import {
	IExecuteFunctions,
} from 'n8n-core';
import {
	IDataObject,
	ILoadOptionsFunctions,
	INodeExecutionData,
	INodePropertyOptions,
	INodeType,
	INodeTypeDescription,
} from 'n8n-workflow';
import {
	clickupApiRequest,
	clickupApiRequestAllItems,
	validateJSON,
} from './GenericFunctions';
import {
	taskFields,
	taskOperations,
} from './TaskDescription';
import {
	listFields,
	listOperations,
} from './ListDescription';
import {
	ITask,
 } from './TaskInterface';

export class ClickUp implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'ClickUp',
		name: 'clickUp',
		icon: 'file:clickup.png',
		group: ['output'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ":" + $parameter["resource"]}}',
		description: 'Consume ClickUp API (Beta)',
		defaults: {
			name: 'ClickUp',
			color: '#7B68EE',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'clickUpApi',
				required: true,
			}
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'List',
						value: 'list',
					},
					{
						name: 'Task',
						value: 'task',
					},
				],
				default: 'task',
				description: 'Resource to consume.',
			},
			...taskOperations,
			...taskFields,
			...listOperations,
			...listFields,
		],
	};

	methods = {
		loadOptions: {
			// Get all the available teams to display them to user so that he can
			// select them easily
			async getTeams(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const { teams } = await clickupApiRequest.call(this, 'GET', '/team');
				for (const team of teams) {
					const teamName = team.name;
					const teamId = team.id;
					returnData.push({
						name: teamName,
						value: teamId,
					});
				}
				return returnData;
			},
			// Get all the available spaces to display them to user so that he can
			// select them easily
			async getSpaces(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const teamId = this.getCurrentNodeParameter('team') as string;
				const returnData: INodePropertyOptions[] = [];
				const { spaces } = await clickupApiRequest.call(this, 'GET', `/team/${teamId}/space`);
				for (const space of spaces) {
					const spaceName = space.name;
					const spaceId = space.id;
					returnData.push({
						name: spaceName,
						value: spaceId,
					});
				}
				return returnData;
			},
			// Get all the available folders to display them to user so that he can
			// select them easily
			async getFolders(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const spaceId = this.getCurrentNodeParameter('space') as string;
				const returnData: INodePropertyOptions[] = [];
				const { folders } = await clickupApiRequest.call(this, 'GET', `/space/${spaceId}/folder`);
				for (const folder of folders) {
					const folderName = folder.name;
					const folderId = folder.id;
					returnData.push({
						name: folderName,
						value: folderId,
					});
				}
				return returnData;
			},
			// Get all the available lists to display them to user so that he can
			// select them easily
			async getLists(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const folderId = this.getCurrentNodeParameter('folder') as string;
				const returnData: INodePropertyOptions[] = [];
				const { lists } = await clickupApiRequest.call(this, 'GET', `/folder/${folderId}/list`);
				for (const list of lists) {
					const listName = list.name;
					const listId = list.id;
					returnData.push({
						name: listName,
						value: listId,
					});
				}
				return returnData;
			},
			// Get all the available lists without a folder to display them to user so that he can
			// select them easily
			async getFolderlessLists(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const spaceId = this.getCurrentNodeParameter('space') as string;
				const returnData: INodePropertyOptions[] = [];
				const { lists } = await clickupApiRequest.call(this, 'GET', `/space/${spaceId}/list`);
				for (const list of lists) {
					const listName = list.name;
					const listId = list.id;
					returnData.push({
						name: listName,
						value: listId,
					});
				}
				return returnData;
			},
			// Get all the available assignees to display them to user so that he can
			// select them easily
			async getAssignees(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const listId = this.getCurrentNodeParameter('list') as string;
				const returnData: INodePropertyOptions[] = [];
