import {
	BINARY_ENCODING,
	IExecuteFunctions,
} from 'n8n-core';

import {
	IBinaryData,
	IDataObject,
	ILoadOptionsFunctions,
	INodeExecutionData,
	INodePropertyOptions,
	INodeType,
	INodeTypeDescription,
	NodeOperationError,
} from 'n8n-workflow';

import {
	getAttachemnts,
	webexApiRequest,
	webexApiRequestAllItems,
} from './GenericFunctions';

import {
	meetingFields,
	meetingOperations,
	// meetingTranscriptFields,
	// meetingTranscriptOperations,
	messageFields,
	messageOperations,
} from './descriptions';

import * as moment from 'moment-timezone';

export class CiscoWebex implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'Webex by Cisco',
		name: 'ciscoWebex',
		icon: 'file:ciscoWebex.png',
		group: ['transform'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume the Cisco Webex API',
		defaults: {
			name: 'Webex',
			color: '#29b6f6',
		},
		credentials: [
			{
				name: 'ciscoWebexOAuth2Api',
				required: true,
			},
		],
		inputs: ['main'],
		outputs: ['main'],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Meeting',
						value: 'meeting',
					},
					// {
					// 	name: 'Meeeting Transcript',
					// 	value: 'meetingTranscript',
					// },
					{
						name: 'Message',
						value: 'message',
					},
				],
				default: 'message',
				description: 'Resource to consume',
			},
			...meetingOperations,
			...meetingFields,
			// ...meetingTranscriptOperations,
			// ...meetingTranscriptFields,
			...messageOperations,
			...messageFields,
		],
	};

	methods = {
		loadOptions: {
			async getRooms(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const rooms = await webexApiRequestAllItems.call(this, 'items', 'GET', '/rooms');
				for (const room of rooms) {
					returnData.push({
						name: room.title,
						value: room.id,
					});
				}
				return returnData;
			},
			async getSites(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const sites = await webexApiRequestAllItems.call(this, 'sites', 'GET', '/meetingPreferences/sites');
				for (const site of sites) {
					returnData.push({
						name: site.siteUrl,
						value: site.siteUrl,
					});
				}
				return returnData;
			},
		},
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: IDataObject[] = [];
		const timezone = this.getTimezone();
		const resource = this.getNodeParameter('resource', 0) as string;
		const operation = this.getNodeParameter('operation', 0) as string;

		let responseData;


		for (let i = 0; i < items.length; i++) {

			try {
				if (resource === 'message') {

					// **********************************************************************
					//                                message
					// **********************************************************************

					if (operation === 'create') {

						// ----------------------------------------
						//             message: create
						// ----------------------------------------

						// https://developer.webex.com/docs/api/v1/messages/create-a-message
						const destination = this.getNodeParameter('destination', i);
						const file = this.getNodeParameter('additionalFields.fileUi.fileValue', i, {}) as IDataObject;
						const markdown = this.getNodeParameter('additionalFields.markdown', i, '') as boolean;
						const body = {} as IDataObject;
						if (destination === 'room') {
							body['roomId'] = this.getNodeParameter('roomId', i);
						}

						if (destination === 'person') {
							const specifyPersonBy = this.getNodeParameter('specifyPersonBy', 0) as string;
							if (specifyPersonBy === 'id') {
								body['toPersonId'] = this.getNodeParameter('toPersonId', i);
							} else {
								body['toPersonEmail'] = this.getNodeParameter('toPersonEmail', i);
							}
						}

						if (markdown) {
							body['markdown'] = markdown;
						}

						body['text'] = this.getNodeParameter('text', i);

						body.attachments = getAttachemnts(this.getNodeParameter('additionalFields.attachmentsUi.attachmentValues', i, []) as IDataObject[]);

						if (Object.keys(file).length) {

							const isBinaryData = file.fileLocation === 'binaryData' ? true : false;

							if (isBinaryData) {

								if (!items[i].binary) {
									throw new NodeOperationError(this.getNode(), 'No binary data exists on item!');
								}

								const binaryPropertyName = file.binaryPropertyName as string;

								const binaryData = items[i].binary![binaryPropertyName] as IBinaryData;

								const formData = {
									files: {
										value: Buffer.from(binaryData.data, BINARY_ENCODING),
										options: {
											filename: binaryData.fileName,
											contentType: binaryData.mimeType,
										},
									},
								};
								Object.assign(body, formData);
							} else {
								const url = file.url as string;
								Object.assign(body, { files: url });
							}
						}

						if (file.fileLocation === 'binaryData') {
							responseData = await webexApiRequest.call(this, 'POST', '/messages', {}, {}, undefined, { formData: body });
						} else {
							responseData = await webexApiRequest.call(this, 'POST', '/messages', body);
						}


