chore(wireguard): Improvements

handlers/wireguard/analyzer.go

@@ -53,29 +53,18 @@ func (p wireguardParser) analyzeOnlyOneInterfaceSectionSpecified() []protocol.Di
 	diagnostics := []protocol.Diagnostic{}
 	alreadyFound := false
 
-	for _, section := range p.Sections {
-		if *section.Name == "Interface" {
+	for _, section := range p.getSectionsByName("Interface") {
 		if alreadyFound {
 			severity := protocol.DiagnosticSeverityError
 			diagnostics = append(diagnostics, protocol.Diagnostic{
 				Message:  "Only one [Interface] section is allowed",
 				Severity: &severity,
-					Range: protocol.Range{
-						Start: protocol.Position{
-							Line:      section.StartLine,
-							Character: 0,
-						},
-						End: protocol.Position{
-							Line:      section.StartLine,
-							Character: 99999999,
-						},
-					},
+				Range:    section.getHeaderLineRange(),
 			})
 		}
 
 		alreadyFound = true
 	}
-	}
 
 	return diagnostics
 }
@@ -116,30 +105,17 @@ func (p wireguardParser) analyzeDNSContainsFallback() []protocol.Diagnostic {
 func (p wireguardParser) analyzeKeepAliveIsSet() []protocol.Diagnostic {
 	diagnostics := make([]protocol.Diagnostic, 0)
 
-	for _, section := range p.Sections {
-		if section.Name != nil && *section.Name == "Peer" {
+	for _, section := range p.getSectionsByName("Peer") {
 		// If an endpoint is set, then we should only check for the keepalive property
-			if section.fetchFirstProperty("Endpoint") != nil {
-				if section.fetchFirstProperty("PersistentKeepalive") == nil {
+		if section.existsProperty("Endpoint") && !section.existsProperty("PersistentKeepalive") {
 			severity := protocol.DiagnosticSeverityHint
 			diagnostics = append(diagnostics, protocol.Diagnostic{
 				Message:  "PersistentKeepalive is not set. It is recommended to set this property, as it helps to maintain the connection when users are behind NAT",
 				Severity: &severity,
-						Range: protocol.Range{
-							Start: protocol.Position{
-								Line:      section.StartLine,
-								Character: 0,
-							},
-							End: protocol.Position{
-								Line:      section.StartLine,
-								Character: 99999999,
-							},
-						},
+				Range:    section.getRange(),
 			})
 		}
 	}
-		}
-	}
 
 	return diagnostics
 }
@@ -161,36 +137,27 @@ func (p wireguardParser) checkIfValuesAreValid() []protocol.Diagnostic {
 	return diagnostics
 }
 
-func (p wireguardSection) analyzeSection() []protocol.Diagnostic {
+func (s wireguardSection) analyzeSection() []protocol.Diagnostic {
 	diagnostics := []protocol.Diagnostic{}
 
-	if p.Name == nil {
+	if s.Name == nil {
 		// No section name
 		severity := protocol.DiagnosticSeverityError
 		diagnostics = append(diagnostics, protocol.Diagnostic{
 			Message:  "This section is missing a name",
 			Severity: &severity,
-			Range:    p.getRange(),
+			Range:    s.getRange(),
 		})
 		return diagnostics
 	}
 
-	if _, found := optionsHeaderMap[*p.Name]; !found {
+	if _, found := optionsHeaderMap[*s.Name]; !found {
 		// Unknown section
 		severity := protocol.DiagnosticSeverityError
 		diagnostics = append(diagnostics, protocol.Diagnostic{
-			Message:  fmt.Sprintf("Unknown section '%s'. It must be one of: [Interface], [Peer]", *p.Name),
+			Message:  fmt.Sprintf("Unknown section '%s'. It must be one of: [Interface], [Peer]", *s.Name),
 			Severity: &severity,
-			Range: protocol.Range{
-				Start: protocol.Position{
-					Line:      p.StartLine,
-					Character: 0,
-				},
-				End: protocol.Position{
-					Line:      p.StartLine,
-					Character: 99999999,
-				},
-			},
+			Range:    s.getHeaderLineRange(),
 		})
 
