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

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

import {
	convertKitApiRequest,
} from './GenericFunctions';

import {
	customFieldFields,
	customFieldOperations,
} from './CustomFieldDescription';

import {
	formFields,
	formOperations,
} from './FormDescription';

import {
	sequenceFields,
	sequenceOperations,
} from './SequenceDescription';

import {
	tagFields,
	tagOperations,
} from './TagDescription';

import {
	tagSubscriberFields,
	tagSubscriberOperations,
} from './TagSubscriberDescription';

export class ConvertKit implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'ConvertKit',
		name: 'convertKit',
		icon: 'file:convertKit.svg',
		group: ['input'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume ConvertKit API',
		defaults: {
			name: 'ConvertKit',
			color: '#fb6970',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'convertKitApi',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Custom Field',
						value: 'customField',
					},
					{
						name: 'Form',
						value: 'form',
					},
					{
						name: 'Sequence',
						value: 'sequence',
					},
					{
						name: 'Tag',
						value: 'tag',
					},
					{
						name: 'Tag Subscriber',
						value: 'tagSubscriber',
					},
				],
				default: 'form',
				description: 'The resource to operate on.',
			},
			//--------------------
			// Field Description
			//--------------------
			...customFieldOperations,
			...customFieldFields,
			//--------------------
			// FormDescription
			//--------------------
			...formOperations,
			...formFields,
			//--------------------
			// Sequence Description
			//--------------------
			...sequenceOperations,
			...sequenceFields,
			//--------------------
			// Tag Description
			//--------------------
			...tagOperations,
			...tagFields,
			//--------------------
			// Tag Subscriber Description
			//--------------------
			...tagSubscriberOperations,
			...tagSubscriberFields,
		],
	};

	methods = {
		loadOptions: {
			// Get all the tags to display them to user so that he can
			// select them easily
			async getTags(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const { tags } = await convertKitApiRequest.call(this, 'GET', '/tags');
				for (const tag of tags) {
					const tagName = tag.name;
					const tagId = tag.id;
					returnData.push({
						name: tagName,
						value: tagId,
					});
				}

				return returnData;
			},
			// Get all the forms to display them to user so that he can
			// select them easily
			async getForms(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const { forms } = await convertKitApiRequest.call(this, 'GET', '/forms');
				for (const form of forms) {
					const formName = form.name;
					const formId = form.id;
					returnData.push({
						name: formName,
						value: formId,
					});
				}

				return returnData;
			},

			// Get all the sequences to display them to user so that he can
			// select them easily
			async getSequences(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const { courses } = await convertKitApiRequest.call(this, 'GET', '/sequences');
				for (const course of courses) {
					const courseName = course.name;
					const courseId = course.id;
					returnData.push({
						name: courseName,
						value: courseId,
					});
				}

				return returnData;
			},
		},
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: IDataObject[] = [];

		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 < items.length; i++) {

			try {

				if (resource === 'customField') {
					if (operation === 'create') {

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

						responseData = await convertKitApiRequest.call(this, 'POST', '/custom_fields', { label }, qs);
					}
					if (operation === 'delete') {

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

						responseData = await convertKitApiRequest.call(this, 'DELETE', `/custom_fields/${id}`);
					}
					if (operation === 'get') {

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/custom_fields/${id}`);
					}
					if (operation === 'getAll') {

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/custom_fields`);

						responseData = responseData.custom_fields;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
					if (operation === 'update') {

