//! Migration: update Visit model for scheduling + add Client.color
//! Visit: Remove scheduled_at, duration_minutes; Add user_id, visit_date, time_start, time_end
//! Client: Add color

#[derive(Debug, Copy, Clone)]
pub(super) struct Migration;
impl ::cot::db::migrations::Migration for Migration {
    const APP_NAME: &'static str = "web-petting";
    const MIGRATION_NAME: &'static str = "m_0002_visit_schedule";
    const DEPENDENCIES: &'static [::cot::db::migrations::MigrationDependency] = &[
        ::cot::db::migrations::MigrationDependency::migration("web-petting", "m_0001_initial"),
    ];
    const OPERATIONS: &'static [::cot::db::migrations::Operation] = &[
        // Add color to client (nullable for existing rows)
        ::cot::db::migrations::Operation::add_field()
            .table_name(::cot::db::Identifier::new("web_petting__client"))
            .field(
                ::cot::db::migrations::Field::new(
                    ::cot::db::Identifier::new("color"),
                    <Option<String> as ::cot::db::DatabaseField>::TYPE,
                )
                .set_null(<Option<String> as ::cot::db::DatabaseField>::NULLABLE)
            )
            .build(),
        // Remove old visit fields
        ::cot::db::migrations::Operation::remove_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(::cot::db::migrations::Field::new(
                ::cot::db::Identifier::new("scheduled_at"),
                <chrono::NaiveDateTime as ::cot::db::DatabaseField>::TYPE,
            ))
            .build(),
        ::cot::db::migrations::Operation::remove_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(::cot::db::migrations::Field::new(
                ::cot::db::Identifier::new("duration_minutes"),
                <Option<i32> as ::cot::db::DatabaseField>::TYPE,
            ).set_null(<Option<i32> as ::cot::db::DatabaseField>::NULLABLE))
            .build(),
        // Add new fields
        ::cot::db::migrations::Operation::add_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(
                ::cot::db::migrations::Field::new(
                    ::cot::db::Identifier::new("user_id"),
                    <cot::db::ForeignKey<crate::models::User> as ::cot::db::DatabaseField>::TYPE,
                )
                .foreign_key(
                    <crate::models::User as ::cot::db::Model>::TABLE_NAME,
                    <crate::models::User as ::cot::db::Model>::PRIMARY_KEY_NAME,
                    ::cot::db::ForeignKeyOnDeletePolicy::Restrict,
                    ::cot::db::ForeignKeyOnUpdatePolicy::Restrict,
                )
                .set_null(<cot::db::ForeignKey<crate::models::User> as ::cot::db::DatabaseField>::NULLABLE)
            )
            .build(),
        ::cot::db::migrations::Operation::add_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(
                ::cot::db::migrations::Field::new(
                    ::cot::db::Identifier::new("visit_date"),
                    <chrono::NaiveDate as ::cot::db::DatabaseField>::TYPE,
                )
                .set_null(<chrono::NaiveDate as ::cot::db::DatabaseField>::NULLABLE)
            )
            .build(),
        ::cot::db::migrations::Operation::add_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(
                ::cot::db::migrations::Field::new(
                    ::cot::db::Identifier::new("time_start"),
                    <String as ::cot::db::DatabaseField>::TYPE,
                )
                .set_null(<String as ::cot::db::DatabaseField>::NULLABLE)
            )
            .build(),
        ::cot::db::migrations::Operation::add_field()
            .table_name(::cot::db::Identifier::new("web_petting__visit"))
            .field(
                ::cot::db::migrations::Field::new(
                    ::cot::db::Identifier::new("time_end"),
                    <String as ::cot::db::DatabaseField>::TYPE,
                )
                .set_null(<String as ::cot::db::DatabaseField>::NULLABLE)
            )
            .build(),
    ];
}