From bbaea6278886d76fc43a0325c9d9459844b015dd Mon Sep 17 00:00:00 2001
From: windyboy <windyboy@gmail.com>
Date: Tue, 6 Aug 2024 22:28:46 +0800
Subject: [PATCH] refactor: Update parseWaypoints function to return error in
 schedule_parser_test.go

---
 internal/parsers/aviation_parser.go      |  23 +-
 internal/parsers/constants.go            |  60 +++++
 internal/parsers/pattern.go              |  45 +---
 internal/parsers/schedule_parser.go      | 276 ++++++++++++++++++-----
 internal/parsers/schedule_parser_test.go |   6 +-
 5 files changed, 293 insertions(+), 117 deletions(-)
 create mode 100644 internal/parsers/constants.go

diff --git a/internal/parsers/aviation_parser.go b/internal/parsers/aviation_parser.go
index e71e119..e964336 100644
--- a/internal/parsers/aviation_parser.go
+++ b/internal/parsers/aviation_parser.go
@@ -15,9 +15,9 @@ const (
 	EndHeaderMarker      = "."
 	BeginPartMarker      = "BEGIN PART"
 
-	Category             = "category"
-	CategoryArrival      = "ARR"
-	FlightNumber         = "number"
+	Category        = "category"
+	CategoryArrival = "ARR"
+	// FlightNumber         = "number"
 	SSR                  = "ssr"
 	DepartureCode        = "dep"
 	DepartureTime        = "dep_time"
@@ -42,7 +42,7 @@ const (
 	Route                = "route"
 	EstimatedTime        = "estt"
 	AlternateAirport     = "alter"
-	Register             = "reg"
+	// Register             = "reg"
 	PBN                  = "pbn"
 	NavigationEquipment  = "nav"
 	EstimatedElapsedTime = "eet"
@@ -50,22 +50,11 @@ const (
 	PerformanceCategory  = "per"
 	RerouteInformation   = "rif"
 	Remarks              = "remark"
-	Index                = "idx"
+	// Index                = "idx"
 )
 
 var (
-	categoryRegex      = regexp.MustCompile(`\((?P<category>[A-Z]+)-`)
-	emptyLineRemove    = regexp.MustCompile(`(?m)^\s*$`)
-	bodyOnly           = regexp.MustCompile(`(.|\n)?(ZCZC(.|\n)*)NNNN(.|\n)?$`)
-	originator         = regexp.MustCompile(`(?P<originatorDateTime>[0-9]+)\s(?P<originator>[A-Z]+)`)
-	navPattern         = regexp.MustCompile(`(?m)NAV\/(?P<nav>.*)$`)
-	remarkPattern      = regexp.MustCompile(`(?s)RMK\/(?P<remark>.*)`)
-	selPattern         = regexp.MustCompile(`(?m)SEL\/(?P<sel>\w+)`)
-	pbnPattern         = regexp.MustCompile(`(?m)PBN\/(?P<pbn>[A-Z0-9]+)`)
-	eetPattern         = regexp.MustCompile(`(?s)(-?EET\/(?P<eet>(?:[A-Z]{4}\d{4}\s*)+))`)
-	performancePattern = regexp.MustCompile(`(?s)-?PER\/(?P<per>\w)`)
-	reroutePattern     = regexp.MustCompile(`(?m)RIF\/(?P<rif>.*)[A-Z]{3}\/`)
-	otherPatterns      = []*regexp.Regexp{navPattern, remarkPattern, selPattern, pbnPattern, eetPattern, performancePattern, reroutePattern}
+	otherPatterns = []*regexp.Regexp{navPattern, remarkPattern, selPattern, pbnPattern, eetPattern, performancePattern, reroutePattern}
 )
 
