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use serde::{Deserialize, Serialize};
use serde_json::{Map, Value};
use serde_with::{serde_as, skip_serializing_none, DisplayFromStr};

/// Regular options of aria2 download tasks.
///
/// For more options, add them to `extra_options` field, which is Object in `serde_json`.
///
/// You can find all options in <https://aria2.github.io/manual/en/html/aria2c.html#input-file>
#[serde_as]
#[skip_serializing_none]
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, Default)]
#[serde(rename_all = "kebab-case")]
pub struct TaskOptions {
    pub header: Option<Vec<String>>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub split: Option<i32>,

    pub all_proxy: Option<String>,

    pub dir: Option<String>,

    pub out: Option<String>,

    pub gid: Option<String>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub r#continue: Option<bool>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub auto_file_renaming: Option<bool>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub check_integrity: Option<bool>,

    /// Close connection if download speed is lower than or equal to this value(bytes per sec).
    ///
    /// 0 means aria2 does not have a lowest speed limit.
    ///
    /// You can append K or M (1K = 1024, 1M = 1024K).
    ///
    /// This option does not affect BitTorrent downloads.
    ///
    /// Default: 0
    pub lowest_speed_limit: Option<String>,

    /// Set max download speed per each download in bytes/sec. 0 means unrestricted.
    ///
    /// You can append K or M (1K = 1024, 1M = 1024K).
    ///
    /// To limit the overall download speed, use --max-overall-download-limit option.
    ///
    /// Default: 0
    pub max_download_limit: Option<String>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub max_connection_per_server: Option<i32>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub max_tries: Option<i32>,

    #[serde_as(as = "Option<DisplayFromStr>")]
    pub timeout: Option<i32>,

    #[serde(flatten)]
    pub extra_options: Map<String, Value>,
}