From 6f0af301044a0d5e807539ce85a726d2c83cb4e4 Mon Sep 17 00:00:00 2001
From: yuri1969 <1969yuri1969@gmail.com>
Date: Tue, 2 Apr 2019 23:16:10 +0200
Subject: [PATCH] Fix for a part of #45

As mentioned by @Galiaf47, not having the main file in project root
causes validation errors.

* Changed the working directory to match the main Swagger file
* Refactored the validation and error reporting a bit
---
 src/language/server.ts | 128 ++++++++++++++++++-----------------------
 1 file changed, 56 insertions(+), 72 deletions(-)

diff --git a/src/language/server.ts b/src/language/server.ts
index 154f753..b1f7d2e 100644
--- a/src/language/server.ts
+++ b/src/language/server.ts
@@ -10,7 +10,8 @@ import {
 	DidChangeConfigurationNotification,
 	CompletionItem,
 	CompletionItemKind,
-	TextDocumentPositionParams
+	TextDocumentPositionParams,
+	Files
 } from 'vscode-languageserver';
 import * as SwaggerParser from 'swagger-parser';
 import * as YAML from 'js-yaml';
@@ -124,92 +125,75 @@ function getParsedContent(document: TextDocument){
 	return null;
 }
 
-async function validateTextDocument(textDocument: TextDocument): Promise<void> {
-	let swaggerObject = null;
-	try{
-		swaggerObject = getParsedContent(textDocument);
-	}
-	catch(ex){
-		let diagnostics: Diagnostic[] = [];
-		let diagnostic: Diagnostic = {
-			severity: DiagnosticSeverity.Warning,
-			code: 0,
-			message: ex.message,
-			range: {
-				start: {
-					line: 0,
-					character: 1
-				},
-				end: {
-					line: 0,
-					character: 1
-				}
+function sendErrorDiagnostic(error: any, textDocument: TextDocument, source: string){
+	let diagnostics: Diagnostic[] = [];
+	let diagnostic: Diagnostic = {
+		severity: DiagnosticSeverity.Warning,
+		code: 0,
+		message: error.message,
+		range: {
+			start: {
+				line: 0,
+				character: 1
 			},
-			source: "Swagger Viewer Parse"
+			end: {
+				line: 0,
+				character: 1
+			}
+		},
+		source: source
+	};
+
+	if (error.mark) {
+		diagnostic.range.start = diagnostic.range.end = {
+			line: error.mark.line,
+			character: error.mark.column
 		};
+	}
 
-		if (ex.mark) {
-			diagnostic.range.start = diagnostic.range.end = {
-				line: ex.mark.line,
-				character: ex.mark.column
-			};
-		}
+	diagnostics.push(diagnostic);
 
-		diagnostics.push(diagnostic);
+	connection.sendDiagnostics({
+		uri: textDocument.uri,
+		diagnostics
+	});
+}
 
+function validateSwagger(swagger: any, textDocument: TextDocument) {
+	SwaggerParser.validate(swagger)
+	.then(() => {
+		const diagnostics: Diagnostic[] = [];
 		connection.sendDiagnostics({
 			uri: textDocument.uri,
 			diagnostics
 		});
+	})
+	.catch(error => {
+		sendErrorDiagnostic(error, textDocument, "Swagger Viewer");
+	});
+}
 
-		return;
+function changeCurrentWorkDir(textDocument: TextDocument): void {
+	const documentPath = Files.uriToFilePath(textDocument.uri);
+	const documentDir = documentPath.substr(0, documentPath.lastIndexOf('/'));
+	// work dir == document base dir
+	process.chdir(documentDir);
+}
+
+async function validateTextDocument(textDocument: TextDocument): Promise<void> {
+	let swaggerObject = null;
+	try{
+		swaggerObject = getParsedContent(textDocument);
+	}
+	catch(ex){
+		sendErrorDiagnostic(ex, textDocument, "Swagger Viewer Parse");
 	}
 	
 	if(!swaggerObject) return;
 
-	SwaggerParser.validate(swaggerObject)
-		.then(api => {
-			let diagnostics: Diagnostic[] = [];
-			connection.sendDiagnostics({
-				uri: textDocument.uri,
-				diagnostics
-			});
-		})
-		.catch(err => {
-			let diagnostics: Diagnostic[] = [];
-			let diagnostic: Diagnostic = {
-				severity: DiagnosticSeverity.Warning,
-				code: 0,
-				message: err.message,
-				range: {
-					start: {
-						line: 0,
-						character: 1
-					},
-					end: {
-						line: 0,
-						character: 1
-					}
-				},
-				source: "Swagger Viewer"
-			};
-
-			if (err.mark) {
-				diagnostic.range.start = diagnostic.range.end = {
-					line: err.mark.line,
-					character: err.mark.column
-				};
-			}
-
-			diagnostics.push(diagnostic);
-
-			connection.sendDiagnostics({
-				uri: textDocument.uri,
-				diagnostics
-			});
-
-		})
+	changeCurrentWorkDir(textDocument);
 
+	validateSwagger(swaggerObject, textDocument);
 }
 
 connection.onDidChangeWatchedFiles(_change => {