 type BodyParser struct {
diff --git a/internal/parsers/constants.go b/internal/parsers/constants.go
new file mode 100644
index 0000000..4030e5c
--- /dev/null
+++ b/internal/parsers/constants.go
@@ -0,0 +1,60 @@
+package parsers
+
+import "regexp"
+
+// String constants
+const (
+	CANCELLED    = "CNL"
+	AirportCode  = "airport"
+	Date         = "date"
+	Task         = "task"
+	Index        = "idx"
+	FlightNumber = "number"
+	Register     = "reg"
+)
+
+// Regular expression patterns
+const (
+	AllDigitsPattern    = `^(?P<dep_time>\d+)$`
+	IndexPattern        = `^(?P<idx>\(?L?[0-9]+\)?:?\.?)$`
+	DatePattern         = `^(?P<date>\d{2}\w{3})$`
+	TaskPattern         = `(?P<task>[A-Z]\/[A-Z])$`
+	WaypointPattern     = `^(SI:)?(?P<arr_time>\d{4}(\(\d{2}[A-Z]{3}\))?)?\/?(?P<airport>[A-Z]{3})\/?(?P<dep_time>\d{4}(\(\d{2}[A-Z]{3}\))?)?$`
+	FlightNumberPattern = `^(?P<number>[0-9A-Z][0-9A-Z]\d{3,5}(\/\d+)*)$`
+	RegisterPattern     = `^(?P<reg>B\d{4})$`
+
+	ArrPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>[A-Z0-9]+)(\/?(?P<ssr>[A-Z0-9]+))?-(?P<dep>[A-Z]{4})-(?P<arr>[A-Z]{4})(?P<arr_time>\d{4})\)$`
+	DepPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>[A-Z0-9]+)(\/(?P<ssr>[A-Z0-9]+))?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})-(?P<arr>[A-Z]{4})\)$`
+	FplPatternString = `\((?P<category>[A-Z]{3})-(?P<number>[A-Z]+\d+)-(?P<indicator>[A-Z]{2})\n-(?P<aircraft>[A-Z]+\d+\/?[A-Z]?)\n?-(?P<surve>.*)\n?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})\n?-(?P<speed>[A-Z]+\d+)(?P<level>[A-Z0-9]+)\s+(?P<route>(.|\n)+)\n-(?P<dest>[A-Z]{4})(?P<estt>\d{4})\s?(?P<alter>(\s[A-Z]{4})+)\n?-([A-Z]{3}\/(?:[A-Z]{4}\d{4}\s?)+)?(?P<other>(?m)[A-Z]{3}\/(.|\n)*)\)$`
+	CnlPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})?-?(?<arr>[A-Z]{4})\)$`
+	DlaPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})?-?(?<arr>[A-Z]{4})(?<arr_time>\d{4})?\)$`
+)
+
+// Compiled regular expressions
+var (
+	AllDigitsExpression    = regexp.MustCompile(AllDigitsPattern)
+	IndexExpression        = regexp.MustCompile(IndexPattern)
+	TaskExpression         = regexp.MustCompile(TaskPattern)
+	DateExpression         = regexp.MustCompile(DatePattern)
+	WaypointExpression     = regexp.MustCompile(WaypointPattern)
+	FlightNumberExpression = regexp.MustCompile(FlightNumberPattern)
+	RegisterExpression     = regexp.MustCompile(RegisterPattern)
+	ArrPatternExpression   = regexp.MustCompile(ArrPatternString)
+	DepPatternExpression   = regexp.MustCompile(DepPatternString)
+	FplPatternExpression   = regexp.MustCompile(FplPatternString)
+	CnlPatternExpression   = regexp.MustCompile(CnlPatternString)
+	DlaPatternExpression   = regexp.MustCompile(DlaPatternString)
+	BodyTypePattern        = regexp.MustCompile(`^\(([A-Z]{3})(.*\n?)+\)$`)
+
+	categoryRegex      = regexp.MustCompile(`\((?P<category>[A-Z]+)-`)
+	emptyLineRemove    = regexp.MustCompile(`(?m)^\s*$`)
+	bodyOnly           = regexp.MustCompile(`(.|\n)?(ZCZC(.|\n)*)NNNN(.|\n)?$`)
+	originator         = regexp.MustCompile(`(?P<originatorDateTime>[0-9]+)\s(?P<originator>[A-Z]+)`)
+	navPattern         = regexp.MustCompile(`(?m)NAV\/(?P<nav>.*)$`)
+	remarkPattern      = regexp.MustCompile(`(?s)RMK\/(?P<remark>.*)`)
+	selPattern         = regexp.MustCompile(`(?m)SEL\/(?P<sel>\w+)`)
+	pbnPattern         = regexp.MustCompile(`(?m)PBN\/(?P<pbn>[A-Z0-9]+)`)
+	eetPattern         = regexp.MustCompile(`(?s)(-?EET\/(?P<eet>(?:[A-Z]{4}\d{4}\s*)+))`)
+	performancePattern = regexp.MustCompile(`(?s)-?PER\/(?P<per>\w)`)
+	reroutePattern     = regexp.MustCompile(`(?m)RIF\/(?P<rif>.*)[A-Z]{3}\/`)
+)
diff --git a/internal/parsers/pattern.go b/internal/parsers/pattern.go
index 288ac93..d132278 100644
--- a/internal/parsers/pattern.go
+++ b/internal/parsers/pattern.go
@@ -24,49 +24,10 @@ type LineParser struct {
 	Fields        map[int]string
 }
 
