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

export class TikTokProducts implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'TikTok Get Products',
		name: 'tiktokGetProducts',
		icon: 'file:tiktok.png',
		group: ['transform'],
		version: 1,
		description: 'Get TikTok Shop products from showcase',
		defaults: {
			name: 'TikTok Get Products',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'tikTokSession',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Pagination Settings',
				name: 'paginationSettings',
				type: 'collection',
				placeholder: 'Add Setting',
				default: {},
				options: [
					{
						displayName: 'Count',
						name: 'count',
						type: 'number',
						default: 2,
						description: 'Number of products to return',
					},
					{
						displayName: 'Offset',
						name: 'offset',
						type: 'number',
						default: 0,
						description: 'Offset for pagination',
					},
				],
			},
		],
	};

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

		// Get credentials
		const credentials = await this.getCredentials('tikTokSession');
		const sessionData = JSON.parse(credentials.sessionData as string);

		// Extract headers from session data
		const headers = sessionData.headers || {};

		const paginationSettings = this.getNodeParameter('paginationSettings', 0, {}) as any;
		const count = paginationSettings.count || 2;
		const offset = paginationSettings.offset || 0;

		for (let i = 0; i < items.length; i++) {
			try {
				// Use correct TikTok Shop API endpoint (matching dlir2404)
				const requestUrl = 'https://shop.tiktok.com/api/v1/desktop/showcase_product/list';

				const response = await this.helpers.request({
					method: 'GET',
					url: requestUrl,
					qs: {
						count,
						offset,
					},
					headers: {
						...headers,
						'Accept': 'application/json, text/plain, */*',
						'Referer': 'https://www.tiktok.com/',
					},
					json: true,
				});

				returnData.push({ json: response });

			} catch (error: any) {
				if (this.continueOnFail()) {
					returnData.push({
						json: {
							error: error.message,
							statusCode: error.statusCode,
						}
					});
					continue;
				}
				throw error;
			}
		}

		return [returnData];
	}
}