import os
import re
import json
import urllib.request
import urllib.parse
import sys
from datetime import datetime
import requests
try:
    from curl_cffi import requests as requests_cffi
    HAS_CURL_CFFI = True
except ImportError:
    HAS_CURL_CFFI = False
from googlenewsdecoder import new_decoderv1


sys.stdout.reconfigure(encoding='utf-8')
sys.stderr.reconfigure(encoding='utf-8')

# Dynamic path for importing WatermarkRemover
sys.path.insert(0, r"C:\Roaming\scripts")
try:
    from news_collector.watermark_remover import WatermarkRemover
    HAS_REMOVER = True
except ImportError:
    HAS_REMOVER = False


ROOT_DIR = r"C:\ComfyUI\Articles"
HISTORY_FILE = os.path.join(ROOT_DIR, "history.json")
PENDING_FILE = os.path.join(ROOT_DIR, "pending.json")
SYNTHESIS_FILE = os.path.join(ROOT_DIR, "synthesis_output.json")

TEST_VIDEO_URL = "https://www.w3schools.com/html/mov_bbb.mp4"

# Fallback images removed for authentic scraping

def load_json(path, default):
    if os.path.exists(path):
        try:
            with open(path, 'r', encoding='utf-8') as f:
                return json.load(f)
        except Exception as e:
            print(f"Failed to load JSON {path}: {e}")
    return default

def save_json(path, data):
    try:
        with open(path, 'w', encoding='utf-8') as f:
            json.dump(data, f, indent=4, ensure_ascii=False)
    except Exception as e:
        print(f"Failed to save JSON {path}: {e}")

def extract_main_word(title):
    # Replace underscores and commas with spaces to handle words correctly
    title = title.replace('_', ' ').replace(',', ' ')
    
    is_ja = any(ord(char) > 0x3000 for char in title)
    
    # Clean title from source marks
    cleaned = re.sub(r'\s*-\s*[^-\s]+(?:ニュース|新聞|オンライン|net|jp|com|JAPAN|Jpn|DIG|WSJ| Forbes|産経|共同|時事|読売|朝日|毎日|毎日新聞|株探|かぶたん|note|AFPBB|Gizmodo|MONOist|Impress|Real Sound|デイリー|西日本|沖縄|神戸|下野|福島|東奥|愛媛|福井|佐賀)\s*$', '', title, flags=re.IGNORECASE)
    cleaned = re.sub(r'_[^_]+(?:ニュース|新聞|オンライン|net|jp|com|JAPAN|Jpn|DIG|WSJ| Forbes|産経|共同|時事|読売|朝日|毎日|毎日新聞|株探|かぶたん|note|AFPBB|Gizmodo|MONOist|Impress|Real Sound|デイリー|西日本|沖縄|神戸|下野|福島|東奥|愛媛|福井|佐賀)\s*$', '', cleaned, flags=re.IGNORECASE)
    
    blacklisted = ["ai", "artificial intelligence", "人工知能", "生成ai", "生成系ai"]
    
    def is_valid(word):
        if not word:
            return False
        return word.strip().lower() not in blacklisted

    # 1. Look for quotes like 「...」
    quotes_ja = re.findall(r'「([^」]+)」', cleaned)
    for q in quotes_ja:
        if is_valid(q):
            return q
            
    quotes_en = re.findall(r'["\']([^"\']+)["\']', cleaned)
    for q in quotes_en:
        if len(q) < 25 and is_valid(q):
            return q

    # 2. Known key entities list
    known_keywords = [
        "OpenAI", "Google", "Amazon", "Bezos", "Trump", "Anthropic", "Microsoft", "Apple", "Nvidia", "Meta", "Musk",
        "大谷", "オオタニ", "大谷翔平", "小田急", "ソニー", "ソフトバンク", "ChatGPT", "Claude", "IOWN", "サカナAI"
    ]
    for kw in known_keywords:
        if kw.lower() in cleaned.lower() and is_valid(kw):
            m = re.search(re.escape(kw), cleaned, re.IGNORECASE)
            if m:
                return m.group(0)

