use sea_orm_migration::prelude::*;

#[derive(DeriveMigrationName)]
pub struct Migration;

#[async_trait::async_trait]
impl MigrationTrait for Migration {
    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        manager
            .create_table(
                Table::create()
                    .table(Flows::Table)
                    .if_not_exists()
                    .col(ColumnDef::new(Flows::Id).string_len(64).not_null().primary_key())
                    .col(ColumnDef::new(Flows::Name).string().null())
                    .col(ColumnDef::new(Flows::Yaml).text().null())
                    .col(ColumnDef::new(Flows::DesignJson).text().null())
                    .col(ColumnDef::new(Flows::CreatedAt).timestamp().not_null().default(Expr::current_timestamp()))
                    .col(ColumnDef::new(Flows::UpdatedAt).timestamp().not_null().default(Expr::current_timestamp()))
                    .to_owned()
            )
            .await?;
        Ok(())
    }

    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        manager.drop_table(Table::drop().table(Flows::Table).to_owned()).await
    }
}

#[derive(Iden)]
enum Flows {
    Table,
    Id,
    Name,
    Yaml,
    DesignJson,
    CreatedAt,
    UpdatedAt,
}