use std::path::PathBuf;

use clap::Parser;

#[derive(Clone, Parser, Debug)]
pub struct ServerConfig {
    /// Server's host.
    #[arg(
        name = "server-host",
        long,
        default_value = "0.0.0.0",
        env = "BOT_SERVER_HOST"
    )]

    /// Port that server is listening to.
    pub host: String,
    #[arg(
        name = "server-port",
        long,
        default_value = "8000",
        env = "BOT_SERVER_PORT"
    )]
    pub port: u16,

    /// This password is used to authenticate
    /// along with telegram code.
    #[arg(
        name = "server-pass",
        long,
        default_value = "pass",
        env = "BOT_SERVER_PASS"
    )]
    pub server_pass: String,

    /// This name is displayed on password page.
    #[arg(
        name = "server-username",
        long,
        default_value = "s3rius_san",
        env = "BOT_SERVER_USERNAME"
    )]
    pub username: String,

    #[arg(
        name = "server-static-dir",
        long,
        default_value = "static",
        env = "BOT_SERVER_STATIC_DIR"
    )]
    pub static_dir: PathBuf,
}

#[derive(Clone, Parser, Debug)]
pub struct BotConfig {
    /// Telegram APP id. How to get it: https://core.telegram.org/api/obtaining_api_id
    #[arg(name = "bot-app-id", long, env = "BOT_APP_ID")]
    pub app_id: i32,

    /// Telegram API hash.
    #[arg(name = "bot-api-hash", long, env = "BOT_API_HASH")]
    pub api_hash: String,

    /// Your account's phone.
    #[arg(name = "bot-phone", long, env = "BOT_ACCOUNT_PHONE")]
    pub phone: String,

    /// Password for two-factor authentication.
    #[arg(name = "bot-tfa", long, env = "BOT_TFA_PASSWORD")]
    pub tfa_password: Option<String>,

    /// Name of a file to save session to.
    #[arg(
        name = "bot-session-file",
        long,
        default_value = "saved.session",
        env = "BOT_SESSION_FILE"
    )]
    pub session_file: String,

    #[arg(
        name = "bot-excluded-chats",
        long,
        env = "BOT_EXCLUDED_CHATS",
        value_delimiter = ','
    )]
    pub excluded_chats: Vec<i64>,

    #[arg(
        name = "bot-currency-excluded-chats",
        long,
        env = "BOT_CURRENCY_EXCLUDED_CHATS",
        value_delimiter = ','
    )]
    pub currency_excluded_chats: Vec<i64>,
}

#[derive(Clone, Parser, Debug)]
#[command(author, version, about)]
pub struct Arguments {
    /// Application log level.
    #[arg(long, default_value = "INFO", env = "BOT_LOG_LEVEL")]
    pub log_level: log::LevelFilter,

    #[command(flatten)]
    pub server: ServerConfig,

    #[command(flatten)]
    pub bot: BotConfig,
}