package net.gepafin.tendermanagement.util;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.html.simpleparser.HTMLWorker;
import com.itextpdf.text.html.simpleparser.StyleSheet;
import com.itextpdf.text.Paragraph;

import java.io.StringReader;
import java.util.List;

import org.springframework.stereotype.Component;

@Component
public class PdfUtils {
	
	

	public static PdfPCell htmlToPdfPCell(String htmlContent, Font font) {
	    PdfPCell cell = new PdfPCell();

	    // Check if the content is not null or empty
	    if (htmlContent != null && !htmlContent.trim().isEmpty()) {
	        // Wrap plain text in a paragraph tag if it doesn't contain any HTML
	        // Check if the string does not contain any '<' or '>' characters
	        if (!htmlContent.contains("<") || !htmlContent.contains(">")) {
	            htmlContent = "<p>" + htmlContent + "</p>"; // Wrap in paragraph tags
	        }

	        try {
	            // Create a list to hold the elements parsed from the HTML
	            List<Element> elements = HTMLWorker.parseToList(new StringReader(htmlContent), new StyleSheet());

	            // Create a paragraph to hold the formatted text
	            Paragraph paragraph = new Paragraph();

	            // Add each element to the paragraph
	            for (Element element : elements) {
	                // If the element is a Paragraph, set the font directly
	                if (element instanceof Paragraph) {
	                    ((Paragraph) element).setFont(font);
	                } 
	                // If the element is a Chunk, set the font directly
	                else if (element instanceof com.itextpdf.text.Chunk) {
	                    ((com.itextpdf.text.Chunk) element).setFont(font);
	                }
	                // Add the element to the paragraph
	                paragraph.add(element);
	            }

	            // Add the paragraph to the cell
	            cell.addElement(paragraph);

	        } catch (Exception e) {
	            e.printStackTrace(); // Log the exception for debugging
	        }
	    }

	    return cell;
	}

	public static Object extractRows(Object content) throws Exception {
		ObjectMapper objectMapper = new ObjectMapper();
		JsonNode rootNode;

		// Check if input is already a JSON tree (Object) or a String
		if (content instanceof String) {
			rootNode = objectMapper.readTree((String) content);
		} else {
			rootNode = objectMapper.valueToTree(content);
		}

		// Extract "rows" dynamically
		JsonNode rowsArray = rootNode.get("rows");

		// Convert to a generic List
		return objectMapper.convertValue(rowsArray, List.class);
	}

}