					} else if (operation === 'delete') {

						// ----------------------------------------
						//             message: delete
						// ----------------------------------------

						// https://developer.webex.com/docs/api/v1/messages/delete-a-message
						const messageId = this.getNodeParameter('messageId', i);

						const endpoint = `/messages/${messageId}`;
						responseData = await webexApiRequest.call(this, 'DELETE', endpoint);
						responseData = { success: true };

					} else if (operation === 'get') {

						// ----------------------------------------
						//               message: get
						// ----------------------------------------

						// https://developer.webex.com/docs/api/v1/messages/get-message-details
						const messageId = this.getNodeParameter('messageId', i);

						const endpoint = `/messages/${messageId}`;
						responseData = await webexApiRequest.call(this, 'GET', endpoint);


					} else if (operation === 'getAll') {

						// ----------------------------------------
						//             message: getAll
						// ----------------------------------------

						// https://developer.webex.com/docs/api/v1/messages/list-messages
						const qs: IDataObject = {
							roomId: this.getNodeParameter('roomId', i),
						};
						const filters = this.getNodeParameter('filters', i) as IDataObject;
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;


						if (Object.keys(filters).length) {
							Object.assign(qs, filters);
						}

						if (returnAll === true) {
							responseData = await webexApiRequestAllItems.call(this, 'items', 'GET', '/messages', {}, qs);
						} else {
							qs.max = this.getNodeParameter('limit', i) as number;
							responseData = await webexApiRequest.call(this, 'GET', '/messages', {}, qs);
							responseData = responseData.items;
						}


					} else if (operation === 'update') {

						// ----------------------------------------
						//             message: update
						// ----------------------------------------

						// https://developer.webex.com/docs/api/v1/messages/edit-a-message
						const messageId = this.getNodeParameter('messageId', i) as string;
						const markdown = this.getNodeParameter('markdown', i) as boolean;

						const endpoint = `/messages/${messageId}`;

						responseData = await webexApiRequest.call(this, 'GET', endpoint);

						const body = {
							roomId: responseData.roomId,
						} as IDataObject;

						if (markdown === true) {
							body['markdown'] = this.getNodeParameter('markdownText', i);
						} else {
							body['text'] = this.getNodeParameter('text', i);
						}

						responseData = await webexApiRequest.call(this, 'PUT', endpoint, body);
					}
				}

				if (resource === 'meeting') {
					if (operation === 'create') {
						const title = this.getNodeParameter('title', i) as string;
						const start = this.getNodeParameter('start', i) as string;
						const end = this.getNodeParameter('end', i) as string;
						const invitees = this.getNodeParameter('additionalFields.inviteesUi.inviteeValues', i, []) as IDataObject[];
						const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;

						const body: IDataObject = {
							title,
							start: moment.tz(start, timezone).format(),
							end: moment.tz(end, timezone).format(),
							...additionalFields,
						};

						if (body.requireRegistrationInfo) {
							body['registration'] = (body.requireRegistrationInfo as string[])
								.reduce((obj, value) => Object.assign(obj, { [`${value}`]: true }), {});
							delete body.requireRegistrationInfo;
						}

						if (invitees) {
							body['invitees'] = invitees;
							delete body.inviteesUi;
						}

						responseData = await webexApiRequest.call(this, 'POST', '/meetings', body);

					}

					if (operation === 'delete') {
						const meetingId = this.getNodeParameter('meetingId', i) as string;
						const options = this.getNodeParameter('options', i) as IDataObject;

						const qs: IDataObject = {
							...options,
						};

						responseData = await webexApiRequest.call(this, 'DELETE', `/meetings/${meetingId}`, {}, qs);
						responseData = { success: true };
					}

					if (operation === 'get') {
						const meetingId = this.getNodeParameter('meetingId', i) as string;
						const options = this.getNodeParameter('options', i) as IDataObject;
						let headers = {};

						const qs: IDataObject = {
							...options,
						};

						if (options.passsword) {
							headers = {
								passsword: options.passsword,
							};
						}

						responseData = await webexApiRequest.call(this, 'GET', `/meetings/${meetingId}`, {}, qs, undefined, { headers });
					}

					if (operation === 'getAll') {
						const filters = this.getNodeParameter('filters', i) as IDataObject;
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;