				const { members } = await clickupApiRequest.call(this, 'GET', `/list/${listId}/member`);
				for (const member of members) {
					const memberName = member.username;
					const menberId = member.id;
					returnData.push({
						name: memberName,
						value: menberId,
					});
				}
				return returnData;
			},
			// Get all the available tags to display them to user so that he can
			// select them easily
			async getTags(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const spaceId = this.getCurrentNodeParameter('space') as string;
				const returnData: INodePropertyOptions[] = [];
				const { tags } = await clickupApiRequest.call(this, 'GET', `/space/${spaceId}/tag`);
				for (const tag of tags) {
					const tagName = tag.name;
					const tagId = tag.id;
					returnData.push({
						name: tagName,
						value: tagId,
					});
				}
				return returnData;
			},
			// Get all the available tags to display them to user so that he can
			// select them easily
			async getStatuses(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const listId = this.getCurrentNodeParameter('list') as string;
				const returnData: INodePropertyOptions[] = [];
				const { statuses } = await clickupApiRequest.call(this, 'GET', `/list/${listId}`);
				for (const status of statuses) {
					const statusName = status.status;
					const statusId = status.status;
					returnData.push({
						name: statusName,
						value: statusId,
					});
				}
				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 === 'task') {
				if (operation === 'create') {
					const listId = this.getNodeParameter('list', i) as string;
					const name = this.getNodeParameter('name', i) as string;
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const body: ITask = {
							name,
					};
					if (additionalFields.customFieldsJson) {
						const customFields = validateJSON(additionalFields.customFieldsJson as string);
						if (customFields === undefined) {
							throw new Error('Custom Fields: Invalid JSON');
						}
						body.custom_fields = customFields;
					}
					if (additionalFields.content) {
						body.content = additionalFields.content as string;
					}
					if (additionalFields.assignees) {
						body.assignees = additionalFields.assignees as string[];
					}
					if (additionalFields.tags) {
						body.tags = additionalFields.tags as string[];
					}
					if (additionalFields.status) {
						body.status = additionalFields.status as string;
					}
					if (additionalFields.priority) {
						body.priority = additionalFields.priority as number;
					}
					if (additionalFields.dueDate) {
						body.due_date = new Date(additionalFields.dueDate as string).getTime();
					}
					if (additionalFields.dueDateTime) {
						body.due_date_time = additionalFields.dueDateTime as boolean;
					}
					if (additionalFields.timeEstimate) {
						body.time_estimate = (additionalFields.timeEstimate as number) * 6000;
					}
					if (additionalFields.startDate) {
						body.start_date = new Date(additionalFields.startDate as string).getTime();
					}
					if (additionalFields.startDateTime) {
						body.start_date_time = additionalFields.startDateTime as boolean;
					}
					if (additionalFields.notifyAll) {
						body.notify_all = additionalFields.notifyAll as boolean;
					}
					if (additionalFields.parentId) {
						body.parent = additionalFields.parentId as string;
					}
					if (additionalFields.markdownContent) {
						delete body.content;
						body.markdown_content = additionalFields.content as string;
					}
					responseData = await clickupApiRequest.call(this, 'POST', `/list/${listId}/task`, body);
				}
				if (operation === 'update') {
					const taskId = this.getNodeParameter('id', i) as string;
					const updateFields = this.getNodeParameter('updateFields', i) as IDataObject;
					const body: ITask = {};
					if (updateFields.content) {
						body.content = updateFields.content as string;
					}
					if (updateFields.priority) {
						body.priority = updateFields.priority as number;
					}
					if (updateFields.dueDate) {
						body.due_date = new Date(updateFields.dueDate as string).getTime();
					}
					if (updateFields.dueDateTime) {
						body.due_date_time = updateFields.dueDateTime as boolean;
					}
					if (updateFields.timeEstimate) {
						body.time_estimate = (updateFields.timeEstimate as number) * 6000;
