<?php
// Shared helpers for /gaming/collection/ catalog pages.
// Structure inspired by small-web collection catalogs; content & style are SillyLaird's.

require_once __DIR__ . '/../../partials/i18n.php';

function collection_lang(): string {
    return _i18n_lang();
}

function collection_h(string $k): string {
    return htmlspecialchars(t($k), ENT_QUOTES, 'UTF-8');
}

function collection_he(string $s): string {
    return htmlspecialchars($s, ENT_QUOTES, 'UTF-8');
}

function collection_load(?string $path = null): array {
    $path = $path ?? (__DIR__ . '/games.json');
    $empty = ['consoles' => [], 'hardware' => [], 'systems' => [], 'online' => []];
    if (!is_file($path)) {
        return $empty;
    }
    $raw = file_get_contents($path);
    if ($raw === false || trim($raw) === '') {
        return $empty;
    }
    $data = json_decode($raw, true);
    if (!is_array($data)) {
        return $empty;
    }
    // Prefer consoles; fall back to legacy videogames key.
    $consoles = $data['consoles'] ?? $data['videogames'] ?? [];
    return [
        'consoles' => is_array($consoles) ? $consoles : [],
        'hardware' => is_array($data['hardware'] ?? null) ? $data['hardware'] : [],
        'systems'  => is_array($data['systems'] ?? null) ? $data['systems'] : [],
        'online'   => is_array($data['online'] ?? null) ? $data['online'] : [],
    ];
}

function collection_image_src(string $image): string {
    $image = trim($image);
    if ($image === '') {
        return '';
    }
    if (str_starts_with($image, 'http://') || str_starts_with($image, 'https://') || str_starts_with($image, '/')) {
        return $image;
    }
    if (str_contains($image, '..') || str_contains($image, "\0")) {
        return '';
    }
    return '/gaming/collection/images/' . rawurlencode(basename($image));
}

function collection_status_class(string $status): string {
    $slug = strtolower(preg_replace('/[^a-z0-9]+/i', '-', $status) ?? '');
    $slug = trim($slug, '-');
    return $slug !== '' ? 'status-' . $slug : 'status-other';
}

function collection_safe_href(string $url): string {
    $url = trim($url);
    if ($url === '') {
        return '';
    }
    if (str_starts_with($url, '/')) {
        return str_starts_with($url, '//') ? '' : $url;
    }
    $scheme = strtolower((string)(parse_url($url, PHP_URL_SCHEME) ?? ''));
    if (in_array($scheme, ['http', 'https', 'gemini', 'gopher'], true)) {
        return $url;
    }
    return '';
}

/**
 * Inventory rows (name :: model) from a flat list (consoles or hardware).
 * @param list<array<string,mixed>> $items
 * @return list<array{left:string,right:string,status:string,notes:string,image:string,url:string,specs:array<int,array{label:string,value:string}>}>
 */
function collection_inventory_rows(array $items): array {
    $rows = [];
    foreach ($items as $item) {
        if (!is_array($item)) continue;
        $name = trim((string)($item['name'] ?? ''));
        $model = trim((string)($item['model'] ?? ''));
        if ($name === '') continue;
        if ($model === '') $model = $name;
        $status = (string)($item['status'] ?? 'Owned');
        $rows[] = [
            'left' => $name,
            'right' => $model,
            'status' => $status,
            'notes' => (string)($item['notes'] ?? ''),
            'image' => (string)($item['image'] ?? ''),
            'url' => '',
            'specs' => [
                ['label' => t('collection.spec_system'), 'value' => $name],
                ['label' => t('collection.spec_status'), 'value' => $status],
            ],
        ];
    }
    return $rows;
}

/** Consoles inventory. */
function collection_console_rows(array $data): array {
    return collection_inventory_rows($data['consoles'] ?? []);
}

/** Hardware inventory. */
function collection_hardware_inventory_rows(array $data): array {
    return collection_inventory_rows($data['hardware'] ?? []);
}

/** @deprecated use collection_console_rows */
function collection_videogame_rows(array $data): array {
    return collection_console_rows($data);
}

/**
 * Video games library: titles under systems (system :: title).
 * @return list<array{left:string,right:string,status:string,notes:string,image:string,url:string,specs:array<int,array{label:string,value:string}>}>
 */
function collection_games_library_rows(array $data): array {
    $rows = [];
    foreach (($data['systems'] ?? []) as $sys) {
        if (!is_array($sys)) continue;
        $left = (string)($sys['name'] ?? '');
        foreach (($sys['games'] ?? []) as $game) {
            if (!is_array($game)) continue;
            $title = trim((string)($game['title'] ?? ''));
            if ($title === '') continue;
            $status = (string)($game['status'] ?? 'Owned');
            $rows[] = [
                'left' => $left,
                'right' => $title,
                'status' => $status,
                'notes' => (string)($game['notes'] ?? ''),
                'image' => (string)($game['image'] ?? ''),
                'url' => '',
                'specs' => [
                    ['label' => t('collection.spec_system'), 'value' => $left],
                    ['label' => t('collection.spec_status'), 'value' => $status],
                ],
            ];
        }
    }
    return $rows;
}

