ForcePilot/backend/server/routers/channels/config_router.py

"""配置管理域 Router（CFG-02 / CFG-READ-01 / CFG-UPDATE-01 / CFG-ROLL-01 / CFG-HIST-01 / CFG-EXPORT / CFG-IMPORT / CFG-BATCH-UPDATE）。

本 router 实现渠道配置管理域的全部 HTTP 端点，覆盖 schema 查询、配置查询、
更新、回滚、历史、导出、导入与批量更新共 8 个操作。所有端点统一采用模板 A
（控制面端口路由），通过 ``get_channel_use_cases`` 装配 ``ChannelUseCases``，
经 ``config_management`` 端口调用类型化方法，由 ``ChannelControlService``
内部走控制面管道（auth → permission → rate_limit → dispatch → audit）。

鉴权策略：全部端点使用 ``get_admin_user`` 依赖，要求管理员或超级管理员角色。
角色校验由依赖函数完成，router 内不做角色判断（规范 §4）。

模板选型：模板 A（控制面端口路由）——端点函数体仅做
``operator = build_operator`` → ``use_cases.config_management.<method>``
→ ``raiseOnControlFailure`` →
``return {"success": True, "data": serialize_control_data(result.data)}``，
不包含 try/except 吞异常、直接 Redis 访问、ORM 模型返回或
``_executeControl`` 直接调用。模板选型决策依据详见设计方案 §2.5。

路径设计：静态路径 ``/config/schema`` / ``/config/export`` / ``/config/import``
/ ``/config/batch`` 先于动态路径 ``/config/{key}`` 声明，避免被动态路径捕获
（规范 §6.5）。子 router 不自行设置 prefix，根前缀 ``/channels`` 由
``channels_router`` 聚合 router 统一追加。完整 HTTP 路径为
``/channels/config/*``（不含 ``{channel_type}`` 段，配置管理为跨渠道
全局能力）。

tags 命名：``config_router = APIRouter(tags=["channels-config"])``，与现有
``channels-login``/``channels-account`` 等子 router 命名规范一致。

端点清单（对应《配置管理域设计方案》§2.1）：
    - GET  /config/schema                     CFG-02     get_config_schema
    - GET  /config/export                     CFG-EXPORT  export_config
    - POST /config/import                     CFG-IMPORT  import_config
    - PUT  /config/batch                      CFG-BATCH-UPDATE batch_update_config
    - GET  /config/{key}                      CFG-READ-01 get_config
    - PUT  /config/{key}                      CFG-UPDATE-01 update_config
    - POST /config/{key}/rollback             CFG-ROLL-01 rollback_config
    - GET  /config/{key}/history              CFG-HIST-01 get_config_history
"""

from __future__ import annotations

from typing import Any

from fastapi import APIRouter, Depends, Query, Request
from pydantic import BaseModel, ConfigDict, Field
from yuxi.channels.contract.dtos.config import (
    BatchUpdateConfigCmd,
    ConfigExportCmd,
    ConfigScope,
    ConfigUpdateItem,
    ImportConfigCmd,
    RollbackConfigCmd,
    UpdateConfigCmd,
)
from yuxi.storage.postgres.models_business import User

from server.routers.channels import (
    build_operator,
    get_channel_use_cases,
    raiseOnControlFailure,
    serialize_control_data,
)
from server.utils.auth_middleware import get_admin_user, get_superadmin_user

config_router = APIRouter(tags=["channels-config"])


class UpdateConfigRequest(BaseModel):
    """更新配置请求体（CFG-UPDATE-01）。

    ``value`` 为 ``Any`` 类型，类型校验由 ``ConfigManager._validateValueType``
    基于 ``CONFIG_SCHEMA`` 声明的 ``type`` 字段执行（``str`` / ``int`` /
    ``bool`` / ``json``）。
    """

    model_config = ConfigDict(frozen=True)

    value: Any = Field(..., description="配置值（类型需与 schema 声明一致）")
    scope: ConfigScope = Field(default=ConfigScope.GLOBAL, description="配置作用域")
    target: str | None = Field(default=None, description="作用域目标")
    expected_version: int | None = Field(default=None, ge=1, description="乐观锁版本号")


