"""
Phase 2.2.1: 能力初步聚类（workflow 形式）

直接读取 case_detailed.json + source.json，调用 LLM 提取原子能力，
输出到 capabilities_temp.json
"""

import asyncio
import json
from pathlib import Path
from typing import Any, Dict

from examples.process_pipeline.script.llm_helper import call_llm_with_retry
from examples.process_pipeline.script.validate_schema import validate_capabilities_temp


def load_prompt_template(prompt_name: str) -> str:
    base_dir = Path(__file__).parent.parent
    prompt_path = base_dir / "prompts" / f"{prompt_name}.prompt"
    with open(prompt_path, "r", encoding="utf-8") as f:
        content = f.read()
    if content.startswith("---"):
        parts = content.split("---", 2)
        if len(parts) >= 3:
            content = parts[2]
    content = content.replace("$system$", "").replace("$user$", "")
    return content.strip()


async def extract_capabilities_workflow(
    detailed_file: Path,
    source_file: Path,
    output_file: Path,
    requirement: str,
    llm_call,
    model: str = "anthropic/claude-sonnet-4-6",
) -> Dict[str, Any]:
    """
    读取 case_detailed.json + source.json，调用 LLM 提取原子能力
    """
    detailed_data = {}
    source_data = {}

    if detailed_file.exists():
        with open(detailed_file, "r", encoding="utf-8") as f:
            detailed_data = json.load(f)

    if source_file.exists():
        with open(source_file, "r", encoding="utf-8") as f:
            source_data = json.load(f)

    # 构造输入数据摘要
    cases_summary = []
    for case in detailed_data.get("cases", []):
        case_id = case.get("case_id", f"{case.get('platform', '')}_{case.get('channel_content_id', '')}")
        workflow = case.get("workflow")
        steps_text = []
        if workflow and "工序步骤" in workflow:
            steps = workflow["工序步骤"]
            steps_text = [s.get("步骤描述", "") for s in steps]

        # 从 source.json 获取原始帖子信息（用于辅助理解）
        body_text = ""
        for src in source_data.get("sources", []):
            src_id = f"{src.get('platform', '')}_{src.get('channel_content_id', '')}"
            if src_id == case_id:
                body_text = src.get("post", {}).get("body_text", "")[:500]
                break

        cases_summary.append({
            "case_id": case_id,
            "title": case.get("title", ""),
            "workflow_steps": steps_text,
            "body_preview": body_text,
        })

    cases_json = json.dumps(cases_summary, ensure_ascii=False, indent=2)
    print(f"Loaded {len(cases_summary)} cases for capability extraction", flush=True)

    # 加载 prompt
    try:
        prompt_template = load_prompt_template("extract_capabilities")
        prompt = prompt_template + f"\n\n需求：{requirement}\n\n案例数据：\n```json\n{cases_json}\n```"
    except Exception:
        prompt = f"""你是一个 AI 创作工作流分析师。请从以下案例中跨案例统一提取可复用的核心能力。

需求：{requirement}

案例数据：
{cases_json}

输出 JSON 格式：
{{"abilities": [{{"ability_id": "AB-01", "ability_name": "能力名称（4-10字）", "ability_description": "一句话描述该能力的核心动作和目的", "关联案例": ["bili_BV1xxx", "xhs_694e17e9000000001e006669"]}}]}}"""

    messages = [{"role": "user", "content": prompt}]

    capabilities_data, total_cost = await call_llm_with_retry(
        llm_call=llm_call,
        messages=messages,
        model=model,
        temperature=0.1,
        max_tokens=4000,
        max_retries=3,
        validate_fn=validate_capabilities_temp,
        task_name="P2.2.1_ExtractCapabilities",
    )

    if capabilities_data is None:
        capabilities_data = {"abilities": []}

    output_file.parent.mkdir(parents=True, exist_ok=True)
    with open(output_file, "w", encoding="utf-8") as f:
        json.dump(capabilities_data, f, ensure_ascii=False, indent=2)

    return {
        "capabilities": len(capabilities_data.get("abilities", [])),
        "total_cost": total_cost,
    }