						const qs: IDataObject = {
							...filters,
						};

						if (qs.from) {
							qs.from = moment(qs.from as string).utc(true).format();
						}

						if (qs.to) {
							qs.to = moment(qs.to as string).utc(true).format();
						}

						if (returnAll === true) {
							responseData = await webexApiRequestAllItems.call(this, 'items', 'GET', '/meetings', {}, qs);
							returnData.push(...responseData);
						} else {
							qs.max = this.getNodeParameter('limit', i) as number;
							responseData = await webexApiRequest.call(this, 'GET', '/meetings', {}, qs);
							responseData = responseData.items;
						}
					}

					if (operation === 'update') {
						const meetingId = this.getNodeParameter('meetingId', i) as string;
						const invitees = this.getNodeParameter('updateFields.inviteesUi.inviteeValues', i, []) as IDataObject[];
						const updateFields = this.getNodeParameter('updateFields', i) as IDataObject;

						const {
							title,
							password,
							start,
							end,
						} = await webexApiRequest.call(this, 'GET', `/meetings/${meetingId}`);

						const body: IDataObject = {
							...updateFields,
						};

						if (body.requireRegistrationInfo) {
							body['registration'] = (body.requireRegistrationInfo as string[])
								.reduce((obj, value) => Object.assign(obj, { [`${value}`]: true }), {});
							delete body.requireRegistrationInfo;
						}

						if (invitees.length) {
							body['invitees'] = invitees;
						}

						if (body.start) {
							body.start = moment.tz(updateFields.start, timezone).format();
						} else {
							body.start = start;
						}

						if (body.end) {
							body.end = moment.tz(updateFields.end, timezone).format();
						} else {
							body.end = end;
						}

						if (!body.title) {
							body.title = title;
						}

						if (!body.password) {
							body.password = password;
						}

						responseData = await webexApiRequest.call(this, 'PUT', `/meetings/${meetingId}`, body);

					}
				}

				if (Array.isArray(responseData)) {
					returnData.push.apply(returnData, responseData as IDataObject[]);
				} else if (responseData !== undefined) {
					returnData.push(responseData as IDataObject);
				}

			} catch (error) {

				if (this.continueOnFail()) {
					returnData.push({ error: error.toString() });
					continue;
				}

				throw error;
			}

		}

		// if (resource === 'meetingTranscript') {

		// 	if (operation === 'download') {
		// 		for (let i = 0; i < items.length; i++) {
		// 			const transcriptId = this.getNodeParameter('transcriptId', i) as string;
		// 			const binaryPropertyName = this.getNodeParameter('binaryPropertyName', i) as string;
		// 			const meetingId = this.getNodeParameter('meetingId', i) as string;
		// 			const options = this.getNodeParameter('options', i) as IDataObject;

		// 			const qs: IDataObject = {
		// 				meetingId,
		// 				...options,
		// 			};
		// 			const transcription = await webexApiRequest.call(this, 'GET', `/meetingTranscripts/${transcriptId}/download`, {}, qs);

		// 			responseData = {
		// 				json: {},
		// 				binary: {
		// 					[binaryPropertyName]: {
		// 						data: Buffer.from(transcription, BINARY_ENCODING),
		// 						//contentType:
		// 						//FILE
		// 					}
		// 				}
		// 			}

		// 		}
		// 	}

		// 	if (operation === 'getAll') {
		// 		for (let i = 0; i < items.length; i++) {
		// 			try {
		// 				const meetingId = this.getNodeParameter('meetingId', i) as string;
		// 				const filters = this.getNodeParameter('filters', i) as IDataObject;
		// 				const returnAll = this.getNodeParameter('returnAll', i) as boolean;

		// 				const qs: IDataObject = {
		// 					meetingId,
		// 					...filters,
		// 				};

		// 				if (returnAll === true) {
		// 					responseData = await webexApiRequestAllItems.call(this, 'items', 'GET', '/meetingTranscripts', {}, qs);
		// 					returnData.push(...responseData);
		// 				} else {
		// 					qs.max = this.getNodeParameter('limit', i) as number;
		// 					responseData = await webexApiRequest.call(this, 'GET', '/meetingTranscripts', {}, qs);
		// 					returnData.push(...responseData.items);
		// 				}
		// 			} catch (error) {
		// 				if (this.continueOnFail()) {
		// 					returnData.push({
		// 						error: error.message,
		// 					});
		// 				}
		// 			}
		// 		}
		// 	}
		// }

		return [this.helpers.returnJsonArray(returnData)];
	}
}