//
//  TetrominoView.swift
//  Tetris
//
//  Created by Shadowfacts on 10/15/19.
//  Copyright © 2019 Shadowfacts. All rights reserved.
//

import SwiftUI
import TetrisKit

public struct TetrominoView: View {
    let size: CGFloat
    let tetromino: Tetromino
    let color: Color
    let border: Bool
    
    public init(size: CGFloat, tetromino: Tetromino, color: Color? = nil, border: Bool = true) {
        self.size = size
        self.tetromino = tetromino
        self.color = color ?? tetromino.color
        self.border = border
    }
    
    public var body: some View {
        GridView(rows: tetromino.shape.count, columns: tetromino.shape.first!.count) { (col, row, _) in
            if row < self.tetromino.shape.count && col < self.tetromino.shape[row].count && self.tetromino.shape[row][col] {
                if self.border {
                    Rectangle()
                        .foregroundColor(self.color)
                        .frame(width: self.size, height: self.size)
                        .border(self.tetromino.borderColor, width: 6)
                } else {
                    Rectangle()
                        .foregroundColor(self.color)
                        .frame(width: self.size, height: self.size)
                }
            } else {
                Rectangle()
                    .foregroundColor(.clear)
                    .frame(width: self.size, height: self.size)
            }
        }
    }
}

struct TetrominoView_Previews: PreviewProvider {
    static var previews: some View {
        Group {
            TetrominoView(size: 50, tetromino: .t)
            TetrominoView(size: 50, tetromino: .i)
            TetrominoView(size: 50, tetromino: .z)
            TetrominoView(size: 50, tetromino: .j)
        }
    }
}