// 공통 헤더 생성 및 관리
class CommonHeader {
    static create(currentPage = '') {
        return `
            <!-- 헤더 -->
            <header class="bg-white shadow-sm sticky top-0 z-50">
                <div class="container mx-auto px-4 py-3">
                    <div class="flex justify-between items-center">
                        <h1 class="text-xl font-bold text-gray-800">
                            <i class="fas fa-clipboard-check text-blue-500 mr-2"></i>작업보고서
                        </h1>
                        <div class="flex items-center gap-4">
                            <span class="text-sm text-gray-600" id="userDisplay"></span>
                            <button onclick="AuthCommon.logout()" class="text-gray-500 hover:text-gray-700">
                                <i class="fas fa-sign-out-alt"></i>
                            </button>
                        </div>
                    </div>
                </div>
            </header>

            <!-- 네비게이션 -->
            <nav class="bg-white border-b">
                <div class="container mx-auto px-4">
                    <div class="flex gap-2 py-2 overflow-x-auto">
                        <a href="daily-work.html" class="nav-link" id="dailyWorkBtn" style="display: none;">
                            <i class="fas fa-calendar-check mr-2"></i>일일 공수
                        </a>
                        ${this.getNavButton('index.html', 'mainBtn', 'fas fa-camera-retro', '부적합 등록', currentPage === 'main')}
                        ${this.getNavButton('issue-view.html', 'issueViewBtn', 'fas fa-search', '부적합 조회', currentPage === 'issue-view')}
                        ${this.getNavButtonInternal('list', 'listBtn', 'fas fa-list', '목록 관리', currentPage === 'list')}
                        ${this.getNavButtonInternal('summary', 'summaryBtn', 'fas fa-chart-bar', '보고서', currentPage === 'summary')}
                        <a href="project-management.html" class="nav-link" style="display:none;" id="projectBtn">
                            <i class="fas fa-folder-open mr-2"></i>프로젝트 관리
                        </a>
                        <div class="relative" style="display:none;" id="adminBtnContainer">
                            <button class="nav-link" id="adminBtn" onclick="toggleAdminMenu()">
                                <i class="fas fa-users-cog mr-2"></i>관리 <i class="fas fa-chevron-down ml-1"></i>
                            </button>
                            <div id="adminMenu" class="absolute right-0 mt-1 w-48 bg-white rounded-md shadow-lg border border-gray-200 z-50 hidden">
                                <a href="admin.html" class="block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100">
                                    <i class="fas fa-users-cog mr-2"></i>사용자 관리
                                </a>
                                <button onclick="showPasswordChangeModal()" class="block w-full text-left px-4 py-2 text-sm text-gray-700 hover:bg-gray-100">
                                    <i class="fas fa-key mr-2"></i>비밀번호 변경
                                </button>
                            </div>
                        </div>
                        <button class="nav-link" style="display:none;" id="userPasswordBtn" onclick="showPasswordChangeModal()">
                            <i class="fas fa-key mr-2"></i>비밀번호 변경
                        </button>
                    </div>
                </div>
            </nav>
        `;
    }

    static getNavButton(href, id, iconClass, text, isActive = false) {
        const activeClass = isActive ? ' active' : '';
        return `<a href="${href}" class="nav-link${activeClass}" id="${id}">
            <i class="${iconClass} mr-2"></i>${text}
        </a>`;
    }

    static getNavButtonInternal(section, id, iconClass, text, isActive = false) {
        const activeClass = isActive ? ' active' : '';
        if (section === 'list' || section === 'summary') {
            return `<button class="nav-link${activeClass}" onclick="showSection('${section}')" style="display:none;" id="${id}">
                <i class="${iconClass} mr-2"></i>${text}
            </button>`;
        }
        return `<a href="index.html#${section}" class="nav-link${activeClass}" style="display:none;" id="${id}">
            <i class="${iconClass} mr-2"></i>${text}
        </a>`;
    }

    static init(currentPage = '') {
        // 헤더 HTML 삽입
        const headerContainer = document.getElementById('header-container');
        if (headerContainer) {
            headerContainer.innerHTML = this.create();
        }

        // 현재 페이지 활성화
        this.setActivePage(currentPage);
    }

    static setActivePage(currentPage) {
        // 모든 nav-link에서 active 클래스 제거
        document.querySelectorAll('.nav-link').forEach(link => {
            link.classList.remove('active');
        });

        // 현재 페이지에 active 클래스 추가
        const activeElement = document.getElementById(currentPage);
        if (activeElement) {
            activeElement.classList.add('active');
        }
    }
}

// 관리자 버튼 클릭 처리 (전역 함수)
function handleAdminClick() {
    if (window.currentUser && window.currentUser.role === 'admin') {
        window.location.href = 'admin.html';
    } else {
        // 비밀번호 변경 모달 표시
        if (typeof showPasswordChangeModal === 'function') {
            showPasswordChangeModal();
        }
    }
}

// 섹션 전환 (메인 페이지용)
function showSection(sectionName) {
    if (typeof window.showSection === 'function') {
        window.showSection(sectionName);
    }
}

// 관리자 메뉴 토글
function toggleAdminMenu() {
    const menu = document.getElementById('adminMenu');
    if (menu) {
        menu.classList.toggle('hidden');
    }
}

// 메뉴 외부 클릭 시 닫기
document.addEventListener('click', function(event) {
    const adminBtn = document.getElementById('adminBtn');
    const adminMenu = document.getElementById('adminMenu');
    
    if (adminBtn && adminMenu && !adminBtn.contains(event.target) && !adminMenu.contains(event.target)) {
        adminMenu.classList.add('hidden');
    }
});