refactor: Rename AFTN struct field from "Text" to "Body"

internal/domain/aviation.go

@@ -0,0 +1,28 @@
+package domain
+
+/*
+ZCZC TMQ1324 150631
+FF ZBTJZPZX
+150630 ZBACZQZX
+*/
+/*
+Start Indicator: ZCZC
+Message ID: TMQ1324
+Date-Time: 150631
+Priority Indicator: FF
+Primary Address: ZBTJZPZX
+Secondary Addresses: 150630 ZBACZQZX
+Originator and Originator Date-Time: Not present in this example but handled if present.
+*/
+// ParsedMessage holds the parsed data from an aviation message
+type ParsedMessage struct {
+	StartIndicator     string   // Start of the message indicator
+	MessageID          string   // Unique identifier for the message
+	DateTime           string   // Date and time the message was created
+	PriorityIndicator  string   // Priority level of the message
+	PrimaryAddress     string   // Primary recipient address
+	SecondaryAddresses []string // Additional recipient addresses
+	Originator         string   // Sender of the message
+	OriginatorDateTime string   // Date and time when the originator sent the message
+	BodyAndFooter      string
+}

internal/parsers/aviation_parser.go

@@ -0,0 +1,77 @@
+package parsers
+
+import (
+	"caatsm/internal/domain"
+	"strings"
+)
+
+// ParseHeader parses the header of the message and returns a ParsedMessage struct
+func ParseHeader(fullMessage string) domain.ParsedMessage {
+	var (
+		startIndicator     string
+		messageID          string
+		dateTime           string
+		priorityIndicator  string
+		primaryAddress     string
+		secondaryAddresses []string
+		originator         string
+		originatorDateTime string
+		bodyAndFooter      strings.Builder
+		headerEnded        bool
+	)
+
+	fullMessage = strings.TrimSpace(fullMessage)
+	lines := strings.Split(fullMessage, "\n")
+
+	for lineCounter, line := range lines {
+		switch lineCounter {
+		case 0:
+			if strings.HasPrefix(line, "ZCZC") {
+				parts := strings.Fields(line)
+				if len(parts) >= 3 {
+					startIndicator = parts[0]
+					messageID = parts[1]
+					dateTime = parts[2]
+				}
+			}
+		case 1:
+			parts := strings.Fields(line)
+			if len(parts) >= 2 {
+				priorityIndicator = parts[0]
+				primaryAddress = parts[1]
+			}
+		default:
+			if !headerEnded {
+				if strings.TrimSpace(line) == "." {
+					continue
+				} else if strings.HasPrefix(line, ".") {
+					originatorInfo := strings.Fields(line[1:])
+					if len(originatorInfo) >= 2 {
+						originator = originatorInfo[0]
+						originatorDateTime = originatorInfo[1]
+					}
+					headerEnded = true
+				} else if strings.HasPrefix(line, "BEGIN PART") || strings.HasPrefix(line, "(") {
+					headerEnded = true
+					bodyAndFooter.WriteString(line + "\n")
+				} else {
+					secondaryAddresses = append(secondaryAddresses, line)
+				}
+			} else {
+				bodyAndFooter.WriteString(line + "\n")
+			}
+		}
+	}
+
+	return domain.ParsedMessage{
+		StartIndicator:     startIndicator,
+		MessageID:          messageID,
+		DateTime:           dateTime,
+		PriorityIndicator:  priorityIndicator,
+		PrimaryAddress:     primaryAddress,
+		SecondaryAddresses: secondaryAddresses,
+		Originator:         originator,
+		OriginatorDateTime: originatorDateTime,
+		BodyAndFooter:      bodyAndFooter.String(),
+	}
+}

