// ==UserScript==
// @name		 Transfermarkt to Wikidata QuickStatements
// @namespace	Violentmonkey Scripts
// @version	  1.0
// @description  Import Transfermarkt match data to Wikidata
// @match		https://www.transfermarkt.com/spielbericht/index/spielbericht/*
// @match		https://www.transfermarkt.de/spielbericht/index/spielbericht/*
// @match		https://www.transfermarkt.*/spielbericht/index/spielbericht/*
// @grant		GM_setValue
// @grant		GM_getValue
// @license      CC0
// @author	  -
// ==/UserScript==

(function() {
	'use strict';

	const button = document.createElement('button');
	button.textContent = 'Import to Wikidata';
	button.style.cssText = 'position:fixed;bottom:20px;left:20px;z-index:9999;padding:10px 20px;background:#0645ad;color:white;border:none;border-radius:5px;cursor:pointer;font-size:14px;';
	document.body.appendChild(button);

	button.addEventListener('click', async () => {
    await processMatch();
	});

	async function processMatch() {
		const matchData = extractMatchData();
		const qStatements = await buildQuickStatements(matchData);
		showResultDialog(qStatements);
	}

	function extractMatchData() {
		const url = window.location.href;
		const matchId = url.match(/spielbericht\/(\d+)/)[1];

		const teamElements = document.querySelectorAll('.sb-team');
		const homeTeam = teamElements[0]?.querySelector('.sb-vereinslink')?.textContent.trim();
		const awayTeam = teamElements[1]?.querySelector('.sb-vereinslink')?.textContent.trim();

		const resultText = document.querySelector('.sb-endstand')?.textContent.trim();
		const scoreMatch = resultText?.match(/(\d+):(\d+)/);
		const homeScore = scoreMatch ? parseInt(scoreMatch[1]) : null;
		const awayScore = scoreMatch ? parseInt(scoreMatch[2]) : null;

		let winner = null;
		if (homeScore !== null && awayScore !== null) {
			if (homeScore > awayScore) winner = 'home';
			else if (awayScore > homeScore) winner = 'away';
		}

    const dateTextParentEl = document.getElementsByClassName('sb-datum')[0];
    const dataAs=dateTextParentEl.getElementsByTagName('a');
    const dateEl = dataAs[(dataAs.length>1 ? 1:0)];
    const dateText = dateEl.innerText;
	  const dateMatch = dateText?.match(/(\d{2})\/(\d{2})\/(\d{2})/);
		const pointInTime = dateMatch ? `+20${dateMatch[3]}-${dateMatch[2]}-${dateMatch[1]}T00:00:00Z/11` : null;

		let formattedDate = '';
		if (dateMatch) {
			const months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
			const day = parseInt(dateMatch[1]);
			const month = months[parseInt(dateMatch[2]) - 1];
			const year = `20${dateMatch[3]}`;
			formattedDate = `${day} ${month} ${year}`;
		}

		const stadium = document.querySelector('.sb-zusatzinfos a')?.textContent.trim();

		const competitionLink = document.querySelector('.direct-headline__link');
		const competition = competitionLink?.textContent.trim();

		const countryImg = document.querySelector('.icons-profil img');
		const countryAlt = countryImg?.alt;

		const isCountryMatch = homeTeam?.includes('national') || awayTeam?.includes('national') ||
							 competitionLink?.href?.includes('wettbewerb/WM') ||
							 competitionLink?.href?.includes('wettbewerb/EM');

		const matchLabel = `${homeTeam} vs ${awayTeam}, ${formattedDate}`;

		return {
			matchId,
			homeTeam,
			awayTeam,
			winner,
			pointInTime,
			stadium,
			competition,
			countryAlt,
			isCountryMatch,
			matchLabel
		};
	}

	async function buildQuickStatements(data) {
		const statements = ['CREATE'];

		//statements.push(`LAST\tScommonswiki\tCategory:"${data.matchLabel.replace(/"/g, '\\"')}"`);
		statements.push(`LAST\tLen\t"${data.matchLabel.replace(/"/g, '\\"')}"`);

		const instanceOf = data.isCountryMatch ?'Q12166442':'Q109623729';
		statements.push(`LAST\tP31\t${instanceOf}`);

		const sport = await getQItem('sport', 'Q2736 (association football)');
		if (sport && sport !== 'SKIP') {
			statements.push(`LAST\tP641\t${sport}`);
		}

		const country = await getQItem('country_' + data.countryAlt, `Country for ${data.countryAlt}`);
		if (country && country !== 'SKIP') {
			statements.push(`LAST\tP17\t${country}`);
		}

		if (data.pointInTime) {
			statements.push(`LAST\tP585\t${data.pointInTime}`);
		}

		const stadiumQ = await getQItem('stadium_' + data.stadium, `Stadium: ${data.stadium}`);
		if (stadiumQ && stadiumQ !== 'SKIP') {
			statements.push(`LAST\tP276\t${stadiumQ}`);
		}

		const homeTeamQ = await getQItem('team_' + data.homeTeam, `Home team: ${data.homeTeam}`);
		if (homeTeamQ && homeTeamQ !== 'SKIP') {
			statements.push(`LAST\tP1923\t${homeTeamQ}`);
		}

		const awayTeamQ = await getQItem('team_' + data.awayTeam, `Away team: ${data.awayTeam}`);
		if (awayTeamQ && awayTeamQ !== 'SKIP') {
			statements.push(`LAST\tP1923\t${awayTeamQ}`);
		}

