fix(server): Improve language detection

Author: Myzel394

server/root-handler/lsp/text-document-code-action.go

@@ -1,7 +1,6 @@
 package lsp
 
 import (
-	"config-lsp/common"
 	aliases "config-lsp/handlers/aliases/lsp"
 	bitcoinconf "config-lsp/handlers/bitcoin_conf/lsp"
 	hosts "config-lsp/handlers/hosts/lsp"
@@ -21,11 +20,7 @@ func TextDocumentCodeAction(context *glsp.Context, params *protocol.CodeActionPa
 	if document == nil {
 		actions := utils.FetchAddLanguageActions(params.TextDocument.URI)
 
-		if common.ServerOptions.NoUndetectableErrors {
-			return actions, nil
-		} else {
-			return actions, utils.LanguageUndetectableError{}
-		}
+		return actions, nil
 	}
 
 	switch *document.Language {

server/root-handler/shared/constants.go

@@ -6,7 +6,7 @@ const (
 	LanguageSSHConfig   SupportedLanguage = "ssh_config"
 	LanguageSSHDConfig  SupportedLanguage = "sshd_config"
 	LanguageFstab       SupportedLanguage = "fstab"
-	LanguageWireguard   SupportedLanguage = "languagewireguard"
+	LanguageWireguard   SupportedLanguage = "wireguard"
 	LanguageHosts       SupportedLanguage = "hosts"
 	LanguageAliases     SupportedLanguage = "aliases"
 	LanguageBitcoinConf SupportedLanguage = "bitcoin_conf"

server/root-handler/shared/singleton.go

@@ -1,11 +1,21 @@
 package shared
 
 import (
+	"config-lsp/common"
+
 	protocol "github.com/tliron/glsp/protocol_3_16"
 )
 
 type OpenedFile struct {
 	Language *SupportedLanguage
+
+	// Stores information when the language could not be determined
+	UnavailableInfo *UnavailableInfo
+}
+
+type UnavailableInfo struct {
+	// Position of `#?lsp.language`
+	OverwritePosition *common.LocationRange
 }
 
 var OpenedFiles = make(map[protocol.DocumentUri]OpenedFile)