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# app.py - ์˜ฌ๋ฐ”๋ฅธ API ์ฒ˜๋ฆฌ๊ฐ€ ํฌํ•จ๋œ ์ตœ์ข… ๋ฒ„์ „
import gradio as gr
import sqlite3
import json
import uuid
from datetime import datetime
import pandas as pd
import os
import threading

# ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ํŒŒ์ผ ๊ฒฝ๋กœ
DB_FILE = "tracking_data.db"

# ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์ดˆ๊ธฐํ™”
def init_database():
    """SQLite ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์ดˆ๊ธฐํ™” ๋ฐ ํ…Œ์ด๋ธ” ์ƒ์„ฑ"""
    conn = sqlite3.connect(DB_FILE)
    cursor = conn.cursor()
    
    # ๋ฐฉ๋ฌธ์ž ํ…Œ์ด๋ธ” ์ƒ์„ฑ
    cursor.execute("""
        CREATE TABLE IF NOT EXISTS visitors (
            device_id TEXT PRIMARY KEY,
            first_seen TIMESTAMP NOT NULL,
            last_seen TIMESTAMP NOT NULL,
            user_agent TEXT,
            platform TEXT,
            language TEXT,
            screen_resolution TEXT,
            cpu_cores INTEGER,
            device_memory REAL,
            gpu_info TEXT,
            timezone TEXT
        )
    """)
    
    # ์ด๋ฒคํŠธ ํ…Œ์ด๋ธ” ์ƒ์„ฑ
    cursor.execute("""
        CREATE TABLE IF NOT EXISTS events (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            device_id TEXT NOT NULL,
            site_id TEXT NOT NULL,
            event_type TEXT NOT NULL,
            event_data TEXT,
            page_url TEXT,
            page_title TEXT,
            referrer TEXT,
            client_timestamp TIMESTAMP,
            server_timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            FOREIGN KEY (device_id) REFERENCES visitors(device_id)
        )
    """)
    
    # ์ธ๋ฑ์Šค ์ƒ์„ฑ (์ฟผ๋ฆฌ ์„ฑ๋Šฅ ํ–ฅ์ƒ)
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_device_id ON events(device_id)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_timestamp ON events(server_timestamp)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_event_type ON events(event_type)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_site_id ON events(site_id)")
    
    conn.commit()
    conn.close()
    print(f"โœ… ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์ดˆ๊ธฐํ™” ์™„๋ฃŒ: {DB_FILE}")

# ์•ฑ ์‹œ์ž‘ ์‹œ DB ์ดˆ๊ธฐํ™”
init_database()

# ์Šค๋ ˆ๋“œ ์•ˆ์ „์„ฑ์„ ์œ„ํ•œ ๋ฝ
db_lock = threading.Lock()

def process_tracking_data(data_json):
    """์ถ”์  ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ›์•„์„œ SQLite DB์— ์ €์žฅ"""
    with db_lock:
        conn = None
        try:
            # ๋กœ๊น… ์ถ”๊ฐ€
            print(f"[API] Received data: {data_json[:200] if isinstance(data_json, str) else data_json}")
            
            # JSON ํŒŒ์‹ฑ
            data = json.loads(data_json) if isinstance(data_json, str) else data_json
            
            # ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์—ฐ๊ฒฐ
            conn = sqlite3.connect(DB_FILE)
            cursor = conn.cursor()
            
            # ํ•„์ˆ˜ ํ•„๋“œ ํ™•์ธ
            device_id = data.get('deviceId', 'unknown')
            site_id = data.get('siteId', 'unknown')
            
            # 1. ๋ฐฉ๋ฌธ์ž ์ •๋ณด ์—…๋ฐ์ดํŠธ (UPSERT)
            cursor.execute("""
                SELECT device_id FROM visitors WHERE device_id = ?
            """, (device_id,))
            
