use std::{str::Chars, fmt::Display};

use crate::{square::Square, bitboard::BitboardFns, board::piece::Piece};

#[derive(Debug, Clone, PartialEq, Eq, Copy)]
pub enum MoveKind {
    Quiet,
    Capture,
    Castle,
    EnPassant,
    DoublePush,
    Promotion(Piece),
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Move {
    pub source: Square,
    pub target: Square,
    pub kind: MoveKind,
}

impl Move {
    pub fn print(&self) {
        let bb = self.source.to_bitboard() | self.target.to_bitboard();
        bb.print(format!("{:?}", self).as_str());
    }

    /// Tactical move is a move that changes material score
    pub fn is_tactical(&self) -> bool {
        matches!(self.kind, MoveKind::Capture | MoveKind::EnPassant)
    }

    pub fn from_notation(mut notation: Chars) -> Self {
        let source = Square::from_notation(&mut notation).unwrap();
        let target = Square::from_notation(&mut notation).unwrap();
        Move { source, target, kind: MoveKind::Quiet }
    }
}

impl Display for Move {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}{}", self.source, self.target)
    }
}