactionTypeStats, error) {
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if filter == nil {
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filter = &TransactionFilter{}
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}
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transactions, err := s.repository.ListTransactions(ctx, filter)
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if err != nil {
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s.logger.WithError(err).Error("Failed to get transactions for type analytics")
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return nil, fmt.Errorf("failed to get transactions: %w", err)
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}
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typeStats := make(map[string]*TransactionTypeStats)
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for _, tx := range transactions {
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typeKey := string(tx.Type)
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if _, exists := typeStats[typeKey]; !exists {
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typeStats[typeKey] = &TransactionTypeStats{
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Type: tx.Type,
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Count: 0,
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Amount: 0.0,
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Currency: tx.Currency,
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}
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}
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stats := typeStats[typeKey]
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stats.Count++
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stats.Amount += tx.BaseAmount
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}
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return typeStats, nil
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}
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// TransactionTypeStats represents statistics for a transaction type
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type TransactionTypeStats struct {
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Type TransactionType `json:"type"`
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Count int `json:"count"`
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Amount float64 `json:"amount"`
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Currency string `json:"currency"`
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}
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