import asyncio
from datetime import datetime, timezone

from fastapi.logger import logger
from sqlalchemy import and_


from shared.constants import PAGE_SIZE
from modules.configuration.schemas import ConfigForm
from modules.configuration.models import Config
from modules.configuration.models import ConfigItem
from modules.configuration.repository import config_repo, configitem_repo
from config import FASTAPI_IMAGE_URL
from core import R
from utils.rich_text import get_file_url, save_file
from utils.request import like_contains
from core.security import get_user_id


# 配置表单验证

def get_config_page(request):
    # 页码
    page = int(request.query_params.get("pageNo", 1))
    # 每页数
    limit = int(request.query_params.get("pageSize", PAGE_SIZE))
    # 实例化查询对象
    query = config_repo.filter(Config.is_delete == 0)
    # 配置名称
    name = request.query_params.get('name')
    if name:
        query = query.filter(Config.name.like(like_contains(name), escape='\\'))
    # 排序
    query = query.order_by(Config.sort.asc())
    # 记录总数
    count = query.count()
    # 分页查询
    config_list = query.limit(limit).offset((page - 1) * limit).all()
    # 若当前页超出末页（数据被并发删除），自动回退到第一页
    if page > 1 and not config_list:
        page = 1
        count = query.count()
        config_list = query.limit(limit).offset(0).all()
    # 实例化结果
    result = []
    # 遍历数据源
    if len(config_list) > 0:
        for item in config_list:
            # 对象转字典
            data = item.to_dict()
            # 加入列表
            result.append(data)
    # 返回结果
    return R.ok(data=result, count=count)
# 根据ID获取配置详情

def get_config_detail(config_id):
    # 根据ID查询配置
    config = config_repo.get_by_id(config_id)
    # 查询结果判空
    if not config:
        return None
    # 对象转字典
    data = config.to_dict()
    # 返回结果
    return data
# 添加配置

def add_config(request, data: ConfigForm):
    # 唯一性校验
    if config_repo.filter(and_(Config.name == data.name, Config.is_delete == 0)).first():
        return R.failed("配置名称不能重复")
    # 表单数据赋值给对象
    config_repo.create(**data.model_dump(exclude={'id'}), create_user=get_user_id(request))
    # 返回结果
    return R.ok(msg="添加成功")


# 更新配置

def update_config(request, data: ConfigForm):
    # 记录ID判空
    if not data.id or data.id <= 0:
        return R.failed("记录ID不能为空")
    # 唯一性校验（排除自身）
    if config_repo.filter(and_(Config.name == data.name, Config.id != data.id, Config.is_delete == 0)).first():
        return R.failed("配置名称不能重复")

    # 根据ID查询记录
    config = config_repo.get_by_id(data.id)
    # 查询结果判空
    if not config:
        return R.failed("记录不存在")
    # 构造更新数据（排除 id）
    updData = data.model_dump(exclude={'id'})
    updData['update_user'] = get_user_id(request)
    updData['update_time'] = datetime.now(tz=timezone.utc)
    result = config_repo.update(data.id, updData)
    # 提交数据
    if not result:
        return R.failed("更新失败")
    # 返回结果
    return R.ok(msg="更新成功")
# 删除配置

def delete_config(config_id):
    return Config.batch_delete_r(config_id)


# 解析配置项选项字符串为字典
def _parse_options(options_str):
    """将 'k1=v1,k2=v2' 格式的选项字符串解析为字典"""
    if not options_str:
        return {}
    result = {}
    for part in options_str.split(','):
        parts = part.split('=', 1)
        if len(parts) == 2:
            result[parts[0]] = parts[1]
    return result


# 获取网站配置信息
def get_config_info(request):
    # 一次性查询所有配置组
    configList = config_repo.filter(Config.is_delete == 0).order_by(Config.sort.asc()).all()
    if not configList:
        return []

    # 一次性查询所有活跃配置项，按config_id分组
    config_ids = [c.id for c in configList]
    all_items = configitem_repo.filter(
        and_(ConfigItem.is_delete == 0, ConfigItem.status == 1, ConfigItem.config_id.in_(config_ids))
    ).order_by(ConfigItem.sort.asc()).all()

    items_map = {}
    for item in all_items:
        items_map.setdefault(item.config_id, []).append(item)

    config_list = []
    for val in configList:
        config = {
            'config_id': val.id,
            'config_name': val.name
        }

        data_list = []
        for v in items_map.get(val.id, []):
            data = {
                "id": v.id,
                "title": v.title,
                "code": v.code,
                "value": v.value,
                "type": v.type,
            }

            item_type = v.type
            if item_type == "checkbox":
                data['optionsList'] = _parse_options(v.options)
                data["value"] = v.value.split(',') if v.value else []
            elif item_type in ("radio", "select"):
                data['optionsList'] = _parse_options(v.options)
            elif item_type == "image":
                if v.value:
                    data["value"] = get_file_url(v.value)
            elif item_type == "images":
                if v.value:
                    data["value"] = [get_file_url(img) for img in v.value.split(',')]

            data_list.append(data)

        config['data_list'] = data_list
        config_list.append(config)

    return config_list


# 保存网站配置信息
async def save_config_info(request):
    # 获取请求参数
    req_data = await request.json()
    if not req_data or not isinstance(req_data, dict):
        return R.failed("请求参数异常")

    def _save():
        # 预加载所有活跃配置项，仅允许修改这些项
        valid_items = configitem_repo.filter(
            and_(ConfigItem.is_delete == 0, ConfigItem.status == 1)
        ).all()
        item_map = {item.code: item for item in valid_items}

