use crate::{
    get_user_from_token,
    model::{ApiReturn, Error},
    routes::api::v1::{
        DeleteUser, DisableTotp, UpdateUserIsVerified, UpdateUserPassword, UpdateUserRole,
        UpdateUserUsername,
    },
    State,
};
use axum::{
    Extension, Json,
    extract::Path,
    response::{IntoResponse, Redirect},
};
use axum_extra::extract::CookieJar;
use tetratto_core::{
    model::{
        auth::{Token, UserSettings},
        permissions::FinePermission,
    },
    DataManager,
};

pub async fn redirect_from_id(
    Extension(data): Extension<State>,
    Path(id): Path<String>,
) -> impl IntoResponse {
    match (data.read().await)
        .0
        .get_user_by_id(match id.parse::<usize>() {
            Ok(id) => id,
            Err(_) => return Redirect::to("/"),
        })
        .await
    {
        Ok(u) => Redirect::to(&format!("/@{}", u.username)),
        Err(_) => Redirect::to("/"),
    }
}

pub async fn redirect_from_ip(
    jar: CookieJar,
    Extension(data): Extension<State>,
    Path(ip): Path<String>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Redirect::to("/"),
    };

    if !user.permissions.check(FinePermission::MANAGE_BANS) {
        return Redirect::to("/");
    }

    match data.get_user_by_token(&ip).await {
        Ok(u) => Redirect::to(&format!("/@{}", u.username)),
        Err(_) => Redirect::to("/"),
    }
}

/// Update the settings of the given user.
pub async fn update_user_settings_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(mut req): Json<UserSettings>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    // check percentage themes
    if !req.theme_sat.is_empty() && !req.theme_sat.ends_with("%") {
        req.theme_sat = format!("{}%", req.theme_sat)
    }

    if !req.theme_lit.is_empty() && !req.theme_lit.ends_with("%") {
        req.theme_lit = format!("{}%", req.theme_lit)
    }

    // ...
    match data.update_user_settings(id, req).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Settings updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Update the password of the given user.
pub async fn update_user_password_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<UpdateUserPassword>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    match data
        .update_user_password(id, req.from, req.to, user, false)
        .await
    {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Password updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

pub async fn update_user_username_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<UpdateUserUsername>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    if data.get_user_by_username(&req.to).await.is_ok() {
        return Json(Error::UsernameInUse.into());
    }

    match data.update_user_username(id, req.to, user).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Username updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Update the tokens of the given user.
pub async fn update_user_tokens_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<Vec<Token>>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    match data.update_user_tokens(id, req).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Tokens updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Update the verification status of the given user.
pub async fn update_user_is_verified_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<UpdateUserIsVerified>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    match data
        .update_user_verified_status(id, req.is_verified, user)
        .await
    {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Verified status updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Update the role of the given user.
pub async fn update_user_role_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<UpdateUserRole>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    match data.update_user_role(id, req.role, user).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "User updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Update the current user's last seen value.
pub async fn seen_request(jar: CookieJar, Extension(data): Extension<State>) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    match data.seen_user(&user).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "User updated".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Delete the given user.
pub async fn delete_user_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<DeleteUser>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    match data
        .delete_user(id, &req.password, user.permissions.check_manager())
        .await
    {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "User deleted".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Enable TOTP for a user.
pub async fn enable_totp_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    match data.enable_totp(id, user).await {
        Ok(x) => Json(ApiReturn {
            ok: true,
            message: "TOTP enabled".to_string(),
            payload: Some(x),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Disable TOTP for a user.
pub async fn disable_totp_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<DisableTotp>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    // check totp code
    let other_user = match data.get_user_by_id(id).await {
        Ok(u) => u,
        Err(e) => return Json(e.into()),
    };

    if !data.check_totp(&other_user, &req.totp) {
        return Json(Error::NotAllowed.into());
    }

    // ...
    match data.update_user_totp(id, &String::new(), &Vec::new()).await {
        Ok(()) => Json(ApiReturn {
            ok: true,
            message: "TOTP disabled".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Refresh TOTP recovery codes for a user.
pub async fn refresh_totp_codes_request(
    jar: CookieJar,
    Path(id): Path<usize>,
    Extension(data): Extension<State>,
    Json(req): Json<DisableTotp>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    if user.id != id && !user.permissions.check(FinePermission::MANAGE_USERS) {
        return Json(Error::NotAllowed.into());
    }

    // check totp code
    let other_user = match data.get_user_by_id(id).await {
        Ok(u) => u,
        Err(e) => return Json(e.into()),
    };

    if !data.check_totp(&other_user, &req.totp) {
        return Json(Error::NotAllowed.into());
    }

    // ...
    let recovery_codes = DataManager::generate_totp_recovery_codes();
    match data.update_user_totp(id, &user.totp, &recovery_codes).await {
        Ok(()) => Json(ApiReturn {
            ok: true,
            message: "Recovery codes refreshed".to_string(),
            payload: Some(recovery_codes),
        }),
        Err(e) => Json(e.into()),
    }
}

/// Check if the given user has TOTP enabled.
pub async fn has_totp_enabled_request(
    Path(username): Path<String>,
    Extension(data): Extension<State>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match data.get_user_by_username(&username).await {
        Ok(u) => u,
        Err(e) => return Json(e.into()),
    };

    Json(ApiReturn {
        ok: true,
        message: "User exists".to_string(),
        payload: Some(!user.totp.is_empty()),
    })
}