/** @deprecated */
function collection_tech_rows(array $data): array {
    return collection_games_library_rows($data);
}

/** @deprecated */
function collection_hardware_rows(array $data): array {
    return collection_games_library_rows($data);
}

/**
 * Flatten online song packs into catalog rows.
 * @return list<array{left:string,right:string,status:string,notes:string,image:string,url:string,specs:array<int,array{label:string,value:string}>}>
 */
function collection_pack_rows(array $data): array {
    $rows = [];
    foreach ($data['online'] as $cat) {
        if (!is_array($cat)) continue;
        $left = (string)($cat['name'] ?? '');
        foreach (($cat['entries'] ?? []) as $entry) {
            if (!is_array($entry)) continue;
            $title = trim((string)($entry['title'] ?? ''));
            if ($title === '') continue;
            $status = (string)($entry['status'] ?? 'Owned');
            $url = (string)($entry['url'] ?? '');
            $specs = [
                ['label' => t('collection.spec_game'), 'value' => $left],
                ['label' => t('collection.spec_status'), 'value' => $status],
            ];
            if ($url !== '') {
                $specs[] = ['label' => t('collection.spec_link'), 'value' => t('collection.spec_link_yes')];
            }
            $rows[] = [
                'left' => $left,
                'right' => $title,
                'status' => $status,
                'notes' => (string)($entry['notes'] ?? ''),
                'image' => (string)($entry['image'] ?? ''),
                'url' => $url,
                'specs' => $specs,
            ];
        }
    }
    return $rows;
}

/**
 * @param list<array{left:string,right:string,status:string,notes:string,image:string,url:string,specs:array}> $rows
 * @return list<array{left:string,right:string,status:string,notes:string,image:string,url:string,specs:array}>
 */
function collection_filter_wishlist(array $rows): array {
    return array_values(array_filter(
        $rows,
        static fn(array $r) => strcasecmp((string)($r['status'] ?? ''), 'Wishlist') === 0
    ));
}

/**
 * Render one catalog row (photo + name + icon-style specs).
 * @param array{left:string,right:string,status:string,notes:string,image:string,url:string,specs?:array} $row
 */
function collection_render_row(array $row): void {
    $left = (string)($row['left'] ?? '');
    $right = (string)($row['right'] ?? '');
    $status = (string)($row['status'] ?? 'Owned');
    $notes = (string)($row['notes'] ?? '');
    $img = collection_image_src((string)($row['image'] ?? ''));
    $href = collection_safe_href((string)($row['url'] ?? ''));
    $specs = is_array($row['specs'] ?? null) ? $row['specs'] : [];
    $he = 'collection_he';
    $h = 'collection_h';
    ?>
    <div class="gc-row">
      <div class="gc-pic">
        <?php if ($img !== ''): ?>
          <a href="<?= $he($img) ?>" target="_blank" rel="noopener noreferrer">
            <img src="<?= $he($img) ?>" alt="" loading="lazy" decoding="async" width="200" height="150" />
          </a>
        <?php else: ?>
          <div class="gc-pic-empty" aria-hidden="true">no photo</div>
        <?php endif; ?>
      </div>
      <div class="gc-body">
        <p class="gc-name">
          <?php if ($href !== ''): ?>
            <a href="<?= $he($href) ?>" target="_blank" rel="noopener noreferrer"><?= $he($left) ?></a>
            <span class="gc-colon">::</span>
            <a href="<?= $he($href) ?>" target="_blank" rel="noopener noreferrer"><?= $he($right) ?></a>
          <?php else: ?>
            <span class="gc-nick"><?= $he($left) ?></span>
            <span class="gc-colon">::</span>
            <span class="gc-model"><?= $he($right) ?></span>
          <?php endif; ?>
        </p>
        <?php if ($notes !== ''): ?>
          <p class="gc-note"><em><?= nl2br($he($notes)) ?></em></p>
        <?php endif; ?>
        <p class="gc-specs">
          <?php foreach ($specs as $spec):
            $label = (string)($spec['label'] ?? '');
            $value = (string)($spec['value'] ?? '');
            if ($value === '') continue;
          ?>
            <span class="gc-spec">
              <span class="gc-spec-ico" title="<?= $he($label) ?>" aria-hidden="true"><?= $he(mb_substr($label, 0, 1)) ?></span>
              <span class="gc-spec-val"><?= $he($value) ?></span>
            </span>
          <?php endforeach; ?>
          <?php if ($href !== ''): ?>
            <span class="gc-spec">
              <span class="gc-spec-ico" aria-hidden="true">↗</span>
              <a class="gc-spec-val" href="<?= $he($href) ?>" target="_blank" rel="noopener noreferrer"><?= $h('collection.visit_product') ?></a>
            </span>
          <?php endif; ?>
        </p>
      </div>
    </div>
    <?php
}

