use sea_orm::entity::prelude::*;

#[derive(Copy, Clone, Default, Debug, DeriveEntity)]
pub struct Entity;

impl EntityName for Entity {
    fn table_name(&self) -> &str {
        "lineitem"
    }
}

#[derive(Clone, Debug, PartialEq, DeriveModel, DeriveActiveModel)]
pub struct Model {
    pub id: i32,
    pub price: f32,
    pub quantity: i32,
    pub order_id: Option<i32>,
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
pub enum Column {
    Id,
    Price,
    Quantity,
    OrderId,
}

#[derive(Copy, Clone, Debug, EnumIter, DerivePrimaryKey)]
pub enum PrimaryKey {
    Id,
}

impl PrimaryKeyTrait for PrimaryKey {
    fn auto_increment() -> bool {
        true
    }
}

#[derive(Copy, Clone, Debug, EnumIter)]
pub enum Relation {
    Order,
}

impl ColumnTrait for Column {
    type EntityName = Entity;

    fn def(&self) -> ColumnDef {
        match self {
            Self::Id => ColumnType::Integer.def(),
            Self::Price => ColumnType::Money(Some((19, 4))).def(),
            Self::Quantity => ColumnType::Integer.def(),
            Self::OrderId => ColumnType::Integer.def(),
        }
    }
}

impl RelationTrait for Relation {
    fn def(&self) -> RelationDef {
        match self {
            Self::Order => Entity::belongs_to(super::order::Entity)
                .from(Column::Id)
                .to(super::order::Column::CustomerId)
                .into(),
        }
    }
}

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

impl ActiveModelBehavior for ActiveModel {}