    if is_ja:
        # Katakana sequences
        katakana = re.findall(r'[\u30a1-\u30fc]{2,}', cleaned)
        for k in katakana:
            if is_valid(k):
                return k
        # Kanji sequences
        kanji = re.findall(r'[\u4e00-\u9fff]{2,}', cleaned)
        for k in kanji:
            if k not in ["米国", "日本", "市場", "世界", "政府", "計画", "導入"] and is_valid(k):
                return k
        if kanji:
            for k in kanji:
                if is_valid(k):
                    return k
        # Alphabetic words
        alpha = re.findall(r'[a-zA-Z0-9]{2,}', cleaned)
        for a in alpha:
            if is_valid(a):
                return a
    else:
        words = re.findall(r'\b[A-Z][a-zA-Z0-9]*\b', cleaned)
        if words:
            for w in words:
                if w.lower() not in ["a", "an", "the", "in", "on", "at", "for", "to", "of", "and", "or", "but", "with", "by", "is", "are", "was", "were"] and is_valid(w):
                    return w
            for w in words:
                if is_valid(w):
                    return w
        
    first_token = re.search(r'\w+', cleaned)
    if first_token and is_valid(first_token.group(0)):
        return first_token.group(0)
        
    return ""

def safe_filename(name, max_len=40):
    main_word = extract_main_word(name).strip()
    
    cleaned = name.replace('_', ' ').replace(',', ' ')
    cleaned = re.sub(r'[\\/*?:"<>|\'\`\(\)\[\]]', ' ', cleaned)
    cleaned = re.sub(r'\s+', ' ', cleaned).strip()
    
    if main_word:
        if cleaned.lower().startswith(main_word.lower()):
            final_title = cleaned
        else:
            final_title = f"{main_word} {cleaned}"
    else:
        final_title = cleaned
        
    final_title = re.sub(r'\s+', ' ', final_title).strip()
    
    if len(final_title) > max_len:
        final_title = final_title[:max_len].strip()
        final_title = re.sub(r'[\s\.,\-_\+!@#\$%^&\*]+$', '', final_title)
        
    return final_title

def to_file_uri(path):
    path_part = path.replace(os.sep, '/')
    return f"file:///{path_part.replace(' ', '%20')}"

def to_markdown_absolute_path(path):
    return path.replace(os.sep, '/')

def download_file(url, dest_path):
    print(f"Downloading: {url} -> {dest_path}")
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
        "Accept": "image/webp,image/apng,image/*,*/*;q=0.8",
        "Accept-Language": "ja,en-US;q=0.9,en;q=0.8",
        "Referer": "https://news.google.com/"
    }
    try:
        os.makedirs(os.path.dirname(dest_path), exist_ok=True)
        if HAS_CURL_CFFI:
            response = requests_cffi.get(url, headers=headers, impersonate="chrome120", timeout=30)
        else:
            response = requests.get(url, headers=headers, timeout=30)
        response.raise_for_status()
        with open(dest_path, 'wb') as f:
            f.write(response.content)
            
        if os.path.exists(dest_path) and os.path.getsize(dest_path) > 0:
            print(f"Download success: {dest_path} ({os.path.getsize(dest_path)} bytes)")
            return True
        else:
            print(f"Downloaded file is empty: {dest_path}")
            if os.path.exists(dest_path):
                os.remove(dest_path)
            return False
    except Exception as e:
        print(f"Failed to download {url}: {e}")
        if os.path.exists(dest_path):
            try:
                os.remove(dest_path)
            except:
                pass
        return False

def is_valid_image(img_url, img_path):
    # 1. URL Substring Check
    url_lower = img_url.lower()
    
    # Generic keywords indicating logos, default fallback pictures, ads, etc.
    blacklist_keywords = [
        "logo", "avatar", "favicon", "icon", "placeholder", "default", "fallback", 
        "dummy", "spacer", "pixel", "header", "footer", "ad-", "ads-", 
        "advertisement", "newsletter", "subscribe", "sign-up", "social-share", 
        "facebook-share", "twitter-share", "share-icon", "share-logo",
        "app-store", "play-store", "transparent", "blank", "branding"
    ]
    
