// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import axios from 'axios';
import { Cookies } from 'react-cookie';
import cookie from 'cookie';
import moment from 'moment';
import jwt from 'jsonwebtoken';
import { cors } from '../../../lib/cors';
import { inspect } from 'util';
import fs from 'fs';
import { PDFDocument } from 'pdf-lib';
import fontkit from '@pdf-lib/fontkit';

const fields = {
	main: {
		title: { name: "main_title", type: "text", bind: null, }, 
		inn: { name: "main_inn", type: "text", bind: null, }, 
		kpp: { name: "main_kpp", type: "text", bind: null, }, 
		email: { name: "main_email", type: "text", bind: null, }, 
		telephone: { name: "main_telephone", type: "text", bind: null, }, 
		websiteurl: { name: "main_website", type: "text", bind: null, }, 
		financial_loan: { name: "main_financial_loan", type: "text", bind: null, }, 

		individual_executive_oop: { name: "ruler_title", type: "text", bind: null }, 
		individual_executive_inn: { name: "ruler_inn", type: "text", bind: null }, 
		individual_executive_kpp: { name: "ruler_kpp", type: "text", bind: null }, 
		individual_executive_docnum: { name: "ruler_docnum", type: "text", bind: null }, 
		individual_executive_docdate: { name: "ruler_docdate", type: "text", bind: null, date: true }, 

		high_level: { name: "execution_high", type: "text", bind: null, size: 6 }, 
		board_of_directors: { name: "execution_counsil", type: "text", bind: null, size: 6 }, 
		collective_executive: { name: "execution_team", type: "text", bind: null, size: 6 }, 
		individual_executive: { name: "execution_sole", type: "text", bind: null, size: 6 }, 
		other_control: { name: "execution_another", type: "text", bind: null, size: 6 }, 
	}, 
	contacts: {
		address_type: { name: "address_type", type: "radio", bind: null }, 
		fact_address: { name: "address_fact", type: "text", bind: null }, 
		postal_address: { name: "address_postal", type: "text", bind: null }, 
	}, 
	head_person: {
		fullname: { name: "head_fullname", type: "text", bind: null }, 
		jobtitle: { name: "head_jobtitle", type: "text", bind: null }, 
		evo_assignment_date: { name: "head_date", type: "text", bind: null, date: true }, 
		evo_credentials_dateend: { name: "head_dateend", type: "text", bind: null, date: true }, 
		evo_indefinite: { name: "head_date_infinite", type: "checkbox", bind: null }, 
		telephone: { name: "head_phone", type: "text", bind: null }, 
		email: { name: "head_email", type: "text", bind: null }, 
	}, 
	signatory_person: {
		fullname: { name: "signer_fullname", type: "text", bind: null }, 
		jobtitle: { name: "signer_jobtitle", type: "text", bind: null }, 
		signer_rule_basis: { name: "signer_reason", type: "text", bind: null }, 
		docdate: { name: "signer_docdate", type: "text", bind: null, date: true }, 
		docnumber: { name: "signer_docnum", type: "text", bind: null }, 
		telephone: { name: "signer_phone", type: "text", bind: null }, 
		email: { name: "signer_email", type: "text", bind: null }, 
	}, 
	founded_persons: 
	[
		{
			fullname: { name: "shareholder_1_fullname", type: "text", bind: null, size: 6 }, 
			personal: { name: "shareholder_1_personal", type: "text", bind: null, size: 6 }, 
			registration: { name: "shareholder_1_registration", type: "text", bind: null, size: 6 }, 
			founder_part: { name: "shareholder_1_part", type: "text", bind: null, size: 6 }, 
			is_beneficial: { name: "shareholder_1_ben", type: "radio", bind: null }, 
		}, 
		{
			fullname: { name: "shareholder_2_fullname", type: "text", bind: null, size: 6 }, 
			personal: { name: "shareholder_2_personal", type: "text", bind: null, size: 6 }, 
			registration: { name: "shareholder_2_registration", type: "text", bind: null, size: 6 }, 
			founder_part: { name: "shareholder_2_part", type: "text", bind: null, size: 6 }, 
			is_beneficial: { name: "shareholder_2_ben", type: "radio", bind: null, size: 6 }, 
		}, 
		{
			fullname: { name: "shareholder_3_fullname", type: "text", bind: null, size: 6 }, 
			personal: { name: "shareholder_3_personal", type: "text", bind: null, size: 6 }, 
			registration: { name: "shareholder_3_registration", type: "text", bind: null, size: 6 }, 
			founder_part: { name: "shareholder_3_part", type: "text", bind: null, size: 6 }, 
			is_beneficial: { name: "shareholder_3_ben", type: "radio", bind: null }, 
		}, 
		{
			fullname: { name: "shareholder_4_fullname", type: "text", bind: null, size: 6 }, 
			personal: { name: "shareholder_4_personal", type: "text", bind: null, size: 6 }, 
			registration: { name: "shareholder_4_registration", type: "text", bind: null, size: 6 }, 
			founder_part: { name: "shareholder_4_part", type: "text", bind: null, size: 6 }, 
			is_beneficial: { name: "shareholder_4_ben", type: "radio", bind: null }, 
		}, 
	], 
	non_profit: {
		fin_source_business: { name: "nko_revenue", type: "checkbox", bind: null }, 
		fin_source_donate: { name: "nko_donation", type: "checkbox", bind: null }, 
		fin_source_fees: { name: "nko_members", type: "checkbox", bind: null }, 
		fin_source_another: { name: "nko_another", type: "checkbox", bind: null }, 
		fin_source_another_description: { name: "nko_another_description", type: "text", bind: null, size: 6 }, 
		foreign_payers: { name: "external", type: "radio", bind: null }, 
		fin_goals_cars: { name: "nko_object_cars", type: "text", bind: null, size: 6 }, 
		fin_goals_trucks: { name: "nko_object_trucks", type: "text", bind: null, size: 6 }, 
		fin_goals_special: { name: "nko_object_special", type: "text", bind: null, size: 6 }, 
	}, 
};

