🔖 Bump version to 0.2.0

main.go

@@ -14,12 +14,14 @@ import (
 )
 
 const (
-	RequestURL = "https://azal.az/book/api/flights/search/by-deeplink"
-	Version    = "0.1.0"
+	RequestURL     = "https://azal.az/book/api/flights/search/by-deeplink"
+	TelegramAPIURL = "https://api.telegram.org/bot%s/sendMessage"
+	Version        = "0.2.0"
 )
 
 var (
 	ErrorNoFlightsAvailable = fmt.Errorf("no flights available")
+	ErrorFlowInterrupted    = fmt.Errorf("flow interrupted")
 )
 
 var Colors = struct {
@@ -52,6 +54,67 @@ func Colored(color string, a ...any) string {
 
 type AvialableFlights map[string][]time.Time
 
+type TelegramRequest struct {
+	Client *http.Client
+	BotKey string
+	ChatID string
+}
+
+func (telegramRequest *TelegramRequest) sendTelegramMessage(message string) error {
+	url := fmt.Sprintf(TelegramAPIURL, telegramRequest.BotKey)
+
+	req, err := http.NewRequest("POST", url, nil)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	q := req.URL.Query()
+	q.Add("chat_id", telegramRequest.ChatID)
+	q.Add("text", message)
+	q.Add("parse_mode", "HTML")
+	req.URL.RawQuery = q.Encode()
+
+	resp, err := telegramRequest.Client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("error: telegram send message status code: %d", resp.StatusCode)
+	}
+	return nil
+}
+
+func (telegramRequest *TelegramRequest) sendTelegramFlightNotification(avialableFlights AvialableFlights) error {
+	message := "Azal Bot Flights\n\n"
+	for day, flights := range avialableFlights {
+		message += fmt.Sprintf("%s\n-----------\n", day)
+		for _, flight := range flights {
+			message += fmt.Sprintf("%s\n", flight.Format("15:04:05"))
+		}
+		message += "\n"
+	}
+	message = message[:len(message)-1]
+	return telegramRequest.sendTelegramMessage(message)
+}
+
+func (telegramRequest *TelegramRequest) sendTelegramStartNotification(botConfig *BotConfig) error {
+	return telegramRequest.sendTelegramMessage(
+		fmt.Sprintf(
+			"Azal Bot started\n\nFrom: %s\nTo: %s\nFirst Date: %s\nLast Date: %s\nRepetition Interval: %s",
+			botConfig.From,
+			botConfig.To,
+			botConfig.FirstDate.Format("2006-01-02T15:04:05"),
+			botConfig.LastDate.Format("2006-01-02T15:04:05"),
+			botConfig.RepetInterval.String(),
+		),
+	)
+}
+
+func (telegramRequest *TelegramRequest) sendTelegramErrorNotification(err error) error {
+	return telegramRequest.sendTelegramMessage(fmt.Sprintf("Azal Bot Error: %s", err.Error()))
+}
+
 type UserInput struct {
 	FirstDate      time.Time
 	LastDate       time.Time
@@ -89,7 +152,7 @@ func (responseTime *ResponseTime) UnmarshalJSON(b []byte) error {
 
 type SuccessResponse struct {
 	Warnings []any `json:"warnings"`
-	Search struct {
+	Search   struct {
 		OptionSets []struct {
 			Options []struct {
 				ID        string `json:"id"`
@@ -245,12 +308,14 @@ func handleErrorResponse(errorResponse *ErrorResponse) error {
 	switch errorResponse.Error.Code {
 	case "no.flights.available":
 		return ErrorNoFlightsAvailable
+	case "flow.interrupted.error":
+		return ErrorFlowInterrupted
 	default:
 		return fmt.Errorf("unknown error: %s", errorResponse.Error.Code)
 	}
 }
 
-func sendRequest(queryConf *QueryConfig, headerConf *HeaderConfig) (*SuccessResponse, error) {
+func sendRequest(client *http.Client, queryConf *QueryConfig, headerConf *HeaderConfig) (*SuccessResponse, error) {
 	req, err := http.NewRequest("GET", RequestURL, nil)
 	if err != nil {
 		return nil, err
@@ -259,7 +324,6 @@ func sendRequest(queryConf *QueryConfig, headerConf *HeaderConfig) (*SuccessResp
 	headerConf.setToRequest(req)
 	queryConf.setToRequest(req)
 