internal/parsers/aviation_parser_test.go

@@ -0,0 +1,112 @@
+package parsers
+
+import (
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Aviation Parser", func() {
+	Describe("ParseHeader", func() {
+		It("should parse the header correctly", func() {
+			message := `
+			ZCZC TAF6789 160530
+QU TSNZPCA
+.
+QU PEKUDCA TSNUOCA TSNZPCA TSNUFCA
+.TAF WSSS 160500Z 1606/1712 20010KT 9999 SCT018 
+ BECMG 1608/1610 24012KT 9999 SCT018 
+ TEMPO 1610/1612 4000 SHRA BKN012 
+ BECMG 1612/1614 18008KT 9999 SCT020
+
+BEGIN PART 02
+
+(FORECAST AMENDMENT
+VALID 1606/1700
+THUNDERSTORMS EXPECTED
+ALTERNATE ROUTES ADVISED)
+
+NNNN`
+			parsedHeader := ParseHeader(message)
+			Expect(parsedHeader.StartIndicator).To(Equal("ZCZC"))
+			Expect(parsedHeader.MessageID).To(Equal("TAF6789"))
+			Expect(parsedHeader.DateTime).To(Equal("160530"))
+			Expect(parsedHeader.PriorityIndicator).To(Equal("QU"))
+			Expect(parsedHeader.PrimaryAddress).To(Equal("TSNZPCA"))
+			Expect(parsedHeader.SecondaryAddresses).To(Equal([]string{"QU PEKUDCA TSNUOCA TSNZPCA TSNUFCA"}))
+
+		})
+
+		It("should parse the header correctly with originator information", func() {
+			message := `
+ZCZC NOTAM1122 171000
+QU TSNZPCA
+.
+QU PEKUDCA TSNUOCA TSNZPCA TSNUFCA
+.SELOZKE 170999
+
+BEGIN PART 01
+
+RUNWAY MAINTENANCE NOTICE.
+
+- MAINTENANCE MANAGER: JOHN DOE
+
+RUNWAY 09/27 WILL BE CLOSED FOR MAINTENANCE FROM 0800Z TO 1600Z.
+
+- AIRPORT OPERATIONS:       SIGN . . . . . . . . . .
+
+WE ACKNOWLEDGE THE RUNWAY CLOSURE.
+
+- CONTROL TOWER:
+
+                    SIGN . . . . . . . . . .
+
+BEGIN PART 02
+
+(ALERT MESSAGE - WEATHER WARNING
+VALID 1500Z - 1800Z
+SEVERE THUNDERSTORM FORECASTED
+ALL DEPARTURES/ARRIVALS EXPECTED TO BE DELAYED)
+
+NNNN`
+			parsedHeader := ParseHeader(message)
+			Expect(parsedHeader.StartIndicator).To(Equal("ZCZC"))
+			Expect(parsedHeader.MessageID).To(Equal("NOTAM1122"))
+			Expect(parsedHeader.DateTime).To(Equal("171000"))
+			Expect(parsedHeader.PriorityIndicator).To(Equal("QU"))
+			Expect(parsedHeader.PrimaryAddress).To(Equal("TSNZPCA"))
+			Expect(parsedHeader.SecondaryAddresses).To(Equal([]string{"QU PEKUDCA TSNUOCA TSNZPCA TSNUFCA"}))
+			Expect(parsedHeader.Originator).To(Equal("SELOZKE"))
+			Expect(parsedHeader.OriginatorDateTime).To(Equal("170999"))
+		})
+
+	})
+
+	Context("with NOTAM message", func() {
+		It("should parse the header correctly", func() {
+			message := `
+ZCZC NOTAM1234 230715
+GG EDDNZEZN
+.
+GG EDDNYNYX
+.BERLINTWR 230714
+
+Q) EDMM/QOATT/IV/BO/A/000/999/4814N01120E005
+A) EDDM
+B) 2307150600 C) 2307151800
+E) AERODROME CONTROL TOWER HOURS OF SERVICE
+    0600-1800 DUE TO MAINTENANCE
+NNNN`
+
+			parsedMessage := ParseHeader(message)
+			Expect(parsedMessage.StartIndicator).To(Equal("ZCZC"))
+			Expect(parsedMessage.MessageID).To(Equal("NOTAM1234"))
+			Expect(parsedMessage.DateTime).To(Equal("230715"))
+			Expect(parsedMessage.PriorityIndicator).To(Equal("GG"))
+			Expect(parsedMessage.PrimaryAddress).To(Equal("EDDNZEZN"))
+			Expect(parsedMessage.SecondaryAddresses).To(Equal([]string{"GG EDDNYNYX"}))
+			Expect(parsedMessage.Originator).To(Equal("BERLINTWR"))
+			Expect(parsedMessage.OriginatorDateTime).To(Equal("230714"))
+			Expect(parsedMessage.BodyAndFooter).To(ContainSubstring("Q) EDMM/QOATT/IV/BO/A/000/999/4814N01120E005\nA) EDDM\nB) 2307150600 C) 2307151800\nE) AERODROME CONTROL TOWER HOURS OF SERVICE\n    0600-1800 DUE TO MAINTENANCE\nNNNN"))
+		})
+	})
+})