		if (data.winner) {
			const winnerQ = data.winner === 'home' ? homeTeamQ : awayTeamQ;
			if (winnerQ && winnerQ !== 'SKIP') {
				statements.push(`LAST\tP1346\t${winnerQ}`);
			}
		}

		statements.push(`LAST\tP7455\t"${data.matchId}"`);

		const tournamentQ = await getQItem('tournament_' + data.competition, `Tournament: ${data.competition}`, true);
		if (tournamentQ && tournamentQ !== 'SKIP') {
			statements.push(`LAST\tP361\t${tournamentQ}`);
		}

		return statements.join('\n');
	}

	async function getQItem(key, description, allowSkip = false) {
		const stored = GM_getValue(key);
		if (stored) return stored;

		return new Promise((resolve) => {
			const overlay = document.createElement('div');
			overlay.style.cssText = 'position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:10000;';

			const dialog = document.createElement('div');
			dialog.style.cssText = 'position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:white;padding:30px;border-radius:8px;z-index:10001;min-width:400px;box-shadow:0 4px 6px rgba(0,0,0,0.3);';

			const title = document.createElement('h3');
			title.textContent = 'Enter Q-item';
			title.style.marginTop = '0';

			const desc = document.createElement('p');
			desc.textContent = description;
			desc.style.margin = '10px 0';

			const input = document.createElement('input');
			input.type = 'text';
			input.placeholder = 'Q12345';
			input.style.cssText = 'width:100%;padding:8px;margin:10px 0;border:1px solid #ccc;border-radius:4px;font-size:14px;';

			const hint = document.createElement('p');
			hint.style.cssText = 'font-size:12px;color:#666;margin:5px 0;';
			hint.textContent = allowSkip ?
				'Leave empty to skip forever, or type "skip" to skip once' :
				'Type "skip" to skip this value once';

			const btnContainer = document.createElement('div');
			btnContainer.style.cssText = 'margin-top:20px;display:flex;gap:10px;';

			const submitBtn = document.createElement('button');
			submitBtn.textContent = 'Submit';
			submitBtn.style.cssText = 'flex:1;padding:10px;background:#0645ad;color:white;border:none;border-radius:4px;cursor:pointer;font-size:14px;';

			const cancelBtn = document.createElement('button');
			cancelBtn.textContent = 'Cancel';
			cancelBtn.style.cssText = 'flex:1;padding:10px;background:#666;color:white;border:none;border-radius:4px;cursor:pointer;font-size:14px;';

			const cleanup = () => {
				overlay.remove();
				dialog.remove();
			};

			submitBtn.onclick = () => {
				const value = input.value.trim();

				if (value.toLowerCase() === 'skip') {
					cleanup();
					resolve('SKIP');
					return;
				}

				if (value === '' && allowSkip) {
					GM_setValue(key, 'SKIP');
					cleanup();
					resolve('SKIP');
					return;
				}

				if (value.match(/^Q\d+$/)) {
					GM_setValue(key, value);
					cleanup();
					resolve(value);
					return;
				}

				if (value === '') {
					cleanup();
					resolve(null);
					return;
				}

				input.style.borderColor = 'red';
				hint.textContent = 'Invalid Q-item format! Must be like Q12345';
				hint.style.color = 'red';
			};

			cancelBtn.onclick = () => {
				cleanup();
				resolve(null);
			};

			input.onkeypress = (e) => {
				if (e.key === 'Enter') submitBtn.click();
			};

			btnContainer.appendChild(submitBtn);
			btnContainer.appendChild(cancelBtn);

			dialog.appendChild(title);
			dialog.appendChild(desc);
			dialog.appendChild(input);
			dialog.appendChild(hint);
			dialog.appendChild(btnContainer);

			document.body.appendChild(overlay);
			document.body.appendChild(dialog);
			input.focus();
		});
	}

	function showResultDialog(statements) {
		const dialog = document.createElement('div');
		dialog.style.cssText = 'position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:white;padding:20px;border:2px solid #0645ad;border-radius:8px;z-index:10000;max-width:600px;box-shadow:0 4px 6px rgba(0,0,0,0.1);';

		const title = document.createElement('h3');
		title.textContent = 'QuickStatements Output';
		title.style.marginTop = '0';

		const textarea = document.createElement('textarea');
		textarea.value = statements;
		textarea.style.cssText = 'width:100%;height:300px;font-family:monospace;margin:10px 0;';
		textarea.readOnly = true;

		const copyBtn = document.createElement('button');
		copyBtn.textContent = 'Copy to Clipboard';
		copyBtn.style.cssText = 'padding:8px 16px;background:#0645ad;color:white;border:none;border-radius:4px;cursor:pointer;margin-right:10px;';
		copyBtn.onclick = () => {
			textarea.select();
			document.execCommand('copy');
			copyBtn.textContent = 'Copied!';
			setTimeout(() => copyBtn.textContent = 'Copy to Clipboard', 2000);
		};

		const closeBtn = document.createElement('button');
		closeBtn.textContent = 'Close';
		closeBtn.style.cssText = 'padding:8px 16px;background:#666;color:white;border:none;border-radius:4px;cursor:pointer;';
		closeBtn.onclick = () => dialog.remove();

		dialog.appendChild(title);
		dialog.appendChild(textarea);
		dialog.appendChild(copyBtn);
		dialog.appendChild(closeBtn);
		document.body.appendChild(dialog);
	}
})();