-	client := &http.Client{}
 	resp, err := client.Do(req)
 	if err != nil {
 		return nil, err
@@ -403,43 +467,7 @@ func getUserInput() *UserInput {
 	return userInput
 }
 
-func sendTelegramMessage(avialableFlights AvialableFlights, botKey string, chatID string) error {
-	url := fmt.Sprintf("https://api.telegram.org/bot%s/sendMessage", botKey)
-
-	req, err := http.NewRequest("POST", url, nil)
-	if err != nil {
-		return err
-	}
-	req.Header.Set("Content-Type", "application/json")
-
-	message := "Azal Bot\n\n"
-	for day, flights := range avialableFlights {
-		message += fmt.Sprintf("%s\n-----------\n", day)
-		for _, flight := range flights {
-			message += fmt.Sprintf("%s\n", flight.Format("15:04:05"))
-		}
-		message += "\n"
-	}
-	message = message[:len(message)-1]
-	q := req.URL.Query()
-	q.Add("chat_id", chatID)
-	q.Add("text", message)
-	q.Add("parse_mode", "HTML")
-	req.URL.RawQuery = q.Encode()
-
-	client := &http.Client{}
-	resp, err := client.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		return fmt.Errorf("telegram send message status code: %d", resp.StatusCode)
-	}
-	return nil
-}
-
-func startBot(botConfig *BotConfig, ifAvailable func(avialableFlights AvialableFlights) error) {
+func startBot(botConfig *BotConfig, ifAvailable func(avialableFlights AvialableFlights) error, ifError func(err error) error) {
 	queryConf := QueryConfig{
 		From: botConfig.From,
 		To:   botConfig.To,
@@ -448,17 +476,24 @@ func startBot(botConfig *BotConfig, ifAvailable func(avialableFlights AvialableF
 	headerConf := HeaderConfig{}
 	headerConf.setDefaults()
 
+	sendRequestClient := &http.Client{}
 	for {
 		avialableFlights := make(AvialableFlights)
 		for _, day := range botConfig.days {
 			queryConf.DepartureDate = day
-			data, err := sendRequest(&queryConf, &headerConf)
+			data, err := sendRequest(sendRequestClient, &queryConf, &headerConf)
 			if err != nil {
-				if err == ErrorNoFlightsAvailable {
+				switch err {
+				case ErrorNoFlightsAvailable:
 					log.Println(Colored(Colors.Yellow, "No flights available for ", day))
-					continue
+				case ErrorFlowInterrupted:
+					log.Println(Colored(Colors.Red, "The date entered has passed: ", day))
+					if err := ifError(fmt.Errorf("the date entered has passed: %s", day)); err != nil {
+						log.Println(Colored(Colors.Red, err.Error()))
+					}
+				default:
+					log.Println(Colored(Colors.Red, err.Error()))
 				}
-				log.Println(Colored(Colors.Red, err.Error()))
 				continue
 			}
 
@@ -499,14 +534,25 @@ func main() {
 	}
 
 	ifAvailableFunc := func(avialableFlights AvialableFlights) error { return nil }
+	ifErrorFunc := func(err error) error { return nil }
 	if userInput.TelegramBotKey != "" {
+		telegramRequest := &TelegramRequest{
+			Client: &http.Client{},
+			BotKey: userInput.TelegramBotKey,
+			ChatID: userInput.TelegramChatID,
+		}
+		if err := telegramRequest.sendTelegramStartNotification(botConfig); err != nil {
+			log.Println(Colored(Colors.Red, err.Error()))
+		}
 		ifAvailableFunc = func(avialableFlights AvialableFlights) error {
 			if len(avialableFlights) > 0 {
-				return sendTelegramMessage(
-					avialableFlights,
-					userInput.TelegramBotKey,
-					userInput.TelegramChatID,
-				)
+				return telegramRequest.sendTelegramFlightNotification(avialableFlights)
+			}
+			return nil
+		}
+		ifErrorFunc = func(err error) error {
+			if err != nil {
+				return telegramRequest.sendTelegramErrorNotification(err)
 			}
 			return nil
 		}
@@ -515,5 +561,6 @@ func main() {
 	startBot(
 		botConfig,
 		ifAvailableFunc,
+		ifErrorFunc,
 	)
 }