package com.rthoni.intellij.codefromds.business;

import com.intellij.database.psi.DbDataSource;
import com.rthoni.intellij.codefromds.dbo.GenerateOptions;
import org.json.JSONObject;

import java.io.FileOutputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.HashMap;

/**
 * Created by robin on 11/15/16.
 */
public abstract class Generator {

    public static void saveOptions(GenerateOptions options) throws Exception {
        HashMap<String, Object> map = options.toMap();
        JSONObject obj = new JSONObject(map);
        FileOutputStream file = new FileOutputStream(options.getConfigPath());
        file.write(obj.toString(4).getBytes());
        file.close();
    }

    public static GenerateOptions loadOptions(String configPath) throws Exception {
        String data = Files.readAllLines(Paths.get(configPath), StandardCharsets.UTF_8).stream().reduce("", (s1, s2) -> s1 + s2);

        JSONObject obj = new JSONObject(data);
        String src = obj.getJSONObject("selection").getString("source");

        DbDataSource dataSource = Helper.findDataSource(src);
        if (dataSource == null) {
            throw new Exception("Data source " + src + " not found");
        }

        GenerateOptions options = new GenerateOptions(dataSource);
        options.setConfigPath(configPath);
        options.fromJson(obj);
        return options;
    }

    public static void generate(GenerateOptions options)
    {

    }
}