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

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

						responseData = await convertKitApiRequest.call(this, 'PUT', `/custom_fields/${id}`, { label });

						responseData = { success: true };
					}
				}

				if (resource === 'form') {
					if (operation === 'addSubscriber') {

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

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

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

						const body: IDataObject = {
							email,
						};

						if (additionalFields.firstName) {
							body.first_name = additionalFields.firstName as string;
						}

						if (additionalFields.tags) {
							body.tags = additionalFields.tags as string[];
						}

						if (additionalFields.fieldsUi) {
							const fieldValues = (additionalFields.fieldsUi as IDataObject).fieldsValues as IDataObject[];
							if (fieldValues) {
								body.fields = {};
								for (const fieldValue of fieldValues) {
									//@ts-ignore
									body.fields[fieldValue.key] = fieldValue.value;
								}
							}
						}

						const { subscription } = await convertKitApiRequest.call(this, 'POST', `/forms/${formId}/subscribe`, body);

						responseData = subscription;
					}
					if (operation === 'getAll') {

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/forms`);

						responseData = responseData.forms;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
					if (operation === 'getSubscriptions') {

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

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

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

						if (additionalFields.subscriberState) {
							qs.subscriber_state = additionalFields.subscriberState as string;
						}

						responseData = await convertKitApiRequest.call(this, 'GET', `/forms/${formId}/subscriptions`, {}, qs);

						responseData = responseData.subscriptions;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
				}

				if (resource === 'sequence') {
					if (operation === 'addSubscriber') {

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

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

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

						const body: IDataObject = {
							email,
						};

						if (additionalFields.firstName) {
							body.first_name = additionalFields.firstName as string;
						}

						if (additionalFields.tags) {
							body.tags = additionalFields.tags as string[];
						}

						if (additionalFields.fieldsUi) {
							const fieldValues = (additionalFields.fieldsUi as IDataObject).fieldsValues as IDataObject[];
							if (fieldValues) {
								body.fields = {};
								for (const fieldValue of fieldValues) {
									//@ts-ignore
									body.fields[fieldValue.key] = fieldValue.value;
								}
							}
						}

						const { subscription } = await convertKitApiRequest.call(this, 'POST', `/sequences/${sequenceId}/subscribe`, body);

						responseData = subscription;
					}
					if (operation === 'getAll') {

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/sequences`);

						responseData = responseData.courses;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
					if (operation === 'getSubscriptions') {

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

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

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

						if (additionalFields.subscriberState) {
							qs.subscriber_state = additionalFields.subscriberState as string;
						}

						responseData = await convertKitApiRequest.call(this, 'GET', `/sequences/${sequenceId}/subscriptions`, {}, qs);

						responseData = responseData.subscriptions;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
				}

				if (resource === 'tag') {
					if (operation === 'create') {

						const names = ((this.getNodeParameter('name', i) as string).split(',') as string[]).map((e) => ({ name: e }));

						const body: IDataObject = {
							tag: names,
						};

						responseData = await convertKitApiRequest.call(this, 'POST', '/tags', body);
					}

					if (operation === 'getAll') {

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/tags`);

						responseData = responseData.tags;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}
				}

				if (resource === 'tagSubscriber') {

					if (operation === 'add') {

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

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

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

						const body: IDataObject = {
							email,
						};

						if (additionalFields.firstName) {
							body.first_name = additionalFields.firstName as string;
						}

						if (additionalFields.fieldsUi) {
							const fieldValues = (additionalFields.fieldsUi as IDataObject).fieldsValues as IDataObject[];
							if (fieldValues) {
								body.fields = {};
								for (const fieldValue of fieldValues) {
									//@ts-ignore
									body.fields[fieldValue.key] = fieldValue.value;
								}
							}
						}

						const { subscription } = await convertKitApiRequest.call(this, 'POST', `/tags/${tagId}/subscribe`, body);

						responseData = subscription;
					}

					if (operation === 'getAll') {

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

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

						responseData = await convertKitApiRequest.call(this, 'GET', `/tags/${tagId}/subscriptions`);

						responseData = responseData.subscriptions;

						if (!returnAll) {

							const limit = this.getNodeParameter('limit', i) as number;

							responseData = responseData.slice(0, limit);
						}
					}

					if (operation === 'delete') {

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

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

						responseData = await convertKitApiRequest.call(this, 'POST', `/tags/${tagId}>/unsubscribe`, { email });
					}
				}

				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.message });
					continue;
				}
				throw error;
			}
		}

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