#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
从 tool_research 输出导入需求和 case 到数据库
- 需求存入 requirement_table
- case 存入 knowledge 表
"""
import json
import os
import sys
import time
import asyncio
from pathlib import Path
from typing import List, Dict, Any

# 设置 Windows 控制台编码
if sys.platform == 'win32':
    import codecs
    sys.stdout = codecs.getwriter('utf-8')(sys.stdout.buffer, 'strict')
    sys.stderr = codecs.getwriter('utf-8')(sys.stderr.buffer, 'strict')

# 添加父目录到路径以导入模块
sys.path.insert(0, str(Path(__file__).parent.parent.parent))

# 加载环境变量（从项目根目录）
from dotenv import load_dotenv
project_root = Path(__file__).parent.parent.parent
env_path = project_root / '.env'
load_dotenv(env_path)
print(f"加载环境变量: {env_path}")

from knowhub.knowhub_db.pg_store import PostgreSQLStore
from knowhub.knowhub_db.pg_requirement_store import PostgreSQLRequirementStore
from knowhub.embeddings import get_embedding


async def get_embedding_with_retry(text: str, max_retries: int = 3) -> List[float]:
    """带重试的 embedding 生成"""
    for attempt in range(max_retries):
        try:
            return await get_embedding(text)
        except Exception as e:
            if attempt < max_retries - 1:
                wait_time = (attempt + 1) * 2  # 2, 4, 6 秒
                print(f"  ⚠ Embedding 生成失败，{wait_time}秒后重试... ({attempt + 1}/{max_retries})")
                await asyncio.sleep(wait_time)
            else:
                raise e


def load_json_file(file_path: str) -> Dict:
    """加载 JSON 文件"""
    with open(file_path, 'r', encoding='utf-8') as f:
        return json.load(f)


async def import_requirements(
    req_store: PostgreSQLRequirementStore,
    tool_name: str,
    match_result_path: str,
    case_id_to_knowledge_id: Dict[str, str]
):
    """导入需求到 requirement_table

    Args:
        case_id_to_knowledge_id: case_id 到 knowledge_id 的映射
    """
    print(f"\n=== 导入 {tool_name} 的需求 ===")

    # 加载 match_nodes_result.json
    data = load_json_file(match_result_path)
    merged_demands = data.get('merged_demands', [])

    print(f"找到 {len(merged_demands)} 个合并后的需求")

    imported_count = 0
    for demand in merged_demands:
        demand_name = demand.get('demand_name', '')
        description = demand.get('description', '')
        source_case_ids = demand.get('source_case_ids', [])
        mount_decision = demand.get('mount_decision', {})

        print(f"\n[{imported_count + 1}/{len(merged_demands)}] 处理需求: {demand_name[:50]}...")

        # 构建需求 ID
        req_id = f"req_{tool_name}_{demand_name[:20].replace(' ', '_')}"
        print(f"  - 需求 ID: {req_id}")

        # 生成 embedding (异步调用，带重试)
        print(f"  - 生成 embedding...")
        embedding_text = f"{demand_name} {description}"
        embedding = await get_embedding_with_retry(embedding_text)
        print(f"  - Embedding 维度: {len(embedding)}")

        # 提取挂载的节点信息
        mounted_nodes = mount_decision.get('mounted_nodes', [])
        source_items = [
            {
                'entity_id': node['entity_id'],
                'name': node['name'],
                'source_type': node['source_type']
            }
            for node in mounted_nodes
        ]

        # 将 case_id 转换为 knowledge_id
        case_knowledge_ids = [
            case_id_to_knowledge_id.get(str(case_id), str(case_id))
            for case_id in source_case_ids
        ]
        print(f"  - 关联 {len(case_knowledge_ids)} 个 case")

        # 构建需求记录
        requirement = {
            'id': req_id,
            'task': demand_name,
            'type': '制作',
            'source_type': 'itemset',
            'source_itemset_id': f"{tool_name}_demands",
            'source_items': source_items,
            'tools': [{'id': f'tools/image_gen/{tool_name}', 'name': tool_name}],
            'knowledge': [],
            'case_knowledge': case_knowledge_ids,  # 使用 knowledge_id
            'process_knowledge': [],
            'trace': {},
            'body': description,
            'embedding': embedding
        }

        try:
            print(f"  - 插入数据库...")
            req_store.insert_or_update(requirement)
            imported_count += 1
            print(f"  ✓ 成功")
        except Exception as e:
            print(f"  ✗ 失败: {e}")

    print(f"成功导入 {imported_count}/{len(merged_demands)} 个需求\n")
    return imported_count


async def import_cases(
    knowledge_store: PostgreSQLStore,
    tool_name: str,
    cases_json_path: str
) -> Dict[str, str]:
    """导入 case 到 knowledge 表