        # 数据源处理
        for key, val in req_data.items():
            # 仅允许修改已存在的活跃配置项，忽略非法key
            config_item = item_map.get(key)
            if not config_item:
                continue

            # 图片数据
            item = []
            if isinstance(val, list):
                for v in val:
                    if isinstance(v, str) and (v.startswith("http://") or v.startswith("https://")):
                        url = save_file(v, "config")
                        item.append(url)
                    else:
                        item.append(v)
                val = ','.join(item)
            else:
                if isinstance(val, str) and (val.startswith("http://") or val.startswith("https://")):
                    val = save_file(val, "config")

            # 设置
            config_item.value = val

    # 同步DB操作与网络下载放入线程池，避免阻塞事件循环
    await asyncio.to_thread(_save)

    # 返回结果
    return R.ok()


from datetime import datetime, timezone

from fastapi.logger import logger
from sqlalchemy import and_

from shared.enums import CONFIG_DATA_TYPE_LIST
from shared.constants import PAGE_SIZE
from modules.configuration.schemas import ConfigItemForm, ConfigItemStatusForm
from modules.configuration.models import ConfigItem
from core import R
from core.security import get_user_id
from utils.request import like_contains


# 查询配置项分页数据

def get_config_item_page(request):
    # 页码
    page = int(request.query_params.get("pageNo", 1))
    # 每页数
    limit = int(request.query_params.get("pageSize", PAGE_SIZE))
    # 实例化查询对象
    query = configitem_repo.filter(ConfigItem.is_delete == 0)
    # 配置ID
    config_id = request.query_params.get('config_id', 0)
    query = query.filter(ConfigItem.config_id == config_id)
    # 配置项项名称模糊筛选
    title = request.query_params.get('title')
    if title:
        query = query.filter(ConfigItem.title.like(like_contains(title), escape='\\'))
    # 排序
    query = query.order_by(ConfigItem.sort.asc())
    # 记录总数
    count = query.count()
    # 分页查询
    config_list = query.limit(limit).offset((page - 1) * limit).all()
    # 若当前页超出末页（数据被并发删除），自动回退到第一页
    if page > 1 and not config_list:
        page = 1
        count = query.count()
        config_list = query.limit(limit).offset(0).all()
    # 实例化结果
    result = []
    # 遍历数据源
    if len(config_list) > 0:
        for item in config_list:
            # 对象转字典
            data = item.to_dict()
            # 配置项类型
            data['type_name'] = CONFIG_DATA_TYPE_LIST.get(item.type)
            # 加入列表
            result.append(data)
    # 返回结果
    return R.ok(data=result, count=count)
# 根据ID查询配置项详情

def get_config_item_detail(config_id):
    # 根据ID查询配置项
    config_data = configitem_repo.get_by_id(config_id)
    # 查询结果判空
    if not config_data:
        return None
    # 对象转字典
    data = config_data.to_dict()
    # 返回结果
    return data
# 添加配置项

def add_config_item(request, data: ConfigItemForm):
    # 表单数据赋值给对象
    configitem_repo.create(**data.model_dump(exclude={'id'}), create_user=get_user_id(request))
    # 返回结果
    return R.ok(msg="添加成功")


# 更新配置项

def update_config_item(request, data: ConfigItemForm):
    # 记录ID判空
    if not data.id or data.id <= 0:
        return R.failed("记录ID不能为空")

    # 根据ID查询记录
    config_data = configitem_repo.get_by_id(data.id)
    # 查询结果判空
    if not config_data:
        return R.failed("记录不存在")
    # 构造更新数据（排除 id）
    updData = data.model_dump(exclude={'id'})
    updData['update_user'] = get_user_id(request)
    updData['update_time'] = datetime.now(tz=timezone.utc)
    result = configitem_repo.update(data.id, updData)
    # 提交数据
    if not result:
        return R.failed("更新失败")
    # 返回结果
    return R.ok(msg="更新成功")
# 删除配置项

def delete_config_item(config_id):
    return ConfigItem.batch_delete_r(config_id)
# 设置状态

def update_config_item_status(request, data: ConfigItemStatusForm):
    # 根据ID查询记录
    config_data = configitem_repo.get_by_id(data.id)
    # 查询结果判空
    if not config_data:
        return R.failed("记录不存在")

    # 更新记录
    result = configitem_repo.update(data.id, {
        "status": data.status,
        "update_user": get_user_id(request),
        "update_time": datetime.now(tz=timezone.utc)
    })
    # 提交数据
    if not result:
        return R.failed("设置失败")
    # 返回结果
    return R.ok(msg="设置成功")