using System;
using System.Collections.Generic;
using System.Runtime.InteropServices.JavaScript;
using GlobalClassLib;

namespace FNAF_Clone.Map;

public class ClientMapManager {
    private static MapTileProjection[,] map = new MapTileProjection[5, 5];
    public static MapTileProjection Get((int x, int y) coords) => map[coords.x, coords.y];
    public static MapTileProjection Get(int tileId) => Get(IdToCoords(tileId));

    private static bool inverted;
    public static void InitMap(bool invert = false) {
        inverted = invert;
        
        IdToCoords = invert ? _IdToCoordsInverse : _IdToCoords;
        CoordsToId = invert ? _CoordsToIdInverse : _CoordsToId;
        
        for (int i = 0; i < 5; i++){
            for (int j = 0; j < 2; j++){
                map[i, j] = new MapTileProjection(CoordsToId(i, j));
            }
            map[i, 2] = new MapTileProjection(CoordsToId(i, 2));
            for (int j = 3; j < 5; j++){
                map[i, j] = new MapTileProjection(CoordsToId(i, j));

            }
        }
    }
    
    public static void InitConnectors(TileConnectorProjection[] connectors) {
        foreach (var con in connectors){
            // (int x, int y) coords1 = MapTileProjection.IdToCoords(con.Tiles.tile1.Id);
            // (int x, int y) coords2 = MapTileProjection.IdToCoords(con.Tiles.tile2.Id);
            map[con.Tiles.tile1.GridPosition.x, con.Tiles.tile1.GridPosition.y].AddConnector(con);
        }
    }
    
    public static TileConnectorProjection GetConnector((int, int) id) => Get(id.Item1).GetConnector(id.Item2); 

    public static TileConnectorProjection[] GetConnectors(int tileId) => Get(IdToCoords(tileId)).GetAllConnectors();
    
    public static TileConnectorProjection[] GetAllConnectors() {
        List<TileConnectorProjection> connectors = new();
        
        for (int i = 0; i < 5; i++){
            for (int j = 0; j < 5; j++){
                MapTileProjection tile = map[i, j];
                Array.ForEach(tile.GetAllConnectors(), c => {
                    if(tile.Id < c.OtherTile(tile).Id)
                        connectors.Add(c);
                });
            }
        }
        
        return connectors.ToArray();
    }
    
    
    public const int ID_X_OFFSET = 5; // map grid height
    public static Func<int, int, int> CoordsToId{ get; private set; }
    public static Func<int, (int x, int y)> IdToCoords{ get; private set; }

    private static Func<int, (int x, int y)> _IdToCoords = id => (id / ID_X_OFFSET, id % ID_X_OFFSET);
    private static Func<int, (int x, int y)> _IdToCoordsInverse = id => (ID_X_OFFSET - 1 - (id / ID_X_OFFSET), ID_X_OFFSET - 1 - (id % ID_X_OFFSET));
    private static Func<int, int, int> _CoordsToId = (x, y) => x * ID_X_OFFSET + y;
    private static Func<int, int, int> _CoordsToIdInverse = (x, y) => (ID_X_OFFSET - 1 - x) * ID_X_OFFSET + (ID_X_OFFSET - 1 - y);
}