function good(value)
{
	if(value !== undefined && value !== null && value !== "")
	{
		return true;
	}

	return false;
}

export default async function handler(req, res) 
{
	console.log("API", "questionnaire", "get");
	console.log(req.body);
	console.log("-".repeat(50));
	const { questionnaire } = req.body;

	await cors(req, res);

	if(req.headers.cookie !== undefined)
	{
		const cookies = cookie.parse(req.headers?.cookie ? req.headers?.cookie : "");

		if(cookies.jwt !== undefined && cookies.jwt !== null)
		{
			var client_jwt_decoded = jwt.verify(cookies.jwt, process.env.JWT_SECRET_CLIENT);
			var crm_jwt = jwt.sign({ acc_number: client_jwt_decoded.acc_number }, process.env.JWT_SECRET_CRM, { noTimestamp: true });

			console.log("API", "download", "__dirname", __dirname);
			const formPdfBytes = fs.readFileSync(`${ __dirname }/../../../../../lib/evo_anketa.pdf`);
			const fontBytes = fs.readFileSync(`${ __dirname }/../../../../../lib/roboto.ttf`);

			const pdfDoc = await PDFDocument.load(formPdfBytes);
			pdfDoc.registerFontkit(fontkit);
			const formFont = await pdfDoc.embedFont(fontBytes);
		
			// Embed the Mario and emblem images
		
			// Get the form containing all the fields
			const form = pdfDoc.getForm();
			//form.registerFontkit(fontkit);
		
			for(let group in fields)
			{
				if(group === "founded_persons")
				{
					for(let p in questionnaire[group])
					{
						for(let field in fields[group][p])
						{
							if(field === "fullname")
							{
								fields[group][p][field].bind = form.getTextField(fields[group][p][field].name);
								if(fields[group][p][field].size !== undefined) { fields[group][p][field].bind.setFontSize(fields[group][p][field].size); }
								fields[group][p][field].bind.setText(`${ questionnaire[group][p].lastname.toUpperCase() } ${ questionnaire[group][p].firstname.toUpperCase() }${ good(questionnaire[group][p].middlename) ? ` ${ questionnaire[group][p].middlename.toUpperCase() }` : "" }`);
							}
							else if(field === "personal")
							{
								const { citizenship, doctype, seria, docnumber, icode, issueby, issuedate, } = questionnaire[group][p].identity_document;
								fields[group][p][field].bind = form.getTextField(fields[group][p][field].name);
								if(fields[group][p][field].size !== undefined) { fields[group][p][field].bind.setFontSize(fields[group][p][field].size); }
								fields[group][p][field].bind.setText(`Гражданство: ${ citizenship.title }, паспорт ${ seria } ${ docnumber }, выдан \n${ issueby }, ${ icode } ${ moment(issuedate).format("DD.MM.YYYY") }`.toUpperCase());
							}
							else if(field === "registration")
							{
								const { registration_address, } = questionnaire[group][p].identity_document;
								if(good(registration_address.title))
								{
									fields[group][p][field].bind = form.getTextField(fields[group][p][field].name);
									if(fields[group][p][field].size !== undefined) { fields[group][p][field].bind.setFontSize(fields[group][p][field].size); }
									fields[group][p][field].bind.setText(registration_address.title.toUpperCase());
								}
							}
							else
							{
								if(fields[group][p][field].type === "checkbox")
								{
									if(questionnaire[group][p][field])
									{
										fields[group][p][field].bind = form.getCheckBox(fields[group][p][field].name);
										fields[group][p][field].bind.check();
									}
								}
								else if(fields[group][p][field].type === "radio")
								{
									if(questionnaire[group][p][field] !== undefined)
									{
										fields[group][p][field].bind = form.getRadioGroup(fields[group][p][field].name);
										let options = fields[group][p][field].bind.getOptions();

