"""
设置路由
"""
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from pydantic import BaseModel

from database import get_db
from models import User
from schemas import CookieSetting, SystemStatus
from auth import get_current_user
from fumamx_cli import update_cookie, COOKIE_FILE, check_cookie_valid

router = APIRouter(prefix="/settings", tags=["设置"])

# Token 文件路径
TOKEN_CONFIG_FILE = "/home/ubuntu/nanocode/fumamxCLI/src/config.py"


class TokenSetting(BaseModel):
    access_token: str
    individual_access_token: str


def read_tokens_from_config():
    """从 config.py 读取当前 token"""
    tokens = {
        "access_token": "",
        "individual_access_token": ""
    }
    try:
        with open(TOKEN_CONFIG_FILE, 'r') as f:
            content = f.read()
        
        # 解析 ACCESS_TOKEN
        import re
        access_match = re.search(r'ACCESS_TOKEN\s*=\s*["\']([^"\']+)["\']', content)
        if access_match:
            tokens["access_token"] = access_match.group(1)
        
        # 解析 INDIVIDUAL_ACCESS_TOKEN
        individual_match = re.search(r'INDIVIDUAL_ACCESS_TOKEN\s*=\s*["\']([^"\']+)["\']', content)
        if individual_match:
            tokens["individual_access_token"] = individual_match.group(1)
            
    except Exception as e:
        print(f"读取 token 失败: {e}")
    
    return tokens


def write_tokens_to_config(access_token: str, individual_access_token: str):
    """写入 token 到 config.py"""
    try:
        with open(TOKEN_CONFIG_FILE, 'r') as f:
            content = f.read()
        
        import re
        # 替换 ACCESS_TOKEN
        content = re.sub(
            r'ACCESS_TOKEN\s*=\s*["\'][^"\']*["\']',
            f'ACCESS_TOKEN = "{access_token}"',
            content
        )
        
        # 替换 INDIVIDUAL_ACCESS_TOKEN
        content = re.sub(
            r'INDIVIDUAL_ACCESS_TOKEN\s*=\s*["\'][^"\']*["\']',
            f'INDIVIDUAL_ACCESS_TOKEN = "{individual_access_token}"',
            content
        )
        
        with open(TOKEN_CONFIG_FILE, 'w') as f:
            f.write(content)
        
        return True
    except Exception as e:
        print(f"写入 token 失败: {e}")
        return False


def check_tokens_valid() -> bool:
    """检查 token 是否有效"""
    tokens = read_tokens_from_config()
    return bool(tokens["access_token"] and tokens["individual_access_token"])


@router.get("/status", response_model=SystemStatus)
def get_status(current_user: User = Depends(get_current_user)):
    """获取系统状态"""
    cookie_valid = check_cookie_valid()
    tokens_valid = check_tokens_valid()
    return {
        "logged_in": True,
        "user": current_user.username,
        "cookie_valid": cookie_valid,
        "tokens_valid": tokens_valid
    }


@router.post("/cookie")
def set_cookie(
    data: CookieSetting,
    current_user: User = Depends(get_current_user)
):
    """设置 cookie"""
    try:
        # 验证是否为有效的 JSON
        import json
        cookie_data = json.loads(data.cookie_content)
        
        # 保存到文件
        with open(COOKIE_FILE, 'w') as f:
            json.dump(cookie_data, f, indent=2)
        
        # 验证 cookie 有效性
        if check_cookie_valid():
            return {"message": "Cookie 设置成功并验证通过"}
        else:
            return {"message": "Cookie 已保存，但验证失败，请检查内容"}
            
    except json.JSONDecodeError:
        raise HTTPException(status_code=400, detail="无效的 JSON 格式")
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"保存失败: {str(e)}")


@router.get("/cookie")
def get_cookie(current_user: User = Depends(get_current_user)):
    """获取当前 cookie（脱敏）"""
    try:
        with open(COOKIE_FILE, 'r') as f:
            import json
            cookies = json.load(f)
        
        # 脱敏处理
        safe_cookies = []
        for c in cookies:
            safe_cookies.append({
                "name": c.get("name"),
                "domain": c.get("domain"),
                "value_preview": c.get("value", "")[:10] + "..." if len(c.get("value", "")) > 10 else c.get("value")
            })
        
        return {"cookies": safe_cookies}
    except Exception as e:
        return {"cookies": [], "error": str(e)}


@router.get("/tokens")
def get_tokens(current_user: User = Depends(get_current_user)):
    """获取当前 Token（脱敏显示）"""
    tokens = read_tokens_from_config()
    # 脱敏处理
    return {
        "access_token": tokens["access_token"][:8] + "..." if len(tokens["access_token"]) > 8 else tokens["access_token"],
        "individual_access_token": tokens["individual_access_token"][:8] + "..." if len(tokens["individual_access_token"]) > 8 else tokens["individual_access_token"],
        "has_tokens": bool(tokens["access_token"] and tokens["individual_access_token"])
    }


@router.post("/tokens")
def set_tokens(
    data: TokenSetting,
    current_user: User = Depends(get_current_user)
):
    """设置 Token"""
    if not data.access_token.strip() or not data.individual_access_token.strip():
        raise HTTPException(status_code=400, detail="Token 不能为空")
    
    if write_tokens_to_config(data.access_token.strip(), data.individual_access_token.strip()):
        return {"message": "Token 设置成功"}
    else:
        raise HTTPException(status_code=500, detail="Token 保存失败")