import {
	IExecuteFunctions
} from 'n8n-core';

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

import {
	couponFields,
	couponOperations,
} from './CouponDescription';

import {
	paddleApiRequest,
	paddleApiRequestAllItems,
	validateJSON
} from './GenericFunctions';

import {
	paymentFields,
	paymentOperations,
} from './PaymentDescription';

import {
	planFields,
	planOperations,
} from './PlanDescription';

import {
	productFields,
	productOperations,
} from './ProductDescription';

import {
	userFields,
	userOperations,
} from './UserDescription';

// import {
// 	orderOperations,
// 	orderFields,
// } from './OrderDescription';

import * as moment from 'moment';

export class Paddle implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'Paddle',
		name: 'paddle',
		icon: 'file:paddle.png',
		group: ['output'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume Paddle API',
		defaults: {
			name: 'Paddle',
			color: '#45567c',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'paddleApi',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Coupon',
						value: 'coupon',
					},
					{
						name: 'Payment',
						value: 'payment',
					},
					{
						name: 'Plan',
						value: 'plan',
					},
					{
						name: 'Product',
						value: 'product',
					},
					// {
					// 	name: 'Order',
					// 	value: 'order',
					// },
					{
						name: 'User',
						value: 'user',
					},
				],
				default: 'coupon',
				description: 'Resource to consume.',
			},
			// COUPON
			...couponOperations,
			...couponFields,
			// PAYMENT
			...paymentOperations,
			...paymentFields,
			// PLAN
			...planOperations,
			...planFields,
			// PRODUCT
			...productOperations,
			...productFields,
			// ORDER
			// ...orderOperations,
			// ...orderFields,
			// USER
			...userOperations,
			...userFields,
		],
	};

	methods = {
		loadOptions: {
			/* -------------------------------------------------------------------------- */
			/*                                 PAYMENT                                    */
			/* -------------------------------------------------------------------------- */

			// Get all payment so they can be selected in payment rescheduling
			async getPayments(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const endpoint = '/2.0/subscription/payments';
				const paymentResponse = await paddleApiRequest.call(this, endpoint, 'POST', {});

				// Alert user if there's no payments present to be loaded into payments property
				if (paymentResponse.response === undefined || paymentResponse.response.length === 0) {
					throw new NodeApiError(this.getNode(), paymentResponse, { message: 'No payments on account.' });
				}

				for (const payment of paymentResponse.response) {
					const id = payment.id;
					returnData.push({
						name: id,
						value: id,
					});
				}
				return returnData;
			},

			/* -------------------------------------------------------------------------- */
			/*                                 PRODUCTS                                   */
			/* -------------------------------------------------------------------------- */

			// Get all Products so they can be selected in coupon creation when assigning products
			async getProducts(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const endpoint = '/2.0/product/get_products';
				const products = await paddleApiRequest.call(this, endpoint, 'POST', {});

				// Alert user if there's no products present to be loaded into payments property
				if (products.length === 0) {
					throw new NodeOperationError(this.getNode(), 'No products on account.');
				}

				for (const product of products) {
					const name = product.name;
					const id = product.id;
					returnData.push({
						name,
						value: id,
					});
				}
				return returnData;
			},
		},
	};

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

						if (jsonParameters) {
							const additionalFieldsJson = this.getNodeParameter('additionalFieldsJson', i) as string;

							if (additionalFieldsJson !== '') {
								if (validateJSON(additionalFieldsJson) !== undefined) {
									Object.assign(body, JSON.parse(additionalFieldsJson));
								} else {
									throw new NodeOperationError(this.getNode(), 'Additional fields must be a valid JSON');
								}
							}

						} else {
							const discountType = this.getNodeParameter('discountType', i) as string;
							const couponType = this.getNodeParameter('couponType', i) as string;
							const discountAmount = this.getNodeParameter('discountAmount', i) as number;

							if (couponType === 'product') {
								body.product_ids = this.getNodeParameter('productIds', i) as string;
							}

							if (discountType === 'flat') {
								body.currency = this.getNodeParameter('currency', i) as string;
							}

							body.coupon_type = couponType;
							body.discount_type = discountType;
							body.discount_amount = discountAmount;

