#!/usr/bin/env node
/**
 * TypeScript side of cross-language equivalence validation
 *
 * Reads TGN files and outputs:
 * - Final board state
 * - Territory calculation results
 * - Move count
 *
 * Output format: JSON for easy parsing by comparison script
 */

import { TrigoGame } from "@inc/trigo/game.js";
import { calculateTerritory } from "@inc/trigo/gameUtils.js";
import * as fs from "fs";
import * as path from "path";


interface GameResult {
	tgnFile: string;
	boardShape: { x: number; y: number; z: number };
	moveCount: number;
	board: number[][][];  // 3D array: board[x][y][z] = stone type
	territory: {
		black: number;
		white: number;
		neutral: number;
	};
	error?: string;
}


function processGame(tgnFile: string): GameResult {
	try {
		const tgnContent = fs.readFileSync(tgnFile, "utf-8");

		// Parse TGN
		const game = TrigoGame.fromTGN(tgnContent);

		// Get final state
		const board = game.getBoard();
		const shape = game.getShape();
		const history = game.getHistory();

		// Calculate territory
		const territory = calculateTerritory(board, shape);

		return {
			tgnFile: path.basename(tgnFile),
			boardShape: shape,
			moveCount: history.length,
			board,
			territory: {
				black: territory.black,
				white: territory.white,
				neutral: territory.neutral
			}
		};
	} catch (error) {
		return {
			tgnFile: path.basename(tgnFile),
			boardShape: { x: 0, y: 0, z: 0 },
			moveCount: 0,
			board: [],
			territory: { black: 0, white: 0, neutral: 0 },
			error: error instanceof Error ? error.message : String(error)
		};
	}
}


function main() {
	const args = process.argv.slice(2);

	if (args.length === 0) {
		console.error("Usage: validate_game_equivalence.ts <tgn_file> [<tgn_file> ...]");
		process.exit(1);
	}

	const results: GameResult[] = [];

	for (const tgnFile of args) {
		if (!fs.existsSync(tgnFile)) {
			console.error(`File not found: ${tgnFile}`);
			continue;
		}

		const result = processGame(tgnFile);
		results.push(result);
	}

	// Output as JSON
	console.log(JSON.stringify(results, null, 2));
}


main();