|
| 1 | +package handlers |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "sync" |
| 6 | + |
| 7 | + "github.com/NdoleStudio/httpsms/pkg/requests" |
| 8 | + "github.com/google/uuid" |
| 9 | + |
| 10 | + "github.com/NdoleStudio/httpsms/pkg/services" |
| 11 | + "github.com/NdoleStudio/httpsms/pkg/telemetry" |
| 12 | + "github.com/NdoleStudio/httpsms/pkg/validators" |
| 13 | + "github.com/davecgh/go-spew/spew" |
| 14 | + "github.com/gofiber/fiber/v2" |
| 15 | + "github.com/palantir/stacktrace" |
| 16 | +) |
| 17 | + |
| 18 | +// BulkMessageHandler handles bulk SMS http requests |
| 19 | +type BulkMessageHandler struct { |
| 20 | + handler |
| 21 | + logger telemetry.Logger |
| 22 | + tracer telemetry.Tracer |
| 23 | + validator *validators.BulkMessageHandlerValidator |
| 24 | + messageService *services.MessageService |
| 25 | + billingService *services.BillingService |
| 26 | +} |
| 27 | + |
| 28 | +// NewBulkMessageHandler creates a new BulkMessageHandler |
| 29 | +func NewBulkMessageHandler( |
| 30 | + logger telemetry.Logger, |
| 31 | + tracer telemetry.Tracer, |
| 32 | + validator *validators.BulkMessageHandlerValidator, |
| 33 | + billingService *services.BillingService, |
| 34 | + messageService *services.MessageService, |
| 35 | +) (h *BulkMessageHandler) { |
| 36 | + return &BulkMessageHandler{ |
| 37 | + logger: logger.WithService(fmt.Sprintf("%T", h)), |
| 38 | + tracer: tracer, |
| 39 | + validator: validator, |
| 40 | + messageService: messageService, |
| 41 | + billingService: billingService, |
| 42 | + } |
| 43 | +} |
| 44 | + |
| 45 | +// RegisterRoutes registers the routes for the MessageHandler |
| 46 | +func (h *BulkMessageHandler) RegisterRoutes(router fiber.Router) { |
| 47 | + router.Post("/bulk-messages", h.Store) |
| 48 | +} |
| 49 | + |
| 50 | +// Store sends bulk SMS messages from a CSV file. |
| 51 | +// @Summary Store bulk SMS file |
| 52 | +// @Description Sends bulk SMS messages to multiple users from a CSV file. |
| 53 | +// @Security ApiKeyAuth |
| 54 | +// @Tags BulkSMS |
| 55 | +// @Accept json |
| 56 | +// @Produce json |
| 57 | +// @Success 202 {object} responses.NoContent |
| 58 | +// @Failure 400 {object} responses.BadRequest |
| 59 | +// @Failure 401 {object} responses.Unauthorized |
| 60 | +// @Failure 422 {object} responses.UnprocessableEntity |
| 61 | +// @Failure 500 {object} responses.InternalServerError |
| 62 | +// @Router /bulk-messages [post] |
| 63 | +func (h *BulkMessageHandler) Store(c *fiber.Ctx) error { |
| 64 | + ctx, span, ctxLogger := h.tracer.StartFromFiberCtxWithLogger(c, h.logger) |
| 65 | + defer span.End() |
| 66 | + |
| 67 | + file, err := c.FormFile("document") |
| 68 | + if err != nil { |
| 69 | + msg := fmt.Sprintf("cannot fetch file with name [%s] from request", "document") |
| 70 | + ctxLogger.Warn(stacktrace.Propagate(err, msg)) |
| 71 | + return h.responseBadRequest(c, err) |
| 72 | + } |
| 73 | + |
| 74 | + messages, validationErrors := h.validator.ValidateStore(ctx, h.userIDFomContext(c), file) |
| 75 | + if len(validationErrors) != 0 { |
| 76 | + msg := fmt.Sprintf("validation errors [%s], while sending bulk sms from CSV file [%s] for [%s]", spew.Sdump(validationErrors), file.Filename, h.userIDFomContext(c)) |
| 77 | + ctxLogger.Warn(stacktrace.NewError(msg)) |
| 78 | + return h.responseUnprocessableEntity(c, validationErrors, "validation errors while sending bulk SMS") |
| 79 | + } |
| 80 | + |
| 81 | + if msg := h.billingService.IsEntitledWithCount(ctx, h.userIDFomContext(c), uint(len(messages))); msg != nil { |
| 82 | + ctxLogger.Warn(stacktrace.NewError(fmt.Sprintf("user with ID [%s] is not entitled to send [%d] messages", h.userIDFomContext(c), len(messages)))) |
| 83 | + return h.responsePaymentRequired(c, *msg) |
| 84 | + } |
| 85 | + |
| 86 | + requestID := uuid.New() |
| 87 | + wg := sync.WaitGroup{} |
| 88 | + for _, message := range messages { |
| 89 | + wg.Add(1) |
| 90 | + go func(message *requests.BulkMessage) { |
| 91 | + _, err = h.messageService.SendMessage( |
| 92 | + ctx, |
| 93 | + message.ToMessageSendParams(h.userIDFomContext(c), requestID, c.OriginalURL()), |
| 94 | + ) |
| 95 | + |
| 96 | + if err != nil { |
| 97 | + msg := fmt.Sprintf("cannot send message with paylod [%s]", c.Body()) |
| 98 | + ctxLogger.Error(stacktrace.Propagate(err, msg)) |
| 99 | + } |
| 100 | + wg.Done() |
| 101 | + }(message) |
| 102 | + } |
| 103 | + |
| 104 | + wg.Wait() |
| 105 | + return h.responseAccepted(c, fmt.Sprintf("Added [%d] messages added to queue", len(messages))) |
| 106 | +} |
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