            if cursor.fetchone() is None:
                # ์‹ ๊ทœ ๋ฐฉ๋ฌธ์ž ์‚ฝ์ž…
                cursor.execute("""
                    INSERT INTO visitors (
                        device_id, first_seen, last_seen, user_agent, platform, 
                        language, screen_resolution, cpu_cores, device_memory, 
                        gpu_info, timezone
                    ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                """, (
                    device_id,
                    datetime.now(),
                    datetime.now(),
                    data.get('userAgent', ''),
                    data.get('platform', ''),
                    data.get('language', ''),
                    data.get('screenResolution', ''),
                    data.get('cpuCores', 0),
                    data.get('deviceMemory', 0),
                    data.get('gpuInfo', ''),
                    data.get('timezone', '')
                ))
                print(f"๐Ÿ†• ์‹ ๊ทœ ๋ฐฉ๋ฌธ์ž ๋“ฑ๋ก: {device_id}")
            else:
                # ๊ธฐ์กด ๋ฐฉ๋ฌธ์ž ์—…๋ฐ์ดํŠธ
                cursor.execute("""
                    UPDATE visitors 
                    SET last_seen = ?, 
                        user_agent = ?,
                        platform = ?,
                        language = ?,
                        screen_resolution = ?,
                        cpu_cores = ?,
                        device_memory = ?,
                        gpu_info = ?,
                        timezone = ?
                    WHERE device_id = ?
                """, (
                    datetime.now(),
                    data.get('userAgent', ''),
                    data.get('platform', ''),
                    data.get('language', ''),
                    data.get('screenResolution', ''),
                    data.get('cpuCores', 0),
                    data.get('deviceMemory', 0),
                    data.get('gpuInfo', ''),
                    data.get('timezone', ''),
                    device_id
                ))
            
            # 2. ์ด๋ฒคํŠธ ์ €์žฅ
            event_data = data.get('eventData', {})
            cursor.execute("""
                INSERT INTO events (
                    device_id, site_id, event_type, event_data, 
                    page_url, page_title, referrer, client_timestamp
                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
            """, (
                device_id,
                site_id,
                data.get('eventType', 'pageview'),
                json.dumps(event_data),
                data.get('pageUrl', ''),
                data.get('pageTitle', ''),
                data.get('referrer', ''),
                data.get('timestamp', datetime.now().isoformat())
            ))
            
            tracking_id = cursor.lastrowid
            conn.commit()
            
            print(f"โœ… ์ด๋ฒคํŠธ ์ €์žฅ: ID={tracking_id}, Type={data.get('eventType')}, Device={device_id}")
            
            return {
                "status": "success",
                "message": "Data tracked successfully",
                "trackingId": tracking_id,
                "deviceId": device_id
            }
            
        except Exception as e:
            if conn:
                conn.rollback()
            print(f"โŒ ์˜ค๋ฅ˜ ๋ฐœ์ƒ: {str(e)}")
            return {"status": "error", "message": str(e)}
        finally:
            if conn:
                conn.close()

def get_statistics():
    """DB์—์„œ ํ†ต๊ณ„ ๋ฐ์ดํ„ฐ ์กฐํšŒ"""
    conn = sqlite3.connect(DB_FILE)
    cursor = conn.cursor()
    
    try:
        # ์ด ๋ฐฉ๋ฌธ์ž ์ˆ˜
        cursor.execute("SELECT COUNT(*) FROM visitors")
        total_visitors = cursor.fetchone()[0]
        
        # ์˜ค๋Š˜ ๋ฐฉ๋ฌธ์ž ์ˆ˜
        cursor.execute("""
            SELECT COUNT(DISTINCT device_id) FROM events 
            WHERE DATE(server_timestamp) = DATE('now', 'localtime')
        """)
        today_visitors = cursor.fetchone()[0]
        
        # ์ด ์ด๋ฒคํŠธ ์ˆ˜
        cursor.execute("SELECT COUNT(*) FROM events")
        total_events = cursor.fetchone()[0]
        
        # ์ด๋ฒคํŠธ ํƒ€์ž…๋ณ„ ํ†ต๊ณ„
        cursor.execute("""
            SELECT event_type, COUNT(*) as count 
            FROM events 
            GROUP BY event_type 
            ORDER BY count DESC
        """)
        event_types = cursor.fetchall()
        
        # ์‚ฌ์ดํŠธ๋ณ„ ํ†ต๊ณ„
        cursor.execute("""
            SELECT site_id, COUNT(*) as count 
            FROM events 
            GROUP BY site_id 
            ORDER BY count DESC
            LIMIT 5
        """)
        site_stats = cursor.fetchall()
        
        # ์ตœ๊ทผ ์ด๋ฒคํŠธ
        cursor.execute("""
            SELECT 
                e.server_timestamp,
                e.event_type,
                e.device_id,
                e.page_url,
                e.site_id
            FROM events e
            ORDER BY e.id DESC
            LIMIT 15
        """)
        recent_events = cursor.fetchall()
        
