package electrosphere.server.macro;

import java.io.File;
import java.util.List;

import electrosphere.client.entity.character.CharacterDescription;
import electrosphere.game.data.block.BlockFab;
import electrosphere.server.character.CharacterService;
import electrosphere.server.macro.character.Character;
import electrosphere.server.macro.structure.Structure;
import electrosphere.util.FileUtils;

/**
 * Loads macro data
 */
public class MacroDataLoader {
    
    /**
     * Loads macro data from a save
     * @param saveName The name of the save
     * @return The macro data
     */
    public static MacroData loadFromSave(String saveName){
        
        MacroData rVal = FileUtils.loadObjectFromSavePath(saveName, "macro.json", MacroData.class);

        //preload and assign structure fabs
        for(Structure structure : rVal.getStructures()){
            File fabFile = FileUtils.getAssetFile(structure.getFabPath());
            if(!fabFile.exists()){
                throw new Error("Failed to locate structure that does not exist! " + fabFile.getAbsolutePath());
            }
            BlockFab fab = BlockFab.read(fabFile);
            if(fab == null){
                throw new Error("Failed to read fab!");
            }
            structure.setFab(fab);
        }

        //inject characters from character service
        List<CharacterDescription> characters = CharacterService.getAllCharacters();
        for(CharacterDescription desc : characters){
            int targetId = Integer.parseInt(desc.getId());
            Character macroCharacter = rVal.getCharacter(targetId);
            if(macroCharacter == null){
                macroCharacter = new Character();
                macroCharacter.setId(targetId);
                rVal.characters.add(macroCharacter);
            }
        }

        return rVal;
    }

}