from apiflask import APIBlueprint
from flask_jwt_extended import jwt_required
from iti.applications.common.utils.schema import condition_schema
from iti_system.models import (
    SysDictType,
    SysDictTypeSchema,
    SysDictData,
    SysDictDataSchema,
)
from .schemas.dict import (
    SysDictTypeQuery,
    SysDictTypeCreateRequest,
    SysDictTypeUpdateRequest,
    SysDictDataQuery,
    SysDictDataCreateRequest,
    SysDictDataUpdateRequest,
    SysDictDataBatchDeleteRequest,
)
from iti.applications.common.utils import page_schema, page, success, pagination_fields
from iti.applications.common import ModelFilter
from iti.applications.extensions import db
from iti.applications.common.exceptions.biz_exp import BizException
from sqlalchemy import select, delete
from iti_system.permission import permission

bp = APIBlueprint("sys_dict", __name__, url_prefix="/dict", tag="系统.字典管理")


@bp.get("/type/page")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.input(SysDictTypeQuery.Schema, location="query")
@bp.output(
    page_schema(condition_schema(SysDictTypeSchema, {"withDataList": ["data_list"]}))
)
def page_sys_dict_type(query_data: SysDictTypeQuery):
    """
    分页查询字典类型
    """
    query = select(SysDictType).order_by(SysDictType.sort.asc())
    if query_data.keyword:
        kw = ModelFilter.escape_like(query_data.keyword)
        query = query.filter(
            SysDictType.type_name.like(f"%{kw}%")
            | SysDictType.type_code.like(f"%{kw}%")
        )
    else:
        if query_data.type_name:
            query = query.filter(
                SysDictType.type_name.like(
                    f"%{ModelFilter.escape_like(query_data.type_name)}%"
                )
            )
        if query_data.type_code:
            query = query.filter(
                SysDictType.type_code.like(
                    f"%{ModelFilter.escape_like(query_data.type_code)}%"
                )
            )
        if query_data.status:
            query = query.filter(SysDictType.status == query_data.status)
        if query_data.createdAt and len(query_data.createdAt) >= 2:
            query = query.filter(
                SysDictType.created_at.between(
                    query_data.createdAt[0], query_data.createdAt[1]
                )
            )
        if query_data.updatedAt and len(query_data.updatedAt) >= 2:
            query = query.filter(
                SysDictType.updated_at.between(
                    query_data.updatedAt[0], query_data.updatedAt[1]
                )
            )

    pagination = db.paginate(query, page=query_data.page, per_page=query_data.size)
    return page(pagination)


@bp.get("/type")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.input(SysDictTypeQuery.Schema(exclude=pagination_fields), location="query")
@bp.output(condition_schema(SysDictTypeSchema, {"withDataList": ["data_list"]}))
def get_sys_dict_type(query_data: SysDictTypeQuery):
    """
    查询字典类型
    """
    query = select(SysDictType).order_by(SysDictType.sort.asc()).limit(1)
    if query_data.type_code:
        query = query.filter(SysDictType.type_code == query_data.type_code)
    if query_data.status:
        query = query.filter(SysDictType.status == query_data.status)
    if query_data.createdAt and len(query_data.createdAt) >= 2:
        query = query.filter(
            SysDictType.created_at.between(
                query_data.createdAt[0], query_data.createdAt[1]
            )
        )
    if query_data.updatedAt and len(query_data.updatedAt) >= 2:
        query = query.filter(
            SysDictType.updated_at.between(
                query_data.updatedAt[0], query_data.updatedAt[1]
            )
        )

    return success(db.session.execute(query).one_or_none())


@bp.post("/type")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:create")
@bp.input(SysDictTypeCreateRequest, location="json")
def create_sys_dict_type(json_data: dict):
    """
    创建字典类型
    """
    sys_dict_type = SysDictType(**json_data)
    db.session.add(sys_dict_type)
    db.session.commit()
    return success()


@bp.put("/type/<string:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:edit")
@bp.input(SysDictTypeUpdateRequest(partial=True), location="json")
def update_sys_dict_type(id: str, json_data: dict):
    """
    更新字典类型
    """
    sys_dict_type = db.session.scalar(select(SysDictType).filter_by(id=id))
    if not sys_dict_type:
        raise BizException(message="字典类型不存在")
    for key, value in json_data.items():
        if value is None:
            continue
        setattr(sys_dict_type, key, value)
    db.session.commit()
    return success()


@bp.delete("/type/<string:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:delete")
def delete_sys_dict_type(id: str):
    """
    删除字典类型
    """

    sys_dict_type = db.session.scalar(select(SysDictType).filter_by(id=id))
    if not sys_dict_type:
        raise BizException(message="字典类型不存在")
    try:
        # 要先删除字典数据（级联）
        db.session.execute(
            delete(SysDictData).filter_by(type_code=sys_dict_type.type_code)
        )
        db.session.delete(sys_dict_type)
        db.session.commit()
    except Exception as e:
        db.session.rollback()
        raise BizException(message="删除字典类型失败", data=str(e))
    return success()