class RollbackConfigRequest(BaseModel):
    """回滚配置请求体（CFG-ROLL-01）。"""

    model_config = ConfigDict(frozen=True)

    target_version: int = Field(..., ge=1, description="回滚目标版本号")
    scope: ConfigScope = Field(default=ConfigScope.GLOBAL, description="配置作用域")
    target: str | None = Field(default=None, description="作用域目标")


class ImportConfigRequest(BaseModel):
    """导入配置请求体（CFG-IMPORT）。

    ``config_data`` 的 key 必须在 ``CONFIG_SCHEMA`` 中声明，否则 dispatch
    handler 记入 failed。``dry_run=true`` 时仅校验不写入。
    """

    model_config = ConfigDict(frozen=True)

    config_data: dict[str, Any] = Field(..., description="待导入的配置字典")
    scope: ConfigScope = Field(default=ConfigScope.GLOBAL, description="配置作用域")
    target: str | None = Field(default=None, description="作用域目标")
    overwrite: bool = Field(default=False, description="是否覆盖已存在 key")
    dry_run: bool = Field(default=False, description="是否仅预校验不写入")


class ConfigUpdateItemRequest(BaseModel):
    """单条配置更新项请求体（CFG-BATCH-UPDATE 子项）。"""

    model_config = ConfigDict(frozen=True)

    key: str = Field(..., description="配置键")
    value: Any = Field(..., description="配置值")
    expected_version: int | None = Field(default=None, ge=1, description="乐观锁版本号")


class BatchUpdateConfigRequest(BaseModel):
    """批量更新配置请求体（CFG-BATCH-UPDATE）。

    ``updates`` 长度限制 1-50（dispatch handler 校验）。``stop_on_error=false``
    时逐条独立事务（模式 D 部分成功）；``stop_on_error=true`` 时首条失败即终止。
    """

    model_config = ConfigDict(frozen=True)

    updates: list[ConfigUpdateItemRequest] = Field(..., min_length=1, max_length=50, description="配置更新项列表")
    scope: ConfigScope = Field(default=ConfigScope.GLOBAL, description="配置作用域")
    target: str | None = Field(default=None, description="作用域目标")
    stop_on_error: bool = Field(default=False, description="首条失败即终止")


@config_router.get("/config/schema", response_model=dict)
async def get_config_schema(
    request: Request,
    scope: ConfigScope = Query(default=ConfigScope.GLOBAL, description="配置作用域"),
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """查询配置 schema 元数据（CFG-02）。对应控制面操作 config/schema。

    返回 ``CONFIG_SCHEMA`` 的字段元数据（键、类型、是否必填、默认值、是否可
    热更新、约束），供管理后台动态表单渲染。所有作用域共享同一 schema，
    ``scope`` 参数仅为审计上下文保留。
    """
    operator = build_operator(current_user, request)
    result = await use_cases.config_management.getConfigSchema(
        operator=operator,
        scope=scope,
    )
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.get("/config/export", response_model=dict)
async def export_config(
    request: Request,
    scope: ConfigScope = Query(default=ConfigScope.GLOBAL, description="配置作用域"),
    target: str | None = Query(default=None, description="作用域目标（channel/account 时必填）"),
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_superadmin_user),
) -> dict[str, Any]:
    """导出配置（CFG-EXPORT）。对应控制面操作 config/export。

    遍历指定 ``scope`` / ``target`` 的所有配置 key 序列化返回
    ``ConfigExportResult``，含 scope / config_data / version / exported_at /
    target。需超级管理员权限。
    """
    operator = build_operator(current_user, request)
    cmd = ConfigExportCmd(
        operator=operator,
        scope=scope,
        target=target,
    )
    result = await use_cases.config_management.exportConfig(cmd)
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.post("/config/import", response_model=dict)
async def import_config(
    payload: ImportConfigRequest,
    request: Request,
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_superadmin_user),
) -> dict[str, Any]:
    """导入配置（CFG-IMPORT）。对应控制面操作 config/import。