-// Constants for specific values.
-const (
-	CANCELLED   = "CNL"
-	AirportCode = "airport"
-	Date        = "date"
-	Task        = "task"
-	// Index       = "idx"
-)
-
-// Regular expression patterns.
-const (
-	AllDigitsPattern    = `^(?P<dep_time>\d+)$`
-	IndexPattern        = `^(?P<idx>\(?L?[0-9]+\)?:?\.?)$`
-	DatePattern         = `^(?P<date>\d{2}\w{3})$`
-	TaskPattern         = `(?P<task>[A-Z]\/[A-Z])$`
-	WaypointPattern     = `^(SI:)?(?P<arr_time>\d{4}(\(\d{2}[A-Z]{3}\))?)?\/?(?P<airport>[A-Z]{3})\/?(?P<dep_time>\d{4}(\(\d{2}[A-Z]{3}\))?)?$`
-	FlightNumberPattern = `^(?P<number>[0-9A-Z][0-9A-Z]\d{3,5}(\/\d+)*)$`
-	RegisterPattern     = `^(?P<reg>B\d{4})$`
-	ArrPatternString    = `^\((?P<category>[A-Z]{3})-(?P<number>[A-Z0-9]+)(\/?(?P<ssr>[A-Z0-9]+))?-(?P<dep>[A-Z]{4})-(?P<arr>[A-Z]{4})(?P<arr_time>\d{4})\)$`
-	DepPatternString    = `^\((?P<category>[A-Z]{3})-(?P<number>[A-Z0-9]+)(\/(?P<ssr>[A-Z0-9]+))?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})-(?P<arr>[A-Z]{4})\)$`
-	FplPatternString    = `\((?P<category>[A-Z]{3})-(?P<number>[A-Z]+\d+)-(?P<indicator>[A-Z]{2})\n-(?P<aircraft>[A-Z]+\d+\/?[A-Z]?)\n?-(?P<surve>.*)\n?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})\n?-(?P<speed>[A-Z]+\d+)(?P<level>[A-Z0-9]+)\s+(?P<route>(.|\n)+)\n-(?P<dest>[A-Z]{4})(?P<estt>\d{4})\s?(?P<alter>(\s[A-Z]{4})+)\n?-([A-Z]{3}\/(?:[A-Z]{4}\d{4}\s?)+)?(?P<other>(?m)[A-Z]{3}\/(.|\n)*)\)$`
-	CnlPatternString    = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})?-?(?<arr>[A-Z]{4})\)$`
-	DlaPatternString    = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})?-?(?<arr>[A-Z]{4})(?<arr_time>\d{4})?\)$`
-)
-
 var (
-	// Pre-compiled regular expressions.
-	AllDigitsExpression    = regexp.MustCompile(AllDigitsPattern)
-	IndexExpression        = regexp.MustCompile(IndexPattern)
-	TaskExpression         = regexp.MustCompile(TaskPattern)
-	DateExpression         = regexp.MustCompile(DatePattern)
-	WaypointExpression     = regexp.MustCompile(WaypointPattern)
-	FlightNumberExpression = regexp.MustCompile(FlightNumberPattern)
-	RegisterExpression     = regexp.MustCompile(RegisterPattern)
-	ArrPatternExpression   = regexp.MustCompile(ArrPatternString)
-	DepPatternExpression   = regexp.MustCompile(DepPatternString)
-	FplPatternExpression   = regexp.MustCompile(FplPatternString)
-	CnlPatternExpression   = regexp.MustCompile(CnlPatternString)
-	DlaPatternExpression   = regexp.MustCompile(DlaPatternString)
-	BodyTypePattern        = regexp.MustCompile(`^\(([A-Z]{3})(.*\n?)+\)$`)
-	bodyPatterns           = map[string]BodyConfig{}
-	parserMap              = map[string]*regexp.Regexp{}
-	parserDef              = &[]LineParser{}
+	bodyPatterns = map[string]BodyConfig{}
+	parserMap    = map[string]*regexp.Regexp{}
+	parserDef    = &[]LineParser{}
 )
 
 func init() {
diff --git a/internal/parsers/schedule_parser.go b/internal/parsers/schedule_parser.go
index 834678f..bfa785f 100644
--- a/internal/parsers/schedule_parser.go
+++ b/internal/parsers/schedule_parser.go
@@ -3,6 +3,7 @@ package parsers
 import (
 	"caatsm/internal/domain"
 	"caatsm/pkg/utils"
+	"errors"
 
