import {
	IExecuteFunctions,
} from 'n8n-core';
import {
	IDataObject,
	INodeTypeDescription,
	INodeExecutionData,
	INodeType,
	ILoadOptionsFunctions,
	INodePropertyOptions,
} from 'n8n-workflow';
import {
	leadOpeations,
	leadFields,
} from './LeadDescription';
import {
	intercomApiRequest,
	intercomApiRequestAllItems,
	validateJSON,
} from './GenericFunctions';
import {
	ILead,
	ILeadCompany,
	IAvatar,
 } from './LeadInterface';
import { userOpeations, userFields } from './UserDescription';
import { IUser, IUserCompany } from './UserInterface';
import { companyOperations, companyFields } from './CompanyDescription';
import { ICompany } from './CompanyInteface';

export class Intercom implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'Intercom',
		name: 'intercom',
		icon: 'file:intercom.png',
		group: ['output'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume intercom API',
		defaults: {
			name: 'Intercom',
			color: '#c02428',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'intercomApi',
				required: true,
			}
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Company',
						value: 'company',
						description: 'Companies allow you to represent commercial organizations using your product.',
					},
					{
						name: 'Lead',
						value: 'lead',
						description: 'Leads are useful for representing logged-out users of your application.',
					},
					{
						name: 'User',
						value: 'user',
						description: 'The Users resource is the primary way of interacting with Intercom',
					},
				],
				default: 'user',
				description: 'Resource to consume.',
			},
			...leadOpeations,
			...userOpeations,
			...companyOperations,
			...userFields,
			...leadFields,
			...companyFields,
		],
	};

	methods = {
		loadOptions: {
			// Get all the available companies to display them to user so that he can
			// select them easily
			async getCompanies(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				let companies, response;
				try {
					response = await intercomApiRequest.call(this, '/companies', 'GET');
				} catch (err) {
					throw new Error(`Intercom Error: ${err}`);
				}
				companies = response.companies;
				for (const company of companies) {
					const companyName = company.name;
					const companyId = company.company_id;
					returnData.push({
						name: companyName,
						value: companyId,
					});
				}
				return returnData;
			},
		},
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: IDataObject[] = [];
		const length = items.length as unknown as number;
		let qs: IDataObject;
		let responseData;
		for (let i = 0; i < length; i++) {
			qs = {};
			const resource = this.getNodeParameter('resource', 0) as string;
			const operation = this.getNodeParameter('operation', 0) as string;
			//https://developers.intercom.com/intercom-api-reference/reference#leads
			if (resource === 'lead') {
				if (operation === 'create' || operation === 'update') {
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const jsonActive = this.getNodeParameter('jsonParameters', i) as boolean;
					const body: ILead = {};
					if (operation === 'create') {
						body.email = this.getNodeParameter('email', i) as string;
					}
					if (additionalFields.email) {
						body.email = additionalFields.email as string;
					}
					if (additionalFields.phone) {
						body.phone = additionalFields.phone as string;
					}
					if (additionalFields.name) {
						body.name = additionalFields.name as string;
					}
					if (additionalFields.unsubscribedFromEmails) {
						body.unsubscribed_from_emails = additionalFields.unsubscribedFromEmails as boolean;
					}
					if (additionalFields.updateLastRequestAt) {
						body.update_last_request_at = additionalFields.updateLastRequestAt as boolean;
					}
					if (additionalFields.utmSource) {
						body.utm_source = additionalFields.utmSource as string;
					}
					if (additionalFields.utmMedium) {
						body.utm_medium = additionalFields.utmMedium as string;
					}
					if (additionalFields.utmCampaign) {
						body.utm_campaign = additionalFields.utmCampaign as string;
					}
					if (additionalFields.utmTerm) {
						body.utm_term = additionalFields.utmTerm as string;
					}
					if (additionalFields.utmContent) {
						body.utm_content = additionalFields.utmContent as string;
					}
					if (additionalFields.avatar) {
						const avatar: IAvatar = {
							type: 'avatar',
							image_url: additionalFields.avatar as string,
						};
						body.avatar = avatar;
					}
					if (additionalFields.companies) {
						const companies: ILeadCompany[] = [];
						// @ts-ignore
						additionalFields.companies.forEach( o => {
							const company: ILeadCompany = {};
							company.company_id = o;
							companies.push(company);
						});
						body.companies = companies;
					}
					if (!jsonActive) {
						const customAttributesValues = (this.getNodeParameter('customAttributesUi', i) as IDataObject).customAttributesValues as IDataObject[];
						if (customAttributesValues) {
							const customAttributes = {};
							for (let i = 0; i < customAttributesValues.length; i++) {
								// @ts-ignore
								customAttributes[customAttributesValues[i].name] = customAttributesValues[i].value;
							}
							body.custom_attributes = customAttributes;
						}
					} else {
						const customAttributesJson = validateJSON(this.getNodeParameter('customAttributesJson', i) as string);
						if (customAttributesJson) {
							body.custom_attributes = customAttributesJson;
						}
					}

