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

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

import {
	pushbulletApiRequest,
	pushbulletApiRequestAllItems,
} from './GenericFunctions';

import * as moment from 'moment-timezone';

export class Pushbullet implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'Pushbullet',
		name: 'pushbullet',
		icon: 'file:pushbullet.svg',
		group: ['input'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume Pushbullet API',
		defaults: {
			name: 'Pushbullet',
			color: '#457854',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'pushbulletOAuth2Api',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Push',
						value: 'push',
					},
				],
				default: 'push',
				description: 'The resource to operate on.',
			},
			{
				displayName: 'Operation',
				name: 'operation',
				type: 'options',
				displayOptions: {
					show: {
						resource: [
							'push',
						],
					},
				},
				options: [
					{
						name: 'Create',
						value: 'create',
						description: 'Create a push',
					},
					{
						name: 'Delete',
						value: 'delete',
						description: 'Delete a push',
					},
					{
						name: 'Get All',
						value: 'getAll',
						description: 'Get all pushes',
					},
					{
						name: 'Update',
						value: 'update',
						description: 'Update a push',
					},
				],
				default: 'create',
				description: 'The operation to perform.',
			},
			{
				displayName: 'Type',
				name: 'type',
				type: 'options',
				options: [
					{
						name: 'File',
						value: 'file',
					},
					{
						name: 'Link',
						value: 'link',
					},
					{
						name: 'Note',
						value: 'note',
					},
				],
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
					},
				},
				default: 'note',
			},
			{
				displayName: 'Title',
				name: 'title',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
						type: [
							'note',
							'link',
						],
					},
				},
				default: '',
				description: `Title of the push.`,
			},
			{
				displayName: 'Body',
				name: 'body',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
						type: [
							'note',
							'link',
							'file',
						],
					},
				},
				default: '',
				description: `Body of the push.`,
			},
			{
				displayName: 'URL',
				name: 'url',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
						type: [
							'link',
						],
					},
				},
				default: '',
				description: `URL of the push.`,
			},
			{
				displayName: 'Binary Property',
				name: 'binaryPropertyName',
				type: 'string',
				default: 'data',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
						type: [
							'file',
						],
					},
				},
				placeholder: '',
				description: 'Name of the binary property which contains<br />the data for the file to be created.',
			},
			{
				displayName: 'Target',
				name: 'target',
				type: 'options',
				options: [
					{
						name: 'Channel Tag',
						value: 'channel_tag',
						description: 'Send the push to all subscribers to your channel that has this tag',
					},
					{
						name: 'Default',
						value: 'default',
						description: `Broadcast it to all of the user's devices`,
					},
					{
						name: 'Device ID',
						value: 'device_iden',
						description: 'Send the push to a specific device',
					},
					{
						name: 'Email',
						value: 'email',
						description: 'Send the push to this email address',
					},
				],
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
					},
				},
				default: 'default',
				description: 'Define the medium that will be used to send the push.',
			},
			{
				displayName: 'Value',
				name: 'value',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
					},
					hide: {
						target: [
							'default',
							'device_iden',
						],
					},
				},
				default: '',
				description: `The value to be set depending on the target selected.<br>
				For example, if the target selected is email then this field would take the email address<br>
				of the person you are trying to send the push to.`,
			},
			{
				displayName: 'Value',
				name: 'value',
				type: 'options',
				typeOptions: {
					loadOptionsMethod: 'getDevices',
				},
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'create',
						],
						target: [
							'device_iden',
						],
					},
				},
				default: '',
				description: '',
			},
			{
				displayName: 'Push ID',
				name: 'pushId',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'delete',
						],
					},
				},
				default: '',
			},
			{
				displayName: 'Return All',
				name: 'returnAll',
				type: 'boolean',
				displayOptions: {
					show: {
						operation: [
							'getAll',
						],
						resource: [
							'push',
						],
					},
				},
				default: false,
				description: 'If all results should be returned or only up to a given limit.',
			},
			{
				displayName: 'Limit',
				name: 'limit',
				type: 'number',
				displayOptions: {
					show: {
						operation: [
							'getAll',
						],
						resource: [
							'push',
						],
						returnAll: [
							false,
						],
					},
				},
				typeOptions: {
					minValue: 1,
					maxValue: 500,
				},
				default: 100,
				description: 'How many results to return.',
			},
			{
				displayName: 'Filters',
				name: 'filters',
				type: 'collection',
				placeholder: 'Add Filter',
				default: {},
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'getAll',
						],
					},
				},
				options: [
					{
						displayName: 'Active',
						name: 'active',
						type: 'boolean',
						default: false,
						description: `Don't return deleted pushes.`,
					},
					{
						displayName: 'Modified After',
						name: 'modified_after',
						type: 'dateTime',
						default: '',
						description: `Request pushes modified after this timestamp.`,
					},
				],
			},
			{
				displayName: 'Push ID',
				name: 'pushId',
				type: 'string',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'update',
						],
					},
				},
				default: '',
			},
			{
				displayName: 'Dismissed',
				name: 'dismissed',
				type: 'boolean',
				required: true,
				displayOptions: {
					show: {
						resource: [
							'push',
						],
						operation: [
							'update',
						],
					},
				},
				default: false,
				description: 'Marks a push as having been dismissed by the user, will cause any notifications for the push to be hidden if possible.',
			},
		],
	};

