<?php
//=========================
//개인정보 + 최신연도 학습레벨 + 배지
//=========================
require_once __DIR__ . '/db_conn.php';

if (!function_exists('mypage_h')) {
    function mypage_h(?string $str): string
    {
        return htmlspecialchars((string)$str, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
    }
}

if (!function_exists('mypage_level_meta')) {
    function mypage_level_meta(?string $level): array
    {
        $level = trim((string)$level);
        
        $map = [
            'MASTER' => [
                'code'       => 'Master',
                'class'      => 'master',
                'label'      => 'Master',
                'icon'       => '/edu/img/ico/ico_level_master.svg',
            ],
            'ELITE' => [
                'code'       => 'Elite',
                'class'      => 'elite',
                'label'      => 'Elite',
                'icon'       => '/edu/img/ico/ico_level_elite.svg',
            ],
            'LEARNER' => [
                'code'       => 'Learner',
                'class'      => 'learner',
                'label'      => 'Learner',
                'icon'       => '/edu/img/ico/ico_level_learner.svg',
            ],
            'ROOKIE' => [
                'code'       => 'Rookie',
                'class'      => 'rookie',
                'label'      => 'Rookie',
                'icon'       => '/edu/img/ico/ico_level_rookie.svg',
            ],
        ];
        
        $key = strtoupper($level);
        
        return $map[$key] ?? [
            'code'  => 'Rookie',
            'class' => 'rookie',
            'label' => 'Rookie',
            'icon'  => '/edu/img/ico/ico_level_rookie.svg',
        ];
    }
}

if (!function_exists('mypage_badge_map')) {
    function mypage_badge_map(string $badgeCode): array
    {
        $badgeCode = strtoupper(trim($badgeCode));
        
        $BADGE_ICON_MAP = [
            // 실제 운영 시 코드값 확정되면 여기만 교체
            'BG001' => [
                'slot'  => 'hat',
                'img'   => '/edu/img/mypage/ico_school.png',
                'name'  => '학습 배지',
            ],
            'BG002' => [
                'slot'  => 'pencil',
                'img'   => '/edu/img/mypage/ico_pencil.png',
                'name'  => '작성 배지',
            ],
            'BG003' => [
                'slot'  => 'pick',
                'img'   => '/edu/img/mypage/ico_pick_2.png',
                'name'  => 'Pick 배지',
            ],
        ];
        
        return $BADGE_ICON_MAP[$badgeCode] ?? [
            'slot'  => 'pick',
            'img'   => '/edu/img/mypage/ico_pick_2.png',
            'name'  => '기본 배지',
        ];
    }
}

// TODO: 실제 로그인 세션 연동 후 교체
$memberId    = 'U001';
$sysCompCode = 'COMP01';

$profileData = [
    'member_id'         => $memberId,
    'sys_comp_code'     => $sysCompCode,
    'name'              => '사용자',
    'rank_name'         => '',
    'working_comp'      => '',
    'join_date'         => '',
    'latest_stats_year' => '',
    'learning_level'    => 'Rookie',
    'level_class'       => 'rookie',
    'level_icon'        => '/edu/img/ico/ico_level_rookie.svg',
    'total_minutes'     => 0,
    'profile_image'     => '/edu/img/insight/profile.png', // 현재는 기본 이미지 고정
];

$profileBadges = [
    'hat'    => null,
    'pencil' => null,
    'pick'   => null,
];

try {
    $pdo = db_conn();
    $pdo->exec("SET NAMES 'utf8mb4'");
    
    // 최신년도 학습통계 우선
    $sql = "
        SELECT
            u.member_id,
            u.sys_comp_code,
            u.name,
            u.rank_name,
            u.working_comp,
            u.join_date,
            ys.stats_year,
            ys.learning_level,
            ys.total_minutes
        FROM edu_users u
        LEFT JOIN edu_yearly_learning_stats ys
               ON ys.member_id = u.member_id
              AND ys.sys_comp_code = u.sys_comp_code
              AND ys.stats_year = (
                  SELECT MAX(stats_year)
                  FROM edu_yearly_learning_stats
                  WHERE member_id = u.member_id
                    AND sys_comp_code = u.sys_comp_code
              )
        WHERE u.member_id = :member_id
          AND u.sys_comp_code = :sys_comp_code
        LIMIT 1
    ";
    
    $stmt = $pdo->prepare($sql);
    $stmt->execute([
        ':member_id'     => $memberId,
        ':sys_comp_code' => $sysCompCode,
    ]);
    
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    
    if ($row) {
        $levelMeta = mypage_level_meta($row['learning_level'] ?? '');
        
        $profileData = [
            'member_id'         => $row['member_id'],
            'sys_comp_code'     => $row['sys_comp_code'],
            'name'              => $row['name'] ?? '사용자',
            'rank_name'         => $row['rank_name'] ?? '',
            'working_comp'      => $row['working_comp'] ?? '',
            'join_date'         => $row['join_date'] ?? '',
            'latest_stats_year' => $row['stats_year'] ?? '',
            'learning_level'    => $levelMeta['label'],
            'level_class'       => $levelMeta['class'],
            'level_icon'        => $levelMeta['icon'],
            'total_minutes'     => (int)($row['total_minutes'] ?? 0),
            'profile_image'     => '/edu/img/insight/profile.png',
        ];
    }
    
    // 최신통계가 없으면 누적 이력 합계 fallback
    if ((int)$profileData['total_minutes'] === 0) {
        $stmtFallback = $pdo->prepare("
            SELECT COALESCE(SUM(watch_tm), 0) AS total_minutes
            FROM edu_learning_histories
            WHERE member_id = :member_id
              AND sys_comp_code = :sys_comp_code
        ");
        $stmtFallback->execute([
            ':member_id'     => $memberId,
            ':sys_comp_code' => $sysCompCode,
        ]);
        
        $fallbackMin = (int)$stmtFallback->fetchColumn();
        if ($fallbackMin > 0) {
            $profileData['total_minutes'] = $fallbackMin;
        }
    }
    
    // 배지 조회
    $stmtBadge = $pdo->prepare("
        SELECT badge_code, issued_at
        FROM edu_user_badges
        WHERE member_id = :member_id
          AND sys_comp_code = :sys_comp_code
        ORDER BY issued_at DESC, seq DESC
    ");
    $stmtBadge->execute([
        ':member_id'     => $memberId,
        ':sys_comp_code' => $sysCompCode,
    ]);
    
    foreach ($stmtBadge->fetchAll(PDO::FETCH_ASSOC) as $badgeRow) {
        $badgeInfo = mypage_badge_map($badgeRow['badge_code'] ?? '');
        $slot      = $badgeInfo['slot'];
        
        if (!isset($profileBadges[$slot]) || $profileBadges[$slot] !== null) {
            continue;
        }
        
        $profileBadges[$slot] = [
            'badge_code' => $badgeRow['badge_code'],
            'slot'       => $slot,
            'img'        => $badgeInfo['img'],
            'name'       => $badgeInfo['name'],
            'issued_at'  => $badgeRow['issued_at'],
        ];
    }
} catch (Throwable $e) {
    // 운영 시 로깅 권장
}