import facebook
import requests

from func_ai import analyze_sentiment

GRAPH_API_URL = 'https://graph.facebook.com/v20.0'


def hide_negative_comments(token):
    def init_facebook_client(token):
        return facebook.GraphAPI(access_token=token)

    def get_facebook_posts():
        graph = init_facebook_client(token)
        posts_data = graph.get_object(id='me/posts', fields='id,message,created_time')
        return posts_data.get('data', [])



    def get_comments_for_post(post_id):
        graph = init_facebook_client(token)
        comments = []
        url = f'{post_id}/comments'
        params = {'fields': 'id,message,is_hidden'}
        while True:
            comments_data = graph.get_object(id=url, **params)
            visible_comments = [comment for comment in comments_data.get('data', []) if not comment.get('is_hidden', False)]
            comments.extend(visible_comments)
            if 'paging' in comments_data and 'next' in comments_data['paging']:
                url = comments_data['paging']['next']
                params = {}  # The 'next' URL already includes access token and fields
            else:
                break
        return comments

    def filter_comments(comments, sentiments):
        print("Фильтруем негативные комментарии.")
        negative_comments = []
        for comment, sentiment in zip(comments, sentiments):
            if sentiment['label'].lower() == 'negative':
                print(f"Найден негативный комментарий: {comment['message']}")
                negative_comments.append(comment)
        return negative_comments

    def hide_comment(comment_id):
        graph = init_facebook_client(token)
        try:
            graph.request(f'{comment_id}', post_args={'is_hidden': True}, method='POST')
            return True
        except facebook.GraphAPIError as e:
            print(f"Ошибка при скрытии комментария {comment_id}: {e}")
            return False

    posts = get_facebook_posts()
    if not posts:
        print("Нет постов для обработки.")
        return []

    hidden_comments_per_post = []
    for post in posts:
        post_id = post['id']
        post_message = post.get('message', '')
        comments = get_comments_for_post(post_id)
        if not comments:
            print(f"Нет комментариев для поста {post_id}.")
            continue

        comments_text = [comment['message'] for comment in comments]
        sentiments = analyze_sentiment(comments_text)
        negative_comments = filter_comments(comments, sentiments)

        hidden_comments = []
        for comment in negative_comments:
            if hide_comment(comment['id']):
                hidden_comments.append({
                    'id': comment['id'],
                    'message': comment['message']
                })

        if hidden_comments:
            hidden_comments_per_post.append({
                'post_id': post_id,
                'post_message': post_message,
                'hidden_comments': hidden_comments
            })

    return hidden_comments_per_post


def get_page_id(page_access_token):
    url = f"{GRAPH_API_URL}/me"
    params = {
        "access_token": page_access_token,
        "fields": "id,name"
    }
    response = requests.get(url, params=params)
    data = response.json()
    if 'error' in data:
        print(f"Ошибка при получении ID страницы: {data['error']}")
        return None
    return data.get("id")


def get_posts(page_id, page_access_token):
    url = f"{GRAPH_API_URL}/{page_id}/posts"
    params = {
        "access_token": page_access_token,
        "fields": "id,message"
    }
    posts = []
    while True:
        response = requests.get(url, params=params)
        data = response.json()
        if 'error' in data:
            print(f"Ошибка при получении постов: {data['error']}")
            break
        posts.extend(data.get("data", []))
        if 'paging' in data and 'next' in data['paging']:
            url = data['paging']['next']
            params = {}  # Следующие запросы уже содержат все параметры в URL
        else:
            break
    return posts


def get_comments(post_id, page_access_token):
    url = f"{GRAPH_API_URL}/{post_id}/comments"
    params = {
        "access_token": page_access_token,
        "fields": "id,from,message,is_hidden",
    }
    comments = []
    while True:
        response = requests.get(url, params=params)
        data = response.json()
        if 'error' in data:
            print(f"Ошибка при получении комментариев к посту {post_id}: {data['error']}")
            break
        comments.extend(data.get("data", []))
        if 'paging' in data and 'next' in data['paging']:
            url = data['paging']['next']
            params = {}
        else:
            break
    return comments


def has_page_replied(comment_id, page_id, page_access_token):
    url = f"{GRAPH_API_URL}/{comment_id}/comments"
    params = {
        "access_token": page_access_token,
        "fields": "from{id}",
    }
    while True:
        response = requests.get(url, params=params)
        data = response.json()
        if 'error' in data:
            print(f"Ошибка при получении ответов на комментарий {comment_id}: {data['error']}")
            return False
        for reply in data.get("data", []):
            if reply['from']['id'] == page_id:
                return True
        if 'paging' in data and 'next' in data['paging']:
            url = data['paging']['next']
            params = {}
        else:
            break
    return False


def get_unanswered_comments(page_access_token):
    page_id = get_page_id(page_access_token)
    if not page_id:
        return []

    print(f"ID Страницы: {page_id}")
    posts = get_posts(page_id, page_access_token)
    posts_with_unanswered_comments = []

    for post in posts:
        post_id = post['id']
        post_message = post.get('message', '')
        print(f"Обработка поста: {post_id}")
        comments = get_comments(post_id, page_access_token)

        unanswered_comments = []

        for comment in comments:
            if comment.get('is_hidden', False):
                continue
            comment_id = comment['id']
            print(f"Проверка комментария: {comment_id}")
            if not has_page_replied(comment_id, page_id, page_access_token):
                unanswered_comments.append(comment)

        if unanswered_comments:
            posts_with_unanswered_comments.append({
                'post_id': post_id,
                'post_message': post_message,
                'unanswered_comments': unanswered_comments
            })

    return posts_with_unanswered_comments


def reply_comment(comment_id, message, token):
    url = f"{GRAPH_API_URL}/{comment_id}/comments"
    params = {
        'access_token': token,
        'message': message
    }
    response = requests.post(url, params=params)
    if response.status_code == 200:
        print(f"Ответ успешно отправлен на комментарий {comment_id}.")
        return True
    else:
        print(f"Ошибка при отправке ответа: {response.text}")
        return False