 	"strings"
 )
@@ -87,7 +88,7 @@ func ParseWithDef(line string, parserDef *LineParser) *domain.ScheduleLine {
 		}
 	}
 	if len(words) > parserDef.WaypointStart {
-		flightSchedule.Waypoints = parseWaypoints(words[parserDef.WaypointStart:])
+		flightSchedule.Waypoints, _ = parseWaypoints(words[parserDef.WaypointStart:])
 	} else {
 		log.Warn("No waypoints found")
 		flightSchedule.Comments = "No waypoints found"
@@ -96,81 +97,244 @@ func ParseWithDef(line string, parserDef *LineParser) *domain.ScheduleLine {
 	return flightSchedule
 }
 
-func ParseLine(line string) *domain.ScheduleLine {
+// func ParseLine(line string) *domain.ScheduleLine {
+// 	log := utils.GetSugaredLogger()
+// 	cleanLine := strings.TrimSpace(line)
+// 	words := strings.Split(cleanLine, " ")
+// 	var flightSchedule = &domain.ScheduleLine{
+// 		Reference: line,
+// 	}
+// 	var data map[string]string
+
+// 	if indexData := extract(words[0], IndexExpression); indexData != nil {
+// 		flightSchedule.Index = indexData[Index]
+// 		words = words[1:]
+// 	}
+
+// 	// Define the parsing strategy
+// 	parseStrategy := []string{
+// 		Task,
+// 		Date,
+// 		FlightNumber,
+// 		Register,
+// 	}
+
+// 	// Track parsed fields to avoid re-parsing
+// 	parsed := make(map[string]bool)
+// 	var maxParsed int
+
+// 	// Parse each word in the line
+// 	for i, word := range words {
+// 		// Check if all fields have been parsed
+// 		for _, name := range parseStrategy {
+// 			// Skip if already parsed
+// 			if parsed[name] {
+// 				continue
+// 			}
+// 			// Parse the word
+// 			if data = extract(word, parserMap[name]); data != nil {
+// 				// Update the flight schedule
+// 				switch name {
+// 				case Task:
+// 					flightSchedule.Task = data[Task]
+// 					parsed[Task] = true
+// 					maxParsed = i
+// 				case Date:
+// 					flightSchedule.Date = data[Date]
+// 					parsed[Date] = true
+// 					maxParsed = i
+// 				case FlightNumber:
+// 					flightSchedule.FlightNumber = getFlightNumbers(data[FlightNumber])
+// 					parsed[FlightNumber] = true
+// 					maxParsed = i
+// 				case Register:
+// 					flightSchedule.AircraftReg = data[Register]
+// 					parsed[Register] = true
+// 					maxParsed = i
+// 				}
+// 				break
+// 			}
+// 		}
+
+// 	}
+// 	if maxParsed+1 < len(words) {
+// 		flightSchedule.Waypoints = parseWaypoints(words[maxParsed+1:])
+// 	} else {
+// 		log.Warn("No waypoints found")
+// 		flightSchedule.Comments = "No waypoints found"
+// 	}
+
+//		return flightSchedule
+//	}
+// func ParseLine(line string) *domain.ScheduleLine {
+// 	log := utils.GetSugaredLogger()
+// 	cleanLine := strings.TrimSpace(line)
+// 	words := strings.Split(cleanLine, " ")
+// 	flightSchedule := &domain.ScheduleLine{Reference: line}
+
+// 	if indexData := extract(words[0], IndexExpression); indexData != nil {
+// 		flightSchedule.Index = indexData[Index]
+// 		words = words[1:]
+// 	}
+
+// 	parseStrategy := []string{Task, Date, FlightNumber, Register}
+// 	_, maxParsed := parseFields(words, parseStrategy, flightSchedule)
+
+// 	if maxParsed+1 < len(words) {
+// 		flightSchedule.Waypoints = parseWaypoints(words[maxParsed+1:])
+// 	} else {
+// 		log.Warn("No waypoints found")
+// 		flightSchedule.Comments = "No waypoints found"
+// 	}
+// 	return flightSchedule
+// }
+
+// func parseFields(words []string, parseStrategy []string, flightSchedule *domain.ScheduleLine) (map[string]bool, int) {
+// 	parsed := make(map[string]bool)
+// 	var maxParsed int
+
+// 	for i, word := range words {
+// 		for _, name := range parseStrategy {
+// 			if parsed[name] {
+// 				continue
+// 			}
+// 			if data := extract(word, parserMap[name]); data != nil {
+// 				updateFlightSchedule(flightSchedule, name, data)
+// 				parsed[name] = true
+// 				maxParsed = i
+// 				break
+// 			}
+// 		}
+// 	}
+// 	return parsed, maxParsed
+// }
+
+// func updateFlightSchedule(flightSchedule *domain.ScheduleLine, name string, data map[string]string) {
+// 	switch name {
+// 	case Task:
+// 		flightSchedule.Task = data[Task]
+// 	case Date:
+// 		flightSchedule.Date = data[Date]
+// 	case FlightNumber:
+// 		flightSchedule.FlightNumber = getFlightNumbers(data[FlightNumber])
+// 	case Register:
+// 		flightSchedule.AircraftReg = data[Register]
+// 	}
+// }
+
+// func parseWaypoints(points []string) []domain.WayPoint {
+// 	log := utils.GetSugaredLogger()
+// 	if len(points) == 0 {
+// 		log.Warn("No waypoints found")
+// 		return nil
+// 	}
+
+// 	//find first waypoint
+// 	var realWaypoints []string
+// 	for i, point := range points {
+// 		if extract(point, WaypointExpression) != nil {
+// 			realWaypoints = points[i:]
+// 			break
+// 		}
+// 	}
+// 	if len(realWaypoints) == 0 {
+// 		log.Warn("No waypoints found")
+// 		return nil
+// 	}
+// 	var waypoints []domain.WayPoint
+// 	for i, point := range realWaypoints {
+// 		// log.Debugf("Parsing waypoint: %s", point)
+// 		// check the next point for departure time
+// 		if digits := extract(point, AllDigitsExpression); i > 0 && digits != nil {
+// 			// if the previous point was a waypoint, update the departure time
+// 			if l := len(waypoints); l > 0 {
+// 				waypoints[l-1].DepartureTime = digits[DepartureTime]
+// 			}
+// 		} else if waypoint := ExtractWaypoint(point); waypoint != nil {
+// 			// log.Debugf("Waypoint: %v", waypoint)
+// 			waypoints = append(waypoints, *waypoint)
+// 		} else {
+// 			log.Warnf("Failed to parse waypoint: %s", point)
+// 		}
+// 	}
+// 	// log.Debugf("Found %d waypoints", len(waypoints))
+// 	return waypoints
+// }
+
+// ParseLine processes a single line of schedule data and returns a ScheduleLine object.
+func ParseLine(line string) (*domain.ScheduleLine, error) {
 	log := utils.GetSugaredLogger()
 	cleanLine := strings.TrimSpace(line)
 	words := strings.Split(cleanLine, " ")
-	var flightSchedule = &domain.ScheduleLine{
-		Reference: line,
-	}
-	var data map[string]string
+	flightSchedule := &domain.ScheduleLine{Reference: line}
 
