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

import { RequestType, NotificationType } from 'vscode-languageclient';

export interface IMessage {
	jsonrpc: string;
}

// ------------------------------- < Telemetry Sent Event > ------------------------------------

/**
 * Event sent when the language service send a telemetry event
 */
export namespace TelemetryNotification {
	export const type = new NotificationType<TelemetryParams, void>('telemetry/sqlevent');
}

/**
 * Update event parameters
 */
export class TelemetryParams {
	public params: {
		eventName: string;
		properties: ITelemetryEventProperties;
		measures: ITelemetryEventMeasures;
	};
}

export interface ITelemetryEventProperties {
	[key: string]: string;
}

export interface ITelemetryEventMeasures {
	[key: string]: number;
}

/**
 * Contract Classes
 */
export interface Result {
	success: boolean;
	errorMessage: string;
}

export interface ColumnInfo {
	name: string;
	sqlType: string;
	isNullable: boolean;
}


/**
 * PROSEDiscoveryRequest
 * Send this request to create a new PROSE session with a new file and preview it
 */
const proseDiscoveryRequestName = 'flatfile/proseDiscovery';

export interface PROSEDiscoveryParams {
	filePath: string;
	tableName: string;
	schemaName?: string;
	fileType?: string;
}

export interface PROSEDiscoveryResponse {
	dataPreview: string[][];
	columnInfo: ColumnInfo[];
}

/**
 * InsertDataRequest
 */
const insertDataRequestName = 'flatfile/insertData';

export interface InsertDataParams {
	connectionString: string;
	batchSize: number;
}

export interface InsertDataResponse {
	result: Result;
}


/**
 * GetColumnInfoRequest
 */
const getColumnInfoRequestName = 'flatfile/getColumnInfo';

export interface GetColumnInfoParams {
}

export interface GetColumnInfoResponse {
	columnInfo: ColumnInfo[];
}


/**
 * ChangeColumnSettingsRequest
 */
const changeColumnSettingsRequestName = 'flatfile/changeColumnSettings';

export interface ChangeColumnSettingsParams {
	index: number;
	newName?: string;
	newDataType?: string;
	newNullable?: boolean;
	newInPrimaryKey?: boolean;
}

export interface ChangeColumnSettingsResponse {
	result: Result;
}

/**
 * Requests
 */
export namespace PROSEDiscoveryRequest {
	export const type = new RequestType<PROSEDiscoveryParams, PROSEDiscoveryResponse, void, void>(proseDiscoveryRequestName);
}

export namespace InsertDataRequest {
	export const type = new RequestType<InsertDataParams, InsertDataResponse, void, void>(insertDataRequestName);
}

export namespace GetColumnInfoRequest {
	export const type = new RequestType<GetColumnInfoParams, GetColumnInfoResponse, void, void>(getColumnInfoRequestName);
}

export namespace ChangeColumnSettingsRequest {
	export const type = new RequestType<ChangeColumnSettingsParams, ChangeColumnSettingsResponse, void, void>(changeColumnSettingsRequestName);
}


export interface FlatFileProvider {
	providerId?: string;

	sendPROSEDiscoveryRequest(params: PROSEDiscoveryParams): Thenable<PROSEDiscoveryResponse>;
	sendInsertDataRequest(params: InsertDataParams): Thenable<InsertDataResponse>;
	sendGetColumnInfoRequest(params: GetColumnInfoParams): Thenable<GetColumnInfoResponse>;
	sendChangeColumnSettingsRequest(params: ChangeColumnSettingsParams): Thenable<ChangeColumnSettingsResponse>;
}