    # Also block specific generic image names commonly used by news outlets
    # e.g., Yahoo, Reuters, AP, Bloomberg, BBC, etc. logos or generic graphics
    generic_patterns = [
        "reuters-logo", "reuters_logo", "nytimes-logo", "nytimes_logo",
        "ap-logo", "ap_logo", "bbc-logo", "bbc_logo", "cnn-logo", "cnn_logo",
        "bloomberg-logo", "bloomberg_logo", "yahoo-logo", "yahoo_logo",
        "wsj_logo", "wsj-logo", "guardian-logo", "guardian_logo"
    ]
    
    for kw in blacklist_keywords:
        if kw in url_lower:
            print(f"      Rejecting image URL (matches blacklist keyword '{kw}'): {img_url}")
            return False
            
    for pat in generic_patterns:
        if pat in url_lower:
            print(f"      Rejecting image URL (matches generic logo pattern '{pat}'): {img_url}")
            return False

    # 2. Image Content Check (using Pillow)
    if not os.path.exists(img_path):
        return False
        
    try:
        from PIL import Image, ImageStat
        with Image.open(img_path) as img:
            width, height = img.size
            
            # Aspect Ratio
            aspect_ratio = width / height
            
            # Minimum dimension requirements
            min_width = 300
            min_height = 200
            
            if width < min_width or height < min_height:
                print(f"      Rejecting image (too small: {width}x{height}, required min {min_width}x{min_height})")
                return False
                
            # Aspect Ratio Check (block extremely wide/tall banner or ad layout blocks)
            if aspect_ratio < 0.5 or aspect_ratio > 3.0:
                print(f"      Rejecting image (extreme aspect ratio: {aspect_ratio:.2f})")
                return False
                
            # Perfect square check (width == height) for small images (usually logos/avatars)
            if width == height and width < 450:
                print(f"      Rejecting image (square logo/avatar heuristic: {width}x{height})")
                return False
                
            # Standard Deviation check (blank or solid color placeholder images)
            # A natural photograph typically has standard deviation > 10.
            # Spacer GIFs or blank images will have standard deviation near 0.
            stat = ImageStat.Stat(img)
            # Check standard deviation of all bands (RGB / RGBA / L)
            std_devs = stat.stddev
            if std_devs and all(sd < 3.0 for sd in std_devs):
                print(f"      Rejecting image (low variance / solid color placeholder: stddev={std_devs})")
                return False
                
    except ImportError:
        print("      Warning: Pillow (PIL) is not installed. Skipping image dimension and content validation.")
    except Exception as e:
        print(f"      Warning: Failed to validate image content properties: {e}")
        
    return True

def extract_og_image(url):
    print(f"Extracting og:image from: {url}")
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "Accept-Language": "ja,en-US;q=0.9,en;q=0.8",
        "Referer": "https://news.google.com/"
    }
    try:
        if HAS_CURL_CFFI:
            response = requests_cffi.get(url, headers=headers, impersonate="chrome120", timeout=15)
        else:
            response = requests.get(url, headers=headers, timeout=15)
        response.raise_for_status()
        html = response.text
        m = re.search(r'<meta[^>]*property=[\'"]og:image[\'"][^>]*content=[\'"]([^\'"]+)[\'"]', html, re.I)
        if m:
            return m.group(1)
        m2 = re.search(r'<meta[^>]*content=[\'"]([^\'"]+)[\'"][^>]*property=[\'"]og:image[\'"]', html, re.I)
        if m2:
            return m2.group(1)
    except Exception as e:
        print(f"Failed to fetch og:image from {url}: {e}")
    return None


def finalize_article(category, title, link, article_content, source_file):
    print(f"\nFinalizing article: {title} under category: {category}")
    
    safe_title = safe_filename(title)
    
    # Determine language (ja-JP if title contains Japanese characters, else en-US)
    is_ja = any(ord(char) > 0x3000 for char in title)
    lang = "ja-JP" if is_ja else "en-US"
    
    # Map raw RSS category to directory category name
    CAT_MAP = {
        "Business": "Business_and_Economy",
        "World_Affairs": "World_Affairs",
        "General": "General_News",
        "Animals": "Science_and_Animals"
    }
    cat_folder = CAT_MAP.get(category, "Uncategorized")
    
    # Create article-specific directory structure under appropriate language/category
    article_dir = os.path.join(ROOT_DIR, lang, cat_folder, safe_title)
    images_dir = os.path.join(article_dir, "images")
    sources_dir = os.path.join(article_dir, "sources")
    
    os.makedirs(images_dir, exist_ok=True)
    os.makedirs(sources_dir, exist_ok=True)
    
