use sea_orm::entity::prelude::*;
use serde::{Deserialize, Serialize};
use chrono::{DateTime, Utc};

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
#[sea_orm(table_name = "menus")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: i32,
    pub parent_id: Option<i32>,
    pub name: String,
    pub path: Option<String>,
    pub component: Option<String>,
    pub icon: Option<String>,
    pub sort_order: i32,
    pub menu_type: i8, // 0: 目录, 1: 菜单, 2: 按钮
    pub visible: i8, // 0: 隐藏, 1: 显示
    pub status: i8, // 0: 禁用, 1: 启用
    pub permission_key: Option<String>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
    #[sea_orm(
        belongs_to = "Entity",
        from = "Column::ParentId",
        to = "Column::Id"
    )]
    Parent,
    #[sea_orm(
        has_many = "Entity",
        from = "Column::Id",
        to = "Column::ParentId"
    )]
    Children,
}

impl Related<Entity> for Entity {
    fn to() -> RelationDef {
        Relation::Parent.def()
    }
}

impl ActiveModelBehavior for ActiveModel {}

// 菜单创建请求
#[derive(Debug, Deserialize)]
pub struct CreateMenuRequest {
    pub parent_id: Option<i32>,
    pub name: String,
    pub path: Option<String>,
    pub component: Option<String>,
    pub icon: Option<String>,
    pub sort_order: i32,
    pub menu_type: i8,
    pub visible: i8,
    pub permission_key: Option<String>,
}

// 菜单更新请求
#[derive(Debug, Deserialize)]
pub struct UpdateMenuRequest {
    pub parent_id: Option<i32>,
    pub name: Option<String>,
    pub path: Option<String>,
    pub component: Option<String>,
    pub icon: Option<String>,
    pub sort_order: Option<i32>,
    pub menu_type: Option<i8>,
    pub visible: Option<i8>,
    pub status: Option<i8>,
    pub permission_key: Option<String>,
}

// 菜单树响应
#[derive(Debug, Serialize, Clone)]
pub struct MenuTreeResponse {
    pub id: i32,
    pub parent_id: Option<i32>,
    pub name: String,
    pub path: Option<String>,
    pub component: Option<String>,
    pub icon: Option<String>,
    pub sort_order: i32,
    pub menu_type: i8,
    pub visible: i8,
    pub status: i8,
    pub permission_key: Option<String>,
    pub children: Vec<MenuTreeResponse>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}