"""
웰컴 모달 컴포넌트 - YouTube 튜토리얼 영상 팝업
첫 방문 시 자동으로 표시, "다시 보지 않기" 기능 지원

localStorage 키: 'welcome_modal_dismissed' (게임 상태와 독립적)
"""

import gradio as gr


class WelcomeModal:
    """
    웰컴 모달 - YouTube 튜토리얼 영상 표시

    - 첫 방문 시 자동 표시
    - "다시 보지 않기" 클릭 시 localStorage에 저장
    - 게임 초기화와 독립적으로 설정 유지
    """

    # YouTube 영상 ID
    YOUTUBE_VIDEO_ID = "YbCf6x0B3fU"

    # localStorage 키 (게임 상태와 별도)
    STORAGE_KEY = "welcome_modal_dismissed"

    HTML_TEMPLATE = """
    ${value && value.visible ? `
    <div class="welcome-modal-overlay" data-welcome-overlay="true">
        <div class="welcome-modal-container">
            <div class="welcome-modal-content">
                <h2 class="welcome-modal-title">Welcome to Voice Sementle!</h2>

                <div class="welcome-modal-video">
                    <iframe
                        src="https://www.youtube.com/embed/${value.videoId || 'YbCf6x0B3fU'}?rel=0&modestbranding=1"
                        title="Voice Sementle Tutorial"
                        frameborder="0"
                        allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
                        referrerpolicy="strict-origin-when-cross-origin"
                        allowfullscreen>
                    </iframe>
                </div>

                <div class="welcome-modal-actions">
                    <button class="welcome-modal-btn welcome-modal-btn-primary" data-welcome-close="true">
                        Start Playing
                    </button>
                    <button class="welcome-modal-btn welcome-modal-btn-secondary" data-welcome-dismiss="true">
                        Don't show again
                    </button>
                </div>
            </div>
        </div>
    </div>
    ` : ''}
    """

    CSS_TEMPLATE = """
    /* 웰컴 모달 - 전역 스타일에 영향 없도록 스코핑 */
    .welcome-modal-overlay {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        background-color: rgba(0, 0, 0, 0.7) !important;
        backdrop-filter: blur(4px);
        z-index: 9999 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        padding: 20px;
        box-sizing: border-box;
        font-family: inherit;
    }

    .welcome-modal-container {
        width: 100%;
        max-width: 1280px;
        max-height: 90vh;
        overflow-y: auto;
        position: relative;
        animation: welcomeModalFadeIn 0.3s ease-out;
        font-family: inherit;
        border-radius: 20px;
    }

    @keyframes welcomeModalFadeIn {
        from {
            opacity: 0;
            transform: scale(0.9) translateY(-20px);
        }
        to {
            opacity: 1;
            transform: scale(1) translateY(0);
        }
    }

    .welcome-modal-close {
        position: absolute;
        top: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #ffffff;
        transition: all 0.2s ease;
        z-index: 10;
        padding: 0;
        font-family: inherit;
    }

    .welcome-modal-close:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: scale(1.1);
    }

    .welcome-modal-content {
        padding: 32px;
        text-align: center;
        font-family: inherit;
    }

    .welcome-modal-title {
        font-size: 60px;
        font-weight: 700;
        color: #ffffff;
        margin: 0 0 24px 0;
        font-family: inherit;
    }

    .welcome-modal-subtitle {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.7);
        margin: 0 0 24px 0;
        font-family: inherit;
    }

    .welcome-modal-video {
        position: relative;
        width: 100%;
        padding-bottom: 56.25%; /* 16:9 aspect ratio */
        border-radius: 16px;
        overflow: hidden;
        background: #000;
        margin-bottom: 24px;
    }

    .welcome-modal-video iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .welcome-modal-actions {
        display: flex;
        justify-content: center;
        gap: 12px;
        align-items: center;
    }

    .welcome-modal-btn {
        padding: 14px 32px;
        border-radius: 20px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
        border: none;
        min-width: 200px;
        font-family: inherit;
    }

    .welcome-modal-btn-primary {
        background: #4db8ff !important;
        color: #ffffff !important;
    }

    .welcome-modal-btn-primary:hover {
        transform: translateY(-2px);
    }

    .welcome-modal-btn-secondary {
        background: transparent;
        color: rgba(255, 255, 255, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .welcome-modal-btn-secondary:hover {
        background: rgba(255, 255, 255, 0.1);
        color: rgba(255, 255, 255, 0.9);
    }

    /* Mobile responsive */
    @media (max-width: 600px) {
        .welcome-modal-container {
            max-width: 100%;
            border-radius: 16px;
        }

        .welcome-modal-content {
            padding: 24px 16px;
        }

        .welcome-modal-title {
            font-size: 22px;
        }

        .welcome-modal-btn {
            width: 100%;
            min-width: unset;
        }
    }
    """

    JS_ON_LOAD = """
    const STORAGE_KEY = 'welcome_modal_dismissed';
    const videoId = props.value?.videoId || 'YbCf6x0B3fU';

    // 페이지 로드 시 localStorage 체크
    const isDismissed = localStorage.getItem(STORAGE_KEY) === 'true';

    // "다시 보지 않기"를 선택하지 않은 경우에만 모달 표시
    if (!isDismissed) {
        // 폰트가 완전히 로드된 후 모달 표시
        document.fonts.ready.then(() => {
            // 폰트 로드 후 약간의 딜레이 추가 (렌더링 안정화)
            setTimeout(() => {
                props.value = { visible: true, videoId: videoId };
            }, 100);
        });
    }

    // 클릭 이벤트 핸들러
    element.addEventListener('click', (e) => {
        // 배경 클릭으로 닫기
        if (e.target.dataset.welcomeOverlay === 'true') {
            props.value = { visible: false, videoId: props.value?.videoId };
        }

        // X 버튼 또는 "Start Playing" 버튼 클릭
        if (e.target.closest('[data-welcome-close="true"]')) {
            props.value = { visible: false, videoId: props.value?.videoId };
        }

        // "Don't show again" 버튼 클릭
        if (e.target.closest('[data-welcome-dismiss="true"]')) {
            localStorage.setItem(STORAGE_KEY, 'true');
            props.value = { visible: false, videoId: props.value?.videoId };
        }
    });

    // ESC 키로 닫기
    const handleKeydown = (e) => {
        if (e.key === 'Escape' && props.value && props.value.visible) {
            props.value = { visible: false, videoId: props.value?.videoId };
        }
    };
    document.addEventListener('keydown', handleKeydown);
    """

    def __init__(self, video_id: str = None):
        """
        웰컴 모달 초기화

        Args:
            video_id: YouTube 영상 ID (기본값: YbCf6x0B3fU)
        """
        self.video_id = video_id or self.YOUTUBE_VIDEO_ID
        self.component = None

    def render(self) -> gr.HTML:
        """
        웰컴 모달 컴포넌트 렌더링

        Returns:
            gr.HTML: 렌더링된 모달 컴포넌트
        """
        # 초기값은 visible: False로 설정 (JS에서 로드 후 표시)
        self.component = gr.HTML(
            value={"visible": False, "videoId": self.video_id},
            html_template=self.HTML_TEMPLATE,
            css_template=self.CSS_TEMPLATE,
            js_on_load=self.JS_ON_LOAD,
            elem_id="welcome-modal",
        )
        return self.component

    @staticmethod
    def show(video_id: str = "YbCf6x0B3fU") -> dict:
        """모달 열기"""
        return {"visible": True, "videoId": video_id}

    @staticmethod
    def hide() -> dict:
        """모달 닫기"""
        return {"visible": False, "videoId": ""}