########################## 字典数据管理 #######################
@bp.get("/data/page")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.input(SysDictDataQuery.Schema, location="query")
@bp.output(page_schema(SysDictDataSchema(exclude=["type"])))
def page_sys_dict_data(query_data: SysDictDataQuery):
    """
    分页查询字典数据
    """
    return page(get_list_or_page(query_data))


@bp.get("/data/list")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.input(SysDictDataQuery.Schema(exclude=pagination_fields), location="query")
@bp.output(SysDictDataSchema(exclude=["type"], many=True))
def list_sys_dict_data(query_data: SysDictDataQuery):
    """
    查询字典数据列表
    """
    return success(get_list_or_page(query_data))


def get_list_or_page(query_data: SysDictDataQuery):
    """
    获取字典数据列表或分页
    """
    query = (
        select(SysDictData)
        .filter_by(type_code=query_data.type_code)
        .order_by(SysDictData.sort.asc())
    )
    if query_data.keyword:
        kw = ModelFilter.escape_like(query_data.keyword)
        query = query.filter(
            SysDictData.label.like(f"%{kw}%") | SysDictData.code.like(f"%{kw}%")
        )
    else:
        if query_data.code:
            query = query.filter(
                SysDictData.code.like(f"%{ModelFilter.escape_like(query_data.code)}%")
            )
        if query_data.label:
            query = query.filter(
                SysDictData.label.like(f"%{ModelFilter.escape_like(query_data.label)}%")
            )
        if query_data.status:
            query = query.filter(SysDictData.status == query_data.status)
        if query_data.createdAt and len(query_data.createdAt) >= 2:
            query = query.filter(
                SysDictData.created_at.between(
                    query_data.createdAt[0], query_data.createdAt[1]
                )
            )
        if query_data.updatedAt and len(query_data.updatedAt) >= 2:
            query = query.filter(
                SysDictData.updated_at.between(
                    query_data.updatedAt[0], query_data.updatedAt[1]
                )
            )
    if query_data.page and query_data.size:
        return db.paginate(query, page=query_data.page, per_page=query_data.size)
    else:
        return db.session.scalars(query).all()


@bp.get("/data/<string:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.output(SysDictDataSchema(exclude=["type"]))
def get_sys_dict_data(id: str):
    """
    查询字典数据
    """
    return success(db.session.scalar(select(SysDictData).filter_by(id=id)))


@bp.get("/data")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:list")
@bp.input(
    SysDictDataQuery.Schema(
        exclude=pagination_fields + ["keyword", "label", "createdAt", "updatedAt"]
    ),
    location="query",
)
@bp.output(SysDictDataSchema(exclude=["type"]))
def get_sys_dict_data_by_query(query_data: SysDictDataQuery):
    """
    查询字典数据
    """
    query = select(SysDictData).filter_by(type_code=query_data.type_code)
    if query_data.code:
        query = query.filter(SysDictData.code == query_data.code)
    if query_data.status:
        query = query.filter(SysDictData.status == query_data.status)
    return success(db.session.scalar(query))


@bp.post("/data")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:create")
@bp.input(SysDictDataCreateRequest, location="json")
def create_sys_dict_data(json_data: dict):
    """
    创建字典数据
    """
    sys_dict_data = SysDictData(**json_data)
    db.session.add(sys_dict_data)
    db.session.commit()
    return success()


@bp.put("/data/<string:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:edit")
@bp.input(SysDictDataUpdateRequest(partial=True), location="json")
def update_sys_dict_data(id: str, json_data: dict):
    """
    更新字典数据
    """
    sys_dict_data = db.session.scalar(select(SysDictData).filter_by(id=id))
    if not sys_dict_data:
        raise BizException(message="字典数据不存在")
    for key, value in json_data.items():
        if value is None:
            continue
        setattr(sys_dict_data, key, value)
    db.session.commit()
    return success()


@bp.delete("/data/<string:id>")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:delete")
def delete_sys_dict_data(id: str):
    """
    删除字典数据
    """
    sys_dict_data = db.session.scalar(select(SysDictData).filter_by(id=id))
    if not sys_dict_data:
        raise BizException(message="字典数据不存在")
    db.session.delete(sys_dict_data)
    db.session.commit()
    return success()


@bp.delete("/data/batch")
@jwt_required()
@bp.doc(security="JWT")
@permission("system:dict:delete")
@bp.input(SysDictDataBatchDeleteRequest.Schema, location="query")
def batch_delete_sys_dict_data(query_data: SysDictDataBatchDeleteRequest):
    """
    批量删除字典数据
    """

    if query_data.ids and len(query_data.ids) > 0:
        db.session.execute(delete(SysDictData).filter_by(id.in_(query_data.ids)))
    if query_data.type_code:
        db.session.execute(
            delete(SysDictData).filter_by(type_code=query_data.type_code)
        )
    db.session.commit()
    return success()