/**
 * Shared page shell open (head + header + title + menu).
 * @param 'games'|'consoles'|'hardware'|'packs'|'wishlist' $active
 */
function collection_page_open(string $active, string $pageTitle, string $pageDesc, string $baseFile): void {
    $lang = collection_lang();
    $langAttr = ['en' => 'en', 'ja' => 'ja', 'zh' => 'zh'][$lang] ?? 'en';
    $suffix = ['en' => '', 'ja' => '_jp', 'zh' => '_zh'][$lang] ?? '';
    $selfName = $baseFile . $suffix . '.php';
    if ($baseFile === 'index' && $lang === 'en') {
        $selfUrl = 'https://www.sillylaird.ca/gaming/collection/';
        $enUrl = 'https://www.sillylaird.ca/gaming/collection/';
    } else {
        $selfUrl = 'https://www.sillylaird.ca/gaming/collection/' . $selfName;
        $enUrl = 'https://www.sillylaird.ca/gaming/collection/' . ($baseFile === 'index' ? '' : $baseFile . '.php');
        if ($baseFile === 'index') {
            $enUrl = 'https://www.sillylaird.ca/gaming/collection/';
        }
    }
    $jaUrl = 'https://www.sillylaird.ca/gaming/collection/' . $baseFile . '_jp.php';
    $zhUrl = 'https://www.sillylaird.ca/gaming/collection/' . $baseFile . '_zh.php';
    if ($baseFile === 'index') {
        $jaUrl = 'https://www.sillylaird.ca/gaming/collection/index_jp.php';
        $zhUrl = 'https://www.sillylaird.ca/gaming/collection/index_zh.php';
    }
    $h = 'collection_h';
    // Video Games / Consoles / Hardware / Song Packs / Wishlist
    if ($lang === 'ja') {
        $hrefGames = '/gaming/collection/index_jp.php';
        $hrefCons  = '/gaming/collection/consoles_jp.php';
        $hrefHw    = '/gaming/collection/hardware_jp.php';
        $hrefPk    = '/gaming/collection/packs_jp.php';
        $hrefWl    = '/gaming/collection/wishlist_jp.php';
    } elseif ($lang === 'zh') {
        $hrefGames = '/gaming/collection/index_zh.php';
        $hrefCons  = '/gaming/collection/consoles_zh.php';
        $hrefHw    = '/gaming/collection/hardware_zh.php';
        $hrefPk    = '/gaming/collection/packs_zh.php';
        $hrefWl    = '/gaming/collection/wishlist_zh.php';
    } else {
        $hrefGames = '/gaming/collection/';
        $hrefCons  = '/gaming/collection/consoles.php';
        $hrefHw    = '/gaming/collection/hardware.php';
        $hrefPk    = '/gaming/collection/packs.php';
        $hrefWl    = '/gaming/collection/wishlist.php';
    }
    $act = static fn(string $key) => $active === $key ? ' class="gc-menu-active" id="gc-main"' : '';
    ?>
<!doctype html>
<html lang="<?= $langAttr ?>">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width,initial-scale=1" />
  <title><?= collection_he($pageTitle) ?></title>
  <?php
  $meta = [
    'lang'      => $lang,
    'title'     => $pageTitle,
    'desc'      => $pageDesc,
    'base'      => 'gaming/collection/' . $baseFile,
    'self_url'  => $selfUrl,
    'en_url'    => $enUrl,
    'x_default' => $enUrl,
    'ja_url'    => $jaUrl,
    'zh_url'    => $zhUrl,
  ];
  include __DIR__ . '/../../partials/head_meta.php';
  ?>
  <link rel="stylesheet" href="/assets/css/fonts.css" />
  <link rel="stylesheet" href="/assets/css/site.css" />
  <link rel="stylesheet" href="/assets/css/skeleton.css" />
  <link rel="stylesheet" href="/assets/css/pages/collection.css" />
</head>
<body class="gc-page">
  <a class="skip-link" href="#main"><?= $h('common.skip') ?></a>
  <?php include __DIR__ . '/../../partials/header.php'; ?>

  <main id="main" class="wrap gc-wrap">
    <p class="gc-title"><?= $h('collection.h1') ?></p>
    <nav class="gc-menu" aria-label="<?= $h('collection.jump_nav') ?>">
      <a href="<?= collection_he($hrefGames) ?>"<?= $act('games') ?>><?= $h('collection.menu_games') ?></a><span class="gc-menu-sep">/</span><a href="<?= collection_he($hrefCons) ?>"<?= $act('consoles') ?>><?= $h('collection.menu_consoles') ?></a><span class="gc-menu-sep">/</span><a href="<?= collection_he($hrefHw) ?>"<?= $act('hardware') ?>><?= $h('collection.menu_hardware') ?></a><span class="gc-menu-sep">/</span><a href="<?= collection_he($hrefPk) ?>"<?= $act('packs') ?>><?= $h('collection.menu_packs') ?></a><span class="gc-menu-sep">/</span><a href="<?= collection_he($hrefWl) ?>"<?= $act('wishlist') ?>><?= $h('collection.menu_wishlist') ?></a>
    </nav>
    <?php
}

function collection_page_close(): void {
    ?>
  </main>
  <?php include __DIR__ . '/../../partials/footer.php'; ?>
</body>
</html>
    <?php
}