    Returns:
        case_id 到 knowledge_id 的映射字典
    """
    print(f"\n=== 导入 {tool_name} 的 cases ===")

    # 加载 cases.json
    data = load_json_file(cases_json_path)
    cases = data.get('cases', [])

    print(f"找到 {len(cases)} 个 cases")

    imported_count = 0
    case_id_mapping = {}  # case_id -> knowledge_id

    for i, case in enumerate(cases):
        case_id = case.get('case_id', '')
        title = case.get('title', '')
        source = case.get('source', '')
        source_link = case.get('source_link', '')
        output_description = case.get('output_description', '')
        key_findings = case.get('key_findings', '')
        images = case.get('images', [])

        print(f"\n[{i + 1}/{len(cases)}] 处理 case: {title[:50]}...")
        print(f"  - Case ID: {case_id}")

        # 构建知识内容
        content = f"""# {title}

## 来源
{source}
链接: {source_link}

## 输出效果
{output_description}

## 关键发现
{key_findings}
"""

        # 生成 embedding (异步调用，带重试)
        print(f"  - 生成 embedding...")
        embedding_text = f"{title} {output_description} {key_findings}"
        embedding = await get_embedding_with_retry(embedding_text)
        print(f"  - Embedding 维度: {len(embedding)}")

        # 生成知识 ID
        timestamp = int(time.time())
        knowledge_id = f"knowledge-case-{tool_name}-{case_id}"
        print(f"  - Knowledge ID: {knowledge_id}")

        # 构建知识记录
        knowledge = {
            'id': knowledge_id,
            'embedding': embedding,
            'message_id': '',
            'task': title,  # 使用帖子标题作为 task
            'content': content,
            'types': ['case', 'tool_usage'],
            'tags': {
                'tool': tool_name,
                'case_id': str(case_id),
                'source': source,
                'has_images': len(images) > 0
            },
            'tag_keys': ['tool', 'case_id', 'source', 'has_images'],
            'scopes': ['org:cybertogether'],
            'owner': 'tool_research_agent',
            'resource_ids': [f'tools/image_gen/{tool_name}'],
            'source': {
                'agent_id': 'tool_research_agent',
                'category': 'case',
                'timestamp': timestamp,
                'url': source_link
            },
            'eval': {'score': 5, 'helpful': 1, 'confidence': 0.9},
            'created_at': timestamp,
            'updated_at': timestamp,
            'status': 'approved',
            'relationships': []
        }

        try:
            print(f"  - 插入数据库...")
            knowledge_store.insert(knowledge)
            imported_count += 1
            case_id_mapping[str(case_id)] = knowledge_id  # 记录映射关系
            print(f"  ✓ 成功")
        except Exception as e:
            print(f"  ✗ 失败: {e}")

    print(f"成功导入 {imported_count}/{len(cases)} 个 cases\n")
    return case_id_mapping


async def main():
    """主函数"""
    print("开始导入 tool_research 数据到数据库...")

    # 初始化数据库连接
    knowledge_store = PostgreSQLStore()
    req_store = PostgreSQLRequirementStore()

    # 定义数据路径
    base_path = Path(__file__).parent.parent.parent / 'examples' / 'tool_research' / 'outputs'

    tools_data = [
        {
            'name': 'midjourney',
            'match_result': base_path / 'nodes_output' / 'midjourney' / 'match_nodes_result.json',
            'cases': base_path / 'midjourney_0' / '02_cases.json'
        },
        {
            'name': 'seedream',
            'match_result': base_path / 'nodes_output' / 'seedream' / 'match_nodes_result.json',
            'cases': base_path / 'seedream_1' / '02_cases.json'
        }
    ]

    total_requirements = 0
    total_cases = 0

    for tool_data in tools_data:
        tool_name = tool_data['name']
        case_id_mapping = {}

        # 先导入 cases，获取 case_id 到 knowledge_id 的映射
        if tool_data['cases'].exists():
            case_id_mapping = await import_cases(
                knowledge_store,
                tool_name,
                str(tool_data['cases'])
            )
            total_cases += len(case_id_mapping)
        else:
            print(f"⚠ 文件不存在: {tool_data['cases']}")

        # 再导入需求，使用 case_id_mapping
        if tool_data['match_result'].exists():
            count = await import_requirements(
                req_store,
                tool_name,
                str(tool_data['match_result']),
                case_id_mapping
            )
            total_requirements += count
        else:
            print(f"⚠ 文件不存在: {tool_data['match_result']}")

    print("\n" + "="*50)
    print(f"导入完成!")
    print(f"  - 需求: {total_requirements} 条")
    print(f"  - Cases: {total_cases} 条")
    print("="*50)


if __name__ == '__main__':
    asyncio.run(main())