using FNAF_Server.Map;
using GlobalClassLib;

namespace FNAF_Server.Enemies;

public abstract class RoamingPathfinder : Pathfinder{
    protected RoamingPathfinder(Enemy enemy) : base(enemy) {
    }
    
    protected Dictionary<MapTile, int> Crawl(MapTile tile) {
        Dictionary<MapTile, int> distances = new(){ [tile] = 0 };
        CrawlStep(tile, distances);
        return distances;
    }
        
    private void CrawlStep(MapTile tile, Dictionary<MapTile, int> distances) {
        List<MapTile> neighbours = GetNeighbours(tile, 
            c => (!c.Blocked || c.Type == ConnectorType.DOOR_OFFICE) && tile != Enemy.Location,
            t => 
                (!distances.ContainsKey(t) || distances[t] > distances[tile]) && 
                (!Enemy.BlocksTile || EnemyManager.GetByLocation(t).All(e => !e.BlocksTile || e == Enemy)) &&
                Server.Players.All(p => p.Value.state.officeTileId != t.Id));
            
        neighbours.ForEach(t => distances[t] = distances[tile] + tile.GetConnector(t)!.Value);
            
        if (neighbours.Count != 0){
            neighbours.ForEach(t => CrawlStep(t, distances));
        }
    }
}