    # 1. Rename raw source file and collect details
    downloaded_sources = []
    if source_file and os.path.exists(source_file):
        final_filename = f"{safe_title}_source_1.txt"
        final_dest = os.path.join(sources_dir, final_filename)
        try:
            if os.path.exists(final_dest):
                os.remove(final_dest)
            os.rename(source_file, final_dest)
            downloaded_sources.append((title, to_file_uri(final_dest)))
            print(f"Moved source file: {source_file} -> {final_dest}")
        except Exception as e:
            print(f"Failed to move source file {source_file} to {final_dest}: {e}")
            downloaded_sources.append((title, to_file_uri(source_file)))
    else:
        print(f"Source file not found or not specified for: {title}")
        
    # 2. Download authentic images from source link
    image_urls = []
    
    decoded_link = link
    if "news.google.com" in link:
        try:
            res = new_decoderv1(link, interval=1)
            if res.get("status"):
                decoded_link = res["decoded_url"]
                print(f"Decoded Google News URL for image extraction: {decoded_link}")
        except Exception as e:
            print(f"Failed to decode Google News URL {link} for image extraction: {e}")
            
    og_img = extract_og_image(decoded_link)
    if og_img:
        image_urls.append(og_img)
        
    downloaded_images = []
    
    # Initialize WatermarkRemover if available
    from pathlib import Path
    remover = WatermarkRemover(Path(ROOT_DIR)) if HAS_REMOVER else None
    
    for idx, url in enumerate(image_urls[:2], 1):
        img_filename = f"{safe_title}_img{idx}.jpg"
        img_dest = os.path.join(images_dir, img_filename)
        success = download_file(url, img_dest)
            
        if success:
            if not is_valid_image(url, img_dest):
                print(f"Rejected downloaded image as unrelated: {url}")
                if os.path.exists(img_dest):
                    try:
                        os.remove(img_dest)
                    except:
                        pass
                continue
                
            downloaded_images.append(img_dest)
            if remover:
                try:
                    remover.remove_watermark(Path(img_dest), decoded_link)
                except Exception as rem_err:
                    print(f"Failed to remove watermark for {img_dest}: {rem_err}")

    # 3. No related video briefing available by default. Omit placeholder.
    video_embed_md = ""

    # 4. Inject Carousel at the top (right after title or date)
    if downloaded_images:
        lines = article_content.splitlines()
        title_idx = -1
        for i, line in enumerate(lines):
            if line.strip().startswith("# "):
                title_idx = i
                break
        
        date_idx = -1
        if title_idx != -1:
            for i in range(title_idx + 1, len(lines)):
                if lines[i].strip():
                    date_idx = i
                    break
        
        insert_idx = -1
        if date_idx != -1:
            insert_idx = date_idx + 1
        elif title_idx != -1:
            insert_idx = title_idx + 1
        
        if insert_idx != -1:
            carousel_lines = ["", "```carousel"]
            for j, img_path in enumerate(downloaded_images, 1):
                if j > 1:
                    carousel_lines.append("<!-- slide -->")
                carousel_lines.append(f"![Visual Theme {j}]({to_markdown_absolute_path(img_path)})")
            carousel_lines.append("```")
            carousel_lines.append("")
            lines = lines[:insert_idx] + carousel_lines + lines[insert_idx:]
            article_content = "\n".join(lines)

    # 5. Inject Video embed before the footer
    if video_embed_md:
        footer_idx = article_content.rfind("---")
        if footer_idx != -1:
            article_content = article_content[:footer_idx] + video_embed_md + article_content[footer_idx:]
        else:
            article_content += video_embed_md

    # 6. Inject Source document preview iframe before the footer
    if downloaded_sources:
        sources_preview_md = "\n\n### Original Source Document Previews\n"
        for title_src, uri in downloaded_sources[:3]:
            sources_preview_md += f"#### {title_src}\n<iframe src=\"{uri}\" width=\"100%\" height=\"450px\" style=\"border: 1px solid #ccc; margin-bottom: 20px;\"></iframe>\n"
        
        footer_idx = article_content.rfind("---")
        if footer_idx != -1:
            article_content = article_content[:footer_idx] + sources_preview_md + article_content[footer_idx:]
        else:
            article_content += sources_preview_md

    # 7. Save the final Markdown file inside the article directory
    dest_file_path = os.path.join(article_dir, f"{safe_title}.md")
    try:
        with open(dest_file_path, 'w', encoding='utf-8') as f:
            f.write(article_content)
        print(f"Saved Article successfully: {dest_file_path}")
        