        # ์‹œ๊ฐ„๋Œ€๋ณ„ ํ†ต๊ณ„
        cursor.execute("""
            SELECT 
                strftime('%H', server_timestamp) as hour,
                COUNT(*) as count
            FROM events
            WHERE DATE(server_timestamp) = DATE('now', 'localtime')
            GROUP BY hour
            ORDER BY hour
        """)
        hourly_stats = cursor.fetchall()
        
        return {
            'total_visitors': total_visitors,
            'today_visitors': today_visitors,
            'total_events': total_events,
            'event_types': event_types,
            'site_stats': site_stats,
            'recent_events': recent_events,
            'hourly_stats': hourly_stats
        }
        
    finally:
        conn.close()

def view_statistics():
    """ํ†ต๊ณ„ ๋ฐ์ดํ„ฐ ํฌ๋งทํŒ…ํ•˜์—ฌ ํ‘œ์‹œ"""
    stats = get_statistics()
    
    summary = f"""
### ๐Ÿ“Š ๋ฐฉ๋ฌธ์ž ํ†ต๊ณ„
- **์ด ๋ฐฉ๋ฌธ์ž**: {stats['total_visitors']}๋ช…
- **์˜ค๋Š˜ ๋ฐฉ๋ฌธ์ž**: {stats['today_visitors']}๋ช…
- **์ด ์ด๋ฒคํŠธ**: {stats['total_events']}ํšŒ
- **๋งˆ์ง€๋ง‰ ์—…๋ฐ์ดํŠธ**: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}

### ๐Ÿ“ˆ ์ด๋ฒคํŠธ ํƒ€์ž…๋ณ„ ํ†ต๊ณ„
"""
    for event_type, count in stats['event_types']:
        summary += f"\n- **{event_type}**: {count:,}ํšŒ"
    
    if stats['site_stats']:
        summary += "\n\n### ๐ŸŒ ์‚ฌ์ดํŠธ๋ณ„ ํ†ต๊ณ„ (์ƒ์œ„ 5๊ฐœ)"
        for site_id, count in stats['site_stats']:
            summary += f"\n- **{site_id}**: {count:,}ํšŒ"
    
    if stats['hourly_stats']:
        summary += "\n\n### โฐ ์˜ค๋Š˜ ์‹œ๊ฐ„๋Œ€๋ณ„ ํ™œ๋™"
        for hour, count in stats['hourly_stats']:
            summary += f"\n- **{hour}์‹œ**: {count}ํšŒ"
    
    summary += "\n\n### ๐Ÿ“ ์ตœ๊ทผ ์ด๋ฒคํŠธ (์ตœ๋Œ€ 15๊ฐœ)"
    for event in stats['recent_events']:
        timestamp, event_type, device_id, page_url, site_id = event
        summary += f"\n- {timestamp} | {event_type} | {device_id[:8]}... | {site_id} | {page_url[:40]}..."
    
    return summary

def get_recent_data():
    """์ตœ๊ทผ ๋ฐ์ดํ„ฐ๋ฅผ DataFrame์œผ๋กœ ๋ฐ˜ํ™˜"""
    conn = sqlite3.connect(DB_FILE)
    
    try:
        query = """
            SELECT 
                e.server_timestamp as 'Timestamp',
                e.device_id as 'Device ID',
                e.event_type as 'Event Type',
                e.page_url as 'Page URL',
                v.platform as 'Platform',
                v.language as 'Language',
                e.site_id as 'Site ID'
            FROM events e
            JOIN visitors v ON e.device_id = v.device_id
            ORDER BY e.id DESC
            LIMIT 200
        """
        
        df = pd.read_sql_query(query, conn)
        return df
        
    finally:
        conn.close()

def export_data(start_date, end_date):
    """๋ฐ์ดํ„ฐ๋ฅผ CSV๋กœ ๋‚ด๋ณด๋‚ด๊ธฐ"""
    conn = sqlite3.connect(DB_FILE)
    
    try:
        query = """
            SELECT 
                e.id,
                e.server_timestamp,
                e.client_timestamp,
                e.device_id,
                e.site_id,
                e.event_type,
                e.event_data,
                e.page_url,
                e.page_title,
                e.referrer,
                v.user_agent,
                v.platform,
                v.language,
                v.screen_resolution,
                v.cpu_cores,
                v.device_memory,
                v.gpu_info,
                v.timezone,
                v.first_seen,
                v.last_seen
            FROM events e
            JOIN visitors v ON e.device_id = v.device_id
            WHERE DATE(e.server_timestamp) BETWEEN ? AND ?
            ORDER BY e.id DESC
        """
        
        df = pd.read_sql_query(query, conn, params=(start_date, end_date))
        
