use crate::error::Error;
use crate::User;
use database::sqlx::SqliteExecutor;
use database::Error as DatabaseError;
use database::Users as DatabaseUsers;
use email_address::EmailAddress;
use hash::{PaperKey, Password};
use id::UserID;
use std::str::FromStr;

impl From<DatabaseUsers> for User {
    fn from(db: DatabaseUsers) -> Self {
        Self {
            id: UserID(db.id),
            created_at: db.created_at,
            updated_at: db.updated_at,
            is_admin: db.is_admin,
            username: db.username,
            name: db.name,
            email: db.email,
            password: db.password,
            password_recover: db.password_recover,
            paper_key: db.paper_key,
            is_archived: db.is_archived,
            timezone: db.timezone,
        }
    }
}

impl User {
    pub async fn get_initial_admin(conn: impl SqliteExecutor<'_>) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_initial_admin(conn)
            .await?
            .map(Self::from))
    }

    pub async fn insert(
        conn: impl SqliteExecutor<'_>,
        id: &UserID,
        is_admin: bool,
        username: &str,
        password: Option<&Password>,
    ) -> Result<Option<()>, Error> {
        Ok(
            DatabaseUsers::insert(conn, &id.0, is_admin, username, password.map(|p| p.hash()))
                .await?,
        )
    }

    async fn get_by_id(conn: impl SqliteExecutor<'_>, id: &UserID) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_one_by_id(conn, &id.0)
            .await?
            .map(Self::from))
    }

    async fn get_by_email(
        conn: impl SqliteExecutor<'_>,
        email: &EmailAddress,
    ) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_one_by_email(conn, email.as_str())
            .await?
            .map(Self::from))
    }

    async fn get_by_username(
        conn: impl SqliteExecutor<'_>,
        username: &str,
    ) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_one_by_username(conn, username)
            .await?
            .map(Self::from))
    }

    /// Get by ID, Email, Username (in that order)
    pub async fn get_by_login(
        conn: impl SqliteExecutor<'_>,
        login: &str,
    ) -> Result<Option<Self>, Error> {
        // Parse login as ID
        if let Ok(id) = UserID::from_str(login) {
            return Self::get_by_id(conn, &id).await;
        }

        // Parse login as email
        if let Ok(email) = EmailAddress::from_str(login) {
            return Self::get_by_email(conn, &email).await;
        }

        // Get user from username
        Self::get_by_username(conn, login).await
    }

    pub async fn get_one_from_authorization_code(
        conn: impl SqliteExecutor<'_>,
        code: &str,
    ) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_one_from_authorization_code(conn, code)
            .await?
            .map(Self::from))
    }

    pub async fn get_one_from_refresh_token(
        conn: impl SqliteExecutor<'_>,
        token: &str,
    ) -> Result<Option<Self>, Error> {
        Ok(DatabaseUsers::get_one_from_refresh_token(conn, token)
            .await?
            .map(Self::from))
    }

    pub async fn get_all(conn: impl SqliteExecutor<'_>) -> Result<Vec<Self>, Error> {
        Ok(DatabaseUsers::get_all(conn)
            .await?
            .into_iter()
            .map(Self::from)
            .collect::<Vec<_>>())
    }

    pub async fn set_username(
        &self,
        conn: impl SqliteExecutor<'_>,
        username: &str,
    ) -> Result<(), Error> {
        DatabaseUsers::set_username(conn, self.id.as_ref(), username)
            .await
            .map_err(|e| match e {
                DatabaseError::UniqueConstraint(column) => {
                    if &column == "username" {
                        Error::UsernameNotAvailable(username.into())
                    } else {
                        Error::ColumnNotAvailable(column)
                    }
                }
                _ => e.into(),
            })?;

        Ok(())
    }

    pub async fn set_name(&self, conn: impl SqliteExecutor<'_>, name: &str) -> Result<(), Error> {
        DatabaseUsers::set_name(conn, self.id.as_ref(), name).await?;

        Ok(())
    }

    pub async fn set_email(
        &self,
        conn: impl SqliteExecutor<'_>,
        email: EmailAddress,
    ) -> Result<(), Error> {
        let email = email.as_str();
        DatabaseUsers::set_email(conn, self.id.as_ref(), email)
            .await
            .map_err(|e| match e {
                DatabaseError::UniqueConstraint(column) => {
                    if &column == "email" {
                        Error::EmailNotAvailable(email.into())
                    } else {
                        Error::ColumnNotAvailable(column)
                    }
                }
                _ => e.into(),
            })?;

        Ok(())
    }

    pub async fn set_paper_key(
        &self,
        conn: impl SqliteExecutor<'_>,
        paper_key: Option<&PaperKey>,
    ) -> Result<(), Error> {
        let paper_key = paper_key.map(|paper_key| paper_key.hash());

        DatabaseUsers::set_paper_key(conn, self.id.as_ref(), paper_key).await?;

        Ok(())
    }

    pub async fn set_password(
        &self,
        conn: impl SqliteExecutor<'_>,
        password: Option<&Password>,
    ) -> Result<(), Error> {
        let password = password.map(|password| password.hash());

        DatabaseUsers::set_password(conn, self.id.as_ref(), password).await?;

        Ok(())
    }

    pub async fn set_timezone(
        &self,
        conn: impl SqliteExecutor<'_>,
        timezone: &str,
    ) -> Result<(), Error> {
        DatabaseUsers::set_timezone(conn, self.id.as_ref(), timezone).await?;

        Ok(())
    }
}