import { Property, DropdownOption, createAction } from '@activepieces/pieces-framework';
import { httpClient, HttpMethod, HttpError } from '@activepieces/pieces-common';
import {
	PdfCoSuccessResponse,
	PdfCoErrorResponse,
	PdfCoImageAnnotation,
	PdfCoAddImagesRequestBody,
} from '../common/types';
import { pdfCoAuth } from '../auth';
import { BASE_URL, commonProps } from '../common/props';

// Interface for /barcode/generate request
interface BarcodeGenerateRequestBody {
	value: string;
	type?: string;
	async: boolean;
	inline: boolean; // Must be false to get URL
	name?: string;
	decorationImage?: string;
	profiles?: Record<string, unknown>;
}

// Interface for /barcode/generate success response (when inline=false)
interface BarcodeGenerateSuccessResponse {
	url: string; // URL to the generated barcode image
	error: false;
	status: number;
	name: string;
	duration: number;
	remainingCredits: number;
	credits: number;
}

// Supported Barcode Types
const barcodeTypes: DropdownOption<string>[] = [
	{ label: 'QR Code (Default)', value: 'QRCode' },
	{ label: 'DataMatrix', value: 'DataMatrix' },
	{ label: 'Code 128', value: 'Code128' },
	{ label: 'Code 39', value: 'Code39' },
	{ label: 'PDF417', value: 'PDF417' },
	{ label: 'EAN-13', value: 'EAN13' },
	{ label: 'UPC-A', value: 'UPCA' },
];

export const addBarcodeToPdf = createAction({
	name: 'add_barcode_to_pdf',
	displayName: 'Add Barcode to PDF',
	description: 'Generate a barcode image and add it to a specific location on a PDF.',
	audience: 'both',
	aiMetadata: {
		description:
			'Generates a barcode (QR, DataMatrix, Code 128/39, PDF417, EAN-13, or UPC-A) and stamps it onto a source PDF (referenced by URL) at the given x/y coordinates. Use when an agent needs to embed a scannable code into an existing document. Each call produces a new output PDF file and consumes credits, so it is not idempotent.',
		idempotent: false,
	},
	auth: pdfCoAuth,
	props: {
		sourcePdfUrl: Property.ShortText({
			displayName: 'Source PDF URL',
			description: 'URL of the PDF file to add the barcode to.',
			required: true,
		}),
		barcodeValue: Property.ShortText({
			displayName: 'Barcode Value',
			description: 'The text or data to encode in the barcode.',
			required: true,
		}),
		barcodeType: Property.StaticDropdown({
			displayName: 'Barcode Type',
			description: 'Select the type of barcode to generate.',
			required: true,
			options: { disabled: false, options: barcodeTypes, placeholder: 'Select Barcode Type' },
		}),
		x: Property.Number({
			displayName: 'X Coordinate',
			description: 'X coordinate (from top-left corner) to place the barcode.',
			required: true,
		}),
		y: Property.Number({
			displayName: 'Y Coordinate',
			description: 'Y coordinate (from top-left corner) to place the barcode.',
			required: true,
		}),
		width: Property.Number({
			displayName: 'Width (optional)',
			description:
				'Optional width for the barcode image on the PDF (in points). Aspect ratio is kept by default.',
			required: false,
		}),
		height: Property.Number({
			displayName: 'Height (optional)',
			description:
				'Optional height for the barcode image on the PDF (in points). Aspect ratio is kept by default.',
			required: false,
		}),
		pages: Property.ShortText({
			displayName: 'Pages',
			description:
				'Comma-separated page numbers or ranges to add the barcode (e.g., "0,2,5-10"). Leave empty for all pages.',
			required: false,
		}),
		...commonProps,
	},
	async run(context) {
		const { auth, propsValue } = context;
		const {
			sourcePdfUrl,
			barcodeValue,
			barcodeType,
			x,
			y,
			width,
			height,
			pages,
			fileName,
			pdfPassword,
			httpPassword,
			httpUsername,
			expiration,
		} = propsValue;

		let barcodeImageUrl = '';

		// --- Step 1: Generate Barcode ---
		const generateBarcodeBody: BarcodeGenerateRequestBody = {
			value: barcodeValue,
			type: barcodeType,
			async: false,
			inline: false, // Need the URL
		};

		try {
			const generateResponse = await httpClient.sendRequest<
				BarcodeGenerateSuccessResponse | PdfCoErrorResponse
			>({
				method: HttpMethod.POST,
				url: `${BASE_URL}/barcode/generate`,
				headers: {
					'x-api-key': auth.secret_text,
					'Content-Type': 'application/json',
				},
				body: generateBarcodeBody,
			});

			if (generateResponse.body.error) {
				const errorBody = generateResponse.body as PdfCoErrorResponse;
				throw new Error(
					`PDF.co Barcode Generation Error: Status ${errorBody.status}. ${
						errorBody.message || 'Unknown error.'
					}`,
				);
			}

			barcodeImageUrl = (generateResponse.body as BarcodeGenerateSuccessResponse).url;
			if (!barcodeImageUrl) {
				throw new Error('Failed to get barcode image URL from PDF.co response.');
			}
		} catch (error) {
			if (error instanceof HttpError) {
				const responseBody = error.response?.body as PdfCoErrorResponse | undefined;
				throw new Error(
					`HTTP Error generating barcode: ${error.message}. ${
						responseBody?.message
							? 'Server message: ' + responseBody.message
							: 'Raw response: ' + JSON.stringify(responseBody)
					}`,
				);
			}
			throw error; // Re-throw other errors
		}

		// --- Step 2: Add Barcode Image to PDF ---
		const imageAnnotation: PdfCoImageAnnotation = {
			url: barcodeImageUrl,
			x: x,
			y: y,
			width,
			height,
			pages,
		};

		const addImageBody: PdfCoAddImagesRequestBody = {
			url: sourcePdfUrl,
			images: [imageAnnotation],
			async: false,
			inline: false, // Get final PDF URL
			name: fileName,
			expiration,
			httppassword: httpPassword,
			httpusername: httpUsername,
			password: pdfPassword,
		};

		try {
			const addResponse = await httpClient.sendRequest<PdfCoSuccessResponse | PdfCoErrorResponse>({
				method: HttpMethod.POST,
				url: `${BASE_URL}/pdf/edit/add`,
				headers: {
					'x-api-key': auth.secret_text,
					'Content-Type': 'application/json',
				},
				body: addImageBody,
			});

			if (addResponse.body.error) {
				const errorBody = addResponse.body as PdfCoErrorResponse;
				throw new Error(
					`PDF.co Add Image Error: Status ${errorBody.status}. ${
						errorBody.message || 'Unknown error.'
					}`,
				);
			}

			// Return the successful response containing the final PDF URL
			return addResponse.body as PdfCoSuccessResponse;
		} catch (error) {
			if (error instanceof HttpError) {
				const responseBody = error.response?.body as PdfCoErrorResponse | undefined;
				throw new Error(
					`HTTP Error adding barcode image to PDF: ${error.message}. ${
						responseBody?.message
							? 'Server message: ' + responseBody.message
							: 'Raw response: ' + JSON.stringify(responseBody)
					}`,
				);
			}
			throw error; // Re-throw other errors
		}
	},
});
