import json
from typing import Dict, List

from app.infra.internal.aigc_decode_server import AigcDecodeServer

from ._const import DecodeArticleConst


class AigcDecodeUtils(DecodeArticleConst):
    decode_server = AigcDecodeServer()

    async def submit_decode_batch(
        self, posts: List[Dict], *, config_id: int = None, skip_completed: bool = False
    ) -> Dict[str, Dict]:
        """分批提交解构任务，返回 {content_id: {status, errorMessage}}"""
        cfg_id = config_id or self.CONFIG_ID
        result = {}
        for i in range(0, len(posts), self.SUBMIT_BATCH):
            batch = posts[i : i + self.SUBMIT_BATCH]
            response = await self.decode_server.submit_decode(
                config_id=cfg_id, posts=batch, skip_completed=skip_completed
            )
            if response.get("code") == 0:
                for item in response.get("data", []):
                    result[item["channelContentId"]] = item
            else:
                # 整批失败，标记所有帖子为 FAILED
                for post in batch:
                    cid = post["channelContentId"]
                    result[cid] = {
                        "channelContentId": cid,
                        "status": "FAILED",
                        "errorMessage": f"batch submit failed: {response}",
                    }
        return result

    async def query_decode_results_batch(
        self, content_ids: List[str], *, config_id: int = None
    ) -> Dict[str, Dict]:
        """分批查询解构结果，返回 {content_id: {status, dataContent, html, errorMessage}}
        当 API 调用失败时，对应条目 status 为 API_ERROR，调用方应保持 INIT 等待重试。
        """
        cfg_id = config_id or self.CONFIG_ID
        result = {}
        for i in range(0, len(content_ids), self.SUBMIT_BATCH):
            batch = content_ids[i : i + self.SUBMIT_BATCH]
            response = await self.decode_server.query_decode_results(
                config_id=cfg_id, channel_content_ids=batch
            )
            if response.get("code") == 0:
                for item in response.get("data", []):
                    result[item["channelContentId"]] = item
            else:
                for cid in batch:
                    result[cid] = {
                        "channelContentId": cid,
                        "status": "API_ERROR",
                        "errorMessage": f"query API failed: {response}",
                    }
        return result

    @staticmethod
    def extract_decode_result(result: Dict) -> Dict:
        """从解构结果中解析出灵感点、目的点、关键点、选题
        兼容新旧两种数据格式：v1 有 final_normalization_rebuild 包裹层，v2 无
        """
        final_result = result.get("final_normalization_rebuild") or result

        inspiration_list = final_result.get("inspiration_final_result", {}).get(
            "最终灵感点列表", []
        )
        purpose_list = final_result.get("purpose_final_result", {}).get(
            "最终目的点列表", []
        )
        keypoint_list = final_result.get("keypoint_final", {}).get("最终关键点列表", [])

        topic_fusion = final_result.get("topic_fusion_result", {})
        topic_text = (
            topic_fusion.get("最终选题", {}).get("选题", "")
            if isinstance(topic_fusion.get("最终选题"), dict)
            else ""
        )

        def _join_points(items: list, key: str) -> str:
            parts = [str(p[key]) for p in items if isinstance(p, dict) and p.get(key)]
            return ",".join(parts)

        return {
            "inspiration": _join_points(inspiration_list, "灵感点"),
            "purpose": _join_points(purpose_list, "目的点"),
            "key_point": _join_points(keypoint_list, "关键点"),
            "topic": topic_text,
        }


class AdPlatformArticlesDecodeUtils(AigcDecodeUtils):
    @staticmethod
    def format_images(images: str) -> List[str]:
        if not images or not images.strip():
            return []
        try:
            image_list = json.loads(images)
        except (json.JSONDecodeError, TypeError):
            return []
        if not isinstance(image_list, list):
            return []
        return [
            i.get("image_url")
            for i in image_list
            if isinstance(i, dict) and i.get("image_url")
        ]

    def prepare_posts(self, articles: List[Dict]) -> List[Dict]:
        posts = []
        for article in articles:
            images = self.format_images(article.get("article_images") or "")
            posts.append(
                {
                    "channelContentId": article["wx_sn"],
                    "title": article.get("article_title", ""),
                    "bodyText": article.get("article_text", ""),
                    "images": images,
                    "video": None,
                    "contentModal": self.ContentModal.LONG_ARTICLE,
                    "channel": self.Channel.WECHAT,
                }
            )
        return posts


class InnerArticlesDecodeUtils(AigcDecodeUtils):
    def prepare_posts(
        self, articles: List[Dict], produce_info_map: Dict[str, List[Dict]]
    ) -> List[Dict]:
        posts = []
        for article in articles:
            source_id = str(article["source_id"])
            produce_info = produce_info_map.get(source_id, [])

            # 收集图片：封面(coverimgurl) + produce COVER + produce IMAGE
            images = []
            if article.get("coverimgurl"):
                images.append(article["coverimgurl"])
            for pi in produce_info:
                if pi["produce_module_type"] == self.ProduceModuleType.COVER:
                    images.append(pi["output"])
            for pi in produce_info:
                if pi["produce_module_type"] == self.ProduceModuleType.IMAGE:
                    images.append(pi["output"])

            posts.append(
                {
                    "title": article.get("title", ""),
                    "bodyText": article.get("article_text", ""),
                    "images": images,
                    "video": None,
                    "contentModal": self.ContentModal.LONG_ARTICLE,
                    "channel": self.Channel.WECHAT,
                    "channelContentId": source_id,
                }
            )
        return posts


__all__ = [
    "AigcDecodeUtils",
    "AdPlatformArticlesDecodeUtils",
    "InnerArticlesDecodeUtils",
]