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(AuditLogs::Table)
                    .if_not_exists()
                    .col(
                        ColumnDef::new(AuditLogs::Id)
                            .uuid()
                            .not_null()
                            .primary_key(),
                    )
                    .col(ColumnDef::new(AuditLogs::TenantId).uuid().not_null())
                    .col(ColumnDef::new(AuditLogs::UserId).uuid().null())
                    .col(ColumnDef::new(AuditLogs::Action).string().not_null())
                    .col(ColumnDef::new(AuditLogs::ResourceType).string().not_null())
                    .col(ColumnDef::new(AuditLogs::ResourceId).uuid().null())
                    .col(ColumnDef::new(AuditLogs::OldValue).json().null())
                    .col(ColumnDef::new(AuditLogs::NewValue).json().null())
                    .col(ColumnDef::new(AuditLogs::IpAddress).string().null())
                    .col(ColumnDef::new(AuditLogs::UserAgent).text().null())
                    .col(
                        ColumnDef::new(AuditLogs::CreatedAt)
                            .timestamp_with_time_zone()
                            .not_null(),
                    )
                    .to_owned(),
            )
            .await?;

        manager
            .get_connection()
            .execute(sea_orm::Statement::from_string(
                sea_orm::DatabaseBackend::Postgres,
                "CREATE INDEX idx_audit_logs_tenant ON audit_logs (tenant_id)".to_string(),
            ))
            .await
            .map_err(|e| DbErr::Custom(e.to_string()))?;

        manager
            .get_connection()
            .execute(sea_orm::Statement::from_string(
                sea_orm::DatabaseBackend::Postgres,
                "CREATE INDEX idx_audit_logs_resource ON audit_logs (resource_type, resource_id)"
                    .to_string(),
            ))
            .await
            .map_err(|e| DbErr::Custom(e.to_string()))?;

        Ok(())
    }

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

#[derive(DeriveIden)]
enum AuditLogs {
    Table,
    Id,
    TenantId,
    UserId,
    Action,
    ResourceType,
    ResourceId,
    OldValue,
    NewValue,
    IpAddress,
    UserAgent,
    CreatedAt,
}