use crate::constants::SALT;
use bincode::{Decode, Encode};
use hex::encode;
use sha1::{Digest, Sha1};

/// 玩家信息
#[derive(Encode, Decode, PartialEq, Debug)]
pub struct PlayerInfo {
    pub display_name: String,
    pub name_hash: String,

    // 颜色 HSV
    pub color_hue: i32, // 0 - 360
    pub color_saturation: f64, // 0 - 1
    pub color_value: f64, // 0 - 1
}

impl Default for PlayerInfo {

    fn default() -> Self {
        PlayerInfo {
            display_name: String::from("Player"),
            name_hash: String::new(),
            color_hue: 86,
            color_saturation: 1.0,
            color_value: 1.0,
        }
    }
}

impl PlayerInfo {

    /// # 配置玩家 ID 和 名称
    /// self : 自身
    /// display_name : 玩家显示名称
    /// id : 玩家 ID
    /// return -> 自身
    pub fn name(&mut self, display_name: String, id: String) -> &mut Self {
        self.display_name = display_name;

        let combined = format!("{}{}{}", &self.display_name, id, SALT);
        let mut hasher = Sha1::new();
        hasher.update(combined);
        let result = hasher.finalize();

        self.name_hash = encode(&result[..]);
        self
    }

    /// # 配置玩家颜色
    /// self : 自身
    /// hue : 色调 0 -> RED; 120 -> GREEN; 240 -> BLUE
    /// saturation : 饱和度
    /// value : 明度
    /// return -> 自身
    pub fn color_hsv(&mut self, hue: i32, saturation: f64, value: f64) -> &mut Self {
        self.color_hue = hue.clamp(0, 360);
        self.color_saturation = saturation.clamp(0.0, 1.0);
        self.color_value = value.clamp(0.0, 1.0);
        self
    }
}