        # CSV ํŒŒ์ผ๋กœ ์ €์žฅ
        filename = f"tracking_export_{start_date}_to_{end_date}.csv"
        df.to_csv(filename, index=False)
        
        return filename, f"โœ… ๋ฐ์ดํ„ฐ๋ฅผ {filename} ํŒŒ์ผ๋กœ ๋‚ด๋ณด๋ƒˆ์Šต๋‹ˆ๋‹ค. ({len(df):,}๊ฐœ ๋ ˆ์ฝ”๋“œ)"
        
    except Exception as e:
        return None, f"โŒ ๋‚ด๋ณด๋‚ด๊ธฐ ์‹คํŒจ: {str(e)}"
    finally:
        conn.close()

def test_tracking():
    """ํ…Œ์ŠคํŠธ ๋ฐ์ดํ„ฐ ์ƒ์„ฑ"""
    test_data = {
        "siteId": "test-site",
        "deviceId": f"TEST_{str(uuid.uuid4())[:8]}",
        "eventType": "test_event",
        "eventData": {"test": True, "timestamp": datetime.now().isoformat()},
        "pageUrl": "https://test.example.com/page",
        "pageTitle": "Test Page",
        "referrer": "https://google.com",
        "userAgent": "Test Browser/1.0",
        "screenResolution": "1920x1080",
        "platform": "Test Platform",
        "language": "ko-KR",
        "timezone": "Asia/Seoul",
        "cpuCores": 8,
        "deviceMemory": 16,
        "gpuInfo": "Test GPU",
        "timestamp": datetime.now().isoformat()
    }
    
    result = process_tracking_data(test_data)
    return f"ํ…Œ์ŠคํŠธ ๊ฒฐ๊ณผ:\n{json.dumps(result, indent=2)}\n\nํ…Œ์ŠคํŠธ ๋ฐ์ดํ„ฐ:\n{json.dumps(test_data, indent=2)}"

def get_db_info():
    """๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์ •๋ณด ์กฐํšŒ"""
    conn = sqlite3.connect(DB_FILE)
    cursor = conn.cursor()
    
    try:
        # DB ํŒŒ์ผ ํฌ๊ธฐ
        db_size = os.path.getsize(DB_FILE) / (1024 * 1024)  # MB
        
        # ํ…Œ์ด๋ธ” ์ •๋ณด
        cursor.execute("""
            SELECT name, sql FROM sqlite_master 
            WHERE type='table' AND name NOT LIKE 'sqlite_%'
        """)
        tables = cursor.fetchall()
        
        # ๋ ˆ์ฝ”๋“œ ์ˆ˜
        cursor.execute("SELECT COUNT(*) FROM visitors")
        visitor_count = cursor.fetchone()[0]
        
        cursor.execute("SELECT COUNT(*) FROM events")
        event_count = cursor.fetchone()[0]
        
        info = f"""
### ๐Ÿ’พ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์ •๋ณด
- **DB ํŒŒ์ผ**: {DB_FILE}
- **ํŒŒ์ผ ํฌ๊ธฐ**: {db_size:.2f} MB
- **๋ฐฉ๋ฌธ์ž ์ˆ˜**: {visitor_count:,}๊ฐœ
- **์ด๋ฒคํŠธ ์ˆ˜**: {event_count:,}๊ฐœ

### ๐Ÿ“‹ ํ…Œ์ด๋ธ” ๊ตฌ์กฐ
"""
        for table_name, sql in tables:
            info += f"\n**{table_name}**\n```sql\n{sql}\n```\n"
        
        return info
        
    finally:
        conn.close()

# ์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ ํ•จ์ˆ˜
def generate_tracking_script(site_id, server_url):
    """์™ธ๋ถ€ ์‚ฌ์ดํŠธ์— ์‚ฝ์ž…ํ•  ์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ"""
    script = f"""
<!-- Visitor Tracking Script -->
<script>
(function() {{
    // ์ถ”์  ์„œ๋ฒ„ URL
    const TRACKING_SERVER = '{server_url}';
    const SITE_ID = '{site_id}';
    