					if (operation === 'update') {
						const updateBy = this.getNodeParameter('updateBy', 0) as string;
						const value = this.getNodeParameter('value', i) as string;
						if (updateBy === 'userId') {
							body.user_id = value;
						}
						if (updateBy === 'id') {
							body.id = value;
						}
					}

					try {
						responseData = await intercomApiRequest.call(this, '/contacts', 'POST', body);
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'get') {
					const selectBy = this.getNodeParameter('selectBy', 0) as string;
					const value = this.getNodeParameter('value', i) as string;
					if (selectBy === 'email') {
						qs.email = value;
					}
					if (selectBy === 'userId') {
						qs.user_id = value;
					}
					if (selectBy === 'phone') {
						qs.phone = value;
					}
					try {
						if (selectBy === 'id') {
							responseData = await intercomApiRequest.call(this, `/contacts/${value}`, 'GET');
						} else {
							responseData = await intercomApiRequest.call(this, '/contacts', 'GET', {}, qs);
							responseData = responseData.contacts;
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const filters = this.getNodeParameter('filters', i) as IDataObject;
					Object.assign(qs, filters);

					try {
						if (returnAll === true) {
							responseData = await intercomApiRequestAllItems.call(this, 'contacts', '/contacts', 'GET', {}, qs);
						} else {
							qs.per_page = this.getNodeParameter('limit', i) as number;
							responseData = await intercomApiRequest.call(this, '/contacts', 'GET', {}, qs);
							responseData = responseData.contacts;
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'delete') {
					const deleteBy = this.getNodeParameter('deleteBy', 0) as string;
					const value = this.getNodeParameter('value', i) as string;
					try {
						if (deleteBy === 'id') {
							responseData = await intercomApiRequest.call(this, `/contacts/${value}`, 'DELETE');
						} else {
							qs.user_id = value;
							responseData = await intercomApiRequest.call(this, '/contacts', 'DELETE', {}, qs);
						}
						} catch (err) {
							throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
						}
				}
			}
			//https://developers.intercom.com/intercom-api-reference/reference#users
			if (resource === 'user') {
				if (operation === 'create' || operation === 'update') {
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const jsonActive = this.getNodeParameter('jsonParameters', i) as boolean;
					const body: IUser = {};

					if (operation === 'create') {
						const identifierType = this.getNodeParameter('identifierType', i) as string;
						if (identifierType === 'email') {
							body.email = this.getNodeParameter('idValue', i) as string;
						} else if (identifierType === 'userId') {
							body.user_id = this.getNodeParameter('idValue', i) as string;
						}
					}

					if (additionalFields.email) {
						body.email = additionalFields.email as string;
					}
					if (additionalFields.userId) {
						body.user_id = additionalFields.userId as string;
					}
					if (additionalFields.phone) {
						body.phone = additionalFields.phone as string;
					}
					if (additionalFields.name) {
						body.name = additionalFields.name as string;
					}
					if (additionalFields.unsubscribedFromEmails) {
						body.unsubscribed_from_emails = additionalFields.unsubscribedFromEmails as boolean;
					}
					if (additionalFields.updateLastRequestAt) {
						body.update_last_request_at = additionalFields.updateLastRequestAt as boolean;
					}
					if (additionalFields.sessionCount) {
						body.session_count = additionalFields.sessionCount as number;
					}
					if (additionalFields.avatar) {
						const avatar: IAvatar = {
							type: 'avatar',
							image_url: additionalFields.avatar as string,
						};
						body.avatar = avatar;
					}
					if (additionalFields.utmSource) {
						body.utm_source = additionalFields.utmSource as string;
					}
					if (additionalFields.utmMedium) {
						body.utm_medium = additionalFields.utmMedium as string;
					}
					if (additionalFields.utmCampaign) {
						body.utm_campaign = additionalFields.utmCampaign as string;
					}
					if (additionalFields.utmTerm) {
						body.utm_term = additionalFields.utmTerm as string;
					}
					if (additionalFields.utmContent) {
						body.utm_content = additionalFields.utmContent as string;
					}
					if (additionalFields.companies) {
						const companies: IUserCompany[] = [];
						// @ts-ignore
						additionalFields.companies.forEach( o => {
							const company: IUserCompany = {};
							company.company_id = o;
							companies.push(company);
						});
						body.companies = companies;
					}
					if (additionalFields.sessionCount) {
						body.session_count = additionalFields.sessionCount as number;
					}
					if (!jsonActive) {
						const customAttributesValues = (this.getNodeParameter('customAttributesUi', i) as IDataObject).customAttributesValues as IDataObject[];
						if (customAttributesValues) {
							const customAttributes = {};
							for (let i = 0; i < customAttributesValues.length; i++) {
								// @ts-ignore
								customAttributes[customAttributesValues[i].name] = customAttributesValues[i].value;
							}
							body.custom_attributes = customAttributes;
						}
					} else {
						const customAttributesJson = validateJSON(this.getNodeParameter('customAttributesJson', i) as string);
						if (customAttributesJson) {
							body.custom_attributes = customAttributesJson;
						}
					}

