<?php

// Analyze coverage gaps from clover XML
$xml = simplexml_load_file(__DIR__.'/../tests/.coverage/clover.xml');
$gap1 = [];
$gap2 = [];

foreach ($xml->project->package as $pkg) {
    foreach ($pkg->file as $file) {
        foreach ($file->class as $class) {
            $m = $class->metrics;
            $methods = (int) $m['methods'];
            $covered = (int) $m['coveredmethods'];
            if ($methods == 0) {
                continue;
            }
            $uncov = $methods - $covered;
            $lines = (int) $m['statements'];
            $covLines = (int) $m['coveredstatements'];
            $uncovLines = $lines - $covLines;

            $entry = [
                'class' => (string) $class['name'],
                'file' => (string) $file['name'],
                'methods' => $methods,
                'covered_methods' => $covered,
                'uncov_lines' => $uncovLines,
            ];

            if ($uncov == 1) {
                $gap1[] = $entry;
            } elseif ($uncov == 2) {
                $gap2[] = $entry;
            }
        }
    }
}

usort($gap1, fn ($a, $b) => $b['uncov_lines'] - $a['uncov_lines']);
usort($gap2, fn ($a, $b) => $b['uncov_lines'] - $a['uncov_lines']);

echo "=== GAP-1 CLASSES (need 1 method) ===\n";
foreach ($gap1 as $i => $item) {
    printf("%d. %s (%d uncov lines) - %s\n", $i + 1, $item['class'], $item['uncov_lines'], $item['file']);
}
echo "\nTotal gap-1: ".count($gap1)."\n\n";

echo "=== GAP-2 CLASSES (need 2 methods) ===\n";
foreach ($gap2 as $i => $item) {
    printf("%d. %s (%d uncov lines) - %s\n", $i + 1, $item['class'], $item['uncov_lines'], $item['file']);
}
echo "\nTotal gap-2: ".count($gap2)."\n";