<?php
require_once __DIR__ . '/db_conn.php';
require_once __DIR__ . '/api_log.php';
// 외부(호출하는 파일)에서 $SET_PREFIX를 정의하지 않았을 경우를 대비한 기본값 설정
$prefixCondition = isset($SET_PREFIX) ? $SET_PREFIX : 'L'; //L=리더십(기본값), I=인사이트
if (session_status() === PHP_SESSION_NONE) {
	session_start();
}
$memberId     = $_SESSION['member_id'] ?? '';
$sysCompCode     = $_SESSION['sys_comp_code'] ?? '';
//$memberId    = 'U001';
//$sysCompCode = 'COMP01';

if (!function_exists('edu_extract_youtube_id')) {
    function edu_extract_youtube_id(string $rawUrl): string
    {
        $value = trim($rawUrl);
        if ($value === '') {
            return '';
        }

        if (preg_match('/^[A-Za-z0-9_-]{11}$/', $value) === 1) {
            return $value;
        }

        if (strpos($value, 'youtube.com/watch') !== false) {
            $query = parse_url($value, PHP_URL_QUERY);
            if (is_string($query)) {
                parse_str($query, $params);
                return trim((string) ($params['v'] ?? ''));
            }
        }

        if (strpos($value, 'youtu.be/') !== false) {
            return trim((string) preg_replace('/[?&#].*$/', '', substr($value, strpos($value, 'youtu.be/') + 9)));
        }

        if (strpos($value, 'youtube.com/embed/') !== false) {
            return trim((string) preg_replace('/[?&#].*$/', '', substr($value, strpos($value, 'youtube.com/embed/') + 18)));
        }

        return '';
    }
}

if (!function_exists('edu_build_youtube_thumbnail')) {
    function edu_build_youtube_thumbnail(string $rawUrl, string $thumbnailName = 'hqdefault.jpg'): string
    {
        $videoId = edu_extract_youtube_id($rawUrl);
        if ($videoId === '') {
            return '/img/video/img_thumb_01.png';
        }

        $thumbnailName = trim($thumbnailName);
        if ($thumbnailName === '') {
            $thumbnailName = 'hqdefault.jpg';
        }

        return 'https://img.youtube.com/vi/' . rawurlencode($videoId) . '/' . rawurlencode($thumbnailName);
    }
}

if (!function_exists('edu_normalize_youtube_url')) {
    function edu_normalize_youtube_url(string $rawUrl): string
    {
        $value = trim($rawUrl);
        if ($value === '') {
            return '';
        }

        if (preg_match('/^https?:\/\//i', $value) === 1) {
            return $value;
        }

        $videoId = edu_extract_youtube_id($value);
        if ($videoId === '') {
            return $value;
        }

        return 'https://www.youtube.com/watch?v=' . rawurlencode($videoId);
    }
}

if (!function_exists('edu_build_profile_image_path')) {
    function edu_build_profile_image_path(string $memberId, string $sysCompCode = '', string $belongCompId = '', string $workingCompId = ''): string
    {
        $memberId = trim($memberId);
        if ($memberId === '') {
            return '/img/ico/ico_user.svg';
        }

        $teamCodeSource = '';
        foreach ([$workingCompId, $belongCompId, $sysCompCode] as $candidate) {
            $candidate = preg_replace('/[^A-Za-z0-9]/', '', strtoupper(trim((string) $candidate)));
            if ($candidate !== '') {
                $teamCodeSource = $candidate;
                break;
            }
        }

        $teamCode = $teamCodeSource === '' ? '' : substr($teamCodeSource, -2);
        if ($teamCode === '') {
            return '/img/ico/ico_user.svg';
        }

        return '/img/profile/' . rawurlencode($memberId . '_' . $teamCode) . '.png';
    }
}

//Svg
if($prefixCondition=='L'){
    $prefixSvg = "leadership";
}else if($prefixCondition=='I'){
    $prefixSvg = "insight";
}

