mirror of
https://github.com/Dvorinka/Bookra.git
synced 2026-06-03 20:13:00 +00:00
Tomas Dvorak
7d3e3448cf
Implement a complete SMS messaging system including: - Integration with SMS Manager.cz API for sending messages. - Metered billing via Stripe using monthly aggregate invoice items. - Backend services for managing SMS settings, usage logging, and monthly reporting. - Database migrations for tenant settings, usage logs, and monthly reports. - Frontend dashboard components for SMS configuration, usage tracking, and history. - Support for customer phone numbers in the booking flow. Includes new migrations, backend services, and frontend UI components.
81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
package sms
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import (
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"context"
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"fmt"
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"strings"
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"bookra/apps/backend/internal/config"
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"bookra/apps/backend/internal/db"
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"github.com/stripe/stripe-go/v81"
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"github.com/stripe/stripe-go/v81/invoiceitem"
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)
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type BillingService struct {
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cfg config.Config
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repo db.Repository
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smsPriceIDs map[string]string // currency -> price ID
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}
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func NewBillingService(cfg config.Config, repo db.Repository) *BillingService {
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return &BillingService{
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cfg: cfg,
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repo: repo,
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smsPriceIDs: cfg.StripeSMSPriceMatrix,
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}
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}
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// PriceIDForCurrency returns the Stripe price ID for SMS in the given currency
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func (b *BillingService) PriceIDForCurrency(currency string) string {
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c := strings.ToLower(strings.TrimSpace(currency))
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if c == "" {
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c = "czk"
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}
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if id := b.smsPriceIDs[c]; id != "" {
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return id
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}
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// Fallback to CZK
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return b.smsPriceIDs["czk"]
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}
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// CreateMonthlyInvoiceItem creates a Stripe InvoiceItem for the total SMS usage of a month.
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// This adds a line item to the customer's next invoice — charging all messages together.
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func (b *BillingService) CreateMonthlyInvoiceItem(ctx context.Context, customerID string, currency string, yearMonth string, messageCount int, totalCents int) (string, error) {
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if customerID == "" {
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return "", fmt.Errorf("customer id is empty")
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}
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priceID := b.PriceIDForCurrency(currency)
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c := strings.ToLower(strings.TrimSpace(currency))
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if c == "" {
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c = "czk"
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}
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// If a Stripe price is configured, use Price + Quantity for a clean invoice line
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if priceID != "" {
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item, err := invoiceitem.New(&stripe.InvoiceItemParams{
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Customer: stripe.String(customerID),
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Price: stripe.String(priceID),
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Quantity: stripe.Int64(int64(messageCount)),
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Description: stripe.String(fmt.Sprintf("SMS Messages (%s) — %d messages", yearMonth, messageCount)),
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})
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if err != nil {
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return "", fmt.Errorf("failed to create invoice item: %w", err)
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}
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return item.ID, nil
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}
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// Fallback: explicit amount (for dev/testing when no price configured yet)
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item, err := invoiceitem.New(&stripe.InvoiceItemParams{
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Customer: stripe.String(customerID),
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Amount: stripe.Int64(int64(totalCents)),
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Currency: stripe.String(c),
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Description: stripe.String(fmt.Sprintf("SMS Messages (%s) — %d messages", yearMonth, messageCount)),
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})
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if err != nil {
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return "", fmt.Errorf("failed to create invoice item: %w", err)
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}
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return item.ID, nil
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}
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