import type {
	IDataObject,
	IExecuteFunctions,
	INodeExecutionData,
	INodeProperties,
} from 'n8n-workflow';
import { NodeOperationError } from 'n8n-workflow';

import { recordRLC } from '../../helpers/utils';
import { odooApiRequest } from '../../transport';
import { updateDisplayOptions } from '../../../../../utils/utilities';

const properties: INodeProperties[] = [
	{
		displayName: 'Linked Document Model',
		name: 'res_model',
		type: 'resourceLocator',
		default: { mode: 'list', value: '' },
		required: true,
		description: 'The Odoo model of the document to attach the activity to',
		modes: [
			{
				displayName: 'From List',
				name: 'list',
				type: 'list',
				typeOptions: { searchListMethod: 'searchModels', searchable: true },
			},
			{
				displayName: 'By Name',
				name: 'id',
				type: 'string',
				placeholder: 'e.g. res.partner',
				validation: [
					{
						type: 'regex',
						properties: { regex: '[a-z][a-z0-9_.]*', errorMessage: 'Not a valid Odoo model name' },
					},
				],
			},
		],
	},
	{
		...recordRLC(
			'Linked Document',
			'res_id',
			'searchModelRecords',
			'Record to attach the activity to',
		),
		typeOptions: { loadOptionsDependsOn: ['res_model.value'] },
	},
	recordRLC(
		'Activity Type',
		'activity_type_id',
		'searchActivityTypes',
		'Type of activity to schedule',
	),
	{
		displayName: 'Additional Fields',
		name: 'additionalFields',
		type: 'resourceMapper',
		default: { mappingMode: 'defineBelow', value: null },
		noDataExpression: true,
		typeOptions: {
			loadOptionsDependsOn: ['resource', 'operation'],
			resourceMapper: {
				resourceMapperMethod: 'getActivityFields',
				mode: 'add',
				fieldWords: { singular: 'field', plural: 'fields' },
				addAllFields: false,
			},
		},
	},
];

const displayOptions = {
	show: { resource: ['activity'], operation: ['create'] },
};

export const description = updateDisplayOptions(displayOptions, properties);

export async function execute(
	this: IExecuteFunctions,
	items: INodeExecutionData[],
): Promise<INodeExecutionData[]> {
	const returnData: INodeExecutionData[] = [];

	for (let i = 0; i < items.length; i++) {
		try {
			const res_model = this.getNodeParameter('res_model', i, undefined, {
				extractValue: true,
			}) as string;
			const res_id = Number(
				this.getNodeParameter('res_id', i, undefined, {
					extractValue: true,
				}),
			);
			const activity_type_id = Number(
				this.getNodeParameter('activity_type_id', i, undefined, {
					extractValue: true,
				}),
			);

			const mappingMode = this.getNodeParameter('additionalFields.mappingMode', i) as string;
			let additionalFlat: IDataObject;
			if (mappingMode === 'autoMapInputData') {
				additionalFlat = items[i].json;
			} else {
				additionalFlat = this.getNodeParameter('additionalFields.value', i, {}) as IDataObject;
			}

			// mail.activity.res_model_id is a Many2one to ir.model (res_model is computed from it).
			// The external API ignores res_model (char) — we must send res_model_id (integer).
			const modelRecords = (await odooApiRequest.call(this, 'ir.model', 'search_read', {
				domain: [['model', '=', res_model]],
				fields: ['id'],
				limit: 1,
				offset: 0,
			})) as Array<{ id: number }>;
			const res_model_id = modelRecords[0]?.id;
			if (res_model_id === undefined) {
				throw new NodeOperationError(
					this.getNode(),
					`Linked document model "${res_model}" was not found`,
					{
						itemIndex: i,
					},
				);
			}

			// Explicit RLC fields take precedence over anything set via the RMC
			const fields: IDataObject = { ...additionalFlat, res_model_id, res_id, activity_type_id };

			const result = (await odooApiRequest.call(this, 'mail.activity', 'create', {
				vals_list: [fields],
			})) as unknown as number | number[];
			const id = Array.isArray(result) ? result[0] : result;

			const executionData = this.helpers.constructExecutionMetaData(
				this.helpers.returnJsonArray({ id }),
				{ itemData: { item: i } },
			);
			returnData.push(...executionData);
		} catch (error) {
			if (this.continueOnFail()) {
				const executionData = this.helpers.constructExecutionMetaData(
					this.helpers.returnJsonArray({ error: error.message }),
					{ itemData: { item: i } },
				);
				returnData.push(...executionData);
				continue;
			}
			throw error;
		}
	}

	return returnData;
}