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

							if (additionalFields.allowedUses) {
								body.allowed_uses = additionalFields.allowedUses as number;
							}
							if (additionalFields.couponCode) {
								body.coupon_code = additionalFields.couponCode as string;
							}
							if (additionalFields.couponPrefix) {
								body.coupon_prefix = additionalFields.couponPrefix as string;
							}
							if (additionalFields.expires) {
								body.expires = moment(additionalFields.expires as Date).format('YYYY-MM-DD') as string;
							}
							if (additionalFields.group) {
								body.group = additionalFields.group as string;
							}
							if (additionalFields.recurring) {
								body.recurring = 1;
							} else {
								body.recurring = 0;
							}
							if (additionalFields.numberOfCoupons) {
								body.num_coupons = additionalFields.numberOfCoupons as number;
							}
							if (additionalFields.description) {
								body.description = additionalFields.description as string;
							}

							const endpoint = '/2.1/product/create_coupon';

							responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);
							responseData = responseData.response.coupon_codes.map((coupon : string) => ({coupon}));
						}
					}

					if (operation === 'getAll') {
						const productId = this.getNodeParameter('productId', i) as string;
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;
						const endpoint = '/2.0/product/list_coupons';

						body.product_id = productId as string;

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);

						if (returnAll) {
							responseData = responseData.response;
						} else {
							const limit = this.getNodeParameter('limit', i) as number;
							responseData = responseData.response.splice(0, limit);
						}
					}

					if (operation === 'update') {

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

						if (jsonParameters) {
							const additionalFieldsJson = this.getNodeParameter('additionalFieldsJson', i) as string;

							if (additionalFieldsJson !== '') {
								if (validateJSON(additionalFieldsJson) !== undefined) {
									Object.assign(body, JSON.parse(additionalFieldsJson));
								} else {
									throw new NodeOperationError(this.getNode(), 'Additional fields must be a valid JSON');
								}
							}

						} else {
							const updateBy = this.getNodeParameter('updateBy', i) as string;

							if (updateBy === 'group') {
								body.group = this.getNodeParameter('group', i) as string;
							} else {
								body.coupon_code = this.getNodeParameter('couponCode', i) as string;
							}

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

							if (additionalFields.allowedUses) {
								body.allowed_uses = additionalFields.allowedUses as number;
							}
							if (additionalFields.currency) {
								body.currency = additionalFields.currency as string;
							}
							if (additionalFields.newCouponCode) {
								body.new_coupon_code = additionalFields.newCouponCode as string;
							}
							if (additionalFields.expires) {
								body.expires = moment(additionalFields.expires as Date).format('YYYY-MM-DD') as string;
							}
							if (additionalFields.newGroup) {
								body.new_group = additionalFields.newGroup as string;
							}
							if (additionalFields.recurring === true) {
								body.recurring = 1;
							} else if (additionalFields.recurring === false) {
								body.recurring = 0;
							}
							if (additionalFields.productIds) {
								body.product_ids = additionalFields.productIds as number;
							}
							if (additionalFields.discountAmount) {
								body.discount_amount = additionalFields.discountAmount as number;
							}
							if (additionalFields.discount) {
								//@ts-ignore
								if (additionalFields.discount.discountProperties.discountType === 'percentage') {
									// @ts-ignore
									body.discount_amount = additionalFields.discount.discountProperties.discountAmount as number;
								} else {
									//@ts-ignore
									body.currency = additionalFields.discount.discountProperties.currency as string;
									//@ts-ignore
									body.discount_amount = additionalFields.discount.discountProperties.discountAmount as number;
								}
							}
						}

						const endpoint = '/2.1/product/update_coupon';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);
						responseData = responseData.response;
					}
				}
				if (resource === 'payment') {
					if (operation === 'getAll') {
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;
						const jsonParameters = this.getNodeParameter('jsonParameters', i) as boolean;

						if (jsonParameters) {
							const additionalFieldsJson = this.getNodeParameter('additionalFieldsJson', i) as string;

							if (additionalFieldsJson !== '') {
								if (validateJSON(additionalFieldsJson) !== undefined) {
									Object.assign(body, JSON.parse(additionalFieldsJson));
								} else {
									throw new NodeOperationError(this.getNode(), 'Additional fields must be a valid JSON');
								}
							}