 	if indexData := extract(words[0], IndexExpression); indexData != nil {
 		flightSchedule.Index = indexData[Index]
 		words = words[1:]
 	}
 
-	// Define the parsing strategy
-	parseStrategy := []string{
-		Task,
-		Date,
-		FlightNumber,
-		Register,
+	parseStrategy := []string{Task, Date, FlightNumber, Register}
+	_, maxParsed, err := parseFields(words, parseStrategy, flightSchedule)
+	if err != nil {
+		return nil, err
 	}
 
-	// Track parsed fields to avoid re-parsing
-	parsed := make(map[string]bool)
-	var maxParsed int
-
-	// Parse each word in the line
-	for i, word := range words {
-		// Check if all fields have been parsed
-		for _, name := range parseStrategy {
-			// Skip if already parsed
-			if parsed[name] {
-				continue
-			}
-			// Parse the word
-			if data = extract(word, parserMap[name]); data != nil {
-				// Update the flight schedule
-				switch name {
-				case Task:
-					flightSchedule.Task = data[Task]
-					parsed[Task] = true
-					maxParsed = i
-				case Date:
-					flightSchedule.Date = data[Date]
-					parsed[Date] = true
-					maxParsed = i
-				case FlightNumber:
-					flightSchedule.FlightNumber = getFlightNumbers(data[FlightNumber])
-					parsed[FlightNumber] = true
-					maxParsed = i
-				case Register:
-					flightSchedule.AircraftReg = data[Register]
-					parsed[Register] = true
-					maxParsed = i
-				}
-				break
-			}
-		}
-
-	}
+	// Check if there are any waypoints after the parsed fields
 	if maxParsed+1 < len(words) {
-		flightSchedule.Waypoints = parseWaypoints(words[maxParsed+1:])
+		waypoints, err := parseWaypoints(words[maxParsed+1:])
+		if err != nil {
+			return nil, err
+		}
+		flightSchedule.Waypoints = waypoints
 	} else {
 		log.Warn("No waypoints found")
 		flightSchedule.Comments = "No waypoints found"
 	}
 
