from http import HTTPMethod
from urllib.parse import urlparse
from common.utils import http_request

APIFY_BASE = "https://api.apify.com/v2"


class ApifyClient:
    def __init__(self, token: str, wait_for_finish: int = 120):
        self.token = token
        self.wait_for_finish = wait_for_finish

    async def _run_actor(self, actor_id: str, input_data: dict) -> list[dict]:
        resp = await http_request(
            HTTPMethod.POST,
            url=f"{APIFY_BASE}/acts/{actor_id}/runs",
            params={"token": self.token, "waitForFinish": self.wait_for_finish},
            headers={"Content-Type": "application/json"},
            json_body=input_data,
            timeout=self.wait_for_finish + 10,
            label=f"apify:{actor_id.split('~')[-1]}",
        )
        if not resp or not resp.is_success:
            return []
        dataset_id = resp.json()["data"]["defaultDatasetId"]
        items_resp = await http_request(
            HTTPMethod.GET,
            url=f"{APIFY_BASE}/datasets/{dataset_id}/items",
            params={"token": self.token, "limit": 20},
            label=f"apify-dataset-{dataset_id}",
        )
        if not items_resp or not items_resp.is_success:
            return []
        return items_resp.json()

    async def fetch_instagram_profile(self, url: str) -> dict | None:
        username = urlparse(url).path.strip("/").split("/")[0] if "://" in url else url.lstrip("@")
        items = await self._run_actor("apify~instagram-profile-scraper", {"usernames": [username], "resultsLimit": 12})
        return items[0] if items else None

    async def get_instagram_profile(self, url: str) -> dict | None:
        profile = await self.fetch_instagram_profile(url)
        if not profile or profile.get("error"):
            return None
        return {
            "username": profile["username"],
            "followers": profile.get("followersCount", 0),
            "following": profile.get("followsCount", 0),
            "posts": profile.get("postsCount", 0),
            "bio": profile.get("biography", ""),
            "isBusinessAccount": profile.get("isBusinessAccount", False),
            "externalUrl": profile.get("externalUrl"),
            "latestPosts": [
                {
                    "type": p.get("type"),
                    "likes": p.get("likesCount", 0),
                    "comments": p.get("commentsCount", 0),
                    "caption": (p.get("caption") or "")[:500],
                    "timestamp": p.get("timestamp"),
                }
                for p in (profile.get("latestPosts") or [])[:12]
            ],
        }

    async def fetch_instagram_posts(self, url: str, limit: int = 20) -> list[dict]:
        username = urlparse(url).path.strip("/").split("/")[0] if "://" in url else url.lstrip("@")
        return await self._run_actor("apify~instagram-post-scraper", {
            "directUrls": [f"https://www.instagram.com/{username}/"],
            "resultsLimit": limit,
        })

    async def get_instagram_posts(self, url: str, limit: int = 20) -> dict:
        items = await self.fetch_instagram_posts(url, limit)
        posts = [
            {
                "id": p["id"],
                "type": p.get("type"),
                "url": p.get("url"),
                "caption": (p.get("caption") or "")[:500],
                "hashtags": p.get("hashtags", []),
                "likesCount": p.get("likesCount", 0),
                "commentsCount": p.get("commentsCount", 0),
                "timestamp": p.get("timestamp"),
            }
            for p in items
        ]
        n = len(posts) or 1
        return {
            "posts": posts,
            "totalPosts": len(posts),
            "avgLikes": round(sum(p["likesCount"] for p in posts) / n),
            "avgComments": round(sum(p["commentsCount"] for p in posts) / n),
        }

    async def fetch_instagram_reels(self, url: str, limit: int = 15) -> list[dict]:
        username = urlparse(url).path.strip("/").split("/")[0] if "://" in url else url.lstrip("@")
        return await self._run_actor("apify~instagram-reel-scraper", {
            "directUrls": [f"https://www.instagram.com/{username}/reels/"],
            "resultsLimit": limit,
        })

    async def get_instagram_reels(self, url: str, limit: int = 15) -> dict:
        items = await self.fetch_instagram_reels(url, limit)
        reels = [
            {
                "id": r["id"],
                "url": r.get("url"),
                "caption": (r.get("caption") or "")[:500],
                "hashtags": r.get("hashtags", []),
                "likesCount": r.get("likesCount", 0),
                "commentsCount": r.get("commentsCount", 0),
                "videoViewCount": r.get("videoViewCount", 0),
                "videoPlayCount": r.get("videoPlayCount", 0),
                "videoDuration": r.get("videoDuration", 0),
                "timestamp": r.get("timestamp"),
            }
            for r in items
        ]
        n = len(reels) or 1
        return {
            "reels": reels,
            "totalReels": len(reels),
            "avgViews": round(sum(r["videoViewCount"] for r in reels) / n),
            "avgPlays": round(sum(r["videoPlayCount"] for r in reels) / n),
        }

    async def fetch_facebook_page(self, page_url: str) -> dict | None:
        items = await self._run_actor("apify~facebook-pages-scraper", {"startUrls": [{"url": page_url}]})
        return items[0] if items else None

    async def get_facebook_page(self, page_url: str) -> dict | None:
        page = await self.fetch_facebook_page(page_url)
        if not page:
            return None
        return {
            "pageName": page.get("title") or page.get("name"),
            "pageUrl": page.get("pageUrl", page_url),
            "followers": page.get("followers", 0),
            "likes": page.get("likes", 0),
            "categories": page.get("categories", []),
            "email": page.get("email"),
            "phone": page.get("phone"),
            "website": page.get("website"),
            "address": page.get("address"),
            "intro": page.get("intro"),
            "rating": page.get("rating"),
        }