					}
					if (updateFields.startDate) {
						body.start_date = new Date(updateFields.startDate as string).getTime();
					}
					if (updateFields.startDateTime) {
						body.start_date_time = updateFields.startDateTime as boolean;
					}
					if (updateFields.notifyAll) {
						body.notify_all = updateFields.notifyAll as boolean;
					}
					if (updateFields.name) {
						body.name = updateFields.name as string;
					}
					if (updateFields.parentId) {
						body.parent = updateFields.parentId as string;
					}
					if (updateFields.markdownContent) {
						delete body.content;
						body.markdown_content = updateFields.content as string;
					}
					responseData = await clickupApiRequest.call(this, 'PUT', `/task/${taskId}`, body);
				}
				if (operation === 'get') {
					const taskId = this.getNodeParameter('id', i) as string;
					responseData = await clickupApiRequest.call(this, 'GET', `/task/${taskId}`);
				}
				if (operation === 'getAll') {
					const returnAll = true;
					//const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const filters = this.getNodeParameter('filters', i) as IDataObject;
					if (filters.archived) {
						qs.archived = filters.archived as boolean;
					}
					if (filters.subtasks) {
						qs.subtasks = filters.subtasks as boolean;
					}
					if (filters.includeClosed) {
						qs.include_closed = filters.includeClosed as boolean;
					}
					if (filters.orderBy) {
						qs.order_by = filters.orderBy as string;
					}
					if (filters.statuses) {
						qs.statuses = filters.statuses as string[];
					}
					if (filters.assignees) {
						qs.assignees = filters.assignees as string[];
					}
					if (filters.tags) {
						qs.tags = filters.tags as string[];
					}
					if (filters.dueDateGt) {
						qs.due_date_gt = new Date(filters.dueDateGt as string).getTime();
					}
					if (filters.dueDateLt) {
						qs.due_date_lt = new Date(filters.dueDateLt as string).getTime();
					}
					if (filters.dateCreatedGt) {
						qs.date_created_gt = new Date(filters.dateCreatedGt as string).getTime();
					}
					if (filters.dateCreatedLt) {
						qs.date_created_lt = new Date(filters.dateCreatedLt as string).getTime();
					}
					if (filters.dateUpdatedGt) {
						qs.date_updated_gt = new Date(filters.dateUpdatedGt as string).getTime();
					}
					if (filters.dateUpdatedLt) {
						qs.date_updated_lt = new Date(filters.dateUpdatedLt as string).getTime();
					}
					const listId = this.getNodeParameter('list', i) as string;
					if (returnAll === true) {
						responseData = await clickupApiRequestAllItems.call(this, 'tasks', 'GET', `/list/${listId}/task`, {}, qs);
					} else {
						// qs.limit = this.getNodeParameter('limit', i) as number;
						// responseData = await clickupApiRequest.call(this, 'GET', `/list/${listId}/task`, {}, qs);
						// responseData = responseData.tasks;
					}
				}
				if (operation === 'setCustomField') {
					const taskId = this.getNodeParameter('task', i) as string;
					const fieldId = this.getNodeParameter('field', i) as string;
					const value = this.getNodeParameter('value', i) as string;
					const jsonParse = this.getNodeParameter('jsonParse', i) as boolean;

					const body: IDataObject = {};
					body.value = value;
					if (jsonParse === true) {
						body.value = validateJSON(body.value);
						if (body.value === undefined) {
							throw new Error('Value is invalid JSON!');
						}
					} else {
						//@ts-ignore
						if (!isNaN(body.value)) {
							body.value = parseInt(body.value, 10);
						}
					}
					responseData = await clickupApiRequest.call(this, 'POST', `/task/${taskId}/field/${fieldId}`, body);
				}
				if (operation === 'delete') {
					const taskId = this.getNodeParameter('id', i) as string;
					responseData = await clickupApiRequest.call(this, 'DELETE', `/task/${taskId}`, {});
				}
			}
			if (resource === 'list') {
				if (operation === 'customFields') {
					const listId = this.getNodeParameter('list', i) as string;
					responseData = await clickupApiRequest.call(this, 'GET', `/list/${listId}/field`);
					responseData = responseData.fields;
				}
			}
			if (Array.isArray(responseData)) {
				returnData.push.apply(returnData, responseData as IDataObject[]);
			} else {
				returnData.push(responseData as IDataObject);
			}
		}
		return [this.helpers.returnJsonArray(returnData)];
	}
}