use anyhow::Context;

use clap::Parser;

use dialoguer::Password;

use futures_util::SinkExt;

use tokio_stream::StreamExt;

use crate::{

    client::commands::erroneous_server_response,

    core::{

        protocol::{

            ClientToServerMessageStream, ListUsersError, Request, Response,

            print_set_password_output_status,

        },

        types::MySQLUser,

    },

};

#[derive(Parser, Debug, Clone)]

pub struct PasswdUserArgs {

    username: MySQLUser,

    #[clap(short, long)]

    password_file: Option<String>,

    /// Print the information as JSON

    #[arg(short, long)]

    json: bool,

}

            "Passwords do not match",

        )

pub async fn passwd_user(

    args: PasswdUserArgs,

    mut server_connection: ClientToServerMessageStream,

) -> anyhow::Result<()> {

    // TODO: create a "user" exists check" command

    let message = Request::ListUsers(Some(vec![args.username.to_owned()]));

    if let Err(err) = server_connection.send(message).await {

        server_connection.close().await.ok();

        anyhow::bail!(err);

    }

    let response = match server_connection.next().await {

        Some(Ok(Response::ListUsers(users))) => users,

        response => return erroneous_server_response(response),

    };

    match response

        .get(&args.username)

        .unwrap_or(&Err(ListUsersError::UserDoesNotExist))

    {

        Ok(_) => {}

        Err(err) => {

            server_connection.send(Request::Exit).await?;

            server_connection.close().await.ok();

            anyhow::bail!("{}", err.to_error_message(&args.username));

        }

    }

    let password = if let Some(password_file) = args.password_file {

        std::fs::read_to_string(password_file)

            .context("Failed to read password file")?

            .trim()

            .to_string()

    } else {

        read_password_from_stdin_with_double_check(&args.username)?

    };

    let message = Request::PasswdUser((args.username.to_owned(), password));

    if let Err(err) = server_connection.send(message).await {

        server_connection.close().await.ok();

        anyhow::bail!(err);

    }

    let result = match server_connection.next().await {

        Some(Ok(Response::SetUserPassword(result))) => result,

        response => return erroneous_server_response(response),

    };

    server_connection.send(Request::Exit).await?;

    print_set_password_output_status(&result, &args.username);

    Ok(())

}