/*---------------------------------------------------------
 * Copyright (C) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------*/

import vscode = require('vscode');
import TelemetryReporter from 'vscode-extension-telemetry';

export const extensionId: string = 'golang.go-nightly';
const extension = vscode.extensions.getExtension(extensionId);
const extensionVersion: string = extension ? extension.packageJSON.version : '';
const aiKey: string = '';  // Empty aiKey disables telemetry.

export function sendTelemetryEventForModulesUsage() {
	/* __GDPR__
		"modules" : {}
	*/
	sendTelemetryEvent('modules');
}

export function sendTelemetryEventForAddImportCmd(arg: { importPath: string; from: string }) {
	/* __GDPR__
		"addImportCmd" : {
			"from" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" }
		}
	*/
	sendTelemetryEvent('addImportCmd', { from: (arg && arg.from) || 'cmd' });
}

export function sendTelemetryEventForGopkgs(timeTaken: number) {
	/* __GDPR__
		"gopkgs" : {
			"tool" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"timeTaken": { "classification": "SystemMetaData", "purpose": "PerformanceAndHealth", "isMeasurement": true }
		}
	*/
	sendTelemetryEvent('gopkgs', {}, { timeTaken });
}

export function sendTelemetryEventForFormatting(formatTool: string, timeTaken: number) {
	/* __GDPR__
		"format" : {
			"tool" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"timeTaken": { "classification": "SystemMetaData", "purpose": "PerformanceAndHealth", "isMeasurement": true }
		}
	*/
	sendTelemetryEvent('format', { tool: formatTool }, { timeTaken });
}

export function sendTelemetryEventForDebugConfiguration(debugConfiguration: vscode.DebugConfiguration) {
	/* __GDPR__
		"debugConfiguration" : {
			"request" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"mode" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"useApiV<NUMBER>": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"apiVersion": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"stopOnEntry": { "classification": "SystemMetaData", "purpose": "FeatureInsight" }
		}
	*/
	sendTelemetryEvent('debugConfiguration', {
		request: debugConfiguration.request,
		mode: debugConfiguration.mode,
		useApiV1: debugConfiguration.useApiV1,
		apiVersion: debugConfiguration.apiVersion,
		stopOnEntry: debugConfiguration.stopOnEntry
	});
}

export function sendTelemetryEventForConfig(goConfig: vscode.WorkspaceConfiguration) {
	/* __GDPR__
		"goConfig" : {
			"buildOnSave" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"buildFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"buildTags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"formatTool": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"formatFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"generateTestsFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"lintOnSave": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"lintFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"lintTool": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"vetOnSave": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"vetFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"testOnSave": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"testFlags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"coverOnSave": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"coverOnTestPackage": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"coverageDecorator": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"coverageOptions": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"gopath": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"goroot": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"inferGopath": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"toolsGopath": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"gocodeAutoBuild": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"gocodePackageLookupMode": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"useCodeSnippetsOnFunctionSuggest": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"useCodeSnippetsOnFunctionSuggestWithoutType": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"autocompleteUnimportedPackages": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"docsTool": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"useLanguageServer": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"languageServerExperimentalFeatures": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"includeImports": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"addTags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"removeTags": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"editorContextMenuCommands": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"liveErrors": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"codeLens": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
			"alternateTools": { "classification": "CustomerContent", "purpose": "FeatureInsight" },
			"useGoProxyToCheckForToolUpdates": { "classification": "CustomerContent", "purpose": "FeatureInsight" }
		}
	*/
	sendTelemetryEvent('goConfig', {
		buildOnSave: goConfig['buildOnSave'] + '',
		buildFlags: goConfig['buildFlags'],
		buildTags: goConfig['buildTags'],
		formatOnSave: goConfig['formatOnSave'] + '',
		formatTool: goConfig['formatTool'],
		formatFlags: goConfig['formatFlags'],
		lintOnSave: goConfig['lintOnSave'] + '',
		lintFlags: goConfig['lintFlags'],
		lintTool: goConfig['lintTool'],
		generateTestsFlags: goConfig['generateTestsFlags'],
		vetOnSave: goConfig['vetOnSave'] + '',
		vetFlags: goConfig['vetFlags'],
		testOnSave: goConfig['testOnSave'] + '',
		testFlags: goConfig['testFlags'],
		coverOnSave: goConfig['coverOnSave'] + '',
		coverOnTestPackage: goConfig['coverOnTestPackage'] + '',
		coverageDecorator: goConfig['coverageDecorator'],
		coverageOptions: goConfig['coverageOptions'],
		gopath: goConfig['gopath'] ? 'set' : '',
		goroot: goConfig['goroot'] ? 'set' : '',
		inferGopath: goConfig['inferGopath'] + '',
		toolsGopath: goConfig['toolsGopath'] ? 'set' : '',
		gocodeAutoBuild: goConfig['gocodeAutoBuild'] + '',
		gocodePackageLookupMode: goConfig['gocodePackageLookupMode'] + '',
		useCodeSnippetsOnFunctionSuggest: goConfig['useCodeSnippetsOnFunctionSuggest'] + '',
		useCodeSnippetsOnFunctionSuggestWithoutType: goConfig['useCodeSnippetsOnFunctionSuggestWithoutType'] + '',
		autocompleteUnimportedPackages: goConfig['autocompleteUnimportedPackages'] + '',
		docsTool: goConfig['docsTool'],
		useLanguageServer: goConfig['useLanguageServer'] + '',
		languageServerExperimentalFeatures: JSON.stringify(goConfig['languageServerExperimentalFeatures']),
		includeImports: goConfig['gotoSymbol'] && goConfig['gotoSymbol']['includeImports'] + '',
		addTags: JSON.stringify(goConfig['addTags']),
		removeTags: JSON.stringify(goConfig['removeTags']),
		editorContextMenuCommands: JSON.stringify(goConfig['editorContextMenuCommands']),
		liveErrors: JSON.stringify(goConfig['liveErrors']),
		codeLens: JSON.stringify(goConfig['enableCodeLens']),
		alternateTools: JSON.stringify(goConfig['alternateTools']),
		useGoProxyToCheckForToolUpdates: goConfig['useGoProxyToCheckForToolUpdates'] + ''
	});
}

export function sendTelemetryEventForKillingProcess(msg: any, matches: any) {
	/* __GDPR__
		"errorKillingProcess" : {
			"message" : { "classification": "CallstackOrException", "purpose": "PerformanceAndHealth" },
			"stack": { "classification": "CallstackOrException", "purpose": "PerformanceAndHealth" }
		}
	*/
	sendTelemetryEvent('errorKillingProcess', { message: msg, stack: matches });
}

export function sendTelemetryEventForGoVersion(goVersion: string) {
	/* __GDPR__
		"getGoVersion" : {
			"version" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" }
		}
	*/
	sendTelemetryEvent('getGoVersion', { version: `${goVersion}` });
}

export function disposeTelemetryReporter(): Promise<any> {
	if (telemtryReporter) {
		return telemtryReporter.dispose();
	}
	return Promise.resolve(null);
}

let telemtryReporter: TelemetryReporter;

function sendTelemetryEvent(
	eventName: string,
	properties?: { [key: string]: string },
	measures?: { [key: string]: number }
): void {
	if (!aiKey) {
		return; // cannot enable telemetry
	}
	telemtryReporter = telemtryReporter
		? telemtryReporter
		: new TelemetryReporter(extensionId, extensionVersion, aiKey);
	telemtryReporter.sendTelemetryEvent(eventName, properties, measures);
}