						} else {
							const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;

							if (additionalFields.subscriptionId) {
								body.subscription_id = additionalFields.subscriptionId as number;
							}
							if (additionalFields.plan) {
								body.plan = additionalFields.plan as string;
							}
							if (additionalFields.state) {
								body.state = additionalFields.state as string;
							}
							if (additionalFields.isPaid) {
								body.is_paid = 1;
							} else {
								body.is_paid = 0;
							}
							if (additionalFields.from) {
								body.from = moment(additionalFields.from as Date).format('YYYY-MM-DD') as string;
							}
							if (additionalFields.to) {
								body.to = moment(additionalFields.to as Date).format('YYYY-MM-DD') as string;
							}
							if (additionalFields.isOneOffCharge) {
								body.is_one_off_charge = additionalFields.isOneOffCharge as boolean;
							}
						}
						const endpoint = '/2.0/subscription/payments';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);

						if (returnAll) {
							responseData = responseData.response;
						} else {
							const limit = this.getNodeParameter('limit', i) as number;
							responseData = responseData.response.splice(0, limit);
						}
					}
					if (operation === 'reschedule') {
						const paymentId = this.getNodeParameter('paymentId', i) as number;
						const date = this.getNodeParameter('date', i) as Date;

						body.payment_id = paymentId;
						body.date = body.to = moment(date as Date).format('YYYY-MM-DD') as string;

						const endpoint = '/2.0/subscription/payments_reschedule';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);
					}
				}
				if (resource === 'plan') {
					if (operation === 'getAll') {
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;
						const endpoint = '/2.0/subscription/plans';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);

						if (returnAll) {
							responseData = responseData.response;
						} else {
							const limit = this.getNodeParameter('limit', i) as number;
							responseData = responseData.response.splice(0, limit);
						}
					}
					if (operation === 'get') {
						const planId = this.getNodeParameter('planId', i) as string;

						body.plan = planId;

						const endpoint = '/2.0/subscription/plans';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);
						responseData = responseData.response;
					}
				}
				if (resource === 'product') {
					if (operation === 'getAll') {
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;
						const endpoint = '/2.0/product/get_products';

						responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);

						if (returnAll) {
							responseData = responseData.response.products;
						} else {
							const limit = this.getNodeParameter('limit', i) as number;
							responseData = responseData.response.products.splice(0, limit);
						}
					}
				}
				if (resource === 'order') {
					if (operation === 'get') {
						const endpoint = '/1.0/order';
						const checkoutId = this.getNodeParameter('checkoutId', i) as string;

						body.checkout_id = checkoutId;

						responseData = await paddleApiRequest.call(this, endpoint, 'GET', body);
					}
				}
				if (resource === 'user') {
					if (operation === 'getAll') {
						const returnAll = this.getNodeParameter('returnAll', i) as boolean;

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

						if (jsonParameters) {
							const additionalFieldsJson = this.getNodeParameter('additionalFieldsJson', i) as string;

							if (additionalFieldsJson !== '') {
								if (validateJSON(additionalFieldsJson) !== undefined) {
									Object.assign(body, JSON.parse(additionalFieldsJson));
								} else {
									throw new NodeOperationError(this.getNode(), 'Additional fields must be a valid JSON');
								}
							}

						} else {

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

							if (additionalFields.state) {
								body.state = additionalFields.state as string;
							}
							if (additionalFields.planId) {
								body.plan_id = additionalFields.planId as string;
							}
							if (additionalFields.subscriptionId) {
								body.subscription_id = additionalFields.subscriptionId as string;
							}
						}

						const endpoint = '/2.0/subscription/users';

						if (returnAll) {
							responseData = await paddleApiRequestAllItems.call(this, 'response', endpoint, 'POST', body);
						} else {
							body.results_per_page = this.getNodeParameter('limit', i) as number;
							responseData = await paddleApiRequest.call(this, endpoint, 'POST', body);
							responseData = responseData.response;
						}
					}
				}
			} catch (error) {
				if (this.continueOnFail()) {
					returnData.push({ error: error.message });
					continue;
				}
				throw error;
			}
			if (Array.isArray(responseData)) {
				returnData.push.apply(returnData, responseData as IDataObject[]);
			} else {
				returnData.push(responseData as unknown as IDataObject);
			}
		}
		return [this.helpers.returnJsonArray(returnData)];
	}
}