<?php

include "include.php";

try {
	// === LOAD SCORE FILE ===
	$teamQuestionDates = loadScoreFile();
	
	// === GENERATE GRAPH DATA ===
	$period = new DatePeriod(new DateTime("2022-11-01"),
	                         new DateInterval("P1D"),
	                         new DateTime());
	
	$labels = [];
	foreach ($period as $date) {
		$labels[] = $date->format("m-d");
	}
	
	$datasets = [];
	foreach (TEAMS as $team) {
		$dataset = ['label' => $team, 'data' => [], 'borderColor' => TEAM_COLORS[$team]];
		
		$questionDates = $teamQuestionDates[$team];
		$questions = array_keys($questionDates);
		
		$score = 0;
		$i = 0;
		
		foreach ($period as $date) {
			while ($i < count($questionDates) && $questionDates[$questions[$i]] <= $date->format("Y-m-d")) {
				$score += QUESTION_POINTS[$questions[$i]];
				$i++;
			}
			$dataset['data'][] = $score;
		}
		
		$datasets[] = $dataset;
	}
	
	echo json_encode(['labels' => $labels, 'datasets' => $datasets]);
} catch (Exception $e) {
	echo json_encode(['error' => $e->getMessage()]);
}

?>