	methods = {
		loadOptions: {
			async getDevices(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const { devices } = await pushbulletApiRequest.call(this, 'GET', '/devices');
				for (const device of devices) {
					returnData.push({
						name: device.nickname,
						value: device.iden,
					});
				}
				return returnData;
			},
		},
	};


	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: IDataObject[] = [];
		const length = (items.length as unknown) as number;
		const qs: IDataObject = {};
		let responseData;
		const resource = this.getNodeParameter('resource', 0) as string;
		const operation = this.getNodeParameter('operation', 0) as string;
		for (let i = 0; i < length; i++) {

			if (resource === 'push') {
				if (operation === 'create') {
					const type = this.getNodeParameter('type', i) as string;

					const message = this.getNodeParameter('body', i) as string;

					const target = this.getNodeParameter('target', i) as string;

					const body: IDataObject = {
						type,
						body: message,
					};

					if (target !== 'default') {
						const value = this.getNodeParameter('value', i) as string;
						body[target as string] = value;
					}

					if (['note', 'link'].includes(type)) {
						body.title = this.getNodeParameter('title', i) as string;

						if (type === 'link') {
							body.url = this.getNodeParameter('url', i) as string;
						}
					}

					if (type === 'file') {
						const binaryPropertyName = this.getNodeParameter('binaryPropertyName', 0) as string;

						if (items[i].binary === undefined) {
							throw new NodeOperationError(this.getNode(), 'No binary data exists on item!');
						}
						//@ts-ignore
						if (items[i].binary[binaryPropertyName] === undefined) {
							throw new NodeOperationError(this.getNode(), `No binary data property "${binaryPropertyName}" does not exists on item!`);
						}

						const binaryData = (items[i].binary as IBinaryKeyData)[binaryPropertyName];

						//create upload url
						const {
							upload_url: uploadUrl,
							file_name,
							file_type,
							file_url,
						} = await pushbulletApiRequest.call(
							this,
							'POST',
							`/upload-request`,
							{
								file_name: binaryData.fileName,
								file_type: binaryData.mimeType,
							},
						);

						//upload the file
						await pushbulletApiRequest.call(
							this,
							'POST',
							'',
							{},
							{},
							uploadUrl,
							{
								formData: {
									file: {
										value: Buffer.from(binaryData.data, BINARY_ENCODING),
										options: {
											filename: binaryData.fileName,
										},
									},
								},
								json: false,
							},
						);

						body.file_name = file_name;
						body.file_type = file_type;
						body.file_url = file_url;
					}

					responseData = await pushbulletApiRequest.call(
						this,
						'POST',
						`/pushes`,
						body,
					);
				}

				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', 0) as boolean;

					const filters = this.getNodeParameter('filters', i) as IDataObject;

					Object.assign(qs, filters);

					if (qs.modified_after) {
						qs.modified_after = moment(qs.modified_after as string).unix();
					}

					if (returnAll) {
						responseData = await pushbulletApiRequestAllItems.call(this, 'pushes', 'GET', '/pushes', {}, qs);

					} else {
						qs.limit = this.getNodeParameter('limit', 0) as number;

						responseData = await pushbulletApiRequest.call(this, 'GET', '/pushes', {}, qs);

						responseData = responseData.pushes;
					}
				}

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

					responseData = await pushbulletApiRequest.call(
						this,
						'DELETE',
						`/pushes/${pushId}`,
					);

					responseData = { success: true };
				}

				if (operation === 'update') {
					const pushId = this.getNodeParameter('pushId', i) as string;

					const dismissed = this.getNodeParameter('dismissed', i) as boolean;

					responseData = await pushbulletApiRequest.call(
						this,
						'POST',
						`/pushes/${pushId}`,
						{
							dismissed,
						},
					);
				}
			}
		}
		if (Array.isArray(responseData)) {
			returnData.push.apply(returnData, responseData as IDataObject[]);

		} else if (responseData !== undefined) {
			returnData.push(responseData as IDataObject);

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