//배너설정
if($prefixCondition=='L'){//L=리더십(기본값), I=인사이트
    $array_banner_img = [
        ['normal' => '/img/leadership/img_banner_01.png', 'mobile' => '/img/leadership/img_banner_01_m.png', 'title' => '실천으로 완성하는 리더십'],
        ['normal' => '/img/leadership/img_banner_02.png', 'mobile' => '/img/leadership/img_banner_02_m.png', 'title' => '성장하는 리더십 여정'],
        ['normal' => '/img/leadership/img_banner_03.png', 'mobile' => '/img/leadership/img_banner_03_m.png', 'title' => '리더로 성장하는 과정'],
    ];
}else if($prefixCondition=='I'){//L=리더십(기본값), I=인사이트
    $array_banner_img = [
        ['normal' => '/img/insight/img_banner_01.png', 'mobile' => '/img/insight/img_banner_01_m.png', 'title' => '잘되는 일 하세요'],
        ['normal' => '/img/insight/img_banner_02.png', 'mobile' => '/img/insight/img_banner_02_m.png', 'title' => '다시 일하고 싶은 관계'],
        ['normal' => '/img/insight/img_banner_03.png', 'mobile' => '/img/insight/img_banner_03_m.png', 'title' => '3일의 실행'],
    ];
}
$dbSuccess = false;
$array_tab_info = [];
$array_leadership_banner = [];
$array_insight_banner = [];

try {
    $pdo = db_conn();
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $pdo->exec("SET NAMES 'utf8mb4'");
    
    // LIKE 연산자를 안전하게 처리하기 위해 준비된 선언(Prepared Statement) 사용
    $stmtCode = $pdo->prepare("
        SELECT group_code, base_code, code, code_name
        FROM edu_codes
        WHERE is_active = 1
          AND group_code = 'CA200'
          AND code LIKE :prefix
        ORDER BY base_code ASC
    ");
    
    // 'L%' 형태로 바인딩하여 검색
    $stmtCode->execute([':prefix' => $prefixCondition . '%']);
    $rows = $stmtCode->fetchAll(PDO::FETCH_ASSOC);
    
    if ($rows) {
        $i = 1;
        foreach ($rows as $cr) {
            $index = sprintf('%02d', $i); 
            $index_src = '/img/ico/ico_'.$prefixSvg.'_' . $index . '.svg';
             
            $array_tab_info[] = [
                'base_code' => $cr['base_code'],
                'code_name' => $cr['code_name'],
                'src'       => $index_src
            ];
            $i++;
        }
    }

    if ($prefixCondition === 'L') {
        $stmtBanner = $pdo->prepare(
            "
            SELECT
                c.content_id,
                c.title,
                c.description1,
                c.description2,
                c.description3,
                c.content_url,
                c.sort_order
            FROM edu_contents c
            WHERE c.is_active = 1
              AND c.issue_type_code = 'LD10010'
            ORDER BY
                CASE WHEN COALESCE(c.sort_order, 0) = 0 THEN 1 ELSE 0 END,
                c.sort_order ASC,
                c.content_id DESC
            "
        );
        $stmtBanner->execute();

        foreach ($stmtBanner->fetchAll(PDO::FETCH_ASSOC) as $bannerRow) {
            $contentUrl = trim((string) ($bannerRow['content_url'] ?? ''));
            $array_leadership_banner[] = [
                'content_id' => (string) ($bannerRow['content_id'] ?? ''),
                'title' => (string) ($bannerRow['title'] ?? ''),
                'description1' => trim((string) ($bannerRow['description1'] ?? '')),
                'description2' => trim((string) ($bannerRow['description2'] ?? '')),
                'description3' => trim((string) ($bannerRow['description3'] ?? '')),
                'content_url' => $contentUrl,
                'thumbnail' => edu_build_youtube_thumbnail($contentUrl, 'sddefault.jpg'),
                'banner_title_pc' => '/img/leadership/banner_leadership.svg',
                'banner_title_mo' => '/img/leadership/banner_leadership_m.svg',
            ];
        }
    } elseif ($prefixCondition === 'I') {
        $stmtBanner = $pdo->prepare(
            "
            SELECT
                c.content_id,
                c.title,
                c.description1,
                c.description2,
                c.description3,
                c.content_url,
                c.category_code,
                c.category_group,
                c.issue_type_code,
                                c.is_offer,
                                c.offer_id,
                c.sort_order,
                                cg.code_name AS sub_category_name,
                                o.member_id AS offer_member_id,
                                o.sys_comp_code AS offer_sys_comp_code,
                                u.name AS offer_member_name,
                                u.dept_name AS offer_dept_name,
                                u.rank_name AS offer_rank_name,
                                u.sys_comp_code AS user_sys_comp_code,
                                u.belong_comp_id,
                                u.working_comp_id
            FROM edu_contents c
            LEFT JOIN edu_codes cg
              ON cg.base_code = c.category_group
             AND cg.group_code = 'CA200'
             AND cg.is_active = 1
                        LEFT JOIN edu_content_offer o
                            ON o.offer_id = c.offer_id
                        LEFT JOIN edu_users u
                            ON u.member_id = o.member_id
                         AND (
                                        o.sys_comp_code IS NULL
                                 OR o.sys_comp_code = ''
                                 OR u.sys_comp_code = o.sys_comp_code
                         )
            WHERE c.is_active = 1
              AND c.issue_type_code IN ('IS10001', 'IS10002', 'IS10003')
            ORDER BY
                CASE c.issue_type_code
                    WHEN 'IS10001' THEN 1
                    WHEN 'IS10002' THEN 2
                    WHEN 'IS10003' THEN 3
                    ELSE 99
                END ASC,
                CASE WHEN COALESCE(c.sort_order, 0) = 0 THEN 1 ELSE 0 END,
                c.sort_order ASC,
                c.content_id DESC
            "
        );
        $stmtBanner->execute();

