"""计提公式模板管理接口（管理员）。"""

from typing import Annotated

from fastapi import APIRouter, Path

from app.api.deps import AdminUser, DbSession, RequestMetaDep
from app.core.response import ApiResponse, ok
from app.schemas.calc_template import (
    CalcTemplateCreateIn,
    CalcTemplateOut,
    CalcTemplateUpdateIn,
    FormulaOptionOut,
)
from app.services import calc_template_service

router = APIRouter(prefix="/calc-templates", tags=["系统管理 · 公式模板"])


@router.get("", response_model=ApiResponse[list[CalcTemplateOut]], summary="模板列表")
def list_templates(session: DbSession, _: AdminUser) -> ApiResponse[list[CalcTemplateOut]]:
    """取全部模板（含停用与岗位引用计数）。"""
    return ok(calc_template_service.list_templates(session).records)


@router.get("/meta/formulas", response_model=ApiResponse[list[FormulaOptionOut]], summary="公式骨架下拉")
def list_formula_options(_: AdminUser) -> ApiResponse[list[FormulaOptionOut]]:
    """取受控公式骨架集合（新增模板时选择）。"""
    return ok([FormulaOptionOut.model_validate(row) for row in calc_template_service.list_formula_options()])


@router.post("", response_model=ApiResponse[CalcTemplateOut], summary="新增模板")
def create_template(
    session: DbSession,
    current_user: AdminUser,
    payload: CalcTemplateCreateIn,
    meta: RequestMetaDep,
) -> ApiResponse[CalcTemplateOut]:
    """新增公式模板。编码唯一、骨架受控、参数绑定按骨架角色校验。"""
    return ok(
        calc_template_service.create_template(session, payload, operator=current_user, meta=meta),
        message="模板已创建",
    )


@router.put("/{template_id}", response_model=ApiResponse[CalcTemplateOut], summary="编辑模板")
def update_template(
    session: DbSession,
    current_user: AdminUser,
    template_id: Annotated[int, Path(ge=1)],
    payload: CalcTemplateUpdateIn,
    meta: RequestMetaDep,
) -> ApiResponse[CalcTemplateOut]:
    """编辑模板名称/说明/排序；自定义模板可调整参数绑定。"""
    return ok(
        calc_template_service.update_template(session, template_id, payload, operator=current_user, meta=meta),
        message="已保存",
    )


@router.delete("/{template_id}", response_model=ApiResponse[None], summary="删除模板")
def delete_template(
    session: DbSession,
    current_user: AdminUser,
    template_id: Annotated[int, Path(ge=1)],
    meta: RequestMetaDep,
) -> ApiResponse[None]:
    """删除模板。系统模板禁删；被岗位引用禁删。"""
    calc_template_service.delete_template(session, template_id, operator=current_user, meta=meta)
    return ok(message="模板已删除")