 		return diagnostics
@@ -238,16 +205,7 @@ func (p wireguardProperty) analyzeProperty(
 			{
 				Message:  "Property is missing a value",
 				Severity: &severity,
-				Range: protocol.Range{
-					Start: protocol.Position{
-						Line:      propertyLine,
-						Character: 0,
-					},
-					End: protocol.Position{
-						Line:      propertyLine,
-						Character: 99999999,
-					},
-				},
+				Range:    p.getLineRange(propertyLine),
 			},
 		}
 	}

handlers/wireguard/documentation-fields.go

@@ -46,6 +46,7 @@ You can also specify multiple subnets or IPv6 subnets like so:
 		Value: docvalues.IPAddressValue{
 			AllowIPv4:  true,
 			AllowIPv6:  true,
+			AllowRange: true,
 		},
 	},
 	"ListenPort": {

handlers/wireguard/fetch-code-actions.go

@@ -10,7 +10,7 @@ func getKeepaliveCodeActions(
 
 	for index, section := range parser.Sections {
 		if section.StartLine >= line && line <= section.EndLine && section.Name != nil && *section.Name == "Peer" {
-			if section.fetchFirstProperty("Endpoint") != nil && section.fetchFirstProperty("PersistentKeepalive") == nil {
+			if section.existsProperty("Endpoint") && !section.existsProperty("PersistentKeepalive") {
 				commandID := "wireguard." + codeActionAddKeepalive
 				command := protocol.Command{
 					Title:   "Add PersistentKeepalive",

handlers/wireguard/wg-parser.go

@@ -343,3 +343,15 @@ func (p *wireguardParser) getPropertyByLine(line uint32) (*wireguardSection, *wi
 
 	return section, property
 }
+
+func (p *wireguardParser) getSectionsByName(name string) []*wireguardSection {
+	var sections []*wireguardSection
+
+	for _, section := range p.Sections {
+		if section.Name != nil && *section.Name == name {
+			sections = append(sections, section)
+		}
+	}
+
+	return sections
+}

handlers/wireguard/wg-property.go

@@ -5,6 +5,8 @@ import (
 	"config-lsp/utils"
 	"regexp"
 	"strings"
+
+	protocol "github.com/tliron/glsp/protocol_3_16"
 )
 
 var linePattern = regexp.MustCompile(`^\s*(?P<key>.+?)\s*(?P<separator>=)\s*(?P<value>\S.*?)?\s*(?:(?:;|#).*)?\s*$`)
@@ -37,6 +39,19 @@ func (p wireguardProperty) String() string {
 	return p.Key.Name + "=" + p.Value.Value
 }
 
+func (p wireguardProperty) getLineRange(line uint32) protocol.Range {
+	return protocol.Range{
+		Start: protocol.Position{
+			Line:      line,
+			Character: p.Key.Location.Start,
+		},
+		End: protocol.Position{
+			Line:      line,
+			Character: p.Key.Location.End,
+		},
+	}
+}
+
 func createWireguardProperty(line string) (*wireguardProperty, error) {
 	if !strings.Contains(line, "=") {
 		indexes := utils.GetTrimIndex(line)

handlers/wireguard/wg-section.go

@@ -37,6 +37,19 @@ type wireguardSection struct {
 	Properties wireguardProperties
 }
 
+func (s wireguardSection) getHeaderLineRange() protocol.Range {
+	return protocol.Range{
+		Start: protocol.Position{
+			Line:      s.StartLine,
+			Character: 0,
+		},
+		End: protocol.Position{
+			Line:      s.StartLine,
+			Character: 99999999,
+		},
+	}
+}
+
 func (s wireguardSection) getRange() protocol.Range {
 	return protocol.Range{
 		Start: protocol.Position{
@@ -62,14 +75,20 @@ func (s wireguardSection) String() string {
 	return fmt.Sprintf("[%s]; %d-%d: %v", name, s.StartLine, s.EndLine, s.Properties)
 }
 
-func (s *wireguardSection) fetchFirstProperty(name string) *wireguardProperty {
-	for _, property := range s.Properties {
+func (s *wireguardSection) fetchFirstProperty(name string) (*uint32, *wireguardProperty) {
+	for line, property := range s.Properties {
 		if property.Key.Name == name {
-			return &property
+			return &line, &property
 		}
 	}
 
-	return nil
+	return nil, nil
+}
+
+func (s *wireguardSection) existsProperty(name string) bool {
+	_, property := s.fetchFirstProperty(name)
+
+	return property != nil
 }
 
 func (s *wireguardSection) findProperty(lineNumber uint32) (*wireguardProperty, error) {