        $insightBannerTitleMap = [
            'IS10001' => [
                'pc' => '/img/insight/banner_issue.svg',
                'mo' => '/img/insight/banner_issue_m.svg',
                'alt' => 'Hot Issue',
            ],
            'IS10002' => [
                'pc' => '/img/insight/banner_pick.svg',
                'mo' => '/img/insight/banner_pick_m.svg',
                'alt' => "Editor's Pick",
            ],
            'IS10003' => [
                'pc' => '/img/insight/banner_choice.svg',
                'mo' => '/img/insight/banner_choice_m.svg',
                'alt' => "Top Learner's Choice",
            ],
        ];

        foreach ($stmtBanner->fetchAll(PDO::FETCH_ASSOC) as $bannerRow) {
            $issueTypeCode = (string) ($bannerRow['issue_type_code'] ?? '');
            $titleMeta = $insightBannerTitleMap[$issueTypeCode] ?? $insightBannerTitleMap['IS10001'];
            $contentUrl = edu_normalize_youtube_url((string) ($bannerRow['content_url'] ?? ''));
            $offerMemberId = trim((string) ($bannerRow['offer_member_id'] ?? ''));
            $offerMemberName = trim((string) ($bannerRow['offer_member_name'] ?? ''));
            $offerDeptName = trim((string) ($bannerRow['offer_dept_name'] ?? ''));
            $offerRankName = trim((string) ($bannerRow['offer_rank_name'] ?? ''));
            $isTopLearner = $issueTypeCode === 'IS10003' && (string) ($bannerRow['is_offer'] ?? '') === '1';

            $array_insight_banner[] = [
                'content_id' => (string) ($bannerRow['content_id'] ?? ''),
                'title' => (string) ($bannerRow['title'] ?? ''),
                'description1' => trim((string) ($bannerRow['description1'] ?? '')),
                'description2' => trim((string) ($bannerRow['description2'] ?? '')),
                'description3' => trim((string) ($bannerRow['description3'] ?? '')),
                'content_url' => $contentUrl,
                'thumbnail' => edu_build_youtube_thumbnail($contentUrl, 'sddefault.jpg'),
                'category_name' => '인사이트',
                'sub_category_name' => trim((string) ($bannerRow['sub_category_name'] ?? '')),
                'issue_type_code' => $issueTypeCode,
                'banner_title_pc' => $titleMeta['pc'],
                'banner_title_mo' => $titleMeta['mo'],
                'banner_title_alt' => $titleMeta['alt'],
                'is_top_learner' => $isTopLearner,
                'offer_member_id' => $offerMemberId,
                'offer_member_name' => $offerMemberName,
                'offer_dept_name' => $offerDeptName,
                'offer_rank_name' => $offerRankName,
                'offer_profile_image' => $isTopLearner
                    ? edu_build_profile_image_path(
                        $offerMemberId,
                        (string) ($bannerRow['user_sys_comp_code'] ?? $bannerRow['offer_sys_comp_code'] ?? ''),
                        (string) ($bannerRow['belong_comp_id'] ?? ''),
                        (string) ($bannerRow['working_comp_id'] ?? '')
                    )
                    : '/img/ico/ico_user.svg',
            ];
        }
    }
    
    $dbSuccess = true;
} catch (Exception $e) {
    $errMsg = $e->getMessage() . ' in ' . $e->getFile() . ':' . $e->getLine();
    error_log('[leadership_init_data.php] DB Error: ' . $errMsg);
    // api_log 함수가 있다면 기록
    if (function_exists('api_log')) {
        api_log('leadership_init', 'DB_ERROR', ['error' => $errMsg]);
    }
}