										if(questionnaire[group][p][field])
										{
											fields[group][p][field].bind.select("yes");
										}
										else
										{
											fields[group][p][field].bind.select("no");
										}
									}
								}
								else
								{
									if(good(questionnaire[group][p][field]))
									{
										fields[group][p][field].bind = form.getTextField(fields[group][p][field].name);
										if(fields[group][p][field].size !== undefined) { fields[group][p][field].bind.setFontSize(fields[group][p][field].size); }
										fields[group][p][field].bind.setText(questionnaire[group][p][field]);
									}
								}
							}
						}
					}
					continue;
				}
				else
				{
					for(let field in fields[group])
					{
						if(field === "fullname")
						{
							fields[group][field].bind = form.getTextField(fields[group][field].name);
							if(fields[group][field].size !== undefined) { fields[group][field].bind.setFontSize(fields[group][field].size); }
							fields[group][field].bind.setText(`${ questionnaire[group].lastname.toUpperCase() } ${ questionnaire[group].firstname.toUpperCase() }${ good(questionnaire[group].middlename) ? ` ${ questionnaire[group].middlename.toUpperCase() }` : "" }`);
						}
						else if(field === "postal_address")
						{
							if(good(questionnaire[group].postal_address.name))
							{
								fields[group][field].bind = form.getTextField(fields[group][field].name);
								if(fields[group][field].size !== undefined) { fields[group][field].bind.setFontSize(fields[group][field].size); }
								fields[group][field].bind.setText(questionnaire[group].postal_address.name.toUpperCase());
							}
						}
						else if(field === "fact_address")
						{
							if(good(questionnaire[group].fact_address.name))
							{
								fields[group][field].bind = form.getTextField(fields[group][field].name);
								if(fields[group][field].size !== undefined) { fields[group][field].bind.setFontSize(fields[group][field].size); }
								fields[group][field].bind.setText(questionnaire[group].fact_address.name.toUpperCase());
							}
						}
						else if(field === "address_type")
						{
							fields[group][field].bind = form.getRadioGroup(fields[group][field].name);
							fields[group][field].bind.select(questionnaire[group].address_type);
						}
						/*
						else if(field === "foreign_payers")
						{
							pdf_params[fields[group][field]] = questionnaire[group].foreign_payers ? 0 : 1;
						}
						*/
						else
						{
							if(fields[group][field].type === "checkbox")
							{
								if(questionnaire[group][field])
								{
									fields[group][field].bind = form.getCheckBox(fields[group][field].name);
									fields[group][field].bind.check();
								}
							}
							else if(fields[group][field].type === "radio")
							{
								if(questionnaire[group][field] !== undefined)
								{
									fields[group][field].bind = form.getRadioGroup(fields[group][field].name);
									
									if(questionnaire[group][field])
									{
										fields[group][field].bind.select("yes");
									}
									else
									{
										fields[group][field].bind.select("no");
									}
								}
							}
							else
							{
								if(good(questionnaire[group][field]))
								{
									fields[group][field].bind = form.getTextField(fields[group][field].name);
									if(fields[group][field].size !== undefined) { fields[group][field].bind.setFontSize(fields[group][field].size); }
									if(fields[group][field].date)
									{
										fields[group][field].bind.setText(moment(questionnaire[group][field]).format("DD.MM.YYYY"));
									}
									else
									{
										fields[group][field].bind.setText(questionnaire[group][field].toUpperCase());
									}
								}
							}
						}
					}	
				}
			}

			form.updateFieldAppearances(formFont);

			const pdfBytes = await pdfDoc.save();
			//responseType: 'blob', 
			//fs.writeFileSync(`${ __dirname }/../../../../../uploads/${ client_jwt_decoded.acc_number }_anketa.pdf`, pdfBytes);
			//res.setHeader('Content-Type', 'application/pdf');
			//res.send(pdfBytes);
			console.log("pdfBytes.size", pdfBytes, pdfBytes.byteLength);
			res.setHeader("filename", `${ client_jwt_decoded.acc_number }_anketa.pdf`);
			res.setHeader('Content-Type', 'application/pdf');
			res.send(Buffer.from(pdfBytes));

			//res.setHeader('Content-Type', 'application/pdf');
			//res.status(200).send(pdfBytes);
		}
		else
		{
			res.status(403).send();
		}
	}
}