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//! Clan types

use errors::UnknownVariant;

#[cfg(feature = "races")]
use races::Race;

use std::fmt::{Display, Formatter, Result as FmtResult};
use std::str::FromStr;

/// The clans of the playable races in the game.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
pub enum Clan {
  // Au Ra
  Raen,
  Xaela,
  // Elezen
  Duskwight,
  Wildwood,
  // Hrothgar
  Helion,
  TheLost,
  // Hyur
  Highlander,
  Midlander,
  // Lalafell
  Dunesfolk,
  Plainsfolk,
  // Miqo'te
  KeeperOfTheMoon,
  SeekerOfTheSun,
  // Roegadyn
  Hellsguard,
  SeaWolf,
  // Viera
  Rava,
  Veena,
}

impl Clan {
  #[cfg(feature = "all_const")]
  pub const ALL: [Clan; 16] = [
    Clan::Raen,
    Clan::Xaela,
    Clan::Duskwight,
    Clan::Wildwood,
    Clan::Helion,
    Clan::TheLost,
    Clan::Highlander,
    Clan::Midlander,
    Clan::Dunesfolk,
    Clan::Plainsfolk,
    Clan::KeeperOfTheMoon,
    Clan::SeekerOfTheSun,
    Clan::Hellsguard,
    Clan::SeaWolf,
    Clan::Rava,
    Clan::Veena,
  ];

  /// Returns the string variant of this world.
  pub fn as_str(&self) -> &'static str {
    match *self {
      Clan::Raen => "Raen",
      Clan::Xaela => "Xaela",
      Clan::Duskwight => "Duskwight",
      Clan::Wildwood => "Wildwood",
      Clan::Helion => "Helion",
      Clan::TheLost => "TheLost",
      Clan::Highlander => "Highlander",
      Clan::Midlander => "Midlander",
      Clan::Dunesfolk => "Dunesfolk",
      Clan::Plainsfolk => "Plainsfolk",
      Clan::KeeperOfTheMoon => "KeeperOfTheMoon",
      Clan::SeekerOfTheSun => "SeekerOfTheSun",
      Clan::Hellsguard => "Hellsguard",
      Clan::SeaWolf => "SeaWolf",
      Clan::Rava => "Rava",
      Clan::Veena => "Veena",
    }
  }

  pub fn name(&self) -> &'static str {
    match *self {
      Clan::Raen => "Raen",
      Clan::Xaela => "Xaela",
      Clan::Duskwight => "Duskwight",
      Clan::Wildwood => "Wildwood",
      Clan::Helion => "Helion",
      Clan::TheLost => "The Lost",
      Clan::Highlander => "Highlander",
      Clan::Midlander => "Midlander",
      Clan::Dunesfolk => "Dunesfolk",
      Clan::Plainsfolk => "Plainsfolk",
      Clan::KeeperOfTheMoon => "Keeper of the Moon",
      Clan::SeekerOfTheSun => "Seeker of the Sun",
      Clan::Hellsguard => "Hellsguard",
      Clan::SeaWolf => "Sea Wolf",
      Clan::Rava => "Rava",
      Clan::Veena => "Veena",
    }
  }

  #[cfg(feature = "races")]
  pub fn race(&self) -> Race {
    match *self {
      Clan::Raen | Clan::Xaela => Race::AuRa,
      Clan::Duskwight | Clan::Wildwood => Race::Elezen,
      Clan::Helion | Clan::TheLost => Race::Hrothgar,
      Clan::Highlander | Clan::Midlander => Race::Hyur,
      Clan::Dunesfolk | Clan::Plainsfolk => Race::Lalafell,
      Clan::KeeperOfTheMoon | Clan::SeekerOfTheSun => Race::Miqote,
      Clan::Hellsguard | Clan::SeaWolf => Race::Roegadyn,
      Clan::Rava | Clan::Veena => Race::Viera,
    }
  }
}

impl FromStr for Clan {
  type Err = UnknownVariant;

  /// Parses a string `s` to return a value of this type.
  ///
  /// This is case-insensitive.
  fn from_str(s: &str) -> Result<Self, Self::Err> {
    let world = match s.to_lowercase().as_str() {
      "raen" => Clan::Raen,
      "xaela" => Clan::Xaela,
      "duskwight" => Clan::Duskwight,
      "wildwood" => Clan::Wildwood,
      "helion" => Clan::Helion,
      "thelost" | "the lost" => Clan::TheLost,
      "highlander" => Clan::Highlander,
      "midlander" => Clan::Midlander,
      "dunesfolk" => Clan::Dunesfolk,
      "plainsfolk" => Clan::Plainsfolk,
      "keeperofthemoon" | "keeper of the moon" => Clan::KeeperOfTheMoon,
      "seekerofthesun" | "seeker of the sun" => Clan::SeekerOfTheSun,
      "hellsguard" => Clan::Hellsguard,
      "seawolf" | "sea wolf" => Clan::SeaWolf,
      "rava" => Clan::Rava,
      "veena" => Clan::Veena,
      _ => return Err(UnknownVariant("Clan", s.into()))
    };

    Ok(world)
  }
}

impl Display for Clan {
  fn fmt(&self, f: &mut Formatter) -> FmtResult {
    write!(f, "{}", self.name())
  }
}