    逐条校验 schema → ``dry_run`` 时仅统计不写入 → ``overwrite=false`` 时
    已存在 key 记入 skipped → 逐条写入。返回 ``ImportConfigResult``，含
    imported_count / skipped_count / failed_count / failed_keys / imported_at。
    需超级管理员权限。
    """
    operator = build_operator(current_user, request)
    cmd = ImportConfigCmd(
        operator=operator,
        config_data=payload.config_data,
        scope=payload.scope,
        target=payload.target,
        overwrite=payload.overwrite,
        dry_run=payload.dry_run,
    )
    result = await use_cases.config_management.importConfig(cmd)
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.put("/config/batch", response_model=dict)
async def batch_update_config(
    payload: BatchUpdateConfigRequest,
    request: Request,
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """批量更新配置（CFG-BATCH-UPDATE）。对应控制面操作 config/batch_update。

    ``stop_on_error=false`` 时逐条独立事务（模式 D 部分成功）；
    ``stop_on_error=true`` 时首条失败即终止。每条复用 ``config/update`` 逻辑
    （版本校验、hot-reload 检查）。返回 ``BatchUpdateConfigResult``，含
    total / succeeded（key + new_version） / failed 列表。
    """
    operator = build_operator(current_user, request)
    cmd = BatchUpdateConfigCmd(
        operator=operator,
        updates=tuple(
            ConfigUpdateItem(
                key=item.key,
                value=item.value,
                expected_version=item.expected_version,
            )
            for item in payload.updates
        ),
        scope=payload.scope,
        target=payload.target,
        stop_on_error=payload.stop_on_error,
    )
    result = await use_cases.config_management.batchUpdateConfig(cmd)
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.get("/config/{key}", response_model=dict)
async def get_config(
    key: str,
    request: Request,
    scope: ConfigScope = Query(default=ConfigScope.GLOBAL, description="配置作用域"),
    target: str | None = Query(default=None, description="作用域目标（channel/account 时必填）"),
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """查询配置值（CFG-READ-01）。对应控制面操作 config/get。"""
    operator = build_operator(current_user, request)
    result = await use_cases.config_management.getConfig(
        key=key,
        operator=operator,
        scope=scope,
        target=target,
    )
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.put("/config/{key}", response_model=dict)
async def update_config(
    key: str,
    payload: UpdateConfigRequest,
    request: Request,
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """更新配置值（CFG-UPDATE-01）。对应控制面操作 config/update。

    不可热更新的配置项抛 ``ConfigRestartRequiredError``；值类型校验失败抛
    ``ConfigValidationError``；版本冲突抛 ``ConfigVersionConflictError``。
    """
    operator = build_operator(current_user, request)
    cmd = UpdateConfigCmd(
        key=key,
        value=payload.value,
        operator=operator,
        scope=payload.scope,
        target=payload.target,
        expected_version=payload.expected_version,
    )
    result = await use_cases.config_management.updateConfig(cmd)
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.post("/config/{key}/rollback", response_model=dict)
async def rollback_config(
    key: str,
    payload: RollbackConfigRequest,
    request: Request,
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """回滚配置到指定版本（CFG-ROLL-01）。对应控制面操作 config/rollback。

    目标版本不存在抛 ``NotFoundError``；版本冲突抛
    ``ConfigVersionConflictError``；回滚失败抛 ``ConfigRollbackError``。
    """
    operator = build_operator(current_user, request)
    cmd = RollbackConfigCmd(
        key=key,
        target_version=payload.target_version,
        operator=operator,
        scope=payload.scope,
        target=payload.target,
    )
    result = await use_cases.config_management.rollbackConfig(cmd)
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}


@config_router.get("/config/{key}/history", response_model=dict)
async def get_config_history(
    key: str,
    request: Request,
    scope: ConfigScope = Query(default=ConfigScope.GLOBAL, description="配置作用域"),
    target: str | None = Query(default=None, description="作用域目标"),
    use_cases=Depends(get_channel_use_cases),
    current_user: User = Depends(get_admin_user),
) -> dict[str, Any]:
    """查询配置版本历史（CFG-HIST-01）。对应控制面操作 config/history。"""
    operator = build_operator(current_user, request)
    result = await use_cases.config_management.getConfigHistory(
        key=key,
        operator=operator,
        scope=scope,
        target=target,
    )
    raiseOnControlFailure(result)
    return {"success": True, "data": serialize_control_data(result.data)}