    // ๋””๋ฐ”์ด์Šค ID ์ƒ์„ฑ/์กฐํšŒ
    function getDeviceId() {{
        let deviceId = localStorage.getItem('_tracker_device_id');
        if (!deviceId) {{
            deviceId = 'DEV_' + Date.now() + '_' + Math.random().toString(36).substring(2, 9);
            localStorage.setItem('_tracker_device_id', deviceId);
        }}
        return deviceId;
    }}
    
    // ์ถ”์  ๋ฐ์ดํ„ฐ ์ „์†ก
    async function collectAndSend(eventType = 'pageview', eventData = {{}}) {{
        const data = {{
            siteId: SITE_ID,
            deviceId: getDeviceId(),
            eventType: eventType,
            eventData: eventData,
            pageUrl: window.location.href,
            pageTitle: document.title,
            referrer: document.referrer,
            userAgent: navigator.userAgent,
            screenResolution: screen.width + 'x' + screen.height,
            platform: navigator.platform,
            language: navigator.language,
            timestamp: new Date().toISOString()
        }};
        
        try {{
            const response = await fetch(TRACKING_SERVER + '/call/process_tracking', {{
                method: 'POST',
                headers: {{ 'Content-Type': 'application/json' }},
                body: JSON.stringify({{ data: [JSON.stringify(data)] }})
            }});
            
            if (response.ok) {{
                const result = await response.json();
                if (result.event_id) {{
                    console.log('[Tracker] โœ… Event tracked');
                }}
            }}
        }} catch(e) {{
            console.error('[Tracker] Error:', e);
        }}
    }}
    
    // ์ „์—ญ ์ถ”์  ํ•จ์ˆ˜
    window._tracker = {{
        trackEvent: function(eventName, eventData) {{
            collectAndSend('custom', {{ name: eventName, data: eventData }});
        }}
    }};
    
    // ํŽ˜์ด์ง€ ๋กœ๋“œ์‹œ ์ถ”์ 
    if (document.readyState === 'loading') {{
        document.addEventListener('DOMContentLoaded', () => collectAndSend());
    }} else {{
        collectAndSend();
    }}
}})();
</script>
<!-- End Visitor Tracking Script -->
"""
    return script.strip()

def create_site_id(server_url):
    """์ƒˆ๋กœ์šด ์ถ”์  ์‚ฌ์ดํŠธ ID ์ƒ์„ฑ"""
    if not server_url:
        server_url = "https://your-space-name.hf.space"
    site_id = str(uuid.uuid4())[:8]
    return site_id, generate_tracking_script(site_id, server_url)

# CSS ์Šคํƒ€์ผ
custom_css = """
.gradio-container {
    font-family: 'Arial', sans-serif;
}
.tracking-script {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    font-family: monospace;
    font-size: 12px;
}
.db-info {
    background: #e3f2fd;
    padding: 15px;
    border-radius: 5px;
    margin: 10px 0;
}
"""

# Gradio UI
with gr.Blocks(title="๋ฐฉ๋ฌธ์ž ์ถ”์  ๊ด€๋ฆฌ ์‹œ์Šคํ…œ", css=custom_css, theme=gr.themes.Soft()) as demo:
    gr.Markdown("""
    # ๐Ÿ” ๋ฐฉ๋ฌธ์ž ์ถ”์  ๊ด€๋ฆฌ ์‹œ์Šคํ…œ
    
    ### ์™ธ๋ถ€ ์›น์‚ฌ์ดํŠธ์— ์ถ”์  ์Šคํฌ๋ฆฝํŠธ๋ฅผ ์‚ฝ์ž…ํ•˜์—ฌ ๋ฐฉ๋ฌธ์ž๋ฅผ ๋ชจ๋‹ˆํ„ฐ๋งํ•ฉ๋‹ˆ๋‹ค.
    
    > โœ… **SQLite ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค์— ๋ชจ๋“  ๋ฐ์ดํ„ฐ๊ฐ€ ์˜๊ตฌ ์ €์žฅ๋ฉ๋‹ˆ๋‹ค.**
    """)
    
    # ์ˆจ๊ฒจ์ง„ API ์ฒ˜๋ฆฌ (์˜ฌ๋ฐ”๋ฅธ ๋ฐฉ์‹)
    with gr.Column(visible=False):
        api_input = gr.Textbox(label="API Input")
        api_output = gr.JSON(label="API Output")
        api_button = gr.Button("Process Tracking Data")
        