        # 7.5. Check if it's Russian, Ukrainian, or independent media to assign S-Tier (tier 1)
        is_s_tier = False
        s_tier_domains = [
            "meduza.io", "themoscowtimes.com", "kyivindependent.com", "pravda.com.ua", 
            "novayagazeta.eu", "novayagazeta.ru", "zona.media", "mediazona.ca", 
            "tvrain.tv", "tvrain.ru", "istories.media", "theins.ru", "theins.press", 
            "verstka.media", "currenttime.tv", "rferl.org", "unian.net", "unian.info", 
            "euromaidanpress.com", "ukrinform.net", "ukrinform.ua", "hromadske.ua"
        ]
        link_lower = link.lower()
        decoded_link_lower = decoded_link.lower()
        if any(domain in link_lower or domain in decoded_link_lower for domain in s_tier_domains):
            is_s_tier = True
            
        if is_s_tier:
            meta_dest = os.path.join(article_dir, f"{safe_title}.json")
            try:
                with open(meta_dest, 'w', encoding='utf-8') as mf:
                    json.dump({
                        "importance": 9,
                        "urgency": 9,
                        "tier": 1
                    }, mf, indent=4)
                print(f"Automatically assigned S-Tier (tier 1) for independent RU/UA source: {meta_dest}")
            except Exception as e:
                print(f"Failed to write S-Tier metadata for {safe_title}: {e}")
                
        return True
    except Exception as e:
        print(f"Failed to save article {safe_title}: {e}")
        return False

def main():
    print(f"Starting finalization at {datetime.now().isoformat()}")
    synthesis_data = load_json(SYNTHESIS_FILE, [])
    if not synthesis_data:
        print("No synthesis data found. Exiting.")
        return []

    history = load_json(HISTORY_FILE, {})
    pending_list = load_json(PENDING_FILE, [])
    
    processed_count = 0
    newly_processed_urls = set()
    finalized_dirs = []
    
    for article_dict in synthesis_data:
        category = article_dict.get("category")
        title = article_dict.get("title")
        link = article_dict.get("link")
        markdown = article_dict.get("markdown")
        source_file = article_dict.get("source_file")
        
        if not markdown or not link:
            continue
            
        success = finalize_article(category, title, link, markdown, source_file)
        if success:
            processed_count += 1
            newly_processed_urls.add(link)
            history[link] = {
                "title": title,
                "collected_at": datetime.now().isoformat(),
                "category": category
            }
            # Reconstruct the exact path where the article was finalized
            safe_title = safe_filename(title)
            is_ja = any(ord(char) > 0x3000 for char in title)
            lang = "ja-JP" if is_ja else "en-US"
            CAT_MAP = {
                "Business": "Business_and_Economy",
                "World_Affairs": "World_Affairs",
                "General": "General_News",
                "Animals": "Science_and_Animals"
            }
            cat_folder = CAT_MAP.get(category, "Uncategorized")
            article_dir = os.path.join(ROOT_DIR, lang, cat_folder, safe_title)
            finalized_dirs.append(article_dir)
                
    if processed_count > 0:
        if len(history) > 2000:
            sorted_keys = sorted(history.keys(), key=lambda k: history[k].get("collected_at", ""))
            for k in sorted_keys[:len(history) - 2000]:
                del history[k]
        save_json(HISTORY_FILE, history)
        
        updated_pending = [item for item in pending_list if item["link"] not in newly_processed_urls]
        save_json(PENDING_FILE, updated_pending)
        
        print(f"Successfully finalized {processed_count} articles.")
    
    # Clean up temp_sources directory if empty
    temp_sources_dir = os.path.join(ROOT_DIR, "temp_sources")
    if os.path.exists(temp_sources_dir):
        try:
            if not os.listdir(temp_sources_dir):
                os.rmdir(temp_sources_dir)
                print("Removed empty temp_sources directory.")
        except Exception as e:
            print(f"Failed to check/remove temp_sources directory: {e}")

    if os.path.exists(SYNTHESIS_FILE):
        try:
            os.remove(SYNTHESIS_FILE)
            print("Cleared synthesis_output.json")
        except Exception as e:
            print(f"Failed to delete synthesis_output.json: {e}")
            
    return finalized_dirs

if __name__ == "__main__":
    main()