					if (operation === 'update') {
						const updateBy = this.getNodeParameter('updateBy', 0) as string;
						const value = this.getNodeParameter('value', i) as string;
						if (updateBy === 'userId') {
							body.user_id = value;
						}
						if (updateBy === 'id') {
							body.id = value;
						}
						if (updateBy === 'email') {
							body.email = value;
						}
					}

					try {
						responseData = await intercomApiRequest.call(this, '/users', 'POST', body, qs);
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'get') {
					const selectBy = this.getNodeParameter('selectBy', 0) as string;
					const value = this.getNodeParameter('value', i) as string;
					if (selectBy === 'userId') {
						qs.user_id = value;
					}
					try {
						if (selectBy === 'id') {
							responseData = await intercomApiRequest.call(this, `/users/${value}`, 'GET', {}, qs);
						} else {
							responseData = await intercomApiRequest.call(this, '/users', 'GET', {}, qs);
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const filters = this.getNodeParameter('filters', i) as IDataObject;
					Object.assign(qs, filters);

					try {
						if (returnAll === true) {
							responseData = await intercomApiRequestAllItems.call(this, 'users', '/users', 'GET', {}, qs);
						} else {
							qs.per_page = this.getNodeParameter('limit', i) as number;
							responseData = await intercomApiRequest.call(this, '/users', 'GET', {}, qs);
							responseData = responseData.users;
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'delete') {
					const id = this.getNodeParameter('id', i) as string;
					try {
						responseData = await intercomApiRequest.call(this, `/users/${id}`, 'DELETE');
						} catch (err) {
							throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
						}
				}
			}
			//https://developers.intercom.com/intercom-api-reference/reference#companies
			if (resource === 'company') {
				if (operation === 'create' || operation === 'update') {
					const id = this.getNodeParameter('companyId', i) as string;
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const jsonActive = this.getNodeParameter('jsonParameters', i) as boolean;
					const body: ICompany = {
						company_id: id,
					};
					if (additionalFields.monthlySpend) {
						body.monthly_spend = additionalFields.monthlySpend as number;
					}
					if (additionalFields.name) {
						body.name = additionalFields.name as string;
					}
					if (additionalFields.plan) {
						body.plan = additionalFields.plan as string;
					}
					if (additionalFields.size) {
						body.size = additionalFields.size as number;
					}
					if (additionalFields.website) {
						body.website = additionalFields.website as string;
					}
					if (additionalFields.industry) {
						body.industry = additionalFields.industry as string;
					}
					if (!jsonActive) {
						const customAttributesValues = (this.getNodeParameter('customAttributesUi', i) as IDataObject).customAttributesValues as IDataObject[];
						if (customAttributesValues) {
							const customAttributes = {};
							for (let i = 0; i < customAttributesValues.length; i++) {
								// @ts-ignore
								customAttributes[customAttributesValues[i].name] = customAttributesValues[i].value;
							}
							body.custom_attributes = customAttributes;
						}
					} else {
						const customAttributesJson = validateJSON(this.getNodeParameter('customAttributesJson', i) as string);
						if (customAttributesJson) {
							body.custom_attributes = customAttributesJson;
						}
					}
					try {
						responseData = await intercomApiRequest.call(this, '/companies', 'POST', body, qs);
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'get') {
					const selectBy = this.getNodeParameter('selectBy', 0) as string;
					const value = this.getNodeParameter('value', i) as string;
					if (selectBy === 'companyId') {
						qs.company_id = value;
					}
					if (selectBy === 'name') {
						qs.name = value;
					}
					try {
						if (selectBy === 'id') {
							responseData = await intercomApiRequest.call(this, `/companies/${value}`, 'GET', {}, qs);
						} else {
							responseData = await intercomApiRequest.call(this, '/companies', 'GET', {}, qs);
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const filters = this.getNodeParameter('filters', i) as IDataObject;
					Object.assign(qs, filters);

					try {
						if (returnAll === true) {
							responseData = await intercomApiRequestAllItems.call(this, 'companies', '/companies', 'GET', {}, qs);
						} else {
							qs.per_page = this.getNodeParameter('limit', i) as number;
							responseData = await intercomApiRequest.call(this, '/companies', 'GET', {}, qs);
							responseData = responseData.companies;
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
				if (operation === 'users') {
					const filterBy = this.getNodeParameter('filterBy', 0) as string;
					const value = this.getNodeParameter('value', i) as string;
					if (filterBy === 'companyId') {
						qs.company_id = value;
					}
					try {
						if (filterBy === 'id') {
							responseData = await intercomApiRequest.call(this, `/companies/${value}/users`, 'GET', {}, qs);
						} else {
							qs.type = 'users';
							responseData = await intercomApiRequest.call(this, '/companies', 'GET', {}, qs);
						}
					} catch (err) {
						throw new Error(`Intercom Error: ${JSON.stringify(err)}`);
					}
				}
			}
			if (Array.isArray(responseData)) {
				returnData.push.apply(returnData, responseData as IDataObject[]);
			} else {
				returnData.push(responseData as IDataObject);
			}
		}
		return [this.helpers.returnJsonArray(returnData)];
	}
}