        # Button click์— api_name ์ง€์ •
        api_button.click(
            fn=process_tracking_data,
            inputs=api_input,
            outputs=api_output,
            api_name="process_tracking"
        )
    
    with gr.Tab("๐Ÿ”ง ์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ"):
        gr.Markdown("### ์ƒˆ๋กœ์šด ์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ")
        
        with gr.Row():
            with gr.Column():
                server_url_input = gr.Textbox(
                    label="์ถ”์  ์„œ๋ฒ„ URL",
                    placeholder="https://your-space-name.hf.space",
                    info="์ด Hugging Face Space์˜ URL์„ ์ž…๋ ฅํ•˜์„ธ์š”"
                )
                
                gr.Markdown("""
                โ„น๏ธ **์„œ๋ฒ„ URL ์ฐพ๊ธฐ**:
                1. ์ด Space์˜ URL์„ ํ™•์ธํ•˜์„ธ์š”
                2. ํ˜•์‹: `https://username-spacename.hf.space`
                3. ์˜ˆ์‹œ: `https://seawolf2357-evcook.hf.space`
                """)
        
        create_btn = gr.Button("๐Ÿ”ง ์ƒˆ ์ถ”์  ์ฝ”๋“œ ์ƒ์„ฑ", variant="primary")
        
        with gr.Row():
            site_id_output = gr.Textbox(label="์‚ฌ์ดํŠธ ID", interactive=False)
        
        script_output = gr.Code(
            label="HTML์— ์‚ฝ์ž…ํ•  ์ถ”์  ์Šคํฌ๋ฆฝํŠธ", 
            language="html",
            interactive=True,
            elem_classes="tracking-script"
        )
        
        create_btn.click(
            fn=create_site_id,
            inputs=[server_url_input],
            outputs=[site_id_output, script_output],
            api_name="create_site_id"
        )
    
    with gr.Tab("๐Ÿ“Š ํ†ต๊ณ„ ๋Œ€์‹œ๋ณด๋“œ"):
        gr.Markdown("### ๐Ÿ“Š ์‹ค์‹œ๊ฐ„ ๋ฐฉ๋ฌธ์ž ํ†ต๊ณ„")
        
        with gr.Row():
            refresh_btn = gr.Button("๐Ÿ”„ ํ†ต๊ณ„ ์ƒˆ๋กœ๊ณ ์นจ", variant="secondary")
            test_btn = gr.Button("๐Ÿงช ํ…Œ์ŠคํŠธ ๋ฐ์ดํ„ฐ ์ƒ์„ฑ", variant="secondary")
            db_info_btn = gr.Button("๐Ÿ’พ DB ์ •๋ณด ๋ณด๊ธฐ", variant="secondary")
        
        stats_output = gr.Markdown()
        test_output = gr.Textbox(label="ํ…Œ์ŠคํŠธ ๊ฒฐ๊ณผ", visible=False)
        db_info_output = gr.Markdown(visible=False, elem_classes="db-info")
        
        # ํŽ˜์ด์ง€ ๋กœ๋“œ ์‹œ ํ†ต๊ณ„ ํ‘œ์‹œ
        demo.load(fn=view_statistics, outputs=stats_output, api_name="view_statistics")
        refresh_btn.click(fn=view_statistics, outputs=stats_output, api_name="view_statistics_1")
        
        def test_and_refresh():
            test_result = test_tracking()
            stats = view_statistics()
            return stats, gr.update(visible=True, value=test_result)
        
        test_btn.click(
            fn=test_and_refresh,
            outputs=[stats_output, test_output],
            api_name="test_and_refresh"
        )
        
        def show_db_info():
            info = get_db_info()
            return gr.update(visible=True, value=info)
        
        db_info_btn.click(
            fn=show_db_info,
            outputs=db_info_output,
            api_name="show_db_info"
        )
    
    with gr.Tab("๐Ÿ“ ๋ฐ์ดํ„ฐ ๋ทฐ์–ด"):
        gr.Markdown("### ๐Ÿ“ ์ตœ๊ทผ ์ถ”์  ๋ฐ์ดํ„ฐ")
        
        data_refresh_btn = gr.Button("๐Ÿ”„ ๋ฐ์ดํ„ฐ ์ƒˆ๋กœ๊ณ ์นจ")
        data_output = gr.Dataframe(
            headers=["Timestamp", "Device ID", "Event Type", "Page URL", "Platform", "Language", "Site ID"],
            label="์ตœ๊ทผ ์ด๋ฒคํŠธ (์ตœ๋Œ€ 200๊ฐœ)"
        )
        