-	return flightSchedule
+	return flightSchedule, nil
 }
 
-func parseWaypoints(points []string) []domain.WayPoint {
+// parseFields processes the fields based on the given strategy and updates the flight schedule.
+func parseFields(words []string, parseStrategy []string, flightSchedule *domain.ScheduleLine) (map[string]bool, int, error) {
+	parsed := make(map[string]bool)
+	var maxParsed int
+
+	for i, word := range words {
+		for _, name := range parseStrategy {
+			if parsed[name] {
+				continue
+			}
+			if data := extract(word, parserMap[name]); data != nil {
+				updateFlightSchedule(flightSchedule, name, data)
+				parsed[name] = true
+				maxParsed = i
+				break
+			}
+		}
+	}
+	return parsed, maxParsed, nil
+}
+
+// updateFlightSchedule updates the flight schedule based on the parsed data.
+func updateFlightSchedule(flightSchedule *domain.ScheduleLine, name string, data map[string]string) {
+	switch name {
+	case Task:
+		flightSchedule.Task = data[Task]
+	case Date:
+		flightSchedule.Date = data[Date]
+	case FlightNumber:
+		flightSchedule.FlightNumber = getFlightNumbers(data[FlightNumber])
+	case Register:
+		flightSchedule.AircraftReg = data[Register]
+	}
+}
+
+// parseWaypoints processes a slice of waypoint strings and returns a slice of WayPoint objects.
+func parseWaypoints(points []string) ([]domain.WayPoint, error) {
 	log := utils.GetSugaredLogger()
 	if len(points) == 0 {
 		log.Warn("No waypoints found")
-		return nil
+		return nil, errors.New("no waypoints")
 	}
 
 	//find first waypoint
@@ -183,7 +347,7 @@ func parseWaypoints(points []string) []domain.WayPoint {
 	}
 	if len(realWaypoints) == 0 {
 		log.Warn("No waypoints found")
-		return nil
+		return nil, errors.New("no waypoints")
 	}
 	var waypoints []domain.WayPoint
 	for i, point := range realWaypoints {
@@ -202,7 +366,7 @@ func parseWaypoints(points []string) []domain.WayPoint {
 		}
 	}
 	// log.Debugf("Found %d waypoints", len(waypoints))
-	return waypoints
+	return waypoints, nil
 }
 
 /**
diff --git a/internal/parsers/schedule_parser_test.go b/internal/parsers/schedule_parser_test.go
index b16766d..f8d9e45 100644
--- a/internal/parsers/schedule_parser_test.go
+++ b/internal/parsers/schedule_parser_test.go
@@ -178,7 +178,8 @@ var _ = Describe("Schedule Parser", func() {
 		Context("XIY/0415 TSN/0645 CGQ", func() {
 			It("should return 3 waypoints", func() {
 				points := strings.Split("XIY/0415 TSN/0645 CGQ", " ")
-				waypoints := parseWaypoints(points)
+				waypoints, err := parseWaypoints(points)
+				Expect(Expect(err).NotTo(HaveOccurred()))
 				Expect(waypoints).NotTo(BeNil())
 				Expect(waypoints).To(HaveLen(3))
 				Expect(waypoints[0].Airport).To(Equal("XIY"))
@@ -192,7 +193,8 @@ var _ = Describe("Schedule Parser", func() {
 		Context("ICN 0235 TSN", func() {
 			It("should return 2 waypoints", func() {
 				points := strings.Split("ICN 0235 TSN", " ")
-				waypoints := parseWaypoints(points)
+				waypoints, err := parseWaypoints(points)
+				Expect(Expect(err).NotTo(HaveOccurred()))
 				Expect(waypoints).NotTo(BeNil())
 				Expect(waypoints).To(HaveLen(2))
 				Expect(waypoints[0].Airport).To(Equal("ICN"))