use sqlx::Row;

pub async fn insert(
    pool: &sqlx::PgPool,
    scheduled_message: &textsender_models::message::scheduling::ScheduledMessage,
    user_id: &uuid::Uuid,
) -> Result<(uuid::Uuid, time::OffsetDateTime), sqlx::Error> {
    match sqlx::query(
        r#"
        INSERT INTO "scheduled_messages" (scheduled, status, user_id) 
        VALUES($1, $2, $3) RETURNING id, created;
        "#,
    )
    .bind(scheduled_message.scheduled)
    .bind(&scheduled_message.status)
    .bind(user_id)
    .fetch_one(pool)
    .await
    {
        Ok(row) => {
            let id: uuid::Uuid = row.try_get("id")?;
            let created: time::OffsetDateTime = row.try_get("created")?;
            Ok((id, created))
        }
        Err(_) => Err(sqlx::Error::RowNotFound),
    }
}

pub async fn get(
    pool: &sqlx::PgPool,
    id: &uuid::Uuid,
) -> Result<textsender_models::message::scheduling::ScheduledMessage, sqlx::Error> {
    match sqlx::query(
        r#"
        SELECT id, scheduled, created, status, user_id FROM "scheduled_messages"
        WHERE
            id = $1;
        "#,
    )
    .bind(id)
    .fetch_one(pool)
    .await
    {
        Ok(row) => match parse_row(&row).await {
            Ok(scheduled_message) => Ok(scheduled_message),
            Err(err) => Err(err),
        },
        Err(_) => Err(sqlx::Error::RowNotFound),
    }
}

pub async fn get_with_user_id(
    pool: &sqlx::PgPool,
    user_id: &uuid::Uuid,
) -> Result<Vec<textsender_models::message::scheduling::ScheduledMessage>, sqlx::Error> {
    match sqlx::query(
        r#"
        SELECT id, scheduled, created, status, user_id FROM "scheduled_messages"
        WHERE
            user_id = $1;
        "#,
    )
    .bind(user_id)
    .fetch_all(pool)
    .await
    {
        Ok(rows) => {
            let mut messages: Vec<textsender_models::message::scheduling::ScheduledMessage> =
                Vec::new();
            for row in rows {
                match parse_row(&row).await {
                    Ok(scheduled_message) => {
                        messages.push(scheduled_message);
                    }
                    Err(err) => {
                        return Err(err);
                    }
                }
            }

            Ok(messages)
        }
        Err(_) => Err(sqlx::Error::RowNotFound),
    }
}

async fn parse_row(
    row: &sqlx::postgres::PgRow,
) -> Result<textsender_models::message::scheduling::ScheduledMessage, sqlx::Error> {
    let id: uuid::Uuid = row.try_get("id")?;
    let scheduled: time::OffsetDateTime = row.try_get("scheduled")?;
    let status: String = row.try_get("status")?;
    let created: time::OffsetDateTime = row.try_get("created")?;
    let user_id: uuid::Uuid = row.try_get("user_id")?;

    Ok(textsender_models::message::scheduling::ScheduledMessage {
        id,
        scheduled: Some(scheduled),
        created: Some(created),
        status,
        user_id,
    })
}

pub mod sched_msg_event {
    use sqlx::Row;

    pub async fn insert(
        pool: &sqlx::PgPool,
        scheduled_message_event: &textsender_models::message::scheduling::ScheduledMessageEvent,
    ) -> Result<(uuid::Uuid, time::OffsetDateTime), sqlx::Error> {
        match sqlx::query(
            r#"
            INSERT INTO "scheduled_message_events" (contact_id, message_id, scheduled_message_id) 
            VALUES($1, $2, $3) RETURNING id, created;
            "#,
        )
        .bind(&scheduled_message_event.contact_id)
        .bind(&scheduled_message_event.message_id)
        .bind(&scheduled_message_event.scheduled_message_id)
        .fetch_one(pool)
        .await
        {
            Ok(row) => {
                let id: uuid::Uuid = row.try_get("id")?;
                let created: time::OffsetDateTime = row.try_get("created")?;
                Ok((id, created))
            }
            Err(_) => Err(sqlx::Error::RowNotFound),
        }
    }

    pub async fn get(
        pool: &sqlx::PgPool,
        id: &uuid::Uuid,
    ) -> Result<textsender_models::message::scheduling::ScheduledMessageEvent, sqlx::Error> {
        match sqlx::query(
            r#"
            SELECT id, contact_id, message_id, scheduled_message_id, created FROM "scheduled_message_events"
            WHERE
                id = $1;
            "#,
        )
        .bind(id)
        .fetch_one(pool)
        .await
        {
            Ok(row) => match parse_row(&row).await {
                Ok(scheduled_message_event) => Ok(scheduled_message_event),
                Err(err) => Err(err),
            },
            Err(_) => Err(sqlx::Error::RowNotFound),
        }
    }

    pub async fn get_with_scheduled_message_id(
        pool: &sqlx::PgPool,
        scheduled_message_id: &uuid::Uuid,
    ) -> Result<Vec<textsender_models::message::scheduling::ScheduledMessageEvent>, sqlx::Error>
    {
        match sqlx::query(
            r#"
            SELECT id, contact_id, message_id, scheduled_message_id, created FROM "scheduled_message_events"
            WHERE
                scheduled_message_id = $1;
            "#,
        )
        .bind(&scheduled_message_id)
        .fetch_all(pool)
        .await
        {
            Ok(rows) => {
                let mut scheduled_message_events: Vec<textsender_models::message::scheduling::ScheduledMessageEvent> =
                    Vec::new();
                for row in rows {
                    match parse_row(&row).await {
                        Ok(scheduled_message_event) => {
                            scheduled_message_events.push(scheduled_message_event);
                        }
                        Err(err) => {
                            return Err(err);
                        }
                    }
                }

                Ok(scheduled_message_events)
            }
            Err(_) => Err(sqlx::Error::RowNotFound),
        }
    }

    async fn parse_row(
        row: &sqlx::postgres::PgRow,
    ) -> Result<textsender_models::message::scheduling::ScheduledMessageEvent, sqlx::Error> {
        let id: uuid::Uuid = row.try_get("id")?;
        let contact_id: uuid::Uuid = row.try_get("contact_id")?;
        let message_id: uuid::Uuid = row.try_get("message_id")?;
        let scheduled_message_id: uuid::Uuid = row.try_get("scheduled_message_id")?;
        let created: time::OffsetDateTime = row.try_get("created")?;

        Ok(
            textsender_models::message::scheduling::ScheduledMessageEvent {
                id,
                contact_id,
                message_id,
                scheduled_message_id,
                created: Some(created),
            },
        )
    }
}