        demo.load(fn=get_recent_data, outputs=data_output, api_name="get_recent_data")
        data_refresh_btn.click(fn=get_recent_data, outputs=data_output, api_name="get_recent_data_1")
        
        gr.Markdown("### ๐Ÿ“ฅ ๋ฐ์ดํ„ฐ ๋‚ด๋ณด๋‚ด๊ธฐ")
        with gr.Row():
            start_date = gr.Textbox(
                label="์‹œ์ž‘ ๋‚ ์งœ",
                placeholder="2025-01-01",
                value=datetime.now().strftime('%Y-%m-%d')
            )
            end_date = gr.Textbox(
                label="์ข…๋ฃŒ ๋‚ ์งœ",
                placeholder="2025-01-31",
                value=datetime.now().strftime('%Y-%m-%d')
            )
            export_btn = gr.Button("๐Ÿ’พ CSV๋กœ ๋‚ด๋ณด๋‚ด๊ธฐ", variant="primary")
        
        export_output = gr.Textbox(label="๋‚ด๋ณด๋‚ด๊ธฐ ๊ฒฐ๊ณผ")
        
        export_btn.click(
            fn=export_data,
            inputs=[start_date, end_date],
            outputs=[gr.File(label="๋‹ค์šด๋กœ๋“œ ํŒŒ์ผ"), export_output],
            api_name="export_data"
        )
    
    with gr.Tab("โ“ ๋„์›€๋ง"):
        gr.Markdown("""
        ### ๐Ÿš€ ๋น ๋ฅธ ์‹œ์ž‘ ๊ฐ€์ด๋“œ
        
        1. **์ด Space์˜ URL ํ™•์ธ**
           - ๋ธŒ๋ผ์šฐ์ € ์ฃผ์†Œ์ฐฝ์—์„œ URL ๋ณต์‚ฌ
           - ์˜ˆ: `https://username-spacename.hf.space`
        
        2. **์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ**
           - "์ถ”์  ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ" ํƒญ์œผ๋กœ ์ด๋™
           - URL ์ž…๋ ฅ ํ›„ ์Šคํฌ๋ฆฝํŠธ ์ƒ์„ฑ
        
        3. **์›น์‚ฌ์ดํŠธ์— ์„ค์น˜**
           ```html
           <!-- ์—ฌ๊ธฐ์— ์ƒ์„ฑ๋œ ์Šคํฌ๋ฆฝํŠธ ๋ถ™์—ฌ๋„ฃ๊ธฐ -->
           </body>
           </html>
           ```
        
        4. **์ถ”์  ํ™•์ธ**
           - "ํ†ต๊ณ„ ๋Œ€์‹œ๋ณด๋“œ" ํƒญ์—์„œ ์‹ค์‹œ๊ฐ„ ๋ชจ๋‹ˆํ„ฐ๋ง
        
        ### ๐Ÿ’พ ๋ฐ์ดํ„ฐ ์ €์žฅ
        - **SQLite DB ํŒŒ์ผ**: `tracking_data.db`
        - **์ž๋™ ์ €์žฅ**: ๋ชจ๋“  ์ด๋ฒคํŠธ๊ฐ€ ์‹ค์‹œ๊ฐ„์œผ๋กœ DB์— ์ €์žฅ
        - **์˜๊ตฌ ๋ณด๊ด€**: ์„œ๋ฒ„ ์žฌ์‹œ์ž‘ ํ›„์—๋„ ๋ฐ์ดํ„ฐ ์œ ์ง€
        
        ### ๐Ÿ“ก API ์‚ฌ์šฉ๋ฒ•
        ```javascript
        // Gradio Client API ์‚ฌ์šฉ
        fetch('https://your-space.hf.space/call/process_tracking', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({
                data: [JSON.stringify({
                    siteId: 'your-site-id',
                    deviceId: 'device-id',
                    eventType: 'pageview',
                    // ... ๊ธฐํƒ€ ๋ฐ์ดํ„ฐ
                })]
            })
        });
        ```
        """)

# ์•ฑ ์‹คํ–‰
if __name__ == "__main__":
    demo.queue().launch()

# requirements.txt ๋‚ด์šฉ:
"""
gradio==4.44.1
pandas==2.2.3
"""