use sea_orm::{EnumIter, Iterable};
use sea_orm_migration::prelude::*;

use crate::m20220101_000001_create_table::Account;
use crate::{create_enum, drop_enum};

#[derive(DeriveMigrationName)]
pub struct Migration;

#[async_trait::async_trait]
impl MigrationTrait for Migration {
    async fn up(&self, m: &SchemaManager) -> Result<(), DbErr> {
        create_enum::<ImageState>(m).await?;

        m.create_table(
            Table::create()
                .table(Image::Images)
                .if_not_exists()
                .col(
                    ColumnDef::new(Image::Id)
                        .integer()
                        .not_null()
                        .auto_increment()
                        .primary_key(),
                )
                .col(ColumnDef::new(Image::LocalPath).string().not_null())
                .col(ColumnDef::new(Image::PublicPath).string().not_null())
                .col(
                    ColumnDef::new(Image::ImageState)
                        .enumeration(ImageState::ImageState, ImageState::iter().skip(1))
                        .default(ImageState::Pending.to_string())
                        .not_null(),
                )
                .col(ColumnDef::new(Image::AccountId).integer().not_null())
                .col(
                    ColumnDef::new(Image::CreatedAt)
                        .timestamp()
                        .default(SimpleExpr::Custom("NOW()".to_owned()))
                        .not_null(),
                )
                .col(
                    ColumnDef::new(Image::UpdatedAt)
                        .timestamp()
                        .default(SimpleExpr::Custom("NOW()".to_owned()))
                        .not_null(),
                )
                .if_not_exists()
                .to_owned(),
        )
        .await?;

        m.create_foreign_key(
            ForeignKeyCreateStatement::new()
                .from_tbl(Image::Images)
                .from_col(Image::AccountId)
                .to_tbl(Account::Accounts)
                .to_col(Account::Id)
                .to_owned(),
        )
        .await?;

        Ok(())
    }

    async fn down(&self, m: &SchemaManager) -> Result<(), DbErr> {
        m.drop_table(Table::drop().table(Image::Images).to_owned())
            .await?;

        drop_enum::<ImageState>(m).await?;

        Ok(())
    }
}

#[derive(Iden)]
pub enum Image {
    Images,
    Id,
    LocalPath,
    PublicPath,
    ImageState,
    AccountId,
    CreatedAt,
    UpdatedAt,
}

#[derive(Iden, EnumIter)]
pub enum ImageState {
    ImageState,
    Pending,
    Approved,
    Banned,
}